[From the U.S. Government Printing Office, www.gpo.gov]



                                                                                Attachment #95.7.2

                 Assessment of Septic System

                   Design Criteria on Coastal

                 Habitats and Water Quality



                                                 A Final Report to

               The New Hampshire Office of State Planning, New Hampshire Coastal Program


                                                    Submitted by

                  Dr. Stephen H. Jonesl,2, Dr. Richard Langanl,3, Dr. Larry K. Brannaka4,
                             Dr. Thomas P. Ballestero4 and Mr. Daniel Marquis1,2

                               I Jackson Estuarine Laboratory, University of New Hampshire
                             2Department of Natural Resources, University of New Hampshire
                                  3Department of Zoology, University of New Hampshire
                             4Departmnent of Civil Engineering, University of New Hampshire



                                                      July, 1996



               This Report was funded in part by a grant from the Office of State Planning, New Hampshire
               , as authorized by the National Oceanic and Atmospheric Administration (NOAA),
                   TD       lumber  NA570ZO320
                   778
                  .A87
                   1996








                                                                 0FFICE OF STATE PLANNING
                                                                 
                                                                 C0ASTAL PROGRAM 











                                                          TABLE OF CONTENTS

                                                                                                                    EW
                  Executive Summary                                                                                     in
                  Introduction                                                                                          1

                  Previous Studies on Bacterial and Nutrient Dynamics in the Subsurface Environment                     2
                          Background                                                                                    2
                          Septic system design and function                                                             2
                          Potential pollutants                                                                          3
                          Nitrogen transport                                                                            4
                          Phosphorus transport                                                                          4
                          Transport to surface water                                                                    5
                          Microbial transport                                                                           5
                  Site selection process                                                                                7
                  Soils and site characteristics                                                                        7
                  Seabrook well installations and hydrology                                                             7
                          Procedures                                                                                    7
                                   Installation of small diameter monitoring wells                                      7
                          Results                                                                                       9
                                   Tidal influence of water levels and groundwater flow                                 9
                                   Hydraulic conductivity testing of Seabrook wells                                     10
                                           Procedure                                                                    11
                                           Analysis                                                                     12
                                           Results                                                                      12
                                   Groundwater flow characteristics                                                     13
                                   Analysis of the use of soil mottling as the predictor of estimated
                                    seasonal high water table (ESHWf)                                                   14
                  Water Quality and Contamination                                                                       16
                          Procedures                                                                                    16
           D<                      Well sampling                                                                        16
                                   Surface water sampling                                                               17
                                   Lysimeter installation                                                               17
                                   Lysimeter sampling                                                                   17
                                   Soil coring of EDAs                                                                  17
                                   Soil core trarisects                                                                 18
                                   Water and soil sample analysis                                                       18
                          Results                                                                                       19
          C)o                      Seabrook site assessments                                                            19
                                   Inter-site comparisons                                                               28
                                   Surface water quality                                                                29
                                   Soil cores                                                                           30
                                           Vertical transport                                                           31
                                           Horizontal transport                                                         31
                                   Septic system design:36" compared to 48" depth below the
                                   EDA to ESHWT                                                                         32
                  Discussion                                                                                            33
                  Conclusion                                                                                            37
                  References                                                                                            38





                                                                        ii











                                                     EXECUTIVE SUNQAARY

                        This study focused on assessing the design criteria for septic systems as it affects
                environmental contamination with nutrients and fecal-bome bacteria. Groundwater and surface
                water samples were collected and analyzed to determine the spatial and temporal trends for
                contaminants at 11 sites in Seabrook, where all houses with septic systems will soon be connected
                to a municipal wastewater treatment system. The groundwater flow directions at sites were
                influenced by loading, seasonal rainfall events and tides, especially the sites on River St. Flow
                direction changed significantly, making placement of study wells in contaminant plumes difficult.
                Eventual hydraulic conductivity measurements generally confirmed that study wells were in or near
                the path of groundwater flow downgradient from effluent disposal areas (EDAs) and likely in
                plumes. Fecal-borne bacteria and dissolved inorganic phosphorus, and nitrogen were detected,
                sometimes at high concentrations, in the groundwater below and close to the EDAs at the different
                sites. The concentrations of the contaminants decreased with distance from and depth below the
                EDAs. The required 48 inches separating the bottom of EDAs from the seasonal high water table,
                as required in the design of septic systems, was not met at any site. Many of the sites exhibited
                much higher groundwater levels, a condition that was conducive to enhanced groundwater
                contamination. "Me surrounding surface waters in Seabrook and Hampton Harbor generally
                exhibited elevated levels of contamination, espeically in the tidal creeks nearest to high density
                housing developments with septic systems. A combination of water and soil analysis
                demonstrated recent and more long-term contaniination of soils and groundwater downgradient
                from some of the EDAs in the direction of surface waters, suggesting that septic systems are in
                deed sources of contmainants to surface waters in coastal New Hampshire.











                                                           INTRODUC71ON

                         Nonpoint sources of pollution continue to be a major cause of surface water quality
                 degradation throughout the United States. Important nonpoint pollution sources(NPS) include:
                 pesticides and fertilizers from agricultural runoff, urban runoff, road salting, and failed septic
                 systems. It has been estimated that NPS pollutants account for 73% of the total biochemical
                 oxygen demand (BOD), 83% of the bacterial loads, and 92% of the suspended sediments in
                 waterways of the U.S. (Clark et al., 1985).
                         Nonpoint source pollutants can cause nutrient enrichments of surface waters which may
                 lead to proliferation of nuisance algae, fish kills, and shifts in microbial populations that favors the
                 growth of human pathogens. Bacterial contamination from NPSs can threaten recreational water
                 uses and harvesting of shellfish resources. In addition, suspended sediments may reduce aquatic
                 vegetation and enhance the survival of microbial pathogens by reducing the lethal effects of fight.
                         Many nonpoint sources, such as agricultural runoff, have been carefully studied and their
                 impacts to ground and surface waters have been well documented (Hilleman, 1990). The vast
                 majority of literature on-site sewage disposal systems (septic systems) has focused on groundwater
                 contamination(Canter and Knox, 1985; Cogger, 1988; Hagedorn et al., 1981; Wilhelm et al.,
                 1994). Studies of on-site sewage disposal systems have shown that they do contaminate
                 groundwater, an estimated 43% of disease outbreaks traced to untreated groundwater were caused
                 by intrusion of sewage from on-site systems (Craun, 1985). With nearly 33% of all homes in the
                 U.S. using septic systems, there is the potential for serious ground and surface water pollution.
                 There is a clear need to assess whether surface waters are impacted from groundwater
                 contaminated by on-site residential septic systems.
                         During the past two decades the State of New Hampshire has spent nearly $120 million in
                 the seacoast region for upgrading and building new wastewater treatment plants (NHDES, 1995).
                 Despite these efforts bacterial levels remain too high to open many closed shellfish beds (NHDES,
                 1994). From 1989 to 1994, most of the shellfish growing areas of New Hampshire including
                 Little Harbor, Rye Harbor, Hampton Harbor, and most of the Great Bay Estuary, had been closed.
                 Recent efforts by the state have resulted in the re-opening of some areas, including a large area of
                 Little Bay and a conditionally-approved area in Hampton Harbor.
                         Both the New Hampshire Office of State Planning and the Department of Environmental
                 Services suspect a link between water pollution in shellfish growing areas and on-site sewage
                 disposal systems. Their suspicions are well documented. A 1989 New Hampshire Nonpoint
                 Source Pollution Assessment Report cited septic systems as, a pervasive nonpoint source pollution
                 concern (NHDES, 1990). In addition, the 1994 New Hampshire Water Quality Report to
                 Congress stated that water quality problems remain with the shellfish waters of the bays and
                 estuaries along the coast due to the violations of the bacterial standard (NHDES, 1994).
                         This study focuses on the impacts of on-site residential sewage treatment (septic systems)
                 on coastal New Hampshire ground and surface waters. The town of Seabrook, N.H. provides a
                 unique opportunity to conduct such a study. Presently, all of the residences in this coastal
                 community dispose of wastewater through on-site sewage disposal systems. By mid- 1996, at
                 which time a new wastewater treatment facility will be on-line, many homes that are presently
                 using septic systems will be connected to the town sewer system. Many of these homes were
                 constructed along the shoreline or close to the Hampton-Seabrook Estuary and are probable
                 sources of bacterial and nutrient contamination.
                         Ile goal of this study is to determine if on-site sewage disposal systems are impacting
                 adjacent surface waters of the Hampton Seabrook Estuary. Our findings will have important
                 implications for the State of New Hampshire and for the general public. First, closure of shellfish
                 beds from bacterial contamination represents a direct loss of revenue to the state, $135,000 -
                 $185,000 annually, in lost shellfish licenses (NHFGD, 1991). In addition, it is estimated that
                 shellfishing activities contribute over $3 million into the local and state economy (NHEP, 1995).


                                                                    1









                         NH residents are substantially impacted since contamination of shellfish beds and overlying
                 waters presents a health hazard and lost recreational resource. Ile results of this study may help
                 the state to develop legislation to better protect our surface waters from pollution so that coastal
                 resources will be safer and more available. In addition, this study will increase our overall
                 understanding of the effects of on-site sewage disposal on ground and surface waters.

                         PREVIOUS STUDIES ON BACTERIAL AND NUTRIENT DYNAMICS IN THE
                                                   SUBSURFACE ENVIRONMENT

                 Backgmund
                         Septic systems have been used in the U.S. as a means of domestic wastewater disposal
                 since the late 1800's (Canter & Knox, 1985). Over one hundred years later, nearly 26 million on-
                 site sewage disposal systems (OSDS) exist in the U.S. with an increase of over 3 million units
                 since 1980 (Small Flows, 1996). Septic systems and cesspools contribute the largest volume of
                 wastewater discharged directly to soils overlying groundwater and are the most frequently reported
                 sources of contarnination(USEPA, 1977). It is estimated that the yearly load of wastewater to
                 groundwaters from OSDS's is approximately 1 trillion gallons (USEPA, 1986).
                         Septic systems have become commonplace in rural and subrural areas where they are an
                 economic alternative to conventional wastewater treatment facilities. On-site sewage disposal
                 systems are actually recommended for current and future development in many coastal areas
                 because of the high cost of central sewage systems and reduced availability of construction funds
                 (USEPA, 1984, as cited by Cogger et al., 19 88).
                         While conventional wastewater treatment facilities are subjected to strict treatment
                 standards, septic systems are subject to little or no monitoring once they are installed. When
                 designed, sited, and maintained properly, on-site sewage disposal systems can treat wastewater
                 efficiently for many years with little or no environmental impact In many cases, especially in
                 coastal areas, septic systems have been installed in areas where seasonally or continuously high
                 water tables and soils poorly suited to assimilate wastes are prevalent. Under these conditions
                 inadequate treatment of wastewater disposed of in the subsurface can occur with subsequent impact
                 on ground and surface waters.

                 Sel2tic System Design & Function
                         Conventional on-site sewage disposal systems consists of two major components: a septic
                 tank and a soil adsorption system or effluent disposal area (EDA). The primary function of the
                 septic tank includes the storage of liquids, solids, and floatable materials, the separation of solids
                 and liquids, and an environment for the anaerobic decomposition of both stored solids and non-
                 settleable materials (Canter and Knox, 1985, p.49).
                         Wilhelm et al. (1994) described the most important microbial mediated reactions that occur
                 in the septic tank which influence the effluent composition, these include:

                 Organic molecule hydrolysis:
                         Proteins + H20 --> Amino acids
                         Carbohydrates + H20 --> Simple sugars
                         Fats + H20 --> Fatty acids and glycerol

                 Fermentation:
                         Amino acids, simple sugars --> H2, acetate(CH300-), other acids

                 Anaerobic oxidation:
                         Fatty acids + H20 --> H2, CH300-



                                                                     2












               Ammonium release:
                       Urea[CO(NH3+)21 + H20 --> 2 NH4+ + C02
                       Amino acids + H20 --> NH4+ + Organic compounds

               Sulfate reduction:
                       S04- + 2CH20 + 2H+ --> H2S + 2CO2 + 21-120

               Methanogenesis:
                       CH300- (acetate) + H+ --> CH4 + C02                       C02 + 4 H2 --> CH4 + 2 H20

                       The average wastewater load to a septic system is approximately 45 gal/person/day. Septic
               tank wastewater influent typically contains 0.2-0.6 g/L of organic carbon and nitrogen which
               account for most of the oxygen demand of the waste water (Tchobanoglous et al., 1991). The
               anaerobic digestion within the septic tank results in a reduction of sludge volume (40%), biological
               oxygen demand (BOD) (60%), suspended solids (70%) and conversion of much of the organic
               nitrogen to ammonium (Reneau et al., 1989). In addition, most of the organic phosphorus is
               converted to orthophosphate which comprises as much as 85% of the total phosphorus in the
               effluent (Reneau and Pettry, 1976). Typical values of nutrient and microbial levels reported in
               septic tank effluent are presented in Table 1.
                       The primary function of the effluent disposal area or soil adsorption system is to purify
               septic tank effluent through biological, chemical, and physical treatment. Effluent treatment in the
               soil adsoprtion system or EDA is critically dependent on a zone of unsaturated soil above the water
               table. The unsaturated zone increases the contact between effluent and soil particles, reduces the
               hydrologic flow, and provides an aerobic environment for effluent oxidation. Under aerobic
               conditions, the following reactions occur:

               Organic matter oxidation:
               CH20 + 02 --> C02 + H20

               Nitrification:
               NH4+ + 202 -->NO3- + 2H+ + H20

               Below the saturated zone at the top of the water table, another anaerobic zone may be present,
               depending on the availability of organic compounds, the oxidation of which will cause oxidation
               demand and anaerobic conditions. Under these conditions, the N03- produced by nitrification can
               be consumed as an electron acceptor, with organic matter as electron donors, according to the
               following reaction:

               Denitrification:
               4NO3- + 5CH20 + 4H+ -->2N2 (gas)+ 5CO2 + 7H20

               Denitrification can also have nitrous oxide, N20, as a gaseous byproduct, along with N2.Thus,
               the potentially toxic N03- is consumed by microorganisms that produce benign, gaseous
               byproducts that are released harmlessly into the atmosphere.

               Potential Pollutant5
                       The concentration of nitrogen in septic tank effluent ranges from 40-80 mg/L N with 25%
               as urea and 75% as ammonium (Brown et al., 1984; Laak, 1974; Magdoff et al., 1974b). The


                                                                3









                 concentration of phosphorus in septic tank effluent ranges from 11 -31 mg/L (Bicki et al., 1984).
                         The septic tank effluent constituents which are of primary concern from an environmental
                 standpoint include nitrogen, phosphorus, and bacterial and viral pathogens. Nitrogen in the form
                 of nitrate (NO3-) may cause methemoglobinemia in small infants and has an EPA maximum
                 permissible drinking water concentration of 10 mg/L as N03% Nitrogen and phosphorus loading
                 are also of concern since they may lead to eutrophication in waters where their concentrations are
                 limited. Pathogenic bacteria and viruses are always a concern from a public health standpoint since
                 they are often the cause of waterbome diseases.

                 Nitrogen Transport
                         Brooks and Cech (1979) conducted a study in rural East Texas to evaluate anthropogenic
                 (nitrogen fertilizer on cropland, animal livestock, and septic systems) and natural (nitrate-rich
                 geologic material) sources of nitrate in well water. Fifty three wells were sampled for nitrate
                 across Houston County which has a population of 18,000 (38% use cesspools and septic tanks)
                 and area of 1200 sq. miles. A subset of 23 wells were sampled for fecal coliforms and fecal
                 streptococci to obtain further information about sources of nitrate, whether by domestic sewage or
                 animal waste, based on their ratios. They found that natural geologic materials ( background levels)
                 were not responsible for high levels of nitrate observed in wells. It was determined that animal and
                 more importantly, human sources (septic systems), were responsible for elevated nitrate levels in
                 well water.
                         Brown et al. (1984), in a 2 year study, assessed the movement of N species below
                 simulated septic lines through three soils; a Lakeland sandy loam (Typic Quartzipsamments); a
                 Norwood sandy clay (Typic Udifluvents); and a Nmer clay (Vertic Haplustolls) enclosed in
                 undisturbed lysimeters. A series of suction cup lysimeters were placed 120cm directly below and
                 parallel with the septic line to sample leachate. At the end of the study the soil below and adjacent
                 to the septic line was sampled on a grid pattern for total N and NI-14+-N. After 16 months of
                 effluent application ammonium saturation of the cation exchange sites in the sandy loam resulted in
                 downward movement of NF4+-N in the leachate water with concentrations 10 times greater than
                 background. Downward movement of NH4+-N in the soil profile was 100 cm/yr for the Lakeland
                 sandy loam, and 25 cm/yr in the Norwood sandy clay and Miller clay soils. Concentration of
                 N03--N in the sandy loam leachate exceeded 10 mg/l during the first summer when the soil was
                 well aerated but declined well below 5 mg/L with time as the soil became saturated from effluent
                 application (81.8 L/m2 bottom area per day). Conversion of ammonium to nitrate at the wetting
                 front was common during dry periods when the soil was well aerated.

                 Phosl2horus, Transport
                         Hill and Sawliney (1981) constructed an isolated soil block (deep, moderately well drained
                 fine sandy loam, associated with the Ludlow series) encased in concrete down into the underlying
                 bedrock to assess the movement of P under aerobic and anaerobic conditions. Two or three times
                 a week under both aerobic and anaerobic conditions, 565L of wastewater with a P content of
                 l2mg/L was added to soil block over a 2.5 year period. Effluent samples were collected at 45 and
                 70 cm depths through weep holes and analyzed for P content. Results showed that P moved to
                 ground water before all adsorption sites in the soil matrix were occupied, most probably along
                 preferred pathways. Sorption sites decreased over the 2.5 year study but were never completely
                 saturated, in additionjesting periods allowed for regeneration of adsorption sites and increased the
                 soils ability to adsorb P. Under anaerobic conditions it was found that P sorption decreased and
                 that desorption was also possible resulting in increased P movement.
                         Jones and Lee (1979) investigated the potential of a lakeshore septic system to transport
                 phosphorus to nearby surface waters during a 4 year study. The system served a middle-aged
                 couple who resided on the property for 9 months out of the year and was located on glacial drift


                                                                   4









               outwash consisting of stratified sandy soil deposits.Despite effluent plume migration to wells as
               close as 15m downgradient as evident by detection of conservative tracers such as Cl- there was no
               detection of P in the migrating effluent plume during the entire study.

               TranspQrt To Surface Wate
                      Lapointe et al. (1990) investigated the effects of on-site sewage disposal on groundwaters
               and nearshore surface waters in the Florida Keys. Groundwater samples were collected from
               wells adjacent to and midway between septic systems and nearby canals, from wells located on a
               wildlife refuge (control), and from the surface waters of canals. Samples were collected monthly
               during 1987 and analyzed for dissolved inorganic nitrogen, soluble reactive phosphorus,
               temperature and salinity. Significant enrichment of groundwater adjacent to on-site sewage
               disposal systems occurred with DIN enriched an average of 400-fold and phosphorus 70-fold
               compared to control groundwater samples. Nitrogen to phosphorus ratios of > 100 were typical in
               enriched goundwaters and increased with distance from OSDS as P was increasingly attenuated.
               Nutrient concentrations in groundwater were greatest in the winter, were approximately,two times
               greater than summer, with ammonium being the dominant nitrogen form. Seasonal couplings
               between on-site sewage disposal systems and surface waters were greatest during summer when
               mixing of seawater with freshwater from ODSD was maximum due to seasonally high tides. The
               surnmer wet season also contributed to lateral flow of groundwater nutrients from OSDS by
               increasing the hydraulic gradient in the direction of surface waters.
                      Morrill and Toler (1975) conducted a study on the impact of unsewered subdivisions on
               surface waters in 17 small drainage basins in several Boston suburbs. The basins were
               characterized by: housing densities which ranged from 0-900 units/mile2; underlying glacial till
               consisting of an impermeable mix. of sand and silt over bedrock; a shallow water table; and one
               fifth of the area subject to seasonal flooding. Specific conductance measurements were used to
               assess the impacts of septic systems on streams draining the basins. Chloride (CI-) was also
               measured and used to correct for the effects of highway salting. The authors found that most of
               the dissolved solids from septic systems reached the streams. In addition, they determined that the
               dissolved solids in the base flow of streams is dependent on housing density with an expected
               increase of 10-15 mg/L of dissolved solids per 100 houses per sq. mile.
                      In a study of 17 lakeshore septic systems in New York state, Chen (1988) found
               significant nutrient and fecal coliform pollution occurring in adjacent ground waters. Ratios of
               individual pollutants in sample and control wells were used to evaluate the degree of contamination
               of the groundwater. Fecal coliforms, nitrate and phosphate in excess of 9,000 MPN/100ml,
               3.7mg/L, and 0.80mg/L, respectively, were observed in wells 2m from the point of discharge.
               Evidence of fecal coliform and orthophosphate transport over long distances (10-30m) was
               observed in several wells.

               Microbial Tran5port
                      Numerous studies have focused on the fate of bacterial contaminants from subsurface
               sewage disposal/septic systems (Postma et al., 1992; Reneau et al., 1989; Chen, 1988; Cogger et
               al., 1988; Duda and Cromartie, 1982; Stewart and Reneau, 1981; Brown et al., 1979; Reneau and
               Pettry, 1975). Removal or reduction of bacterial contaminants in soils occurs by filtration,
               adsorption, sedimentation and die-off (Reneau et al., 1989). Reneau and Pettry (1975) found
               significant vertical and horizontal attenuation of fecal coliforms (FC) from septic systems
               discharging -107/rril FC in three different coastal soils. However, Chen (1988) found FC as far as
               34 m from the edge of septic systems near lakes in upper state New York. Stewart and Reneau
               (198 1) found horizontal/lateral transport of FC was greatest when the water table was at or near to
               the bottom of the drainage area for septic systems. Cogger et al., (1988) confirmed this
               observation and noted that conditions with high water tables were more anaerobic. Drains and
               ditches, which are also common in the Seabrook shoreline area, are significant conduits for FCs


                                                               5









                 from groundwater to estuarine surface waters (Duda and Cromartie, 1982). Brown et al. (1979)
                 saw little movement of FC in undisturbed soils, and found FC decreased but survived at least 19
                 days after subsurface sewage application ended. Reneau et al. (1989) reported expected significant
                 reductions in bacterial contamination within 2-3 months, although enteric bacteria can survive for
                 up to five years, especially in cool, moist environments.
                         Many studies report movement of bacterial contaminants from septic systems in the range
                 of 10- 15 m (Reneau et al., 1989; Duda and Cromartie, 1982), which are distances typical for septic
                 systems from surface waters for this study. Reneau et al. (1989) also cite a vertical distance of -1
                 meter is needed for attenuation of bacteria, which is much greater than observed for seasonal high
                 water tables at most of the proposed study sites. Thus, detection of bacteria in all groundwater
                 wells and adjacent surface waters is expected. Postma et al. (1992) conducted a study where
                 subsurface bacterial contaminants were measured before and after occupation of shoreline houses
                 and use of their septic systems, which essentially opposite of the intended study's design. They
                 detected bacteria 6 m from septic systems in Rhode Island within 2 weeks after occupation. They
                 found Clostridiwn perfringens consistently at further distances from the septic system, illustrating
                 the usefulness of this extra indicator for tracing contamination. They also used nitrate as a
                 conservative tracer and evidence of the contaminant plume, much as what was used in this study.
                         Ile connection between septic tank sources of contaminants and surface water quality has
                 also been made in numerous studies (Paul et al., 1995; Reneau et al., 1989; Duda and Cromartie,
                 1982). There is a close relationship between concentrations of bacteria in surface waters and the
                 density of unsewered residences with septic systems (Duda and Cromartie, 1982). They attributed
                 variations in this relationship to changes in ambient soil, tidal and meteorological conditions.
                 Cogger and Carlile (1984) found the greatest lateral movement of FC from septic systems was
                 associated with steep groundwater gradients, as well as previously mentioned high water table. In
                 a very recent study, Paul et al. (1995) found evidence of transport of FC, enterococci and C.
                 per
                    firingens through a shallow coastal aquifer from a sewage injection well to on-shore and near-
                 shore wells as far as 1.8 miles off shore. Thus, we may expect to see flushing of bacteria from the
                 subsurface environment into surface waters at great distances, depending on local groundwater
                 flow.
                         The fate of the targeted bacteria once released into the different estuarine environments have
                 also been studied. Escherichia coli and Enterococcusfaecalis were capable of surviving in soils for
                 at least 32 days, and traveled up to 15 meters in that time (Hagedom et al., 1978). C. perfiringens
                 is relatively non-responsive to environmental conditions, as it forms spores and exhibits little or no
                 death in at least 85 days (Davies et al., 1995). They also found that it is unaffected by predators in
                 sediments, whereas FC and enterococci were susceptible to predation, as also found by Gonzalez
                 et al. (1992). The latter two indicators could also grow under favorable conditions in sediments,
                 where C. perfiringens showed no evidence of growth. In Massachusetts, studies revealed that
                 indicator bacteria may multiply in sediments enriched with nutrients from POTWs, persist in beach
                 wrack on shorelines, and be resuspended from sediment sinks to give elevated bacterial levels in
                 water that do not accurately reflect contaminant loading (USEPA, 1991). Thus, we may expect all
                 three indicators to persist in the study areas, with FC and enterococci capable of regrowth or re-
                 entry into a culturable state.
                         Once the bacteria enter the water column, they may be more susceptible to environmental
                 conditions. Solar radiation has been shown to be a major factor in the die-off of FC (Solic and
                 Krstulovic, 1992). Shiaris et al. (1992) found fidal exposure to be a significant factor associated
                 with disappearance of FC, and probably enterococci, in sediments below a sewage outfall in
                 Massachusetts, probably as a function of solar radiation. Pommepuy et al. (1992) showed that
                 Salnwnella sp. survived longer in turbid rather than clear marine waters because the suspended
                 particles helped to protect bacterial cells from sunlight. Sorensen (1991) and Gonzalez et al.
                 (1992) showed that predation by eucaryotic: microorganisms was a very significant factor
                 controlling bacteria survival in marine waters. Thus, we may expect to see large decreases in


                                                                   6









               bacterial concentrations once they reach Hampton Harbor, which has -90% of its volume
               exchanged each tidal cycle, bringing in high salinity and clear water with high tide and exposing
               sediments and shallow waters to solar radiation at low tide.

                                                  SITE SELECTION PROCESS

                       The process by which study sites were chosen was dominated by the need to find
               knowledgeable people willing to participate. Attempts were made to find sites with properties
               characteristic of a range of conditions, and all sites had to be near to surface waters. The
               perimeters of areas in Seabrook that were close to tidal waters or freshwater tributaries were
               encircled on a map. This map was given to the Seabrook Health Officer who then contacted people
               who may be likely candidates in these areas. Seventeen different lots were identified as potential
               study sites, and thirteen Were chosen for study. Two of the sites were assessed only for
               implementation of the tidal water assessment forms by Elkind Environmental Associates, Inc.
               (1994), while the remaining eleven sites were assessed for wellwater assessment as well.
                       The eleven sites chosen for wellwater assessments are identified on Figure I as small
               circles around the dwelling at the study sites, and labeled using a 2-3 capitol letter designation, as
               described in Table 2. Each owner was interviewed in person and given time to consider
               participating before signing an access agreement form.

                                            SOILS AND SITE CHARACTERISTICS

                       The selected sites were located in two general areas: on River St. bordering Hampton
               Harbor and marshes, and in town at various locations. All selected sites were subject to a
               thorough assessment that included Order One soils surveys, location and description of septic
               system/effluent disposal area, and other important'site characteristics (Elkind Environmental
               Assoc., 1994). This preliminary study provided extremely useful information for the ensuing
               wellwater assessment studies. Generally, the soils are glacial outwash sands and gravels that
               cover bedrock that is near the surface in many areas. The areas near tidal waters have an organic
               surface layer overlying sands and gravels. Sites in town are generally on natural soils (except the
               Walton Rd. site) while the River St. sites are built on filled wetlands/tidal marshes. The soils and
               characteristics of selected study sites are summarized in Table 3, with a more detailed description
               of on-site soil properties in Table 4.
                       Most of the sites had effluent disposal areas (EDAs) located on filled or excavated soils
               (100A, 299A, 300A), which are not formally classified for soil suitability. However, soils at all
               sites have severe limitations for septic systems (groundwater contamination) because of the
               prevalence of sandy soils, which are poor filters for septic system effluent, and the potential for
               ponding at poorly drained sites (Tables 3 and 4). One site was adjacent to a freshwater marsh, six
               sites were adjacent to salt marshes, and three sites were adjacent to a beach area. Many of the
               septic systems were simply cesspools or were so old that they were not state-approved systems.
               Only two sites, KDB and RC, had state-approved systems (Table 3). All sites were in relatively
               close proximity to the adjacent marsh or beach.

                                  SEABROOK WELL INSTALLATIONS AND HYDROLOGY

               Procedures

               Installation of Small Diameter Monitoring Wells
                       Sixteen small diameter stainless steel wells were installed as part of the investigative
               program for the period 1995-1996. Seven of those wells were installed at the interface zone
               between four respective sites and the marsh/bay. The remaining nine wells were installed at the


                                                                 7









                 edge of the waterway channel immediately down-gradient of the respective sites. Ile purpose of
                 these wells was to provide sampling points at potential local groundwater discharge zones for the
                 groundwater flowing beneath the respective site EDAs. The sampling program from these new
                 wells was designed to look for nutrient and bacterial transport from the EDA directly into the marsh
                 waters, or in one case, the bay. The wells were made from stainless steel, since it was suspected
                 the black iron pipe used for the original wells was susceptible to corrosion. The saline water of the
                 tidal marsh areas would be more corrosive to the well pipes than the freshwater areas. Corrosion
                 can have the effect of closing off the well screen openings or "slots".
                                Each well consisted of 1/2-in nominal diameter 304 stainless steel pipe. The pipe
                 came in 10-ft sections. The well sections had a 0.5-foot section of blank pipe at the well bottom to
                 act as sump for soil particles. Above the sump was a one-foot length of screen, which consisted of
                 four rows of two-inch long slots, 0.01 in. wide, cut into opposite sides of the pipe with a laser.
                 The slots were positioned 1/4-inch apart along the one -foot length and aligned such that the gaps
                 were offset between the two rows to maintain strength. The remaining length of the 10-ft pipe was
                 blank riser. Prior to installation, a stainless steel drive point was inserted into the sump end of the
                 well, held in place by a rubber o-ring. - No wells were installed of length greater than 10 ft.
                        The wells were installed using a slide hammer. The well was positioned using a 10-ft step
                 ladder, and the slide hammer was slid over the well. The well was driven using a lift and drop
                 action of the slide hammer. The well was installed so the screen was at or less than 3 ft below the
                 water table. The water level was checked using an electric sounder. The wells were developed
                 using a 1/2-in. OD. polyethylene tube with a Dehin check valve on the bottom to create an inertial
                 bailer. Once developed the wells were allowed to come to equilibrium, and the depth to water was
                 checked to make sure the well was installed to a sufficient depth. The wells were finished by
                 inserting a plastic cap. No wells were flush mounted during this phase of the installation.
                        Wells were installed at four sites. A summary of the installation statistics is presented in
                 Table 5. Two wells were installed in the tidal channel at the Eastman Home site on River Street.
                 No site/marsh interface wells were installed here, as two of the existing wells already serve that
                 purpose, REH-2 and 3. The new wells were designated REMC and 8C. Their locations are
                 shown in Figure 2. In addition, the original carbon steel well at REH-3 was pulled out for
                 hydraulic testing of corrosion in the lab, and replaced with a stainless steel well. This new well is
                 designated as REH-3SS in Table 5. The installation was made 3/14/96, so water levels after this
                 date refer to REH-3SS.
                        Five wells were installed behind the Pike and Camacho sites. Three of the wells were
                 installed in the edge of the low-tide bay. Two of those wells were within one foot of each other, at
                 different heights. The purpose here was to measure the vertical hydraulic gradient. The third well
                 in the bay was installed along an extension of the border of the Camacho and Pike sites. The
                 fourth well was installed on the bank during low tide, down-gradient of the Hopkinson and Pike
                 sites. These wells, shown on Figure 3, were designated RP-613, 7B, 8B, and 9B respectively.
                        The third site with marsh and channel wells installed was the Hubert site on Walton Road.
                 The locations are shown in Figure 4. Two wells were placed at the backyard/marsh interface
                 down-gradient of the EDA and existing wells, and two wells were installed at a distance in the
                 nearest channel to the site. These wells were also located in a down-gradient direction from the
                 EDA. The designations of the two marsh wells was WRH-7M and 8M, and the two channel wells
                 were labeled WRH-9C and 10C.
                        The final site was the Bakutus site on Kimberly Drive. Six wells were installed in a radial
                 pattern from the two EDAs. Two of those wells were installed in separate tidal channels,
                 respectively. ne other four were installed at the interface of the site and the marsh, or in some
                 cases, just back from the interface. This site presented the difficulty of having wells installed
                 which were dry. Several wells were relocated in order to be able to obtain a water sample. The
                 marsh interface wells shown on Figure 5 were denoted KDB- 10M, I 1M, 12M, and 15M. The
                 two channel wells are designated KDB-13M and 14M. Note that only channel well KDB-14C was


                                                                 8









                able to be shown on Figure 5.

                Results

                Tidal Influence of Water Levels and Groundwater Flow
                        Ile study performed during the period 1994-1995 identified where groundwater flow
                directions at sites close to the tidal marsh (or the bay) were significantly different in the summer of
                1995 from the spring of the same year, An example can be seen in Figures 6 and 7. Figure 6
                shows the groundwater directions at the River Street Eastman Home site for measurement taken on
                March 13, 1995 at low tide. Figure 7 shows the groundwater flow directions estimated from
                measurements taken on May 31, 1995 during high tide. Similar fluctuations in groundwater flow
                directions were noted from the groundwater level data obtained during the regular sampling
                program at other River Street sites. These sites included the Hopkinson, Pike, and Eastman Trailer
                properties. A slight shift in groundwater direction was also noted at the Hubert site and, to a lesser
                degree, at the Locke site.
                        In order to obtain a better understanding of the tidal influence on groundwater flow at each
                of these sites, a long term monitoring program was instituted. This program was instituted by
                installing pressure transducers in wells which were used to identify groundwater flow directions.
                The transducers were connected either to a lap-top computer, or CR-10 data loggers. In either
                case, the groundwater levels were measured on 10 minute time intervals over a period of several
                days. In this way, the variations in the depth of water above each of the undisturbed transducers
                would be monitored for at least four or five tidal cycles. The monitoring was typically done during
                periods including, or close to, a full or a new moon to take advantage of the larger tidal
                fluctuations. Long term monitoring was performed on River Street at the Eastman Home site, and
                also at the combined sites of Hopkinson, Pike, and Beckman. Separate long-term monitoring was
                performed at the Hubert site on Walton Road, and at the Bakutus site on Kimberly drive.
                        The results of the long-term monitoring at the Eastman Home site are shown in Figure 8.
                One transducer at this site was placed in the tidal channel at a point closest to the home EDA. Five
                other transducers were placed in all the site wells except the deep well. The long term monitoring
                lasted for 4.9 days. The groundwater flow directions for the high tide periods are shown in Figure
                9. In this case the groundwater flow is toward the EDA and REH- I from the marsh channels.
                        Figure 8 shows that there is a threshold for some of the wells; when tidal levels are below
                the threshold value, these wells show no reaction or influence. This can be seen in the early time
                plots for wells REH-1, REH-2, REH-4, and REH-5. Well REH-3 shows a consistent tidal
                influence. The levels for Well REH-4, located in-between the EDA and the grey-water outlet,
                shows indication of tidal influence at higher tides, but also reflects dosing of the EDA. This
                conclusion is drawn since the reaction of the well at 2250 minutes is not repeated for the tides at
                3800 minutes or 4500 minutes, even though those tide levels were higher than the high tide level at
                2250 minutes. Well REH- 1, the upgradient well, shows a similar reaction. When the high tide
                level becomes greater than elevation 97 feet, all the wells on site experience a change in piezometric:
                level. It should be noted that at the highest tides, the groundwater flow directions completely
                reverse, with the flow going from the tidal channel towards the upgradient well, REH-1. An
                example of this behavior is shown in Figure 10, for the elevations at 0641 11/22/95. The steepest
                gradient is from the direction of well REH-2 to REH-1. This site, therefore, experiences a series
                of backwash effects roughly twice a month due to the fides. Furthermore, looking back at Figure 9
                for the March 13, 1995 water levels, it may be concluded that this plot must be for a time when the
                tide level is below the reaction threshold of some of the wells, since the flow direction is not
                towards the EDA.
                        Further down River Street, at the combined sites of Hopkinson, Pike, and Beckman, the
                tidal influences can be seen in four of the wells monitored, shown in Figure 11. This site was
                monitored in June, 1996, just before a new moon. Five transducers were connected to two


                                                                   9









                 Campbell Scientific CR-10 data loggers that were time synchronized. The transducers were placed
                 in key wells for determining the groundwater flow directions in the vicinity of the four adjacent
                 sites (Hopkinson, Pike, Camacho, and Beckman). These included an upgradient well, RB-3, and
                 two down-gradient wells, RH-4 and RP-3. RH-2 and RP-2 represented intermediate wells. The
                 largest fluctuations were seen in well RH-4, closest to the bay. T'he two wells monitored on the
                 Pike site did not show significant tidal influences, although there were some asynchronous
                 fluctuations with the tides. The highest peak shown for well RH-4 corresponded to a new moon,
                 therefore any threshold effects should have been seen, consequently it is concluded the wells on
                 the Pike site are not significantly influenced by the tides. There was no indication of the wells near
                 the Beckman house having any tidal reaction. In fact, the upgradient well showed evidence of a
                 very gentle groundwater level decline. Well RH-2 showed a more pronounced asynchronous
                 reaction to the tides than the Pike site wells, even though RH-2 is close to the same distance from
                 the bay as well RP-2. The fact that a more pronounced reaction was seen is indicative of an area of
                 higher hydraulic conductivity. This conclusion is also consistent with the hypothesis drawn by
                 examining the groundwater flow directions. The implications of Figure 11 are that there is a
                 backwashing effect going on at the Hopkinson site depending on the tides. There was no
                 indication of threshold tidal depths as seen for some of the Eastman home wells.
                         The third site monitored was the Hubert site. This site was chosen because the monitoring
                 well groundwater level data suggested a distinct groundwater shift in the flow directions between
                 the spring 1995 and summer 1995 water level data as indicated by Figures 12 and 13. The site
                 was instrumented in November 10, 1995 with three pressure transducers. This was three days
                 after the full moon. The wells instrumented created a triangle from which the flow directions could
                 be discerned. These included two up-gradient wells, WRH- I and WRH-2, and the farthest down-
                 gradient well, WRH-6. The monitoring results are shown in Figure 14. This figure shows a
                 reaction in all wells due to a rainfall event, but there is no evidence of any tidal influence in any of
                 the wells. It may well be that the shift seen between Figures 12 and 13 are due to measured effects
                 of dosing of the EDA at the time of measurement. There are no records of when the residents use
                 their systerxi. The fluctuations of the upgradient wells indicates that the relative piezometric heights
                 changes during such events, which would be sufficient to cause the shift in groundwater directions
                 seen between Figures 12 and 13. The shift, therefore, is not caused by tidal influences.
                         The last site instrumented for long term monitoring was the Bakutus site on Kimberly
                 Drive. This site has two adjacent EDAs, and was instrumented with five pressure transducers in
                 wells that were key to estimating groundwater directions. The wells in which transducers were
                 installed include: up-gradient well KDB-1; a well through the EDA, KDB-4; a well lateral to the
                 EDA, KDB-6; and two down-gradient wells, KDB-5 and KDB-8. The transducers were hooked
                 up to a Campbell Scientific CR- 10 data logger on March 25, and logged for two days. The
                 logging occurred during the first quarter of the moon. The time record of the height of
                 groundwater above the transducers is shown in Figure 15. There were no indications of any
                 regular tidal fluctuations. The only significant fluctuation was in well KDB-4, which is through
                 the EDA. The well recorded a diurnal pattern, which is believed to reflect the household septic
                 usage. Groundwater levels in KDB-4 increase in early evening hours, and decrease during the
                 morning hours. This pattern did not appear to affect any of the other wells monitored, wells KDB-
                 6 and KDB-8 being the closest. There was no indication that anything other than a local direction
                 alteration would occur around the wells in the EDAs.


                 Hydraulic Conductivity Testing of Seabrook Wells
                         Slug tests provide a means of evaluating the hydraulic conductivity of a formation in the
                 immediate vicinity of the well. The tests are performed by creating an instantaneous deflection in
                 the water level in the well bore, and monitoring the aquifer response as the water recovers to its
                 original static level.


                                                                    10









                       Slug tests were performed in the majority of the microwells installed at Seabrook in the
               winter of 1995 and spring of 1996. All tests were performed using pressure transducers and lap-
               top computers to monitor the piezometric response in the microwells during the test. The response
               times were measured in terms of seconds; typical response durations were 15-30 seconds, but
               some wells had a response duration up to 10 minutes
                       The values of hydraulic conductivity obtained from these tests are point values representing
               the aquifer properties in the near vicinity of each well. In formations with high values of hydraulic
               conductivity, the inertial effects of the aquifer can be significant, causing oscillatory responses of
               the piezometric level in the well. This phenomenon was not observed in the shallow wells at
               Seabrook.

                       Procedure
                       The slug testing program was performed by using a mechanical slug to do a falling head
               slug test on the microwells. The mechanical slug tests were performed by attaching a metal bar to
               the end of a Druck PDCR-35/D miniature submersible pressure transducer by a fine brass wire,
               and essentially dropping the transducer and slug into the well to a pre-deten-nined depth below the
               water table. The metal rod displaced the water in the well bore, instantaneously raising the level.
               The subsequent recovery of the water level in the well bore to the static level was monitored at
               regular intervals with the pressure transducer and a lap-top computer. This test was called a falling
               head slug test. The data were reduced according to the Hvorslev Method (Hvorslev, 195 1) to
               estimate the hydraulic conductivity in the vicinity of the well. Normally a falling head test is
               coupled with a rising head test in the same well, and the resulting two values of hydraulic
               conductivity are averaged. Ile small diameter of the microwells precluded removal of the slug
               past the pressure transducer, so a rising head slug test could not be performed. The hydraulic
               conductivity results for the mechanical slug tests represent values only for falling head slug tests.
                       In several wells, the slugs had difficulty passing through the well bore to the water surface.
               In such instances, a metal rod of smaller diameter was tried. If still unsuccessful, a rod of shorter
               length was used. The metal rods that were used for most of the tests were 3 ft. long and either
               7/16 inch or 3/8 inch diameter galvanized steel. There were a few wells that required the use of a 2
               ft long rod, and in several instances, the well would only allow a 1 ft 7/16-in diameter rod to pass.
               More frequently, there was insufficient water in the well to use the larger length slugs, and the 12-
               inch slug was used. This was commonly the case at the Bakutus site. The 7/16 inch rods
               theoretically produce a 0.77-ft rise in the water level of the well per foot of rod submerged.
               Similarly, the 3/8 inch rods produce a 0.56-ft rise in the water level per foot of submerged rod.
               The response of the aquifer was so rapid, however, that the full theoretical displacement depth was
               rarely measured.
                       There were two sites where wells have been bent and straightened enough for sampling,
               but even a one foot slug would not pass. These sites included the Beckman site and the Eastman
               Trailer site (RET), both on River Street. While not every well was bent at the Eastman Trailer site,
               access proved to be a problem during the testing program, and consequently this site was not
               tested. All the wells on the Beckman site refused passage of the 1 -foot slug.
                       The pressure transducers were directly connected to an analog-to-digital signal converter by
               Remote Measurement Systems, which in turn was coupled to a lap-top computer. Software
               written in Basic queried the A/D converter at a rate of 8 to 9 times per second for pressure
               readings. The majority of the slug tests performed had a duration of 10 seconds or less. The
               software converted pressure readings to feet of water above the transducer. The recorded height of
               the water displacement was in part a function of the speed at which the slug could be dropped to a
               stable position.
                       Pressure slug tests have been devised to test wells in which the mechanical slug would not
               pass down to the water surface. In this case a large tee fitting was connected to the well through
               which the cable of the pressure transducer passed. Rubber o-rings provided a seal around the


                                                                  11









                  cable at a fitting on the top branch of the tee. An air source was connected to a fitting at the side
                  branch of the tee. The assembly was connected to microwells having an above ground completion
                  (stick-up) by force-fitting a 0.75-inch vinyl tubing over the 0.620-inch microwell pipe and
                  securing it with a radiator clamp. The tubing was connected to the remaining branch of the tee. All
                  connections had to be air-tight.
                          The test is performed by applying a known air pressure to the well, and monitoring the
                  response with the pressure transducer. Once the level in the well had stabilized, the pressure was
                  suddenly released. The application of pressure depressed the water level in the well below the
                  piezometric level of the formation. Releasing the pressure rapidly was similar to the removal of a
                  mechanical slug or volume of water. The same procedure can be used with a vacuum to raise the
                  water level in the well. Once released, the decline in the water level was similar to the falling head
                  test of the mechanical slug test.
                          The pressure slug tests could only be performed in those wells in which the wen screen
                  was completed below the water table. Wells that were screened across the water table are incapable
                  of holding either a pressure or a vacuum. In the case of the Seabrook wells, all the shallow wells
                  are screened across the water table, and consequently will not hold pressure. Many of the deep
                  wells have a joint between well sections where blank pipe was added to the original 10 or I I ft
                  well. This joint was typically above the water table, and was not air tight. Consequently, the deep
                  wells were only tested using a falling head mechanical slug test.

                          Analysis
                          The test data was analyzed according the Hvorslev method. The height of the water
                  column above the transducer was normalized with respect to the maximum observed deflection,
                  and the normalized drawdown was plotted on a log scale of a semi-log plot for the respective
                  elapsed time value on the arithmetic scale. An example plot of a slug test on well RH-4 is shown
                  in Figure 16. The time value (TO) when the straight-line data plot had a normalized drawdown
                  value of 0.37 is used in the following equation to compute the hydraulic conductivity:

                                                  0 ln(L/R)
                                          K          2LTo                                                  (1)

                  where:
                          r               radius of well screen in ft,
                          R               radius of the well bore in ft,
                          L               length of well screen in ft,
                          TO              Intercept time in seconds.

                          A few of the wells test data were analyzed using the computer software program ADEPT
                  (Mathsoft, Inc., 1994) which plotted the data, and fit a straight line to the plot for the Hvorslev
                  method. The program determined the intercept of the fitted line with the drawdown value of 0.37,
                  and provided a calculated hydraulic conductivity. The majority of the test data was analyzed using
                  a spread sheet and data plots.

                          Results
                          A summary of the results of all the wells tested in the slug test program at Seabrook is
                  presented in Table 6. Conditions which prevented the test from successful completion or analysis
                  are noted in the comment column. The table provides the geometric mean of hydraulic conductivity
                  of all the tests performed on a well in terms of both ft/day and cm/s. In all, 145 successful tests
                  were analyzed. The results for all the sites were very similar, all in the I X 10-6 to 5 x 104 cm/S
                  range. The only exception was REH-1 on the Eastman Home site, which had a mean of 5.4 x 10-3
                  cm/s. This well represented a local zone of high conductivity. Nearby, the well couplet REH-4

                                                                     12









                and REH-6 had a slightly lower conductivity. The wells that were closer to the channel had
                hydraulic conductivities that were an order of magnitude less than REH-4. This is supported by
                the piezometric contours shown in Figure 10, where there is greater distance between the
                piezometric contours in the vicinity of wells REH- I and 4, and the contour lines become closer
                together toward the channel indicating more resistance to flow, evidenced by the reduced hydraulic
                conductivities.
                        Both the Locke and Hubert sites had consistent results of the hydraulic conductivity testing.
                Values hovered in the range of I I x 10-5 to 7.8 x 10-5 cnx/s for the Locke site, and I X 10-5 to 4.3
                x 10-4 cm/s at the Hubert site. On site, the well through the Hubert EDA had the highest hydraulic
                conductivity, with 1.4 x 10-4 cm/s. 'Me soils in the marsh channel behind the Hubert home have
                similar hydraulic conductivities, on the order of 2.8 to 4.3 x 10-4 cm/s. The deep well had a
                hydraulic conductivity similar to the other site wells, showing no change in conductivity with
                depth.
                        On the combined River Street sites, including the Pike, Hopkinson, and Camacho sites, the
                hydraulic conductivities were consistent, in the 1 to 4.8 x 10-5 cm/s range. Two exceptions should
                be noted. Well RP-2 has a lower value for hydraulic conductivity, on the order of 4.7 x 10-6 Cm/s.
                This well is close to River Street, and is also in the area at which the groundwater contours start
                bending around in Figure 17. The wells closest to River Street on the Hopkinson site, RH- 1 and
                2, have hydraulic conductivities an order of magnitude higher, suggesting there may be a less
                conductive zone or "barrier" between the Camacho and Pike houses. This is also supported by the
                piezometric data. None of the bay wells were tested.
                        Testing at the Bakutus site on Kimberly Drive was difficult, due to the limited water
                column in many of the wells. A one-foot slug was used for most of the testing. In some cases,
                this was dictated by what would pass down the well. Three wells had marginal water columns in
                the well for testing, KDB-4, 7, and 8. No successful tests were able to be done on the last two
                wells. In addition, well IMB-1 1 provided insufficient response to analyze. The wells that were
                successfully tested were in the same range as other sites. One of the wells successfully tested
                along the site/marsh interface had the highest hydraulic conductivity, 2 x 10-3 Cm/s. The next
                highest zone of conductivity was in the vicinity of KDB-2, upgradient near the home. The
                southern house site and EDA had slightly less permeable soils, witnessed by KDB- 1 at 6.6 x 10-6
                cnx/s, and KDB-3 at 8.9 x 10-5 cm/s. Down-gradient, KDB-5 had 1.4 x 10-5 Cm/s, in the same
                range, but lower than the northern portion of the site. The other wells slightly higher hydraulic
                conductivities.
                        The Cronin site on Forest Drive was slightly less conductive than most other sites. The
                highest hydraulic conductivity measured on this site was 1.4 x 10-5 cm/s. The other wells had
                conductivities of approximately 6.5 x 1&5 CffX/S.

                Groundwater Flow Characteristics
                        Groundwater flow characteristics of direction and velocity were evaluated from the test data
                presented above. In order to estimate the flow velocity, first the groundwater piezometric: contours
                were drawn on a map of the site. The hydraulic gradient was measured from the piezometric
                contours in the primary directions of flow. The measured gradients were multiplied by the
                hydraulic conductivity for the area where the gradient was measured. The resulting value
                represents the estimated groundwater flow velocity. A summary of the groundwater elevation data
                collected to date is presented in Table 7. 'Me hydraulic conductivity values were taken from the
                slug testing results in Table 6.
                        The June 6, 1996 groundwater contours for the River Street sites including Beckman,
                Hopkinson, Pike, and Camacho are shown in Figure 17. Groundwater flow is generally from the
                marsh to the bay. There is a flattening out of the contours in the area between the Hopkinson and
                Pike homes. This bending could be a result of an area of low hydraulic conductivity. The


                                                                   13









                hydraulic conductivities of Table 6 show the conductivity is lowest at RP-2. This tidal influence
                will change these contours slightly, making the flow bend less during periods of low tide. T'he
                flow directions from the Hopkinson septic system are directly toward the bay wells, although other
                data suggest that flow direction changes (see below). Flow from the Pike system appears to be in
                the direction of the Camacho system. Flow velocities from the Hopkinson system are estimated to
                be 8.2 x 10-7 Cm/S (0.0023 ft/day), and from the Beckman site where the gradient is larger, the
                estimated velocities are 3.4 x 10-7 CM/S (0.0010 ft/day).
                        Typical contours for the Eastman site at high tide are shown in Figure 9. Groundwater
                flow is in the direction of well REH-4 from the channel. Using the primary flow directions noted
                in Figure 9, the estimated groundwater velocity is 3.75 x 10-7 Cm/S (0.00 11 ft/day). The
                groundwater velocity is greater during low tide (Figure 10), when the direction is toward the
                channel from the septic system. Estimated low tide velocities are 2 x 10-7 CnVs (0.059 ft/day). The
                data from Table 7 indicates that in early 1995, the well couplet (REH-4 and REH-6) indicated an
                upward vertical gradient. This changed over the course of the year, and since May, 1995, the
                gradient has been measured as a downward gradient, tending to drive groundwater originating at
                the site deeper in the subsurface.
                        The groundwater flow directions for the Hubert site are indicated on Figure 18. These
                contours are indicative of the groundwater flow direction shown for the June 29, 1995 data in
                Figure 13. The primary flow direction is from the EDA toward WRH-8M. The estimated
                groundwater velocity at this site is 2.3 x 10-6 Cm/S (0.007 ft/day). As noted above in the
                discussion of the long-term monitoring, the relative piezometric levels changed between WRH- 1
                and 2, which could skew the primary flow direction towards WRH-7M.
                        The primary flow direction at the Locke site on Causeway Street is from the EDA to a point
                just south of well CSL-6, as shown in Figure 19. The estimated velocity is 1.25 x 10-6 Cnx/S
                (0.0035 ft/day). Long term monitoring was not done on this site, however based on the findings
                at the Hubert site, no tidal influences would be expected.
                        The groundwater contours for the Bakutus site on Kimberly Drive for the June 6, 1996
                data are depicted in Figure 20. The addition of the marsh wells has refined the direction of
                groundwater flow from the immediate site. The new wells indicate that the majority of the flow
                that leaves the site eventually flows toward the northern channel. There is still a component that
                flows to the east, but it appears that flow initially heading northeast fi-orn the EDAs will eventually
                turn to the north. This may be due to the slightly higher hydraulic conductivities found at the
                northern well locations. Estimated velocities on this site are I x 10-6 Cm/s (0.0028 ft/day) to the
                east, and 1.3 x 10-6 cnx/s (0.00338 ft/day) to the north.
                        The contours at the Cronin site on Forest Drive are shown in Figure 21. The contours are
                not well refined with only three wells surrounding the EDA, but it appears the primary direction for
                June 6, 1996 was to the west from the EDA. The estimated velocity is 1.6 x 10-7 cm/s (0.0005
                ft/day).

                Analysis of the Use of Soil Mottling as the Predictor of Estimated Seasonal High Water Table
                (ESHWT)
                        One of the objectives of this project was to compare estimates of ESHWT to the actual high
                ground water table (HW`1) value as measured in wells. The first step was assessing the ESHWT
                for the existing systems. This was performed and completed by Fred Elkind and Dave Allain and
                reported in, "Tidal Water Assessment, Implementation of Tidal Water Site Assessment Forms For
                Selected Seabrook Properties", November 1994. The selected subsurface disposal systems were
                investigated, in October, 1994, by hand-auguring both upgradient and downgradient of the effluent
                disposal areas. ESHWT's were interpreted by redoximorphic features (soil mottling) or evidence
                of wetness (water in the auger hole). All of the ESHWT data was reported as depth (in inches)
                below ground surface (bgs).


                                                                 14









                        Subsequent to the ESHWT investigation, wells were then installed at these same sites. T'he
                installation of wells was initiated in November of 1994 and carried over to 1995. The wells used
                for this study were steel or stainless steel half-inch diameter (nominal) wells. The screen for these
                wells was vertically slotted sections of the steel/stainless steel pipe. The laser-cut slots were two
                inches long by 0.01 inches wide, and two rows of slots on opposite sides of the pipe were cut.
                The screen lengths varied from 5 to 10 ft. The wells were installed by using a vibratory hammer to
                drive them into the ground and to the desired final depth. Wells were then developed by using an
                inertial bailer to purge water until the water appeared relatively free of sediments. An inertial bailer
                is 3/8 inch polyethylene tubing fitted with a Delrin (TM) foot valve. The bailer is thrust into and
                out of the well and the foot valve maintains flow out of the tubing at the top of the well. Well
                water levels were measure with an electrical sounder and referenced to the top of the well. The
                measurement of the distance of the top of the well to the ground surface then allowed the water
                level readings to be referenced to the top of the well. The measurement of the distance of the well
                to the ground surface then allowed the water level readings to be referenced to a depth below
                ground surface (bgs) reading as were the ESHWT measurements.
                        Since well water level data was not measured continuously, it cannot be asserted that the
                absolute high water table (HWT) was measured in 1995 and 1996. However, the readings that
                were taken can indicate the validity of the use of the ESHWT in that if the ESHWT is a good
                indicator of HWT, then all measure data should be at or physically lower than the ESHWT. If
                measured water levels exist higher than the ESHWT, then basing septic system designs on
                ESWHT may be inappropriate. The data collected for the ESHWT were plotted against the HWT
                measured for 1995 and 1996, for each system in Figure 22. The following are some
                interpretations of this data.
                        Although contrary to the climatology, 1995 data plots appear to have been wetter than
                1996. The data shows that the 1995 HWT was closer to the land surface than 1996 HWT.
                Climatologically, 1995 was a very dry year whereas 1996 had record amounts of snowfall and a
                wet spring. However, more data was taken in 1995 than 1996 and therefore it is quite likely that
                the 1996 data set does not represent the actual HWT for that year, rather the water table for the sole
                day of observations. Generally the HWT for 1995 occurred in the winter 0:)ecember 1994 to
                March 1995). For 1996, only June data was taken. Therefore, no conclusion about wetter versus
                drier year should be made from the measured values of HWT from 1995 or 1996 since water levels
                were not taken on a scheduled frequency sufficient to clearly delineate HWT. Another
                complicating factor is that at some sites the water table is affected by the tide.
                        The line of perfect agreement (solid line) displays how hypothetically the ESHV*rr would
                plot against the annual HWT in Figure 22. Since the annual HWT is variable, it is doubtful from
                the outset that all data would fit on this line. However, if the ESHWT were a conservative
                predictor of HWT, then all data would plot above the line. Six of the 10 systems studied displayed
                measured water levels shallower than the ESHWT (data plotted below the line of perfect
                agreement). Obviously the absolute HWT for these same systems would also plot below this line,
                and below these data points. This means that the ESHWT is not a conservative predictor of HWT.
                        The intent of a subsurface disposal system is to provide some treatment of wastewater
                before it enters ground water. This treatment is to occur in the unsaturated zone below the leach
                field lines. Ile more unsaturated zone there is, the more treatment that occurs. It is generally
                accepted that three feet, or more typically four feet or more, of unsaturated zone should separate the
                leach field lines and the water table. ESHWT is used in the design of the vertical location of the
                leachfield lines. If the ESHWT is not conservative in its estimate of the HWT, then less saturated
                zone exists than presumed during the HWT period of the year, and inadequate septic tank effluent
                treatment probably occurs. It should be noted that in reality, immediately above the water table is
                located another zone of saturation known as the capillary fringe. This zone is under negative
                pressure and is therefore not represented in the well measurements of the HWT. The zone can be
                on the order of one inch to a little over one foot in the soils suitable for leach field systems. The


                                                                   15








                capillary fringe is usually not included in leach field design considerations and therefore will not be
                included in the discussion here. However the point being that if a separation distance between
                HWT and the leach field system is used for design, it must be recognized that this is not the
                distance of unsaturated soil. The actual value is less than this due to the capillary fringe. This is
                why a good, conservative estimator of the HWT is needed in the design of septic systems.
                        As it would be impractical to install monitoring wells and collect data a few years in
                advance of constructing every leach field, the ESHWT will most likely continue to be a critical
                design parameter and in light of the data collected for the present study, it is recommended that
                ESHWT values be reduced by two feet. This recommendation is depicted in the data plot as the
                line that envelops the mottling data (dashed line). It can be seen that all data of the present study
                lies above this envelope line. this means that the ESHW7 is by itself not an accurate prediction of
                how high the water table comes every year, however a simple correction to yield a better prediction
                of the HWT (without wells and well measurements) is to subtract two feet from the reported value
                of the ESHWT. The resulting modified ESHWT (mESHWT) is better and more conservative
                predictor of the HWT.

                                          WATER QUALITY AND CONTAMINANTS

                        Effluent from septic tanks contains high levels of phosphorus, nitrogen and fecal-borne
                bacteria. Ile effluent characteristics can vary widely, depending on many variables, and 'typical'
                contaminant concentrations, based on numerous previous studies, are presented in Table 1. The
                nitrogen discharged from septic tanks is in the forms of organic nitrogen and ammonium, with no
                nitrate. Much of the phosphorus is orthophosphate. Thus, detection of nitrate in groundwater is
                indicative of transformation of the ammonium to nitrate under aerobic (i.e., unsaturated)
                conditions. The values in Table 1 can serve as a guide for assessing the effectiveness of study
                systems and potential problem areas.

                Procedures

                Well Sampling
                        Wells were sampled for bacterial and nutrient contaminants. During each sampling, the
                weather and tide were recorded, and it was noted if precipitation had occurred in the last 24 hours.
                Before sampling the wells, the depth to the water table from the TOC was measured for each well.
                Depth to water was measured to the nearest hundredth of a foot, using the Slope Indicator Co.
                water level indicator (Model 51453), and recorded.
                        The wells were prepared for sampling by inserting bailers (sterile polyethylene tubing 1/2"
                0. D.), down into the well to the approximate depth of the water table. The bailer was connected
                to a portable Masterflex peristaltic pump (model H-07570- 10) using a sterile HDPE fitting and
                sterile Masterflex silicone peroxide cured tubing.
                        Three well volumes were pumped from each well before collection of samples began. As
                the well was pumped, the water level in the well often fell as indicated by the presence of air
                bubbles in the bailer tubing. Under these conditions the bailer was inserted deeper into the well, as
                the water level fell, so that well water was continuously withdrawn. As often happened, the bailer
                reached the well sump before three well volumes could be collected. When this occurred the bailer
                was moved vigorously in an up and down fashion to facilitate the removal of any sediments that
                may have collected at the bottom of the well. Wells in which three well volumes could not be
                evacuated prior to reaching the sump were considered to be sufficiently evacuated for sampling.
                        Once three well volumes were evacuated or the sump was reached, the well was allowed to
                recharge for several minutes before samples were collected. Three IL Nalgene sampling bottles
                were filled, one acid-washed bottle for nutrient analysis and two sterile bottles for microbiological
                analysis. Extreme care was taken to prevent contamination of sample bottles and caps while


                                                                16









                 sampling was taking place. Wells which did not produce sufficient quantities of water to fill all
                 three sample bottles were sampled repeatedly until an adequate amount of sample was obtained to
                 perform analysis. The samples were labeled, stored on ice in a cooler, and transported back to
                 Jackson Estuarine Lab for analysis within six hours of collection. Well samples were analyzed for
                 ammonium, nitrate, phosphate, pH, TSS, % organics, salinity, fecal coliforms, Escherichia coli,
                 enterococci, and Clostridium perfringens.

                 Surface Water Sampling
                         Surface water samples were collected at low tide both up stream and down stream from
                 inland and coastal sites and at various locations throughout the study area (Figure 23). Three 1L
                 Nalgene sampling bottles were filled, one acid-washed bottle for nutrient analysis and two sterile
                 bottles for microbial analysis. Microbial surface water samples were collected manually according
                 to the technique described in Standard Methods for the Examination of Water and Wastewater
                 (Standard Methods, 18th ed., 1992). Ambient water temperature was recorded using a hand held
                 thermometer. Samples were stored on ice in a cooler and transported back to the Jackson Estuarine
                 Laboratory (JEL) for analysis within 6 hours. Surface water samples were analyzed for
                 ammonium, nitrate, phosphate, pH, salinity, fecal coliforms, E. coli, enterococci, and C.
                 perfringens.

                 Lysimeter Installation
                         Soilmoisture Equipment Corp.'s pressure-vacuum soil water samplers (Model 1920) were
                 installed under the EDA's at 5 sites. A hole, approximately 0.5 feet in diameter, was excavated
                 manually with a post-hole digger down through the EDA. Ile hole was dug until the bottom of
                 the EDA (gravel/soil interface) was reached. A 3-inch diameter hand held soil auger was then used
                 to bore an additional hole, 0.5 -1.0 feet below the bottom of the EDA, in which the lysimeter
                 would be placed.
                         A small quantity of crushed 200 mesh silica-sand was poured into the 3-inch bore-hole and
                 the lysimeter was inserted. Additional 200 mesh silica-sand was poured into the bore hole so that
                 the sand was at least six inches above the ceramic cup of the soil water sampler. The 3-inch bore
                 hole was back-filled with native soil until the soil level inside the hole was just above the top of soil
                 water sampler.
                          A 4-inch diameter PVC pipe was inserted down the inside of the 6-inch hole and cut flush
                 with the ground surface so that the sampling tubes could be accessed. Native soil was back-filled
                 around the outside of the PVC pipe up to the ground surface. A small hand held vacuum pump
                 was used to place a vacuum pressure of 15-20 inches of mercury on the soil water sampler.. The
                 PVC pipe was covered with a removable PVC cap which was flush with the ground surface.

                 Lysimeter Sampling
                         The lysimeters were sampled by removing the access cover and extracting the discharge
                 and pressure vacuum tubes. The clamps used to seal off the ends of both tubes were then
                 removed. The discharge access tube was inserted through a rubber stopper which was attached to
                 the top of an acid-washed I L filter flask. A hand held vacuum pump was then attached to the
                 flask side arm and a vacuum was applied causing the contents of the lysimeter to collect in the
                 flask. The sample was transferred to a 1L acid-washed Nalgene sampling bottle for analysis.
                         Finally, a vacuum pressure (15-20" of mercury) was reapplied to the lysimeter by clamping
                 off the discharge access tube and using the hand held pump to apply the vacuum via the pressure
                 vacuum access tube. The pressure vacuum access tube was clamped off, the tubes were stuffed
                 down inside the PVC pipe, and then the pipe was capped. The lysimeter samples were analyzed
                 for nitrate, ammonium, phosphate, pH, and salinity.

                 Soil Coring Of EDAs


                                                                    17









                          At five sites the EDA area was cored to investigate microbial transport between the bottom
                  of the EDA (gravel/soil interface) and the water table. A post-hole digger was used to manually
                  excavate below the EDA to the gravel/soil interface. A 4" PVC pipe was inserted into the hole to
                  prevent collapse of the surrounding soil material during the coring process. Cores were obtained
                  using an 18-inch split-spoon soil corer inserted with a 1.5-inch diameter sterile sleeve to maintain
                  sterility and core integrity during transport. Between cores, the two halves of the split spoon were
                  rinsed with distilled water, a new sterile sleeve was inserted, and the bit and core retainer were
                  sterilized using methanol and an open flame.
                          T'he distance between the water table and the bottom of the EDA was estimated by
                  measuring the depth to the water table from the TOC of the nearest well. A sledge hammer was
                  used to drive the soil corer to the desired depth. Several cores were taken below each EDA in
                  order to sample the entire distance between the bottom of the EDA and the water table. Core
                  samples were placed on ice and transported back to JEL for analysis. Soil cores were analyzed for
                  fecal coliforms, E. coli, and C. perfringens using standard multiple-tube fermentation techniques.

                  Soil Core Transects
                          Soil core transects were conducted at sites WRH and REH to investigate the horizontal
                  transport of microbes in the upper foot of the water table, downgradient of the EDA's. Site WRH
                  was transected in the direction of prevalent groundwater flow from the down gradient edge of the
                  leachfield towards the adjacent salt marsh and surface waters. Cores were taken 1, 3, 9, and 27
                  feet away from the EDA. In addition, a core was taken within the EDA and up gradient from the
                  EDA as a control. Site REH, which is tidally influenced, was transected in three directions away
                  from the EDA due to the varying groundwater direction. The transects were sampled at distances
                  of 1, 3, and 9 feet away from the EDA. A control core was taken approximately thirty feet away
                  fi-om the EDA while no core was taken within the EDA at site REH.
                          Water levels were measured in all of the wells at each site to estimate the water table depth
                  below the ground surface. A post-hole digger was then used to excavate down to the water table
                  before samples were taken with the split-spoon soil corer. Samples were stored on ice in a cooler
                  and transported back to JEL for analysis. Soil cores were analyzed for fecal coliforms, E. coli,
                  and C. perfringens.

                  Water And Soil Sample Analysis
                          Samples brought back to JEL were processed for the different analyses, and salinities were
                  recorded using a refractometer. Approximately 500 mls of the nutrient samples were prefiltered
                  through 0.45gm pore size filters. The filtrates were frozen until analysis for ammonium, nitrate
                  and orthophosphate using a LACHAT autoanalyzer. The prefilter was dried and weighed to
                  determine total suspended solids and percent organic matter. Microbiological samples were
                  prefiltered using a Whatman 41 (20-25 jim nominal pore size) filter to remove fine suspended sand
                  and silt particles. A steady flow was maintained during vacuum filtration and filters were replaced
                  if filtration rate decreased because of solids build up on the filters. Filtrates were collected in sterile
                  filter flasks and transferred to sterile sample bottles. Appropriate volumes of filtrates were then
                  filtered through 0.45 pm pore size Gelman membrane filters (enterococci, fecal coliform and E.
                  coli) or 0.7 W pore size Millipore membrane filters (C. per ingens). Filters were incubated on
                                                                                  fir
                  mTEC agar for fecal coliform and E. coli, mE agar for enterococci and on mCP agar for C.
                  perfringens analyses. Plates were incubated at 44.5'C for 24 h for all but enterococci, which were
                  incubated at 41'C for 48 h.
                          Soil core samples were analyzed for fecal coliforms, E. coli, and C. perfringens using the
                  five-tube fermentation technique reported as Most Probable Number (MPN). 1.0 ï¿½ 0.05 grams of
                  wet sediment from the center of each core was added to 9.6 mls of sterile buffered peptone water
                  (BPW) and vortexed for 30 seconds to achieve a 10-1 dilution. Additional decimal dilutions were
                  prepared for multiple-tube fermentation analysis. Fecal coliforms and E.coli MPN's were


                                                                      18









              determined by using EC with MUG media incubated at 44.5C for 24h. C. perfringens densities
              were determined using iron-milk media incubated at 45'C for 24h
                     There were two notable developments in this study that warrant mention before reviewing
              the results of wellwater data. First, initial samples were processed by mixing water with soil
              particles (M; Table 8, FELTER column) or allowing the prevalent soil particles to settle (S), then
              analyzing the supernatant. This process resulted in the detection of relatively high levels of
              bacterial contaminants that remained attached to suspended particles. The sampling and processing
              protocols were then changed to include prefiltration (PF) to avoid including particulate matter in
              Water samples. However, the initial values were valuable to detect the presence of bacteria from
              the subsurface at these well sites, even though many of the detected bacteria were probably
              attached to particles. Second, the changes in groundwater flow direction at some sites shows how
              detection of contaminant plumes in the subsurface can be complicated as contaminant concentration
              gradients in groundwater become blurred as contaminants are transported to different sites. The
              changes measured as part of this study are probably indicative of previous changes in flow
              direction. Thus, contaminants that persist at previous downgradient sites may remain detectable at
              later upgradient sites.
                     The following is a series of discussions about each site and the within site trends and
              conditions. Sample dates, 10-15 for each site, are presented in Table 9. Table 8 is a summary of
              all data, and is separated into sub-tables, labeled 8A-8J, for each site. The dates for which there
              are no data presented (labeled NO B/N under FILTER column; no bacteria/nutrients) were days in
              which the wells did not produce. The sites where sampling was most problematic are sites REH
              on River St. and FDC, the site abutting a non-tidal marsh on Forest Drive. Some wells produced
              on every sample date, while others at some sites produced infrequently. In general, the in-town
              sites, developed on natural soils, produced better than the River St. sites, which were developed
              on sandy fill over wetlands.

              Results

              Seabrook Site Assessments
                     WRH
                     The EDA at this site was raised by fill and lies within 50 feet of poorly drained soils and the
              marsh. ANOVA revealed statistically significant differences between wells at this site for all
              nutrient and microbial parameters (p < 0.01). Vertical transport of NO3, NH4, and P04 in septic
              tank effluent to groundwater was apparent from the elevated concentrations of these constituents in
              groundwater below the EDA, above background levels (Fig 24A & B). Compared to typical mean
              background concentrations of NO3, N114, and P04 in the area, 2.0 mg/L, 0.07 mg/L, and 0.01
              mg/L, respectively, the levels in groundwater below the EDA increased to 4.6 mg/L, 9.3 mg/L,
              and 0.04 mg/L (well 5).
                     Statistical analysis supports the observed vertical transport of N below the EDA since there
              were no differences in DIN levels found in the lysimeter or EDA wells 5 and 3D which had mean
              concentrations of 20.6 mg/L, 13.9 mg/L and 18.0 mg/L, respectively. Phosphorus also exhibited
              minimal vertical attenuation between the bottom of the EDA and the water table since there was no
              significant difference between the level of P in the lysimeter and EDA wells 4 and 5 which had
              mean concentrations of 0. 12 mg/L, 0.34 mg/L, and 0.04 mg/L, respectively. Attenuation of P
              appears to occur within the groundwater zone as evident by the significant reduction between the
              shallow (4) and deep well (313) coupling from 0.34 mg/L to 0.03 mg/L, respectively (Fig. 24B).
                     Lateral transport of N was observed as DIN levels increased significantly above
              background below and to the edge of the EDA, decreased at 27 ft downgradient of the EDA (well
              6), and then increased further downgradient at wells 8 and 9 (Fig. 24A). Mean DIN
              concentrations, below and downgradient of the EDA of >15.0 mg/L were common. Nitrogen
              below the EDA was present primarily as NH4 with N03 levels roughly half those of NE4.


                                                             19









                  Conversely, N03 was the dominant form of N detected in the downgradient wells (6, 7, 8, and 9)
                  and was present at concentrations which exceeded the drinking water limit of 10 mg/L (wells 8 &
                  9). Phosphorus was significantly elevated above background in shallow groundwater as far as the
                  edge of the EDA (well 4) but was significantly reduced in both the vertical (well 3D) and
                  downgradient directions (wells 6,.7, 8, 9, 10) (Fig. 24B).
                          Vertical transport of fecal indicator bacteria (fecal coliforms, E. coli, enterococci, and C.
                  per
                     firingens ) was evident from the consistent detection of these indicators below the EDA (well 5).
                  Geometric mean levels of 90, 46,42, and 0.48 cfu/100 ml for fecal coliforms, E. coli, enterococci,
                  and C. perfringens, respectively, were detected in the EDA well (5) over the sampling period
                  (Table 8). Fecal coliforms, E. coli, enterococci, and C. perfringens were detected at the edge of
                  the EDA (well 3D), at 1.5, 1.5, 0.25, and 0.25 cfu/100 ml, respectively, on only one occasion,
                  and therefore illustrate the limited penetration of bacteria into deeper groundwater zones.
                          Lateral migration of bacteria to the edge of the EDA was apparent from the high levels of
                  indicator bacteria detected there. Geometric mean levels of 592, 512, 8.5, and 1.6 cfu/100 ml for
                  fecal coliforms, E. coli, enterococci, and C. perfringens, respectively, were detected at the
                  downgradient edge of the EDA (well 4). This well contained significantly higher levels of fecal
                  coliforms and E. coli than all other wells except EDA well 5. Bacteria showed limited mobility in
                  the downgradient direction as fecal coliforms were never detected in any of the downgradient wells
                  while enterococci and C. perfiringens were only detected occasionally and at low levels ( <1.5
                  cfu/100 ml) in well 6.
                          Groundwater elevations plotted over the sampling period show that the watertable fell from
                  approximately 1. 25 to 3.0' below the bottom of the EDA from March to August, 1995 (Fig. 24C).
                  A sharp rise in the watertable to the bottom of the EDA occurred in November, 1995 and fluctuated
                  within roughly one foot below the bottom of the EDA thereafter. Ammonium levels in EDA well
                  (5) were greater than 18 mg/L during April and May, 1995 when the watertable was roughly 2 feet
                  below the EDA (Fig. 24D). From November, 1995 to May, 1996, the time period during which
                  the water table fluctuated just at or below the bottom of the EDA (when reducing conditions were
                  greatest), a decrease in NH4 to < 5.*0 mg/L was observed. Conversely, N03 was greatest (>17
                  mg/L) during November, 1995, after the water table rose sharply. This probably resulted from the
                  input of soluble N03 present in the unsaturated zone, from previous oxidizing conditions, to
                  groundwater as the watertable rose. Phosphate levels in the EDA well showed no relationship to
                  groundwater table depth.
                          There appeared to be no significant relationship between watertable depth and the
                  prevalence of a particular N-species in the vadose zone (Fig. 24E). In fact, nitrate is the dominant
                  form of N below the bottom of the EDA even under probable reducing conditions (November,
                  1995) when the vadose zone became saturated (Fig 24E).

                          CSL
                          The EDA at this site consists of a leach field and a dry well that are within 60 feet of poorly
                  drained soils. ANOVA showed that there were significant differences between N03, NH4, P04,
                  and C. perfringens levels in wells at this site (p < 0.01). Vertical transport of N03 and NH4 to
                  groundwater occurred below the EDA (well 4) as mean concentrations of these constituents were
                  elevated 2 and 3 fold, respectively, above background (well 1 & 2) concentrations (Fig. 25A).
                  The EDA well (4) had significantly higher DIN concentrations than either of the upgradient wells
                  I & 2). Additionally, there was no significant difference between DIN levels in the lysimeter and
                  those in the EDA well (4), indicating that minimal attenuation of N occurred between the bottom of
                  the EDA and the watertable. Well 3, at the downgradient edge of the EDA, had significantly higher
                  DIN concentrations than both upgradient and downgradient wells, further supporting the observed
                  vertical transport of N. Statistically, there was no significant difference between P concentrations
                  in the lysimeter and in the EDA well (4). However, mean P04 concentrations in the lysimeter and


                                                                     20









                EDA well (4) of 4.6 mg/L and 0.08 mg/L suggest attenuation of P04 as it migrates vertically below
                the EDA.
                        Lateral transport of N appears to be limited to shallow groundwater at the edge of the EDA
                (well 3) as DIN levels decreased to background concentrations in the deeper well at the edge of the
                EDA (513) and at the downgradient well (6) (Fig. 25A) Additionally, N appears to be undergoing
                nitrification as it migrates laterally downgradient as evident by the increase in N03 and decrease in
                NE4. It also appears that denitrification or dilution is occurring as DIN levels also decrease with
                distance from the EDA. No lateral transport of P was observed (Fig. 25B) as evident by
                background concentrations of <0.0 I mg/L of P04 in all wells except EDA well 4.
                        Vertical transport of fecal indicator bacteria was evident at this site as at least two, and more
                commonly all four, indicator bacteria were detected at all wells on one or more sampling dates.
                Relatively higher levels and more frequent detection occurred in the EDA wen (4) with fecal
                coliforms, enterococci, and C. per
                                                    firingens ranging from 0-53, 0-48, and 0-22 cfU/100 ml,
                respectively. However, geometric mean levels of all indicators in the EDA wen were <1.0 cfu/100
                ml. C. per
                          firingens was detected at significantly higher levels in the EDA well (4) than all other
                wells. Less frequent detection of indicator bacteria and at relatively lower concentrations occurred
                in the deep well (513) at the edge of the EDA indicating that minimal transport of bacteria through
                the watertable occurred. Lateral transport of bacteria to downgradient well 6 occurred on only
                three of 14 sampling dates. Only fecal coliforms and E. coll were detected and only then at
                relatively low levels (< 2.2 cfu/100 ml).
                        Groundwater elevations plotted over the sampling period show that the watertable fell from
                approximately 0.5 to 2 feet below the bottom the EDA from February to August, 1995 (Fig. 25C).
                The watertable rose sharply after August, 1995 and peaked at approximately 1 foot above the
                bottom of the EDA in February, 1996 and then gradually decreased to roughly I' below the bottom
                of the EDA in June, 1996. Ammonium levels in groundwater below the EDA were greatest ( >17
                mg/L) from April to June, 1995 when the watertable was approximately I foot below the bottom of
                the EDA (Figure 25D). NH4 levels decreased thereafter to < 2.0 mg/L despite inundation of the
                EDA by the watertable in, February, 1996. Nitrate levels seemed to be more variable but did peak
                at 17.9 mg/L in October of 95 which coincided with a sharp rise in the watertable. A similar
                increase in N03 with a sharp rise in the waterlable was observed at site WRH and was attributed to
                N03 present in the soil matrix from previous unsaturated and likely oxidizing conditions.
                Phosphate levels in groundwater below the EDA did not appear to be affected by watertable depth,
                however, one of the largest levels of P04 (0.24 mg/L) occurred when the watertable peaked at
                slightly less than a foot above the bottom of the EDA in February, 1996.
                        Nitrate levels in the lysimeter were inversely related to the depth of the watertable below the
                bottom of the EDA (Fig. 25E). Lysimeter NH4 levels were consistently low (< I mg/L)
                throughout the sampling period except for conditions where the lysimeter was in saturated
                conditions. In February, 1996, NH4 exceeded 9 mg/L and coincided with the maximum rise in the
                watertable, and in June, 1996, N114 exceeded 24 mg/L when the watertable was slightly less than a
                foot below the bottom of the EDA. Phosphate levels in the lysimeter remained consistent
                throughout the sampling period, fluctuating between 3 and 6 mg/L, and were not affected by
                saturated conditions induced by the rise in the watertable.

                        KDBM
                        This state-approved system lies within 100 feet of poorly drained soils and marsh, and is
                adjacent to an identical system that serves the other half of the duplex. ANOVA revealed that there
                are statistically significant differences between wells at this site for N03 and DIN only (p < 0.01).
                The fact that there is no significant difference between either of the upgradient wells (1 & 2) and
                the EDA well (3) for any of the nutrient parameters would seem to indicate that there is no vertical
                transport of nutrients to groundwater below the EDA. However, this interpretation is misleading.


                                                                   21









                  Downgradient wells (5 & 7) have significantly higher levels of nitrate than the EDA well (3) or
                  upgradient well (1) and clearly indicate that the groundwater below and downgradient of this
                  system is impacted primarily with nitrate (Fig. 26A). The EDA well may not have intercepted the
                  contaminant plume and thus may explain why expected elevated levels of nutrients are not present
                  in this well. The lysimeter at this site had mean NO3, NH4 and P04 concentrations of 24, 9.4, and
                  12.7 mg/L, respectively, while the EDA well had much lower levels of 6.3, 0.7 8, and 0.0 1 mg/L,
                  respectively.
                          Lateral transport of nitrate is evident by the significantly higher levels in downgradient
                  wells, 5 and 7, which had mean N03 concentrations of 19.4 and 21.4 mg/L, respectively. Ilese
                  levels of nitrate are nearly double the permissible levels allowed in drinking water (10 mg/L). In
                  addition, nitrate levels in well 12, which is approximately 43 m downgradient of this system, had
                  N03 concentrations in excess of 14.9 mg/L during April and May of 1996. Phosphorus, which
                  had a mean concentration of >12.0 mg/L in the lysimeter, showed no vertical transport to the water
                  table as evident by the fact that the P04 concentration in the lysimeter was significantly higher than
                  EDA well 3 (Figure 26B). In addition, there was no significant difference between any of the
                  wells at this site for P04.
                          Low levels of bacteria were detected in all wells at this site except downgradient wells 10-
                  15, where no bacteria were detected. There was no significant difference in levels of bacteria
                  between wells. Fecal coliforms, E. coli, and C. perfringens were detected in the EDA well (3) and
                  ranged from 0-75, 0-72, and 0-51 cfu/100 ml, respectively, with only a few organism generally
                  being detected on most sample dates. Low levels of bacteria also appeared to be transported
                  laterally as indicated by the detection of all fecal indicators or only C. perfiringens in wells 7 and 5,
                  respectively. Again, only a few organisms were detected on most sampling dates with geometric
                  mean levels for the entire sampling period being <1 cfu/100 ml for all indicators in all wells.
                          Groundwater elevations slowly dropped from approximately 3 to 5.5 feet below the bottom
                  of the EDA from March to August, 1995 (Fig. 26C). After August, 1995 the watertable rose
                  sharply to roughly 3 feet below the EDA in February, 1996 and then slowly dropped to 3.5 feet
                  below the EDA in May, 1996. Ammonium concentrations in groundwater below the EDA
                  averaged <1.0 mg/L during the entire study and is indicative of the unsaturated, oxidizing
                  conditions below the EDA over this time period (Fig. 26E). Nitrate concentrations were lower
                  than expected, < 7 mg/L for most sample dates, although they did reach 25 and 13 mg/L in June,
                  1995 and February, 1996, respectively. Phosphorus concentrations below the EDA were
                  extremely low and never exceeded 0.06 mg/L.
                          Of the four lysimeter samples obtained at this site, two were taken in August and
                  September, 1995 while the remaining two were taken in June, 1996 (Fig. 26H). Nitrate was
                  greater than 19 mg/L during all samples dates while NH4 decreased from greater than 17 mg/L on
                  the first two dates to < 2 mg/L in June, 1996. It is unclear why NE4 was so high during August
                  and September, 1995, especially in light of the fact that the watertable was greater than 2 feet
                  below the lysimeter, providing adequate oxidizing conditions. Phosphorus increased from 5 and 7
                  mg/L in August and September, 1995, respectively, to >17 mg/L in June, 1996. Perhaps the
                  high levels of NH4 and P04 were associated with elevated loading conditions where N-
                  transformation such as nitrification would have less time to take place and where P04 would be
                  less quickly adsorbed. Ammonium and P04 levels in lysimeter samples did not show any clear
                  association with watertable depth below the EDA while nitrate was always present at high levels,
                  as expected, due to unsaturated conditions.

                          KDBS
                          This state-approved system lies within 100 feet of poorly drained soils and marsh, and is
                  adjacent to an identical system that serves the other half of the duplex. ANOVA revealed
                  statistically significant differences between wells at this site for NO3, DIN, and P04 (p < 0.01),


                                                                     22









                while there were no differences in bacterial levels between any wells. Vertical transport of N03 to
                groundwater was evident as N03 increased from the upgradient well (2) to the EDA well (4) with
                mean concentrations of 2.3 mg/L and 16.1 mg/L, respectively (Fig. 26A). In addition, there were
                no significant differences between N03, NH4, and DIN concentrations in the lysimeter and the
                EDA well (4), further supporting the observed vertical transport of N. Nitrate was the dominant
                form of N in the EDA and downgradient wells (6 & 8) as a result of the oxidizing conditions below
                the EDA due to a watertable depth of greater than 3 feet below the bottom of the EDA during the
                entire study period (Fig. 26D). Mean NH4 concentrations were less than 1.4 mg/L in all wells.
                The lysimeter had significantly higher concentrations (mean = 14 mg/L) of P04 than all other wells
                which had mean concentrations Of P04 < 0.05 mg/L. There was no vertical transport of P04 as it
                was attenuated within the unsaturated zone below the EDA.
                        Lateral transport of N in the downgradient direction, primarily as N03, is apparent (Fig.
                26A) as the downgradient wells (6 & 8) were significantly higher in N03 than the upgradient well
                (2). No lateral migration of P occurred as P04 was attenuated in the unsaturated zone below the
                EDA as mentioned earlier.
                        No fecal indicator bacteria were detected in the EDA well (4) on any of the 6 sampling
                dates. However, low levels of fecal coliforms, E. coli, enterococci, and C. perfringens ranging
                from 0-7.5, 0-7.25, 0-1.75, and 0-0.5 cfu/100 ml, respectively, were detected on a few occasions
                in downgradient well 6. Fecal coliforms, enterococci, and C. perfringens were occasionally
                detected at very low levels ( <2 cfu/100 ml) in downgradient well 8. The microbiological data
                indicates that vertical and lateral migration of bacteria below the EDA at this site is inhibited and is
                unlikely to substantially impact groundwater quality.
                        The watertable depth below the EDA at this site remained at about 4 feet below the bottom
                of EDA from March, 1995 to May, 1995 and then dropped to approximately 6.5 feet below the
                EDA in August, 1995 (Figure 26D). The watertable increased after August, 1995 to roughly 3 feet
                below the bottom of the EDA in February, 1996 and then gradually decreased to 4 feet below the
                EDA in May, 1996. Nitrate concentrations in groundwater below the EDA decreased gradually
                from approximately 20 mg/L in March, 1995 to roughly 12 mg/L in May, 1996 (Figure 26F).
                Ammonium and phosphate levels, on the other hand, remained relatively constant and never
                exceeded 1.30 or 0.06 mg/L, respectively.
                         Nitrate in lysimeter samples generally varied between 18 and 21 mg/L from August, 1995
                to April, 1996 and seemed to be unaffected by changes in watertable depth (Fig. 26G).
                Phosphorus concentrations also varied but exhibited an increasing trend over time with a peak of
                approximately 22 mg/L in February, 1996 which coincided with the maximum rise in the
                watertable. Ammonium concentrations declined from 17 mg/L in August, 1995 to <1 mg/L from
                September, 1995 to November, 1995 then peaked at >15 mg/L in February, 1996 which coincided
                with the maximum water table rise.


                        REH
                        The EDA at this site consisted of separate graywater and blackwater leaching areas located
                very close to the marsh edge, so that the surface of the leach field was often under water at high
                tide. ANOVA revealed that there are statistically significant differences between wells at this site
                for NH4 and DIN only (p < 0.01). Vertical transport of N is apparent since the well at the edge of
                the EDA (5) has significantly higher levels of NH4 and DIN then the upgradient well (1). Elevated
                levels of NH4 and DIN in downgradient wells 2 and 5, above background levels (well 1), can be
                seen in Figure 27A. There appears to be vertical transport of P04 to the deep well (613), which has
                a mean concentration of >0.4 mg/L, despite there being no significant difference between any wells
                for P04. The fact that P04 levels in 6D are not significantly elevated could be due to the fact that
                the upgradient well (1) is also elevated with a mean concentration of >0. 16 mg/L (Fig. 27B).
                        Lateral transport of N away from the EDA is evident from the elevated levels of N in the


                                                                   23









                  downgradient well (2), primarily as NH4. Mean NH4 and N03 levels in well 2 were 12.5 and 5.8
                  mg/L, respectively, while mean NH4 levels in the upgradient well (1) were <1.0 mg/L. Well 2
                  was significantly higher in NH4 and DIN than the upgradient well (1). Downgradient wells 7 and
                  8, which are located in the tidal stream which traversed the downgradient edge of the property, had
                  lower levels of DIN, primarily as NH4, than observed in wells 5 and 2 (Fig. 27A). However,
                  mean levels of NH4 in wells 7 and 8 were 3.5 and 2.2 mg/1-, respectively, which were still slightly
                  elevated above the upgradient well (1) which had a mean NH4 concentration of 0.79 mg/L. Lateral
                  transport of P was less apparent. Elevated levels of P04 relative to known background
                  concentrations were found in the upgradient well (1), the deep well (61)), and downgradient wells
                  7 and 8 which had mean concentrations of 0. 16, 0.41, 0.12, and 0. 19 mg/1-, respectively.
                  Elevated levels of P in the downgradient wells 7 and 8 could not be attributed to the influence of
                  surface waters present in the tidal creek since mean P04 levels in these surface waters were <0.06
                  mg/L. No significant trend of P04 in groundwater from the upgradient well (1) to the
                  downgradient wells (2, 7, & 8) makes it difficult to assess P04 transport mechanisms. It appears
                  that P04 is smeared across this site which probably results from the changes in groundwater flow
                  direction and the tidal inundations, which occur twice each day during high tides.
                          Vertical and lateral transport of bacteria was minimal at this site. Fecal coliforms, E. coli,
                  enterococci, and C. perfringens were detected only once at the edge of the EDA (wen 5) at 0.5,
                  0.5,0.5, and 5 CFU/100 ml, respectively. Fecal coliforms and E. coli were detected in the deep
                  well (613) on one date at 7 and 0.75 CFU/100 ml, respectively. No bacteria were detected in any
                  other wells (1, 2, 3, 4, 7 & 8) using the membrane filtration protocol. It should also be noted that
                  very few samples were obtained from these wells, generally < 5 samples. MPN analyses of
                  samples that were prefiltered showed C. perfringens levels of 700, 63, and 500 CFU/ 100 ml in
                  wells 1, 2, and 5, respectively, on one sampling date. These higher counts were likely associated
                  with the increased attachment of bacteria to the suspended solids content of these samples which is
                  why the MPN method was necessary. The low levels of bacteria detected in prefiltered
                  groundwater at this site seem to indicate that both vertical and lateral migration of bacteria is
                  inhibited and that microbiological impact on groundwater quality at the study wells is minimal.
                  However, the evidence from the unfiltered samples suggests that lateral transport does occur. A
                  better conclusion is that few free-floating bacteria were present in the wells sampled, but there is
                  ample evidence of transport, recent or historical, in many of the wells.
                          'Me watertable at this site was at or above the assumed bottom of the EDA during the entire
                  study except for July, 1995 when the watertable, dipped to approximately 0.5 feet below the bottom
                  of the EDA (Fig. 27C). Ammonium was the dominant form of N below the EDA (well 5)
                  because of the reducing conditions present below the EDA and was consistently >17.0 mg/L (Fig.
                  27D). Nitrate was <0.3 mg/L in four out of the six samples but did peak twice in December, 1994
                  and October, 1995, when concentrations reached greater than 15 and 12 mg/L, respectively. The
                  October, 1995 peak appeared to be associated with a one foot drop in the watertable. Phosphorus
                  levels in the EDA (well 5) were very low ( <0.02 mg/L) throughout the study period.
                          It seems possible that denitrification could be occurring at this site due to prevalence of
                  reducing conditions from the extremely high water table. A substantial reduction in DIN between
                  wells 5 and 2 and downgradient wells 7 and 8 would support this. There is probably an
                  abundance of organic-C, potential electron donating substrate required for denitrification, present
                  in the subsurface since this area was filled over an organic matter-rich saltmarsh. The reduction in
                  DIN away from the EDA could also result from other factors like dilution and ammonium
                  adsorption.

                          RET
                          'Me EDA at this site lies within 75 feet of poorly dr-ained soils with mottling observed at 20
                  inches in the fill near the EDA. ANOVA showed that there are significant differences between


                                                                    24









                wells at this site for N03, NH4, and DIN (p < 0.01). Groundwater monitoring at this site
                suggested that the downgradient direction is toward well 3. Vertical transport of N directly below
                the EDA was minimal as evident by the slightly elevated levels of N03, NH4, and DIN above
                background wells 4 and 5 (Fig. 28A). In addition, there were no significant differences between
                levels of N03, NI-14, and DIN in the EDA well (6) and the upgradient wells (4 & 5).
                Downgradient wells 2 and 3, which have mean DIN concentrations of 12.0 and 11.7 mg/L,
                respectively, are significantly higher in DIN than both upgradient wells 4 and 5, which have a
                mean DIN level of approximately 1.2 mg/L. The elevated levels of DIN, primarily as NH4, in
                downgradient wells indicates that vertical transport of N below the EDA is occurring despite not
                being detected by the EDA well (6). Phosphorus below the EDA (well 6) is elevated (mean = 0.29
                mg/L) above background wells (Fig. 28B) but is not statistically higher than any of the other wells,
                suggesting that vertical P transport is minimal.
                        As mentioned previously, lateral transport of N, primarily as ammonium, has been detected
                in downgradient wells 2 and 3, based on the significantly higher levels of DIN in these wells,
                mostly as NH4, above upgradient wells (4 and 5). No lateral transport of P was observed as there
                were no significant differences in P04 concentrations between any of the wells. Slightly elevated
                levels of P04 were measured in the downgradient well (3) which had a mean concentration of 0.04
                mg/L.
                        Vertical transport of indicator bacteria below the EDA was limited. Fecal coliforms,
                enterococci, and C. per                                                                             U
                                       firingens were each detected once out of 4 samples below the EDA (we 6).
                Fecal coliforms and C. perfringens were detected in unfiltered samples using MPN analysis at 20
                and 40 MPN/100 ml, respectively, while enterococci was detected at 0.25 cfu/100 n-d using
                membrane filtration in well 6. Downgradient well 2 had the most consistent detection of bacteria
                with geometric mean levels of fecal coliforms, E. coli, enterococci, and C. perfringens equal to
                0.71, 0.70, 7.53, and 0.57 cfu/100 ml, respectively. All other wells had geometric mean levels <1
                cfu/100 ml for all indicators. Detection of indicator bacteria infrequently at relatively low levels for
                all wells at this site suggests minimal vertical and lateral mobility of bacteria.
                        Groundwater depths plotted over time show that the watertable below the EDA dropped
                from just at the ground surface in March, 1995 to roughly 2 to 2.5 feet below the bottom of the
                EDA after May, 1995 (Fig. 28C). It is difficult to assess any relationship between watertable,
                depth below the EDA and die prevalence and concentration of N03, N144 or P04, since only three
                nutrient samples from this well were obtained (Fig. 28D). Clearly, the high levels of DIN in
                downgradient wells 2 and 3, primarily as NH4, indicate that reducing conditions prevail around the
                EDA, making it unlikely that nitrification and subsequent N loss due to denitrification will occur.

                        R B
                        The EDA at this site consisted of a cesspool and a dry well, both within 30 feet of very
                poorly drained soils and the highest observable tide. The system was rarely used, as the cottage
                was vacant most of the time. ANOVA revealed that there are no significant differences between
                wells for any of the nutrient or microbial parameters at this site at the p = 0.05 level.
                Groundwater concentrations of N03, NH4, and DIN averaged <2.0 mg/L in all wells (Fig. 29A)
                and are similar to background concentrations seen at sites CSL (wells 1 & 2), REH (well 1), and
                RET (wells 4. & 5). The relatively low concentration of N03 and NE4 in groundwater samples
                suggests that there is limited vertical and lateral transport of N at or to this site. However, mean
                P04 concentrations of 0.54, 0.22, 0.26, and 0. 14 mg/L in wells 1, 2, 3, and 4, respectively,
                indicate lack of P attenuation and extensive transport in the vertical and lateral directions (Fig.
                29B). Ile cumulative effect of subsurface loading from the high density of homes in this area may
                have exceeded the soils natural adsorptive capacity of the soils and contributed to the enrichment of
                groundwater with P.
                        No bacteria were detected in the upgradient well (1) which only yielded two samples during


                                                                  25








                  the study period. Fecal coliforms, E. coli, and enterococci were detected occasionally and at low
                  levels ( <3 CFU/100 ml) in downgradient wells 3 and 4 using standard prefiltration protocol.
                  Higher levels (10 to 100x) of enterococci and C. perfringens were detected using MPN analysis.
                  Fecal coliforms, E. coli, and enterococci were consistently detected in the well closest to the EDA
                  (2) at low levels, i.e., geometric means:51 CFU/100 ml. The microbiological data indicate that
                  there is limited vertical and lateral nigration of bacteria to or away from the EDA at this site.
                         Evaluation of groundwater depths throughout the study period show that the watertable
                  fluctuated between 2 and 2.5 feet below the estimated bottom of the EDA most of the time (Fig.
                  29C). Nitrate concentrations in the EDA well (2) peaked at 0.23 mg/L but were typically less than
                  0.03 mg/L (Figure 29D). Ammonium levels in the EDA well reached as high as 11. 1 mg/L in
                  March, 1996 but were well below I mg/L in eight out of eleven samples taken between December,
                  1995 and March, 1996. Phosphorus levels in the EDA well also peaked in March, 1996 at 0.52
                  mg/L. There did not appear to be any re@lationship between watertable depth and nutrient levels in
                  the EDA well (2). Nitrogen does not appear to be transformed with migration in the downgradient
                  direction. Mean NH4 and DIN levels decrease from 1.7 and 1.8 to 0.80 and 0.93 mg/L from the
                  EDA well (2) to the downgradient well (4), respectively. This decrease could be attributable to
                  dilution, ammonium adsorption or denitrification.

                         RH
                         The EDA at this site was located on a narrow piece of property squeezed between the
                  property owner's home and the driveway of the abutting property. It is 85 feet to very poorly
                  drained soils and the highest observable fide. ANOVA revealed that there are statistically
                  significant differences between wells for all parameters at this site (p < 0.05) with the exception of
                  DIN, P04 and C. perfringens. Groundwater monitoring has'shown that subsurface flow is toward
                  wells I and 2. There appears to be limited vertical transport of N to groundwater in EDA wells 3
                  and 5D, which have mean DIN levels of 2.3 and 2.1 mg/L, respectively (Fig. 30A). These DIN
                  levels are statistically the same as background concentrations observed within this site (well 4) and
                  are similar to background concentrations at sites REH (well 1), RET (well 4 & 51)), and CSL
                  (well I & 2). Elevated mean levels of DIN, primarily as N03, in downgradient wells I and 2
                  indicates that some vertical transport of N occurs albeit at lower concentrations observed below
                  other EDA's. The mean nitrate concentration of 5.84 mg/L in downgradient well 1 was
                  significantly higher than the mean nitrate level of 0.43 mg/L observed in the upgradient well (4).
                  This observation supports the vertical transport of N with subsequent downgradient migration to
                  well 1. Vertical and lateral transport of P04 was apparent as mean concentrations ranged from
                  0. 131 mg/L in downgradient well I to 2.1 mg/L in the EDA well (5D; Figure 30B). There were no
                  statistical differences between any wells for DIN or P04 indicating that there is a "smearing" of
                  these nutrients throughout the site.
                         Fecal coliforms, E. coli, and enterococci below the EDA (well 3) ranged from 0-500, 0-
                  470, and 0-4.5 cfu/100 ml, respectively, with levels <2 cfu/100 ml being more typical. The
                  downgradient well (1) had the greatest geometric mean levels of fecal coliforms, E. coli, and
                  enterococci of any well with 18.5, 16.9, and 1.5 cfu/100 ml, respectively. Enterococci were the
                  only indicator bacteria detected in the EDA deep well (5D) on two occasions and only at levels
                  <0.5 cfu/100 ml. C. perfringens was never detected in any of the wells using the standard
                  prefiltration protocol. However, it was detected in wells 1, 2 and 3 at levels as high as 285, 10,
                  and 145 MPN/100 ml, respectively, using the MPN method. The downgradient well (1) had
                  significantly higher levels of fecal coliforms and E. coli than all other wells, which suggests that
                  there is substantial lateral microbial transport occurring approximately 10 feet downgradient of the
                  EDA. The detection of enterococci only, at infrequent and very low levels, in well 5D, suggests
                  that vertical migration of bacteria to deeper groundwater zones is inhibited.
                         Watertable depth below the estimated bottom of the EDA (well 3) was always greater than 4


                                                                    26









                feet with the largest separation, 6 feet, occurring in June, 1995 (Fig. 30C). The highest
                concentration of N03 measured below the EDA (well 3) occurred in December, 1994 when > 13.0
                mg/L was detected (Fig. 30D). Nitrate levels fluctuated between 0 and 3 mg/L thereafter with N03
                levels <030 mg/L prevailing after July, 1995. Ammonium levels fluctuated slightly less over the
                same time period and typically remained <1.0 mg/L. Neither N03 or NH4 concentrations in
                groundwater below the EDA appeared to be affected to any great extent by watertable levels.
                Phosphorus peaked in March, 1995 at 1. 11 mg/L and appeared to coincide with the maximum
                recorded watertable rise.
                        Nitrogen from the septic system appears to be undergoing nitrification as it migrates in the
                downgradient direction since N03 is the prevalent N species in wells I and 2. We would expect to
                detect this oxidized form of N in groundwater due to the large separation between the bottom of the
                EDA and the watertable at this site. It is difficult to assess whether denitrification is occurring
                since true DIN levels below the EDA area were not likely measured because of well placement.

                        RP
                        This site is served by a single EDA which is approximately 90 feet to very poorly drained
                soils and the highest observable tide. ANOVA showed that there were no significant differences
                between wells for any parameter except N03- Mean DIN levels ranged from 1.3 to 3.4 mg/L in
                wells across this site (Fig. 3 1 A) and are similar to background concentrations observed at other
                sites in this area such as well RH-4, REH- 1, and RET-4 & 5. Slightly elevated levels of N (mean
                DIN = 2.9 mg/L), primarily as N03, occurred in the EDA well (1). Similar DIN levels were also
                observed in the downgradient well (3) with mean N03 and NH4 present at roughly equal
                concentrations of 1.8 and 1.7 mg/L, respectively. The relatively low concentration of DIN present
                in wells at this site suggest limited vertical and lateral transporL The only statistically significant
                difference found between wells was that the downgradient well (3) was significantly higher (p
                <0.01) in N03 (mean = 1.8 mg/L) than EDA wells I and 5D which had mean N03 concentrations
                of 2.2 and 0.04 mg/l-, respectively. Mean P04 levels ranged from 0.18 to 1.8 mg/L in the shallow
                and deep EDA well, I and 5D, respectively (Fig. 3 1 B). These highly elevated concentrations are
                similar to P levels observed at other sites on this street (RH, RC, and RB) and suggest significant
                vertical and lateral transport of P throughout this area.
                        Wells placed downgradient of this site, along the beach interface (wells RP/RC 1-4),
                showed slightly lower levels of DIN than upgradient wells, primarily as NH4, with the exception
                of the deep well RP/RC-4D. This well had a mean DIN concentration of >1.5 mg/L which was
                similar to the EDA well 5D. P04 levels in the RP/RC wells were slightly elevated over there
                upgradient counterparts and had mean P04 concentrations >0.25 mg/L. These elevated levels in
                the downgradient beach interface wells suggest that P04 is being transported to surface waters at
                this site.
                        Detection of indicator bacteria in well water samples was infrequent and often at very low
                levels, typically <0.5 cfu/100 nil. Fecal coliforms and E. coli were detected once, at elevated
                levels, in the shallow EDA well (1) at 71 and 42 cfu/100 ml, respectively. Infrequent detection of
                bacteria in all wells and at very low levels suggests that both vertical and lateral migration of
                bacteria is limited at this site.
                        Groundwater monitoring over the study period showed that the watertable was consistently
                greater than 4.5 feet below the estimated bottom of the EDA from March, 1995 to April, 1996 with
                minor fluctuations (Fig. 3 1 Q. Nitrate concentrations below EDA well I peaked at 14 mg/L in
                February, 1995 and sharply decreased to <0.75 mg/L throughout the rest of the study (Fig. 3 1D).
                Ammonium concentrations below the EDA remained relatively constant, fluctuating between 0.31
                and 2.5 mg/L. Phosphate peaked in June, 1995 at 0.89 mg/L. There was no correlation between
                watertable depth below the EDA and levels of measured nutrients.
                        It is difficult to assess N-transformations and dynamics below this system since


                                                                   27








                groundwater is moving in several different directions at this site. One observation which can be
                made is that the watertable depth below the EDA should provide an adequate aerobic zone for
                nearly complete nitrification to occur. However, mean NH4 concentrations in groundwater
                samples were greater than or equal to N03 concentrations in wells 2, 3, 4, and 5D. Perhaps these
                well represent background groundwater concentrations of these two constituents.

                        RC
                        This site is served by a state-approved system located approximately 70 feet to very poorly
                drained soils and the highest observable tide. ne home and septic system cover -35% of the total
                area of this lot. ANOVA showed that there are significant differences between wells at this site for
                N03 and fecal colifornis (p < 0.05). Vertical transport of N, mostly as NH4, below the EDA (well
                4) is evident from mean DIN concentration of >12.0 mg/L measured in this well (Fig. 32A).
                Lateral transport of N to downgradient wells I D and 3 is also evident from mean DIN
                concentrations of >10.0 mg/L measured in these wells. Vertical and lateral transport of P04 is
                apparent as wells RC 1-4 all have P04 concentrations >0.70 mg/L (Fig. 32B).
                        Vertical transport of bacteria beneath the EDA (well 4) appeared to be limited as fecal
                coliforms, E. coli, and enterococci were detected only as high as 1.0, 1.0, and 3.5 cfU/100 ml,
                respectively. More frequent detection of indicator bacteria was found in downgradient wells 1D
                and 3. Downgradient well ID had fecal coliform, E. coli, and enteroco'cci levels which ranged
                from 0-32, 0-26, and 0-9.2 cfu/1 00 ml, respectively, while each had geometric means of 2. 1, 1. 1,
                and 1.2 cfu/100 ml, respectively. Downgradient well 3 had relatively lower levels of fecal
                coliforms, E. coli, and enterococci with geometric means of 0.6, 0.6, and 1.3 cfu/100 ml,
                respectively. Consistent detection of fecal indicator bacteria in downgradient wells demonstrates
                the ability of bacteria to migrate in groundwater at relatively low levels in the vertical and lateral
                directions at this site.
                        Groundwater monitoring at this site showed that the watertable was consistently greater
                than 4 feet below the estimated bottom of the EDA with the exception of May, 1995 in which the
                watertable rose to within roughly 2 feet of the EDA bottom (Fig. 32C). Nitrate, ammonium, and
                phosphate fluctuated considerably below the EDA throughout the study period (Fig. 32D).
                Changes in concentrations of these nutrients below the EDA do not appear to correlate with
                watertable, depth, and more likely reflect changes in loading rates and ensuing degree of treatment
                within the chamber system.
                        Denitrification does not appear to be happening as groundwater migrates from the EDA
                well (4 ) to downgradient wells ID and 3 based on the fact that the DIN concentration does not
                appreciably decrease. It does appear that some nitrification may be occurring in the downgradient
                direction as downgradient well 3 had significantly higher levels of N03 (mean = 7.04 mg/L) than
                the EDA well (mean = 3.42 mg/L).

                Inter-site Comparisons
                        The ranges of contaminant concentrations for all samples from all of the wells at each site
                are summarized in Table 10 to see if there are trends in contaminant concentrations relative to
                specific sites or areas. The lowest values in the concentration ranges presented are considered
                indicative of background levels at each site. The River St. sites had higher background levels of
                ammonium and much higher 'high' concentrations of phosphates compared to the in-town
                samples. The high phosphate levels may reflect the extreme high density of houses and septic
                systems on River St. and accompanying high P-loading rates, compared to the in-town sites. High
                ammonium levels suggest incomplete nitrification occurring in the soils of River St., possibly a
                result of development on relatively shallow fill soils overlying wetland soils that have more limited
                depths of aerobic, unsaturated soils required for nitrification.
                        The background nitrate levels were very low at the River St. sites and at two of the four in-


                                                                28









                town sites. These are not necessarily indicative of clean areas, rather, they may also reflect the
                presence of wells, often under EDAs, that have little nitrate produced relative to TDN. The two
                sites with highest 'background' nitrate levels are CSL and KDB, both located in relatively less
                dense housing areas. These also have the highest average nitrate:ammoniurn ratios (Table 10).
                These latter data indicate a high rate of nitrification relative to TDN. The River St. sites are again
                apparently different from the in-town sites in that their ratios are all relatively low, with most below
                1.0, while in-town sites have higher ratios, most well above 1.0. Thus, much of the TDN at in-
                town sites has been nitrified, compared to an apparently lower conversion at sites with low ratios.
                        The high values in the presented concentration ranges for contaminants in Table 10 can be
                compared to literature values for septic tank effluent contan-driant concentrations in Table 1.
                Bacterial contaminant concentrations never came close to estimated effluent concentrations.
                Orthophosphate concentrations were within the range of the estimated effluent concentrations (6-15
                mg P/L) at RH, RP and RC, with concentrations ranging from 6.9 to 8.9 mg P/L. Ammonium
                reached concentrations nearly equal to the lower end of the estimated effluent concentration (28-90
                mg N/L) at sites REH, RET, RC, CSL, WRH, and FDC, all with concentrations of 18-22 mg
                N/L. Nitrate is discharged with septic tank effluent at relatively low levels (Table 1). However,
                TDN concentrations from REH, RH, RC, CSL, WRH, KDB and FDC were >20 mg N/L on one
                or more occasions (Table 8). This occurred most consistently at RC and KDB. Temporal trends
                for all of the sites are typically quite variable (Table 8).

                Surface Water Quality
                        Surface water samples were collected at low tide, from 16 sites throughout the study area,
                from June 1995 to June 1996 (Tables 11 & 12). Samples sites were located in 4 main areas: 1) the
                non-tidal headwaters of Mill Creek in the upper portion of the watershed, the Forest Drive area
                (west of Rt. 1), which included sites SSW 10, 11, and 12; 2) along Mill Creek (tidal) which
                traverses sites WRH and CSL and discharges into Hampton Harbor; these sites include SSW 3, 4,
                5, and 7; 3) sites SSW 8 & 9 at the headwaters of a Farm Brook in the Kimberly Drive area which
                eventually drains into Hampton Harbor, 4) the River Street and Hampton Harbor area which
                includes sample sites in various harbor locations and a tidal creek. These sample sites include
                SSW 1, 2, 6, 13, 14, 15, and 16. Adjacent surface waters at sites WRH, KDBM, KDBS, CSL,
                and REH were sampled both upstream and downstream in to attempt to assess the impacts of these
                particular sites on surface waters.
                        Mean concentrations of N03, NH4, and P04 ranged from 0.52-1.85, 0.13-0.16, and 0.01-
                0.04 mg/L, respectively, in surface waters in the upper portion of the watershed (SSW 10, 11, and
                12; Table 11; Figure 33). The most upstream surface water site, SSW 10, had elevated levels of
                DIN, particularly as N03 (mean = 1.85 mg/L), which was significantly higher than DIN levels
                observed at all other sites. In general, surface water sites in the upper portion of the watershed,
                SSW 10, 11, and 12, contained elevated levels of N03 while NE4 and P04 were similar to
                concentrations observed at other downstream surfacewater sampling locations.
                        Site SSW 10 also had elevated counts of fecal coliforms and E. coli, with geometric means
                equal to 270 and 100 cfu/100 ml, respectively, as compared to SSW 11 and 12 which had
                geometric mean levels of fecal coliforms and E. coli, of 36 and 32 cfu/100 ml, and, 71 and 61
                cfu/100 ml, respectively (Table 12; Figure 34). Enterococci and C. perfringens were also detected
                in surface water samples from SSW 10, 11, and 12 at geometric mean levels of greater than 18 and
                2 cfu/100 ml, respectively.
                        Mean concentrations of N03, NH4, and P04 in surface waters samples from tidal portions
                of Mill Creek, SSW 3, 4, 5, and 7, ranged from 0.49-0.92, 0.09-0.16, and 0.02 to 0.06 mg/L,
                respectively (Fig. 33). Like the surface water samples in the upper portion of the watershed (SSW
                10, 11, and 12), nitrate levels in this area were also elevated above levels typically seen in the
                Hampton Harbor, which average <0. 10 mg/L. The surface water samples in NEU Creek, SSW 3,
                4, 5, and 7, had the highest levels of fecal indicator bacteria compared to all other areas.


                                                                   29









                 Geometric mean levels of fecal coliforms, E. coli, enterococci, and C. perfringens ranged from
                 230-620,180-410, 44-140, and 14-79 CFU/100 ml, respectively (Fig. 34). SSW 7 had
                 significantly higher levels of all fecal indicators than most of the Hampton Harbor sites.
                        Surface water samples from Farm Brook in the Kimberly Drive area also had elevated
                 concentrations of N03 and P04 (Fig. 33). SSW 8 and 9 had mean concentrations of N03, NH4
                 and P04 of 1. 31, 0.2 1, and 0.22 mg/L, and, 1.77, 0.12, and 0.20 mg/L, respectively. 'Me P04
                 concentration measured at these two surface water sites were significantly higher than P04
                 concentrations measured at all other surface water sampling locations. Geometric mean levels of
                 fecal coliforms and E. coli in SSW 8 and 9 were 75 and 68 cfu/100 ml, and 109 and 91 cfu/100
                 ml, respectively. Enterococci and C. perfringens were detected at geometric mean levels of greater
                 than 141 and 7 cfu/100 ml at these two locations (Fig. 34). The levels of fecal indicator bacteria
                 detected in surface water samples from this area were relatively lower than those found in Mill
                 Creek and the upper watershed sites yet elevated above those levels detected in Hampton Harbor.
                        Levels of nutrients and microbial indicators measured in surface water samples from the
                 River St./Hampton Harbor area were generally lower than levels observed at the other surface
                 water sampling locations (Figures 33 & 34). Mean concentrations of N03, NE4, and P04 at SSW
                 sites 1, 2, 6, 13, 14, 15, and 16 ranged from 0.03-0.11, 0.06-0.27, and 0.02-0.06 mg/L,
                 respectively. Geometric mean levels of fecal coliforms, E. coli, enterococci, and C. perfringens at
                 these same sites ranged from 2-37, 2-32, 22-25, and 2-15 cfU/100 ml, respectively.
                        All surface water sites showed significant levels of fecal contamination. The geometric
                 mean limit of :514 fecal coliforms/100 ml for approved shellfish areas as promulgated by the
                 National Shellfish Sanitation Program was exceeded at every site except one. The lone site where
                 the limit was not exceeded was site SSW 16 at the mouth of Hampton Harbor. This sampling
                 location was different in that it did not sample harbor waters or a creek, rather, it sampled overland
                 flow which occurred at low tide on the beach on the Seabrook side of the harbor. In New
                 Hampshire, the marine swimming/recreational waters standard is 35 enterococci/100 nil. This
                 value was exceeded at sites 3-5 and 7- 10, all located on the small tidal streams while the levels for
                 harbor sites were <35. There was no clear connection between surface water quality and
                 groundwater contamination at any specific site. This was evident as there were no statistically
                 significant differences between upstream and downstream surface waters at any site for any of the
                 measured parameters.
                        The greatest levels of nutrient and fecal contarnination occurred in the upper portion of the
                 watershed (Forest Drive area), along Mill Creek, and in Farm Creek near Kimberly Drive. The
                 Kimberly Drive sites were probably affected by the high N03 levels found in groundwater
                 downgradient from KDBM and KDBS. All three of these areas are characterized by relatively
                 high density housing developments which rely entirely on septic systems for wastewater disposal.
                 There are no other known sources of nutrient or fecal contaminants in these areas, thus it appears
                 that the cumulative effect of these high density residential areas are responsible for the observed
                 nutrient and microbial contamination of surface waters in these areas. Several researchers have
                 associated fecal and nutrient contamination of surface waters with residential density (Bicki and
                 Brown, 1990; Perkins, 1984; Duda and Cromartie, 1982; Morrill and Toler, 1973).
                         The harbor waters contained relatively lower levels of nutrient and microbial contaminants
                 which probably resulted from increased dilution from tidal exchange, the harsher saline
                 environment, and transport time of fecal rnicroorganisms.

                 Soil Cores
                        The initial groundwater samples that were either mixed or sampled from the supernatant
                 were of interest to locate areas where bacterial contaminants were present in the groundwater or
                 attached to particles. The wells where bacteria were detected in these samples were not always
                 wells where bacteria were later detected in groundwater, and included wells that were upgradient,


                                                                 30









                down        ent, deep and within the EDAs, with no consistent location at the sites. Ile most
                com@nly detected bacterial indicator in these samples was C. perfringens, which is naturally in
                tight association with particulate matter in soil and aquatic environments. To help bridge the gap
                between the infrequent detection of indicators in groundwater samples compared to the initial
                samples that contained some soil particulates, soil core samples were taken at selected sites to
                evaluate the presence and transport of fecal indicator bacteria in the subsurface. Soil cores were
                taken between the bottom of the EDA and the watertable to evaluate vertical transport at sites WRH
                and CSL in August 1995 and at sites KDBS and KDBM in October 1995. Soil cores were also
                taken laterally from EDA's, along transects, to evaluate horizontal transport at sites WRH and REH
                in November and December 1995, respectively.

                        Vertical Transport
                        At site WRH C. per                                          5.0 x 103, and 17.0 x 103 MPN/g
                                             firingens was detected at 9.0 x 103
                soil at depths of 31.5, 46, and 55 inches below the ground surface (BGS), respectively (Table 13).
                The lower two depths were frequently saturated with groundwater, i.e., the water table was
                shallower (Figure 24C). Fecal coliforms were not detected in soil samples at any depth at this site.
                At site CSL, fecal coliforms, E. coli, and C. perfringens were detected at 400, 400, and 7,000
                MPN/g soil at a depth of 35 inches BGS (Table 13), a depth. frequently saturated with groundwater
                (Figure 25C). Only C. per
                                            firingens was detected at a depth of 43 inches BGS and only then at
                much lower levels, < 5.0 MPN/g soil.
                        At site KDBS fecal coliforms; and E. coli were detected at equal concentrations of 800 and
                20 MPN/g soil at depths of 29 and 55 inches BGS (Table 13), respectively, compared to typical
                water table depths of >60" BGS (Figure 26D). No fecal coliforms were detected at 42 inches
                below the ground surface. C. perfringens was detected at 29, 42, and 55 inches BGS at levels of
                13.0 x 103 , 13.0 x 103, and 17.0 x 103 MPN/ g soil. At site KDBM no fecal coliforms were
                detected in soil samples taken 33 and 44 inches BGS (Table 13), consistent with the observed deep
                water table (Figure 26C). However, fecal coliforms and E. coU were both detected at equal
                concentrations of 20 MPN/g soil at a depth of 59 inches below the      Iground surface. C. perfiringens
                decreased with depth at site KDBM as levels fell from 50.0 x 103 to 9.0 x 103 to 2.2 x 103 MPN/g
                soil at depths of 33, 44, and 59 inches, respectively.
                        In summary, fecal coliforms and E. coli were detected in soil samples at shallow depths,
                <35 inches BGS, at sites CSL and KDBS at levels >400 MPN/g soil. Fecal coliforms and E. coli
                were also detected at greater depths (>55 inches BGS) at sites KDBS and KDBM at much lower
                levels, 20 MPN/g soil. In general, it appears that fecal coliforms and E. coll may be transported
                vertically at high concentrations to shallow soils, decreasing to extinction in deeper soils (>29-35
                inches BGS) as a result of the treatment processes characteristic of soils and as intended by design
                of the system. The presence of fecal coliforms at deeper soil depths (>55 inches), despite not
                being detected at shallower depths, may result from preferential flow through macropores and root
                channels, or via lateral flow from other areas. The relatively high levels of C. perfringens detected
                at all depths at the various sites reflects survival of cumulative, historical contamination of the
                subsurface by sewage-borne bacteria.

                        Horizontal Transport
                        Soil core samples were taken along transects at sites WRH and REH. At site WRH,
                samples were taken upgradient from the EDA (control), within the EDA (EDA), and at distances of
                1, 3, 9, and 27 feet along a transect downgradient of the EDA edge. Three transects were taken at
                site REH since groundwater monitoring revealed that groundwater moved in several directions at
                this site. No EDA core was or could be taken at site REH, and samples along each transect were
                taken at 1, 3, and 9 feet from the edge of the EDA. At both sites, soil core samples were taken
                from the top foot of the watertable, which was determined by measuring the watertable depth in the
                nearest well, and then using a posthole digger to excavate down to the watertable. Once free water


                                                                   31









                   was reached, the top foot of the watertable was sampled using a split-spoon soil corer.
                           Ile results of the soil core transect at site WRH clearly show that C. perfringens is present
                   at high levels (> 1 x 104 MPN/g soil) below the EDA and in all downgradient samples (Figure 35).
                   C. perfringens levels in EDA and downgradient samples are 1-3 orders of magnitude greater than
                   levels observed in the control sample. The presence of long-lived C. perfringens at high levels,
                   even as far as 27 feet from the EDA, suggests previous sewage-borne contamination of the
                   subsurface. The presence of fecal coliforms and E. coli below the EDA and at 3 and 27 feet
                   downgradient show more recent contamination and suggest significant horizontal transport of all
                   types of indicators. There was no observable trend in levels of C. per ringe with distance away
                                                                                              fi     ns
                   from the PDA while fecal coliforms and E. coli both decreased significantly with distance.
                           ne soil core transects at site REH also showed long-term contamination as evident by the
                   presence of high levels of C. perfringens in soil samples which ranged from I x 104 to nearly I x
                   106 MPN/g soil (Figure 36). There was no clear trend in level of C. per ingens with distance
                                                                                                fir
                   from the EDA along any transect. No fecal coliforms were detected in any of the soil samples at
                   this site. Thus, C. perfringens is similar to nitrate in that it is a conservative tracer of fecal
                   contamination from septic systems. It differs in being more long-lasting, so that it gives a stronger
                   temporal context, along with a spatial context, for determining if fecal contamination has occurred
                   in the subsurface environment at distances away from septic systems and toward surface waters.

                   Septic System Design: 36" Compared to 48" Depth Below Ile EDA to ESHV;T
                           Four sites, where the bottom of the EDA could be determined from soil coring and where
                   actual functioning systems were know to exist, were analyzed to evaluate the effects of vertical
                   separation between the bottom of the EDA and the watertable on microbiological groundwater
                   quality. These four sites were WRH, CSL, KDBM, and KDBS.
                           At site WRH groundwater elevations plotted over the sampling period show that the
                   watertable fell from approximately 1.25 to 3.0 feet below the bottom of the EDA from March to
                   August 1995 (Figure 24C). A sharp rise in the watertable to the bottom of the EDA occurred in
                   November, 1995 and fluctuated within roughly one foot below the bottom of the EDA thereafter.
                   Groundwater elevations at site CSL show that the watertable fell from approximately 0.5 to 2 feet
                   below the bottom the EDA from February to August, 1995 (Figure 25C). The watertable rose
                   sharply after August, 1995 and peaked at approximately I foot above the bottom of the EDA in
                   February, 1996 and then gradually decreased to roughly I foot below the bottom of the EDA in
                   June, 1996. At site KDBM groundwater elevations slowly dropped from approximately 3 to 5.5
                   feet below the bottom of the EDA from March to August, 1995 (Figure 26C). After August, 1995
                   the watertable rose sharply to roughly 3 feet below the EDA in February, 1996 and then slowly
                   dropped to 3.5 feet below the EDA in May 1996. The watertable depth below the EDA at this site
                   remained at about 4 feet below the bottom of EDA from March to May, 1995 and then dropped to
                   approximately 6.5 feet below the EDA in August, 1995. The watertable, increased after August,
                   1995 to roughly 3 feet below the bottom of the EDA in February, 1996 and then gradually
                   decreased to 4 feet below the EDA in May, 1996. Thus, no site has a high water table depth
                   (HWT) that is >48", which occurred on only two occasions at the four sites, and all sites were
                   installed at less than the required 48" above HWT. The data only allow evaluation of the relative
                   degree of treatment when HWT is >36" or <36".
                           Microbiological data from the EDA wells (WRH- 1, 2, and 5; CSL-4; KDBM-3, and
                   KDBS-4) were grouped according to watertable depths at the time of sampling (Table 14).
                   Groupings, based on depth of the watertable below the bottom of the EDA were as follows: <36",
                   236" but <48", and 2tO". The @t48" category contained only two samples while the <36" and
                   236" but <48" categories had 28 and 11 samples, respectively. None of the indicators were
                   detected (ND= not detected) in samples in the >48" category. As previously described, C.
                   perfringens behaves differently than the other indicators. The C. perfringens data for this study
                   further illustrate this point and should be separately discussed. For the other indicators in the 36-


                                                                       32










               48" category, bacteria were detected only in two of eleven samples, ranging from ND-75/100 ml.
               Conversely, indicators in the <36" category were detected in 20 of 28 samples. The indicator
               concentrations ranged up to 2130, 500 and 8 100/100 ml for FC, Ec and enterococci, respectively.
               Thus, levels of all indicators were highest in the <36" depth, with much lower levels in the range
               of >36" but <48", and lowest for the water table at >48" below EDAs. ANOVA was conducted to
               evaluate different treatments (watertable depth groupings) by fecal indicator bacteria (fecal
               coliforms, E. coli, enterococci, and C. perfringens) measured in well samples (Table 14). ND data
               were given values ranging from 0.24-4.9/100 ml, depending on the detection limit which was a
               function of sample water volume analyzed (Table 14). All data were rank-transformed. ANOVA
               showed that there were no statistical differences between any of the 3 watertable depth categories
               and levels of E. coli, enterococci, and C. perfringens found in well samples taken at those depths.
               However, there was a significant difference in geometric mean fecal coliform levels at <36"
               compared to 36-48". Despite some of the other large differences in mean values for indicators, the
               data were variable enough that statistical differences were typically not seen.
                       The higher frequency of detection and higher concentrations observed for samples collected
               when the groundwater was <36" below the EDA illustrate the need for adequate depth between the
               EDA bed and groundwater table. The low frequency and typically low concentrations of bacteria
               detected when the water table was >36" suggests that this depth may be adequate for treating
               septage. However, the sample on 3/7/95 had elevated bacterial levels and is of concern. On that
               date, the water table was just barely >36", and other wells at the site had much more elevated water
               table depths (Figure 26C). Recognizing that water depths were measured only when samples were
               taken ahd that continuous measurements would be needed to determine how high the watertable got
               to during that time period, it is conceivable that the water table could have been higher, even <36"
               below the EDA, just before the sample was taken on 3n195, and that the elevated bacterial levels
               could have reflected those conditions. Evidence that may support this are the elevated water tables
               at the other wells at that site on that date (Figure 26C), and the fact that 0.7" of rain fell (Durham
               rainfall data) within a 48 hour time period only 7 days before at a time when spring snowmelt was
               just beginning. Ile day before, on 3/6/95, another 0.21" rain fell. During this time, temperatures
               were rising above freezing, suggesting that substantial rainfall and snowmelt could have been
               affecting water table depths at that time. Thus, the elevated levels on that date could have reflected
               higher water table conditions. Without confirmation of this, our results suggest that a 36" distance
               between the water table and the bottom of the EDA may lead to, albeit infrequent, bacterial
               contamination of groundwater. There are no standards by which to judge how frequent and at
               what levels groundwater contamination is a problem, but assuming no contamination is desirable,
               then 36" is not adequate.
                       One important question is how the findings of this study will relate to how septic systems
               are designed and installed. If ESHWT is based on mottling, as discussed in Section XX, then an
               underestimation of actual HWT is incorporated into the vertical placement of the system. The
               KDBM and KDBS sites are probably good examples of well-designed sites that actually had HWT
               at - 36", and not the design-required 48". Both of these systems worked quite well, especially
               compared to the systems with higher HWT. Further work is needed on systems that have HWT
               levels 36-48" and >48" below EDAs to determine what level of treatment/contarnination occurs
               with distances. The data would then need evaluation based on defined criteria on what level of
               contamination frequency and concentration are 'acceptable'. Then rules on depths below EDAs to
               HWT, along with how to assess ESHWT, can be accurately defined.

                                                            DISCUSSION

                       The organization of the following discussion of the results will be according to the
               important questions for which the study was designed to address. These are as follows:



                                                                   33









                         1.) Are contaminants from septic systems leaching into the groundwater and contaminating
                 surrounding surface waters?
                         2.) Is there evidence of transformations and treatment processes that reduce groundwater
                 pollution below any effluent disposal areas, and what are those environmental and system
                 conditions?
                         3.) What is the distance between the bottom of the EDA and the seasonal high-water table
                 that is necessary for adequate contaminant treatment?

                         The first question relates to whether contaminants are leaching into the groundwater. To
                 address this, the results were evaluated to determine what evidence there was of vertical transport
                 of both bacteria and nutrients from the bottoms of EDAs to the water table. Data on nutrient and
                 bacterial concentrations and incidence for groundwater wells under and around EDAs, lysimeter
                 data for unsaturated areas under EDAs, and groundwater table depths were analyzed. The study
                 sites had a whole range of types of systems, including one well-designed system, three other actual
                 drainage fields, one chamber system and the rest are make-shift systems or non-systems. It is
                 important to know how deep the groundwater table/level is because saturated conditions are not
                 conducive to treatment of contaminants. The groundwater conditions observed included some sites
                 where groundwater inundates the EDA on a regular basis, other systems where occasional
                 inundation occurred, and others where the water table was always well below the bottom of the
                 EDA. Some of the latter sites have make-shift systems, and only one site had a definable EDA that
                 was without a high water table.
                         Ile results relative to vertical, or gravity-driven, transport of contaminants to the
                 groundwater showed some trends. Generally, evidence of vertical contaminant transport in wells
                 below EDAs was based on the elevated concentrations observed relative to the background
                 concentrations in the upgradient wells. The greater the distance between the bottom of the EDA to
                 the water table, the smaller the impact to the groundwater quality, i.e., the lower the contaminant
                 concentrations in groundwater. Phosphate is less likely to reach the groundwater compared to
                 nitrogen species, as it reacts with soil. Ammonium also reacts  -with soil, while nitrate, which does
                 not adsorb to soil, is most readily leached to the groundwater. The contaminants tended to be
                 present in soil water at relatively high levels where unsaturated zones existed, slowly leaching into
                 groundwater or more rapidly upon inundation with rising water tables. Bacteria were also found at
                 consistent and relatively high concentrations below EDAs, especially in areas where salt water
                 influence was minimal. For both nutrients and bacteria, contaminants did not appear to be
                 transported to deeper groundwater. It appears that the contaminants vertically transported to the
                 top of the groundwater tended to accumulate there and did not continue to be transported in
                 significant quantities to deeper groundwater levels. Thus, contaminants do leach into the
                 groundwater below EDAs and accumulate at the top of the water table.
                         The next question is whether contaminants are laterally transported to surface waters. This
                 is more tricky to address compared to the first question, where wells located in defined areas
                 (below EDAs) can be studied. In contrast, to determine if contaminants are transported to surface
                 waters, wells need to be located for sampling where they will intercept the effluent plume in the
                 groundwater. Detailed information like hydraulic conductivity and long-term monitoring of
                 groundwater flow were determined during the study, and it was not available for helping to site
                 wells when test wells were initially installed. A positive result is easily interpreted, a negative
                 result begs the question of whether the plume was missed. The elevated levels of nutrients and
                 bacteria found in the surface waters around Seabrook suggest that sources of fecal contamination
                 exist. There are no other apparent sources in the mostly residential study area other than the
                 houses and their septic systems. Thus, septic systems were suspected to be the main source of
                 contamination.
                         The soils in the study areas around the EDAs are generally fine-grained sands. Sandy soils
                 tend to have little structure, and wells in this matrix tend to accumulate sand particles. Because of


                                                                   34









                this, water samples collected from the wells typically had substantial amounts of suspended sand.
                In initial samples, the amount of sand was inconsistent, even though we found that a majority of
                bacteria detected in the samples were attached to the particles. To help standardize the sampling
                procedure, to make nutrient analyses possible, and to give more consistent and quantitative (albeit,
                more conservative) estimates of bacterial concentrations, the eventual sampling procedure
                incorporated a prefiltration step to remove particles. The reasoning was that the concern was not
                really to determine the presence of bacteria in the wells, rather, the concern was their transport to
                surface waters. As such, the cells that were not attached to particles were suspected to be those
                that were being transported in the groundwater. Thus, the data reflect findings for free-living
                bacterial cells, and are quite conservative estimates of groundwater contamination levels, probably
                10-1000x lower than the total cells. This, coupled with the difficult task of locating bacterial
                effluent plumes, made it difficult to measure bacterial contaminants in groundwater.
                        The concentrations of bacteria in water samples from wells around the EDA were
                substantially lower than those from below the EDA. This implied that the bacteria were being
                reduced in concentration as they were transported laterally away from the EDA. The possible
                mechanisms for this include impingement within small pores in the soil matrix, die-off, adsorption
                to surfaces, and dilution. We observed inconsistent detection and low concentrations of bacteria in
                wells at distances >1 meter away from the EDAs, including new wells located off the residential
                properties closer to surface waters. The exception was a site on River St., where determining the
                location of actual EDAs was a challenge. One striking observation was the low concentrations of
                C. perfringens, a common fecal contaminant that tends to stick to particles, as observed in initial
                samples that included particulate matter. This conservative approach to sample processing was
                probably not allowing detection of bacteria at reduced concentrations in groundwater at distances
                from the EDA. Soil cores were collected at two sites at depths above and below the water table to
                determine if the bacteria were actually attached to particles, especially at this interface between
                saturated and unsaturated soil (the water table). The results of that study showed high levels of C.
                perfringens in all samples, with evidence of transport of fecal coliforms and enterococci at
                relatively long distances as well. This confirmed that fecal-borne bacteria fi-orn septic systems
                were being transported away from septic systems toward surface waters at relatively long (9
                meters) distances and at significant concentrations.
                        The strongest evidence that contaminants from septic systems were being transported
                laterally away from septic systems was the relatively high levels of nitrate detected in some distant
                wells. Relatively high levels of nitrate were detected in wells as far as 20 meters from the edge of
                the EDAs. Thus, elevated levels of nitrate were evidence that part of the effluent plume in the
                subsurface had been detected because not all downgradient wells had elevated nitrate levels, and
                were therefore out of the plume. Phosphate was also apparently transported away from EDAs in
                the River St. area where the high density of houses and EDAs probably have lead to saturation of
                phosphate in the relatively non-reactive sandy subsurface soils. An observation made at River St.
                was that groundwater flow changed directions throughout the year, and sometimes daily, resulting
                in the smearing of nutrients in groundwater wells supposedly located in both upgradient and
                downgradient directions. In lower density areas, phosphorus was not laterally transported.
                        Use of the MPN method for enumerating fecal indicators in samples that were not
                prefiltered are a less conservative reflection of bacterial presence in the different wells sampled. In
                fact, bacteria were almost always detected, and at higher than background levels, in samples
                collected from wells and not prefiltered. Because the bacteria are not freely suspended in the
                water, this evidence reflects either recent or historical transport to the subsurface area around all of
                the wells. Saltwater tends to enhance the adsorption of bacterial cells to surfaces, so wells at sites
                affected by saltwater had even less bacteria detected in prefiltered water (example: REH).
                        The adsorption of bacteria to soils surfaces is just one complication in explaining the field
                observations related transport of bacteria through the subsurface environment to surface water.
                The subsurface environment is quite complex both spatially and temporally. The transport of


                                                                    35









                 bacteria through the pore spaces of the unsaturated and saturated soil matrices is a tortuous
                 process. Pores of different diameters affect both the transport velocity and the degree of interaction
                 between cells and surfaces. The degree of saturation with water affects the amount of available
                 water for bacteria to become suspended within and the depth of water films on surfaces of
                 unsaturated soils affects motility and survival. As water moves through the soil matrix, the
                 suspended bacterial contaminant concentrations will change as cells become dispersed into pores.
                 Groundwater moves at slow rates and will laterally disperse cells. Seasonal environmental and
                 tidal factors and wastewater loading rates to septic systems can affect the vertical movement of
                 water over time as well. As water tables drop, cells may be left behind in upper horizons of the soil
                 that become unsaturated and potentially less conducive to survival. When water tables rise,
                 bacterial cells typically in the surface film will be forced through pores into upper horizons, while
                 others may be left behind in deeper groundwater conditions. All of these different subsurface
                 conditions relative to groundwater depth can affect the survival of indicator and pathogenic
                 bacteria, and the time spent under unfavorable or favorable conditions will determine the degree of
                 bacterial die-off. Factor in varying conditions in loading, seasonal environmental conditions,
                 variable and changing conditions in septic system drainage beds, tidal effects on groundwater
                 flow, discontinuous hydraulic conductivity properties, and a myriad of other factors, and the
                 explanations for field observations, especially the infrequent detection and low numbers of bacteria
                 in wells downgradient from EDAs, become difficult. T'hus, the fact that any samples showed
                 bacteria in downgradient wells should be considered significant and evidence supporting the
                 contamination of surface water via groundwater flow from septic systems.
                         The use of C. perfringens as a bacterial indicator of fecal-bome microbial contaminants in
                 groundwater is a useful tool for determining if and where contamination has occurred. It is similar
                 to nitrate because it can be considered a conservative tracer, i.e., relatively non-transformed, in the
                 subsurface. Its long-term existence makes it conservative in a temporal context, while the non-
                 reactivity of nitrate with soil particles makes it conservative on a spatial scale. The puzzlement that
                 results from inconsistent results, as described above, where surface water contamination levels are
                 higher than groundwater levels of bacteria around septic systems, can be counter-acted by
                 considering the C. per
                                        firingens data. Generallyj high levels were detected in subsurface locations
                 that have been exposed to laterally-transported microbial contamination. Use of fecal coliforms,
                 enterococci, or other nonspore-forming bacteria as sole indicators in this study could have lead to
                 incorrect conclusions about the transport of bacterial contaminants. Use of the four different
                 indicators in this study allowed for multi-dimensional interpretation of results. In particular, the
                 observed high values of C. perfringens at distances downgradient fi-orn EDAs increases the
                 significance of the less frequent and lower concentrations of the other indicators.
                         Ile results showed evidence of transformations of nutrients and bacteria in the subsurface
                 environment below the EDAs. The greater the distance below the EDA to the water table, the
                 greater extent of nitrification was evident. In sites where the water table was high, ammonium was
                 much more commonly measured at high concentrations, while nitrate became essentially the sole
                 nitrogen contaminant in wells that included deeper unsaturated layers below the EDAs. In soils
                 with high seasonal high water tables, ammonium may be transported to groundwater, but appears
                 to be rapidly changed to nitrate in wells away from the EDA. There appeared to be some evidence
                 of denitrification occurring in the higher/shallower levels of the groundwater near to some EDAs,
                 as the total dissolved inorganic nitrogen (DIN=amrnonium, nitrite, nitrate) concentrations were
                 substantially decreased compared to EDA wells. Anurionium that was leached into the upper
                 groundwater levels was apparently nitrified, as little ammonium was measured in paired deeper
                 wells. In unsaturated zones, DIN concentrations were not reduced while much of the ammonium
                 was nitrified. When the water table was high enough to inundate the bottoms of EDAs,
                 ammonium accumulated in the groundwater. Eventually, it appeared that the nitrifying bacteria
                 adapted to new conditions and nitrification resumed under these conditions.
                         Phosphate is not typically transformed under conditions found in this study, and bacterial


                                                                   36









                die-off was not investigated. However, it was obvious from the results that both contaminants
                were transformed in the sense that both were attenuated by the soil matrix when the water table was
                not too high.
                        The depth below an EDA to seasonal high groundwater is a question that needs more work.
                It appears that bacteria were found in groundwater rarely and at low concentrations at two sites
                where the seasonal high water table was < 36" below the EDA only once out of 24 samplings.
                Other sites, where the seasonal high water table was typically < 36' below the EDA had more
                frequent incidence and higher concentrations of bacteria. As described above, nitrification may not
                occur in soils below EDAs when the groundwater level is too high. Preliminary interpretation of
                results appears to support the possibility using a shallower depth (36-48') than the presently
                required depth of 48' below the bottom of an EDA to the top of the water table. 'Me final
                interpretation of the results relative to this question is based on only a few sites, and further studies
                on this question under a wider range of soil conditions may be required to adequately answer this
                question.

                                                           CONCLUSIONS

                        T'he sites selected for study were not uniform in anyway that would facilitate a systematic,
                scientific assessment of factors associated with the effectiveness of subsurface sewage treatment.
                However, the selected sites probably are a reasonable reflection of actual systems in older coastal
                developed areas. It is unfortunate that a wider range of soil types could not be included in this
                study. However, again, the sites selected were limited to sites within Seabrook and in close
                proximity to tidal or tributary surface waters, thus excluding many areas that could represent a
                wider range of coastal New Hampshire soils. In the final analysis, it is amazing to find so many
                willing participants for such a study.
                        Despite the observed changes in groundwater flow direction that complicated the location of
                distinct contaminant plumes at some sites, it is apparent that most of the study sites have relatively
                contaminated groundwater. Even RB, which has not been occupied for a few years so that the
                EDA has not been used, has elevated levels of phosphate in groundwater, even out near the marsh
                edge. The contaminated groundwater appears to have some impact on adjacent surface waters,
                especially in high density housing areas. The areas of highest housing density are the River St.
                sites and FDC, which is at the edge of an older high density housing development. In addition,
                WRH is located next to and downgradient from an elementary school on septic systems and
                numerous other houses, while KDB is at the end of a new development with a relatively high
                density of houses and associated mounded effluent disposal areas. All of these sites are in close
                proximity to surface waters, and the loading rate of nutrients, especially nitrate, measured in wells
                probably exceeds the capacities of the remaining or nonexistent riparian zones to effectively treat
                contaminants.
                        The bacterial contaminants were not transported away from EDAs consistently or in high
                quantities. Bacteria are not as mobile as nitrate, and are probably more tightly associated with soil
                particles. However, in soil core and initial groundwater samples that included some particulate
                matter, fecal-bome bacteria were detected in wells away from EDAs at high concentrations,
                evidence of recent or historical transport to those areas by some mechanism. The method adopted
                for routine sampling of wellwater for bacteria is a conservative approach that excludes most
                particle-associated bacteria.







                                                                   37











                                                          REFERENCES

                        Alhajar, B. J., Harkin, J. M., and Gordon Chesters, 1989, Detergent Formula and
                 Characteristics of Wastewater in Septic Tanks, J. Wat. Poll. Cont. Fed., 61:5:605-613.
                        Bicki, T. J., R. B. Brown, M. E. Collings, R. S. Mansell and D. F. Rothwell, 1984,
                 Impact of On-site Sewage Disposal Systems on Surface and Ground Water Quality. Report
                 LC170, Florida Dept. of Health and Rehabilitative Services, Tallahassee, Fla.
                       Brandes, M., 1978, Characteristics of Effluents from Gray and Black Water Septic Tanks,
                 J. Water Poll. Control Fed., 50:2547-2559.
                       Brooks, D., and Irina Cech, 1979, Nitrates and Bacterial Distribution in Rural Domestic
                 Water Supplies, Wat. Res., 13:33-41.
                       Brown, K. W., Wolf, H. W., Donnelly, K. C., and J, F. Slowey, 1979, The Movement
                 of Fecal Coliforms and Coliphages below Septic Lines, J. Env. Qual., 8:1:121-125.
                       Brown, K. W., Donnelly, K. C., Thomas, J. C., and J. F. Slowey, 1984, The Movement
                 of Nitrogen Species Through Three Soils Below Septic Fields,        J. Environ. Qual., 13:3:460-
                 465.
                       Canter, L. W., and Knox, R., 1985, Septic Tank System Effects on Ground Water Qua WI,
                 Lewis Publishers, Inc., Chelsea, Michigan.
                       Chen, M., 1988, Pollution of Ground Water by Nutrients and Fecal Coliforms from
                 Lakeshore Septic Tank Systems, Water, Air, and Soil Poll., 37:407-417.
                       Clark, E. H., Haverkamp, H. H., and W. Chapman, 1985, Eroding Soils: The Off-Farm
                 Impacts, The Conservation Foundation, Washington, DC.
                       Cogger, C., and B. L. Carlile, 1984, Field Performance of Conventional and Alternative
                 Septic Systems in Wet Soils, J. Environ. Qual., 13:1:137- 142.
                       Cogger, C., 1988, On-site Septic Systems: The Risk of Groundwater Contamination, J. of
                 Env. Health, 51:1:12-16.
                       Cogger, C., Hajjar, L. M., Moe, C. L., and M. D. Sobsey, 1988, Septic System
                 Performance on a Coastal Barrier Island, J. Environ. Qual., 17:3:401-408.
                       Craun, G. F., 1985, A Summary of Waterbome Illness Transmitted through Contaminated
                 Groundwater, J. Environ. Health, 48:3:122-127.
                       Davies, C.M., J.A.H. Long, M. Donald and N.J. Ashbolt. 19995. Survival of fecal
                 microorganisms in marine and freshwater sediments. Appl. Environ. Microbiol. 61: 1888-1896.
                       Duda, A. M., and K. D. Cromartie, 1982, Coastal Pollution from Septic Tank Drainfields,
                 J. Env. Eng. Div., 108:1265-1279.
                       Gonzalez, J.M., J. Iriberri, L. Egea and I. Barcina. 1992. Characterization of culturability,
                 protistan grazing, and death of enteric bacteria in aquatic ecosystems. Appl. Environ. Microbiol.
                 58: 998-1004.
                       Hagedorn, C., Hansen, D. T., and G. H. Simonson, 1978, Survival and Movement of
                 Fecal Indicator Bacteria in Soil under Conditions of Saturated Flow, J. Environ. Qual., 7:1:55-59.
                       Hagedorn, C., MCCoy, E. L., and T. M. Rahe, 198 1, The Potential for Ground Water
                 Contamination from Septic Effluents, J. Environ. Qual.,      10:1:1-8.
                       Hileman, B., 1990, Alternative Agriculture, Chem. and Eng. News, 68:26-40.
                       Hill, D. E. and B. L. Sawhney, 198 1, Removal of Phosphorus from Waste Water by Soil
                 Under Aerobic and Anaerobic Conditions, J. Environ. Quality, 10:3:401-405.
                       Hvorslev, M. J., 1951, Time lag and soil permeability in groundwater observations, U.S.
                 Army Corps Engrs. Waterways Exp. Sta. Bull. 36, Vicksburg, Miss.
                       Jones, R. A., and G. F. Lee, 1979, Septic Tank Wastewater Disposal Systems as
                 Phosphorus Sources for Surface Waters, J., Water Poll. Control Fed., 51:2764-277
                       Jowett, E. C., and Michaye L. McMaster, 1995, On-Site Wastewater Treatment Using
                 Unsaturated Absorbent Biofilters, J. Env. Quality, 24:86-95.
                       Laak, R., 1974, Relative pollution strengths of undiluted waste materials discharged in


                                                                 38









               households and the dilution water used for each. In J. H. T. Winneberger, ed., Manual of
               Greywater Treatment Practice. Ann Arbor Science, Ann Arbor, MI, pp.68-78.
                      Lapointe, B. E., O'Connell, J. D., and George S. Garrett, 1990, Nutrient couplings
               between on-site sewage disposal systems, groundwaters, and nearshore surface waters of the
               Florida Keys, Biogeochemistry, 10:289-307.
                      Magdoff, F. R., D. R. Keeney, J. Bouma, and W. A. Ziebell, 1974, Columns representing
               mound-type disposal systems for septic tank effluent: H. Nutrient transformations and bacterial
               populations. J. Environ. Qual. 3:228-234
                      Mathsoft, Inc., 1994, ADEPT (A Program for Aquifer Data Evaluation) for the Mathcad@
               environment, C.H.E.S.S. Inc., Bethesda, MD.
                      Morrill 111, G. B, and L. G. Toler, 1973, Effect of Septic-Tank Wastes on Quality of
               Water, Ipswich and Shawsheen River Basins, Ma@sachusetts, J. Research U.S. Geol. Survey,
               1:1:117-120.
                      Netter, R., Stubner, E., Wilder, P. A., and Ivan Sekoulov, 1993, Treatment of Septic
               Effluent in a Subsurface Biofilter, Wat. Sci. Tech., 28:10:117-124.
                      New Hampshire Estuaries Project (NHEP), March 1995, Governer's Nomination to the
               National Estuary Program, p2-3 1.
                      New Hampshire Fish and Game Department (NHFGD), Marine Fisheries Division, 1991,
               Coastal Shellfish and Water Quality Progress Report, p 16.
                      New Hampshire Department of Environmental Services (NHDES). 1995. Coastal
               Watershed Status report. New Hampshire Department of Environmental Services, Concord, NH.
                      New Hampshire Department of Environmental Services (NHDES). 1994. Preliminary
               report on research needs. Presented to the University of New Hampshire, March, 1994. New
               Hampshire Department of Environmental Services, Concord, NE.
                      Paul, J. H., Rose, J. B., Jiang, S., Kellogg, C., and Eugene A. Shinn, 1995, Occurence
               of Fecal Indicator Bacteria in Surface Waters and the Subsurface Aquifer in Key Largo, Florida,
               Applied and Env. Microbiol., 61:6:2235-224 1.
                      Pommepuy, M., J.F. Guillaud, E. Dupray, A. Derrien, F. LeGuyader and M. Cormier.
               1992. Enteric bacteria survival factors. Wat. Sci. Tech. 25: 93-103.
                      Postma, F. B., Gold, A. J., and George W. Loomis, 1992, Nutrient and Microbial
               Movement from Seasonally-Used Septic Systems, J. Environ. Health, 55:2:5-10.
                      Reneua, R. B. Jr., and D. E. Pettry, 1975, Movement of Coliform. Bacteria from Septic
               Tank Effluent through Selected Coastal Plain Soils of Virginia, J. Environ. Qual., 4:1:41-44.
                      Reneua, R. B. Jr., and D. E. Pettry, 1976, Phosphorus Distribution from Septic Tank
               Effluent in Coastal Plain Soils, J. Envirn. Qual, 5:1:34-39.
                      Reneua, R. B. Jr., Hagedorn, C., and M. J. Degen, 1989, Fate and Transport of Biological
               and Inorganic Contaminants from On-Site Disposal of Domestic Wastewater, J. Environ. Qual.,
               18:135-144.
                      Robertson, W. D., Cherry, J. A., and E. A. Sudicky, 1991, Ground-Water Contamination
               from Two Small Septic Systems on Sand Aquifers, Ground Water, 29:1:82-92.
                      Shiaris, M.P., A.C.Rex, G.W. Pettibone, K. Keay, P. McManus, M.A. Rex, J. Ebersole
               and E. Gallagher. 1992. Distribution of indicator bacteria and Vibrio parahaemolyticus in sewage-
               polluted intertidal sediments. Appl. Environ. NEcrobiol. 53: 1756-1761.
                      Small Flows Journal, 1996, Census shows onsite systems are here to stay, 10: 1:4.
                      Solic, M. and N. Krstulovic. 1992. Separate and combined effects of solar radiation,
               temperature, salinity and pH on the survival of faecal coliforms in seawater. Mar. Pollut. Bull. 24:
               411-416.
                      Sorensen, S.J. 1991. Survival of Escherichia coli K12 in seawater. FEMS Microbiol.
               Ecol. 85: 161-168.
                      Stewart, L. W., and R. B. Renuea, Jr., 198 1, Spatial and Temporal Variation of Fecal
               Coliforin Movement Surrounding Septic Tank-Soil Absorption Systems in Two Atlantic Coastal


                                                                39









                Plain Soils, J. Environ. Qual., 10:4:528-531.
                      Tchobanoglous, G., F. L. Burton, and Metcalf and Eddy, Inc. 1991. Wastewater
                Engineering: Treatment, Disposal, and Reuse. McGraw-Hill Book Co., Inc., New York, N. Y.
                1334 pp.
                      U.S. Environmental Protection Agency (USEPA). 1991. Buzzards Bay Comprehensive
                Conservation and Management Plan, Volume 1: Management Recommendations and Action
                Plans. USEPA, Washington, DC.
                      USEPA, 1986, Septic Systems and Ground-Water Pollution: A Manager's Guide and
                Reference Book, Office of Groundwater Protection, Washington, DC 20460.
                      USEPA, 1984, North Carolina barrier islands wastewater management. Environmental
                Impact Statement 904/9-84-117. USEPA, Atlanta, GA.
                      USEPA, 1977, Alternatives for small @wastewater treatment systems, USEPA Rep. 625/4-
                77-011, USEPA, Washington, D. C..
                      Wilhelm, S. R., Schiff, S. L., and John A. Cherry, 1994, Biogeochemical Evolution of
                Domestic Waste Water in Septic Systems: 1. Conceptual Model, Ground Water, 32:6:905-916.


































                                                           40







                                                       TABLE 1


                     TYPICAL VALUES OF NUTRIENT AND MICROBIAL CONSTITUENTS IN
                     SEPTIC TANK EFFLUENT AS REPORTED IN THE UTERATURE


                                                    MEAN
                       CONTAMINANT          CONCENTRATION                       AUTHOR
                       Total-N (mg/L)               29.8                   Brown et al., 1984
                                                    40                   Canter and Knox, 1985
                                                    101                    Postma et al., 1992


                       NH4-N (mg/L)                 59                     Alhaijar et al., 1989
                                                    30                   Canter and Knox, 1985
                                                    28                     Cogger et al., 1988
                                                    51.2              Jowett and McMaster, 1995
                                                    60-90                    Netter, 1993
                                                    30-59                Robertson et al., 1991


                       N03-N (mg/L)                 0.2                    Alhajjar et al., 1989
                                                    0.22                     Brandes, 1978
                                                    <0.5                   Cogger et al., 1988
                                                  0.1-1.0                Robertson et al., 1991


                       Total-P (mg/L)               14                     Alhajjar et al., 1989
                                                    18.6                     Brandes, 1978
                                                    15                   Canter and Knox, 1985
                                                 8.0-12.0                    Netter, 1993
                                                    13                     Postma et al., 1992


                       P04-P (mg/L)                 1 1                    Alhajjar et al., 1989
                                                    15.2                     Brandes, 1978
                                                    6.2                    Cogger et al., 1988
                                                 5.5-11.0              Reneau and Pettry, 1976
                                                 8.0-13.0                Robertson et al., 1991


                       total coliforms           3.OOE+08                  Alhaijar et al., 1989
                         (#/100 ml)              2.60E+06                    Brandes, 1978
                                                 6.40E+06            Jowett and McMaster, 1995
                                                 1.10E+07              Reneau and Pettry, 1975

                       fecal coliforms           2.1 OE+07                 Alhajjar et al., 1989
                         (#/100 m I)             1.08E+06                    Brandes, 1978
                                                 1.11 E+06                 Brown et al., 1979
                                                 4.20E+05                Hagedorn et al., 1981
                                                 1.80E+06             Jowett and McMaster, 1995
                                                 1.30E+06              Reneau and Pettry, 1975







     TABLE 2: SEABROOK STUDY SITES: SYSTEM CHARACTERISTICS.


                                              SYSTEM                      DOWN
            SYSTEM    STATE         OF       IN FILL OR   DEPTH TO      GRADIENT
      SITE   AGE     APPROVED OCCUPANTS NATURAL SOIL      MOTTLING     TOPOGRAPHY


                   Adjacent to tidal marshes or beach: River Street
      REH    10+        No          1          In Fill      2011       marsh/creek
      RET     2+        No          2          In Fill      201f          marsh
       FB    30+        No        1 to2      Nat. Soil      1711          marsh
       Ffi    5         ?           2        Nat. Soil                    beach
       FP    40+        No          1        Nat. Soil                    beach
       FC     8+       Yes        2 to3      Fill/Raised                  beach


                   Adjacent to tidal marshes: In Town
       WRH    7         No          2        Fill/Raised    2810          marsh
      CSL     37        No          1        Nat. Soil      3011          marsh
     KDBS     7        Yes          4        Fill/Raised    2611          marsh
     KDBM     7        Yes        4 to5      Fill/Raised    26            marsh






       TABLE 3: Soils and subsurface characteristics of study sites.

                                              DISTANCE to            LIMITATIONS of             DEPTH TO           RANGE IN H20         RANGE IN
                         SLOPE of          POORLY DRAINED               SOILS for          TRENCH BOTTOM TABLE DEPTH                     SALINITY
            SITE             EDA            SOILS from EDA          SEPTIC SYSTEMS                (BGS)                 (BGS)              (BGS)

                                         Adjacent to tidal         marshes or beach: River Street
            REH            0-3%            10' to very poorly             SEVERE              undetermined           0.82-2.44'            0-20.5
            RET            0-3%               75'  to poorly            undefined             undetermined            0.0-4.77'            0-4.0
           FE              0-3%            30' to  very poorly            SEVERE              undetermined           3.06-4.65'          3.8-31.0
           RH          0-3%/8-15%          85' to  very poorly          undefined             undetermined           6.41-7.55'          2.0-20.5
           FP          0-3%/8-15%          90' to  very poorly          undefined             undetermined           6.75-7.98'          3.0-21.0
           IC          0-3%/8-15%          70' to  very poorly          undefined             undetermined           4.30-7.52'          2.0-28.0

                                         Adjacent to tidal marshes: In Town
           M-1         0-3%/3-8%              50' to poorly             undefined              2.42' (29")            3.0-4.64'            0-0.3
           CSL             0-3%               60' to poorly               SEVERE               2.17' (26")           1.95-5.14'            0-0.9
         KDBS         25-35%/0-3%            100' to poorly               SEVERE               2.5'    (30")          5.57-8.4'            0-0.8
         KDBIVI       25-35%/0-3%            1 00' to poorly              SEVERE               2.08'   (25-)         5.73-8.47'            0-0.5

       BGS: defined as "below ground surface".
       ppt: defined as "parts per thousand".
       undefined: indicates soils where limitations were not defined by county soil survey.
       undetermined: indicates sites where EDA could not be cored to determine depth to trench bottom.







      TABLE 4: SEABROOK STUDY SITES: SUBSURFACE CHARACTERISTICS.


                       EDA           SEPTIC                        DOWN             SEPTIC                                DISTANCE to
                       SOIL          SYSTEM                      GRADIENT           SYSTEM                             POORLY DRAINED
          SITE      SYMBOL LIMITATIONS SLOPE                         SOIL        LIMITATIONS            SLOPE           SOILS from EDA


                                Adjacent to tidal marsh or beach: River Street
          FEH          1 OOA             ?            0-3%       1 OOA/797A         SEVERIE_            0-3%           10' to  very poorly
          FET          1 OOA             ?            0-3%          1 OOA               ?               0-3%              75'  to poorly
          FB           1 OOA             ?            0-3%       1 OOA/797A         SEVERE              0-3%           30' to  very poorly
          FH           300A              ?            0-3%         30OA/C               ?           0-3%/8-15%         85' to very poorly
          FP           300A              ?            0-3%         30OA/C               ?           0-3%/8-15%         90' to very poorly
          FC           300A              ?            0-3%         30OA/C               ?           0-3%/8-15%         70' to  very poorly

                                 Adjacent to tidal marshes: In Town
          WFH          1 OOA             ?            0-3%         1 OOA/B              ?            0-3%/3-8%            50'  to poorly
          CSL          26A           SEVERE           0-3%           313A           SEVERE              0-3%              60'  to poorly
          KDBS         299A              ?            0-3%       299E/313A          SEVERE         25-35%/0-3%            100' to poorly
          KDBIVI       299A              ?            0-3%       299E/313A          SEVERE         25-35%/0-3%            100' to poorly

                 JISOIL DESCRIPTION

          26A      WINDSOR: Very deep, excessively drained sandy loam/loamy sand/sand
                   severe septic system limitalon-poor filter


          100      LIDORTHENTS: wet substratum:
                   poorly drained sandy loam filled w/moderate well drained sandy loam/sand fill
                   or granular fill/black loamy sand over saturated wetland


          299      UDORTHENTS: smoothed:
                   well drained smoothed sandy loam filled over w/ loamy fill


          300      UDIPSAMMENT:
                   excessively drained excavated and eolian sand


          313      DEERFIELD:
                   deep moderately well drained sandy loam/loamy sand/sand
                   severe septic system limitation-wetness, poor filter

          497      PAWCATUCK
                   very deep, very poorly drained saturated hemic materials/fsl/ls on tidal marsh fringe
                   severe septic system limitation-ponding, poor filter


          797      MATUNUCK:
                   tidal marsh, flooded at high tide, very poorly drained saturated organic fibers/sand
                   severe septic system limitation










               Table 5. Seabrook Well Statistics Summary
                      Well            Total Well Screened Interval Depths BGS                          Current             Current
                                      Depth BGS                 Top               Bottom          TOC Elevation            Stick-up
                                            (ft)                (ft)                 (ft)                 (ft)                (in)
                      CSL-1                 7.00                1.00                 6.00               87.22                 0.00
                      CSL-2                 7.00                1.00                 6.00               87.36                 0.00
                      CSL-3                 7.00                1.00                 6.00               85.61                 0.00
                      CSL-4                 7.00                1.00                 6.00               86.47                 0.00
                      CSL-51)               12.75               6.75                 11.75              85.61                 0.00
                      CSL-6                 7.04                1.04                 6.04               84.55                 0.00


                      WRH-1                 7.00                1.00                 6.00               90.26                 48.00
                      WRH-2                 6.92                0.92                 5.92               90.56                 49.00
                      WRH-3D                14.67               8.67                 13.67              88.48                 38.00
                      WRH-4                 7.46                1.46                 6.46               88.79                 42.50
                      WRH-5                 7.00                1.00                 6.00               90.53                 48.00
                      WRH-6                 7.00                1.00                 6.00               87.68                 48.00
                      WRH-7M                6.56                5.06                 6.o6               85.43                 41.28
                      WRH-8M                6.06                4.56                 5.56               85.57                 47.28
                      WRH-9C                5.98                4.48                 5.48               83.59                 48.24
                      WRH-10C               5.68                4.18                 5.18               83.27                 51.84


                      RB-1                  7.25                1.25                 6.25               103.61                48.00
                      RB-2                  7.21                1.21                 6-.21              103.32                45.50
                      RB-3                  6.96                0.96                 5.96               103.30                48.00
                      RB-4                  7.03                1.03                 6.03               103.38                44.13


                      RH- 1                 9.00                3.00                 8.00               102.97                12.00
                      RH-2                  9.96                3.96                 8.96               102.79                12.50
                      RH-3                  10.00               4.00                 9.00               103.09                10.50
                      RH-4                  9.97                3.97                 8.97               102.35                6.88
                      RH-5                  20.73               14.73                19.73              103.22                13.00


                      RP- 1                 10.12               4.12                 9.12               101.46                0.00
                      RP-2                  10.46               4.46                 9.46               102.00                5.00
                      RP-3                  10.50               4.50                 9.50               102.57                7.13
                      RP-4                  10.67               4.67                 9.67               101.90                0.00
                      RP-5                  18.25               12.25                17.25              101.96                0.00
                      RP-6B                 6.65                5.15                 6.15               92.55                 40.20
                      RP-7B                 4.96                3.46                 4.46               94.45                 60.48
                      RP-8B                 6.18                4.58                 5.68               92.11                 45.84
                      RP-9B                 7.01                5.49                 6.49               95.29                 35.88











                  RC-1            14.08           8.08           13.08          105.23           12.30
                  RC-2            11.00           5.00           10.00          104.72           6.00
                  RC-3            10.42           4.42           9.42           103.57           0.00
                  RC-4            10.52           4.52           9.52           102.12           0.00


                 KDB-1            9.38            3.38           8.38           100.00           0.00
                 KDB-2            10.79           4.79           9.79           100.26           0.00
                 KDB-3            9.50            3.50           8.50           100.29           0.00
                 KDB-4            9.40            3.40           8.40           100.15           0.00
                 KDB-5            8.81            2.81           7.81           97.02            0.00
                 KDB-6            9.18            3.18           8.18           97.10            0.00
                 KDB-7            9.22            3.22           8.22           98.70            0.00
                 KDB-8            10.20           4.20           9.20           97.57            0.00
                 KDB-9            16.30           10.30          15.30          98.39            0.00
               KDB-IOM            7.65            6.15           7.15           89.10            28.25
               KDB-11M            6.77            5.27           6.27           91.26            38.75
               KDB-12M            7.25            5.75           6.75           92.69            33.00
               KDB-13C            5.23            3.73           4.73           85.32            57.25
               KDB-14C            6.52            5.02           6.02           86.67            41.75
               KDB-15M            6.63            5.13           6.13           91.81            40.50


                 FDC-1            10.19           4.19           9.19           29.69            0.00
                 FDC-2            8.90            2.90           7.90           29.61            0.00
                 FDC-3            9.30            3.30           8.30           29.87            0.00
                 FDC-4            10.60           4.60           9.60           29.90            0.00
                 FDC-5            10.80           4.80           9.80           24.49            40.50


                 RET-1            6.38            0.38           5.38           98.17            0.00
                 RET-2            7.08            1.08           6.08           101.55           45.75
                 RET-3            7.12            1.12           6.12           98.31            0.00
                 RET-4            6.98            0.98           5.98           100.59           24.00
                 RET-5            7.04            1.04           6.04           100.54           18.33
                 RET-6            7.06            1.06           6.06           98.85            0.00


                 REH-1            7.05            1.05           6.05           100.79           40.50
                 REH-2            6.96            0.96           5.96           100.93           40.50
                 REM              7.04            1.04           6.04           100.66           46.50
               REH-3SS            7.61            6.11           7.11           99.18            28.74
                 REH-4            7.08            1.08           6.08           101.06           43.13
                 REH-5            7.02            1.02           6.02           100.93           44.50
                 REH-6            17.20           11.20          16.20          101.10           43.75
                 REH-7C           5.30            3.80           4.80           97.58            56.40
                 REH-8C           4.09            2.59           3.59           98.76            70.92










           Table 6. Su         of Hydraulic Conductivity Tests
                Well        No. of Tests                        K                 Comments
                                               Avg             Avg
                                               (ft/d)         (cm1s)
                CSL-1             --                                     Not Tested
                CSL-2             3          1.517E+00      4.460E-05
                CSL-3             3          1.816E+00      5.340E-05
                CSL-4             3          2.667E+00      7.841E-05
               CSL-5D             3          3.369E-01      9.904E-06
                CSL-6             3          1.677E+00      4.929E-05


               WRH-I              3          3.869E-01      1. 13813-05
               WRH-2              3          1.343E+00      3.949E-05
              WRH-3D              3          5.037E-01      1.481E-05
               WRH-4              3          4.626E+00      1.360E-04
               WRH-5              3          7.768E-01      2.284E-05
               WRH-6              3          3.335E+00      9.805E-05
              WRH-7M              3          1.461E+01      4.295E-04
              WRH-8M              3          9.664E+00      2.841E-04
              WRH-9C              3          6.419E+00      1.887E-04
              WRH-10C             3          8.728E+00      2.566E-04


                RH-1              4          1.647E+00      4.841E-05
                RH-2              4          6.663E-01      1.959E-05
                RH-3              4          1.20913+00     3.553E-05
                RH-4              4          4.770E-01      1.402E-05
                RH-5              4          1.106E+00      3.250E-05


                RP-1              4          4.160E-01      1.223E-05
                RP-2              4          1.586E-01      4.663E-06
                RP-3              4          1.040E+00      3.058E-05
                RP-4              4          5.849E-01      1.720E-05
                RP-5              4          5.806E-01      1.707E-05
                RP-613            --                                     Not tested
                RP-7B                                                    Not tested
                RP-813                                                   Not tested
                RP-913            --                                     Not tested


                RC-1              4          5.637E+00      1.657E-04
                RC-2              --                                     Insufficient water in well
                RC-3              4          8.173E-01      2.403E-05
                RC-4              1          7.509E-01    1-2.208E-05
           F                                             I               I











               KDB-1            3        2.240E-01     6.586E-06
               KDB-2            4        5.67 1 E+00   1.667E-04
               KDB-3            3        3.027E-01     8.898E-06
               KDB-4            2        3.075E+00     9.041E-05
               KDB-5            3        4.629E-01     1.361E-05
               KDB-6            3        7.126E-01     2.095E-05
               KDB-7            --                                 Insufficient water in well
               KDB-8            --                                 Insufficient water in well
               KDB-9            3        1.387E+00     4.077E-05
             KDB-lOM            1        1.032E+00     3.035E-05
             KDB-11M            --                                 Insufficient response
             KDB-12M            3        6.992E+01     2.056E-03
             KDB-14C            --                                 Not tested
             KDB-13C            --                                 Not tested
             KDB-15M            3        3.097E+00     9.104E-05


               FDC-l            2        2.141E-01     6.295E-06
               FDC-2            2        4.772E-01     1.403E-05
               FDC-3            --                                 Insufficient water in well
               FDC-4            2        2.274E-01     6.686E-06
               FDC-5            --                                 Insufficient response


               REH-I            3        1.841E+02     5.412E-03
               REH-2            4        3.503E-01     1.030E-05
               REH-3            4        9.149E-01     2.690E-05
               REH-4            4        1.743E+01     5.125E-04
               REH-5            4        2.232E-01     6.562E-06
               REH-6            4        7.779E+00     2.287E-04














                                     Table 7. Groundwaur Elevadon Time History Summary
                                     JWELL [T@ ___                                                                              GROUNDWATER ELEVATIONS               Ifl)
                                                          9
                                                                                                                                ,2,gT
                                                                        31719-91 3 n3 1915             I'l 1951      51,1951        5              6,29,95  7/17/951 8/21/95110/191 51 21291961                                1,111961 5/22/951             6/6/91
                                                                                                                                                                   @f"           (ft@           (f                                            (ft)           (ft)
                                     KOB-1                92.49         94.68          95.04           :4.52         :44.17     94.170             92.94           92.09         91. 62         2               95.70          95.08          94.50          :4.12
                                     KD:-2                120           --             --              4.34          2          :4.0               93.12           :2.24         1.94           :2 6:           --             --             94.39          3.33
                                     D 3                  2.4                                                                                                                                                                  94.64                         94.01
                                                          0
                                     K_                   97            94.41          94.69           94.22         94 00      4.03               92.92           2.06          1.06           92.60           95.14                         94.22
                                     KDB                  92.13         94.13          94.44           93.99         93.71      93.77              92.42           92.17         :1.70          :2.53           94.,8.16       94.32          93.896         92.82
                                     IC 11:4                            9              91              13                       9                  g                                                            9              92                            4
                                     5                    91.29         2.0:           2.6             :2.91                    1.613              0.31            ::*59         9,51           0,413           3                             91.            91.
                                     D 6                  6             9              9                                                           8               4             .7 ,           .               9-             -1:            61             91.167
                                     KDB-                 9.4           2.1            2.47                                     91,41              "90                                          8,07            2*4.           92,4           91. 1
                                     K a_                 :2 8          9              9(.                                      9                                                               91              9              5
                                     D 7                  2             0.10           3.3             92.84         92,33      2.35               9.,99           91,54         90,22          20              3.92           93*3           92.72          92-22
                                     3_                                                                              08                                            a
                                     KD                   97-57         92*80          93.33           92.69         92'        92,2:              90*17           89,36         89,11          90 24           93.76          93,76          92.90          92-47
                                     XDB_:                go .39        91. 36         94.49           91.68         86.12      91.0               go .04          96.1          96.16          96.16           96.16          96 .16         91.3           90.40
                                     KD 3_10                                                                                                                                                                                                  :4*1:          3.94
                                     KDB:II                                                                                                                                                                                                   94,44          :4,32
                                     KD:_12                                                                                                                                                                                                   1* 99          91.59
                                     KI) 13                                                                                                                                                                                                   83,82          83-77
                                     KDB-14                                                                                                                                                                                                   80. go         78*36
                                     KD B_ 15                                                                                                                                                                                                 91.81          91..,



                                                                                                                                    GROUNDWATER ELEVATIONS (ft)
                                            12/14/941                   2/It6/951      3121951 3/30/951              4(/61951 5/11/9               /29/951 7/121951 8/115/95111/14/9511@/18/951                                2/1/961        2/81961 312 /961
                                                          (ft)          (f             (ft,            f,)           't)        tft)               (ft)            ft                                           (ft                                          (f:)    5/:T6/6,/96
                                     IWELL1                                                                                         17                                           (ft)           (ft)                           (ft)           (ft                    , 96        @,t
                                     WR.H-1               82.94.        3-11.          83.66           :3.27         .039                                                                       --              84.0.          .4.2.          83.25          84.35   83.70           82.81
                                     WRH-2                83.35!                                                     :3         :2.51              :1.45           :1,43         :1*35
                                                          ___LO.161                                                                                                                                             84.22          83.95          83.33          83.84   83.49           82.88
                                                                                       84.46           3.37          3.1        2.49               2.12            1.45          1.37           --
                                     WRH-3D               85.12         12,13                                        :2.:1      :2.09              :1.23                                                        :1.3:          :3.216                                      91           33
                                                                        7              :2*::           :2*:l                                                       :1.21         @.I.                                                                                                8
                                                                                                                                                                   4             7              :2.:@.
                                     W                                                                                                                                                                                                        :2.90          :3.21
                                     .RH:4                9             9              2               2- 1          2.8:       2.04               1.12            0.10          9,:7           2               3,2            3.2            2.283          3.15    2.90            82.40
                                                          :2,91         ::,.
                                     WRH_6                2.3           *3             .329            a3-27         a2*        a2.31              81.5:           81.4          81-5           a4.54           a4*057         S4,37          83'2           84.26   3.28            82.6:
                                     RH                   82.76         87.68          a2.43           82.32         82. 10     81.74              80.6            a0.03         79.80                          82.9           82.50          82.29          82.53   :2.3  6         81.0
                                     WRH-7                                                                                                                                                                                                                           1.94            :1.52
                                     WPJ1-                                                                                                                                                                                                                           :1.57           1.42
                                     WRH                                                                                                                                                                                                                             80.18           80.22
                                     WRH-10                                                                                                                                                                                                                          80.3  3         80.281

                                                                                                                                GROUNDWATER ELEVATIONS               (ft)
                                           12/14t/941 2/16/951 2/23/951 3/30/951 5/111951                                       6/51951 6/29/951 7/12/951            8/16/95110/26              /951 2/22/961 4/111961                        6131961        6/6
                                                                                       (ft)            (ft,          f,)        (ft)                                                                            (ft)           (,t)           (f,)           (f,
                                     IWELL                (f            (ft)                                                                       (ft             (ft)          (ft)           (ft,
                                     C:L 1                :3.:5         :3.58
                                                                        0              :3.590          ::.25         :3.2:      :3.25              :2.73           :2.145        :2.17          :3.28                                         :3.62          .22
                                                                                                                                                                                                2               :5.29          :4. 92                        7
                                     C L-2                3. 2          3.3            3. 4            51            3,0        3*01               2.5:            2,,           1*91           3.a             5.01           4-5            3.44           3.52
                                     CS L-3               83.18                        83. 07          8, .00        .2.45      82.47              81.8            1. ':         .1.39          .2.74           84.73          83.9:          82.64          85.61
                                     C:L-:                :3*56         j...           :3.11           3.48                                                        :1.95         :1.:3                          84.82                         :3.15          :3.25
                                                                                                       3             :2.94      :2.84              :2.32                                        :2.:59                         :4.35
                                     C L-                 3.24                         1.83            :1.8          2.69       2.84               1.98            1.79          1. 7           2.              --             4.15           2.99           5.61
                                     CS L- 5D             83.45
                                     CS L-6               92.50                        82.40           02.20         81.83      81.73              81.05           80.88         80.58          82.24           83.06          83.35          81.81          81.96




                                                                        GROUNDWATER ELEVATIONS (ft)
                                             @2/6/94                    3/1 /951                       616/95 6/29/951 717/95
                                     IWELL                (ft,          (f5t)                          (ft)I         (ft        (ft)
                                     RB:1                 96.4
                                     RB_2                 97,04         ::,46          5.27            94.:7         :5.05      94.0919
                                     RB_3                 90 '04        98,47          :5,28           :4.15         5.06       95-                99.34
                                     RB 4                 97.39         81             95.83           5. 7          95.42      95.29              --



                                                                                                                                GROUNDWATER ELEVATIONS               (ft)
                                             12/ /941                   12/7/941 3/151951 5/241951                   616./951 6/(29/951 7/10/95 1 7/24/95          1 11/7/95 1 2/20/961 3/12/961 4/26/961 5/28/96                                            /6/961
                                     IWELL                (f6t)         (ft)  Aft)                     (ft)          f,)        ft)                (ft)            (ft)          (ft)           (ft)            (ft)           (ft)I          (ft)           61ft
                                     RH-I                 5.13          ::.12
                                                                        4              ::*73           :,1*781       :4,:2      :4.4:              ::.:S           :.6.12
                                                                                                                                                                   9             :542           :5.34                                                        :4
                                                                                                                                                                                                9               :4.11@.
                                                                                                                                                                                                                3              :..1:          :4.4.          6
                                     RH-2                 :6*29         5              52                            4'4                           5               57            4.00           4'9             4,             4*9            4.:7           4. 1
                                                          96 7                                                       9          9:,5               9                                                            9 70           9 30           9              95
                                     RH-3                 *1            9634           95 *6           94 9:         5              3              94              95',5:                       95 33           94,66          5.             4.619          gr,017
                                     RH-4                 102*35        102 35         97*3:           95*17         9:*7:      94':9              95'001          95,5                         95'36           4.             95,15          94*            ,* 6
                                     RH-5                 103.22        92.20          96.84           95.75         92.44      95.46              96.21           96.34                        93.31           92.99          93.85          93.43          93.19
                                     IWELL                                             GROUNDWATER                   ELEVATIONS (ft)
                                           12/10/941 3/151951 51101951 51241951 6/29/951 711                                    01951 7/241951 1215 951 4/(23/961 51(28
                                                          (ft)          (ft)           (ft)            (ft)          f,         (f,                (f,)            (ft 11        ft)            ft
                                     RP-1                 94.85,        4.11           94.25           3.91                                                        9:            .16                            :4.:2
                                                                                                       5             :3.40      :3.72              :3.4:           :3.7          :4
                                     RP-2                 95.21!___!k8.jt.'            94.10           :3 - 7        3.25       3,::               93,459          93'           3:2                            3' 5
                                     RP-3                 5.29                                         9 4           93,5:      9                                  28            94                             93 a
                                                          o             :41.7S         :44,27          '             9          93                                 94*80         17
                                     RP:4                 :4.9          '71            *3S             1:'52         3.4        3.7.9              933`44          3.            94*1                           93*6:
                                     RP 5                 --            95.'"          90.16           93.31         93.11      54.90              93.61           915.69        92.41                          93.94
                                     RP_6                                                                                                                                        -45            89.48           --
                                     RP _7                                                                                                                                       ::.35          50
                                     RP                                                                                                                                          8,
                                                                                                                                                                                 52             61
                                     RP                                                                                                                                          92.10          92.11           92.79
















                                  Table 7. Con't
                                  J*ELL            -                                       GROUNDWATER ELEVATIONS                          ft)
                                                   1@@./9. 3/23/951 5/(18/951 5/24/951 6/29/951 7/10/951                                   8/23/95 11/            /951 3/(12/91,1 1/(16
                                           @2
                                                                                           (ft                 (ft)   (ft)                 (ft)I
                                  R -1             96.20              02           96,23   95.08               9-'."o 94.86                96.07         S.86     :5.00         94.76     95.7:         100.51
                                  RC               98.97      :61:72               .22     95...               94,29  95.45                94,53         :6.70    .30           --            .4        94.46
                                  CC:2             --         9.7                          95.72               g4.73                       95.77         95 1                             :15.22        93.30
                                  R _3                                .22          :5. 6'1                            95.07                                       9(5'.04       .92
                                  RC 4             --         96.22                95.17   97.82               94.37  94.62                94.60         95.1:    94.77         ::.57     95.00         93.74
                                  JWFLL                                            GROUNDWATER ELEVATIONS         (ft)
                                                   1/31941 3113/951 4113,19-11 5/4/95               5/31@/951 6/29/951 7/5/951 @'/f2196                       11/t6,/96
                                                              ,ft,                 (ft                                                                   (
                                                   1(ft)                                   (ft)                (ft    (ft                  (ft)
                                  RET-1            94.56              7.52         95.73   95.73               @4.75  94.10                94.06         94.32    94.07
                                  RET-2            96.33      :6.:5                                                                        94.16
                                                              97                   ::,:S   97.37               94.79  94.10                              94.499   :4.:2
                                  RET-3            94.77              1                    95*11               92.91  94.17                94.09         95. 4    4. 1
                                                                                                 7             09
                                  RET-4            94.41      97      94           91 7:   9:.05               95.    --                   94.31         --       93.00
                                  RET-5                       98 5                 96 71                       95.04  94.09                16            95.19    95.15
                                  RET-6            :23'8926   98'853               96'.99  :9*.404             94.62  --                   ::*oe         --       --
                                  IWELL                                                                        GROUNDWATER ELEVATIO"S                    (ft)
                                         1 10/3/941        3/13/951      4/13      1951    51    951 5/(311951     rl(291951               7,15/951 7/18/ 951 8(/2/951 10/5/951 4/(18/961 51(23/9
                                                   (ft,       (ft)                 (ft)                        't)    ft,                                (ft      ft)           (ft)      ft)           ft)
                                  REH-1            96.92      96.89                96.14   95.27               94.59  94.27                94.19         95.06    94.21         95.03     96.20         94.92         95.45
                                  REH-2            95.91      95.03                95.21   95.20               95.16  94.78                94.77         95.83    94.95         95.11     95.75         95.12         94.99
                                  REH:3            96.716     :5.11                :5.26   95.36                      94.80                94.32         6        93.52                   --            :3.24         :6.32
                                  RE                                               3             0             :5.33         4                           :4.17                  :4.21
                                  H 4              95.9               6.06         6.0     95.3                5.09   94. 9                94.SO         9.9      96.27         9.11      96.86            5.21          6.00
                                  RE                                                                                                                     f
                                      5            95.47      95.31                5.31    95.31               95.13  94.8                 94.83         :2.53    95.42         :5.71     :46.21        95.21         :5.72
                                  H                1                                                                         3:            1
                                  REH-6            01.10      96.31                6.05    91.69               93.00  94.                  93. 0         .34      92.71         4.97          .08       86.71            4.43
                                  RE H-7                                                                                                                                                                93.42         94   .88
                                  RE H-8                                                                                                                                                                93.42         94.78
                                  rELL             -          3,9/._               GROUNDWATER ELEVATIONS         (ft)
                                          [1V(22115           (@t) '1 4/6/         951 5/2/9515./22/951               6/5/951 6/29/951 I./l/96
                                                                                   lft)                                                                  f7
                                                   ,t7                                                                                                   t)
                                                                                           (ft)                (ft)   (ft)                 (ft)
                                  FDC-1            93.05      23.69                23.54   23.26               23-41  23.15                22.:2         22.S92
                                  FDC-2            94.S4      2S.19                24.79   24.39               24.46  24.30                23. 9         24. 5
                                  FDC :3           93.043     2:.28                23.04   23.33               23.82  23.48                21.46         22-93
                                  E. DC '          :4,4       29*0    0            2-6:    24.140              24-57  2.     .15           23-67         23.6
                                  FDC-5            8.13       1 .     1_,          1:.2    18.2                19.39  17.92                17.38         1a.2:











                                                         TABLE        BA:   Stto REH-Nutrient D       stabose                              i

                                                                                                                                           iWELL: R             um                      mg/L um          mg/L                              glL
                                                                                                   PH IH20DEPTH         TSS        % OoA         DATE           N03                     -N03-N NH4       NH4-N-     mlIL             MP04                        TIDE FLTER
                                                             12/7194        15.00                                                                12/7/94        10.96                   0.15 121.71      1.76       1.8610.320    1  O@025                       LFM
                                                             217195                                                                              2/7195                                                               1           1                              LFF@
                                                             3113/95        9.80     5.20                  3.90         91.14      9.09          3/13/95        5.70                    0.08 39.66       0.56       0.63 0.104       0.008                       LFF
                                                             4113195                                       4.65                                  4/13/95                                                                                                         HNO BIN
                                                             514/95         6.00                   7.10    6.52-        1398.00    6J2           514/95         5.25                    [email protected]      2.27       2.35 0.022       0.002                       1LNO 8
                                                             6131/95                                       6.20                                  6/31/QS    I                                  I                                                                 ILNO BIN
                                                             6/12/95        15.00                  7.44    5.37         258.67     13.92         6112/95    1   1.03                    0.01 0.00        0.00       0.01 7.444       0.588                       1HE NO 8
                                                             7/5/95                  20.00                 6.60                                  7/5/95                                                                                                          LNO BIN
                                                             7/18/95                 17.00            1    4.84                                  7/18/95                                                                                                         LE NO BIN
                                                             8/2/95                                        6.49                                  8/2/9S                                                                                                          LF NO N. MPN
                                                             10/5/06        20.00                  5.78    5.67                                  1015/95        0.00                    0.00 59.98       0.84       0.84 0,844       0,067                       HFF
                                                             12128/95       10.00                                                                12/28/95       0.20                    0.00 13.75       009        0.20 0.116       0.009                       LE FF
                                                         --  4,/, -8/96     @02@01   '[email protected].       5.11    4.50                                  4118/98-       0.71                    0.01 10.76       0.15       0.16 14456       00115                       FF PF
                                                             !@/-23/96             @o      .       C09     5.87                                  S/23/96        0.00                    0.00-- 43.41     0.81-      0.61 5.963       0,471                       LNO 8-
                                                             MEAN.          12.23    13.54         0.20    5.42                                  MEAN.                                  0.04             0.79       0.83             0.161
                                                             MEDLAN         11.00    17.00         3.96    3.52                                  MED"                                   0.01             0.53       0.62             0.046
                                                             STDDEV         4.32     6.34          1.00    0187                                  STDOEV                                 0.06             0.60_      0.84             0.233
                                                                 N                                 5       i i                                      N                                   8


                                                                                                   PH H20 DEPTH         M          % OM          DATE           N03                     N03-N NK4        NH4-N      DiN  P04         P04
                                                             12/7/94        13.00                                                                12/7/94        017.61                  11.46 84.66      1.19       12.63 0.110      0.009                       LFM
                                                             2/7/95                                                                              2/7/96                                                                                                          LFROZEN
                                                             3/13/95        3.40     8.60                  4.88                                  3/13/95                                                                                                         LNO BIN
                                                             4113195                                       4.70                                  4/1 V95                                                                                                         HNO BIN
                                                             5/4/95                                        4.71                   --5/4/95                                                                                                                       LNO B/N
                                                             5/31195                                       4.73                                  :5,1311:95:                                                                                                     LNO BIN
                                                             6/12/95        5.00                   7.32    3.92         2091.00    4.57          8/12/95        271.39                  3.80 0.00        0.00       3.80 0.440       0.036                       HE NO a
                                                             7/5195                  20.00                 6.14                                  7/5/95     1                                                                                                    L- NO BIN
                                                             7/18195                 17.50                 4.00                                  7/18/96                                                                                                         LE NO BIN
                                                             812195                                        4.08                                  8/2/95                                                                                                          LF NO N, WN
                                                             10/6195        17.00                  6.84    4.12                                  1015/95        605.93                  8.50 1300.05     18.20      26.70 0.203      0.016                       HFF
                                                         -T-2128196         --4 -OO-T--                                                          12/28/95       701.44                  9.82 1182.28     16.55      2e.37 0.001      0.000                       LE FF
                                                             4118196        4.00 1 9.40            7.4S    4.08                                  4/18/96        56.85                   oja 1536.85      21.52      22.30 0.232      0.018                       wFF
                                                             5/23/96        5.00     16.00         6.49    4.79                                  5123/96        11.33                   0.16 1270.76.    17.79      17.9S 1.875      0.148                       L- PF
                                                             MEAN.          7 34     1430          7.03    4.33                                  MEAN.                                  $.75             12.54      !Sa29            0.036
                                                         --NIEDIAN                                 7.08    4.71                                  MEDtAN                                 a.15             17.17      20.12            0.017
                                                             STDDEV                                0.44    0.44                                  STDDEV                                 i.82             9.41       8.86
                                                                                                                                                                                                         6
                                                         -N                                        4       11                     -=@N                                                  6











                                                             WELL                                                                                WELL
                                                                            SAL I    TEMP          PH I H20 DEPTH       TSS        % ON          DATE           N03                     N03-N NH4        NH4-N      DIN  P04         P04                         TIDE FILTER
                                                             12/7/94        ismoo                                                                12/7/94        54L95                   0,77 70402       0mgS       1,75 0.100       0.008                       LFm
                                                             2/7/95                                                                              2/7/95                                                                                                          LFROZEN
                                                             3113196        9.00     10.00                 5.55                                  3113/96                                                                                                         LNO BIN
                                                         --@/ 1 -3/9 5      -                              5.40                                  4/13/95                                                                                                         HNO BIN
                                                             5/4/95                                        5.30                                  5/4/95                                                                                                          LNO BIN
                                                         --g-131 -/95                      -               5.33                                  5131/95                                                                                                         LNO BIN
                                                             6/12/95        9.00                   7.05    4.55    1 102.33        9.77          6112/95        7.48                    0.10 139.70      1.96       2.06 0.354       0.028                       HE NO 13
                                                             7/5/96                  21.00                 6.34                                  7/6/95                                                                                                          LNO BIN
                                                             7/18/95        18,00    17.50         7.04    5.04         leg.oo     11.83         7/10/95        12.55                   0.18 20.36       0.40       0.57 0.000       0.000                       LE NOB
                                                             8t2195                                        5.66                                  812/95                                                                                                          LF NO N, WN
                                                             10/5/95        20.50                  7.08    4.99                                  10/6/95-       0.00     -0.00          66.56            0.93       0.93 0.118       0.009                       HPF
                                                             12/28195                                                                            12/28/95                                                                                                        LE FIF
                                                             4/18196        16.00    8.00          7.08    5.50                                  4/15/96        7.07                    0.10 205.88      2.86       2.90 2.016       0.159                       wFF
                                                             5/23/96        18.00  113.00          7.08    5.94                                  5/23/9a        1.77                    0.02 85.64       1.20       1.22 0.443       0.035                       LPF
                                                             MEAN.          15.07 113.90           7.07    5.42                                  MEAN@                                  0.20             1.39       1.59             0.040
                                                             MEDAN          iS.00    13.00         7.08    5.40                                  MEDMIN                                 0.10             1.00       1.49             0.019
                                                             STD06--        4.49     5.34          0.02    0.48                                  STDDEV                                 0.29             0.89       0.87             0.060
                                                                 N                 7       5       5       11                                      N                                    6                a          6                      6

                                                         - - - - - - - - - - -
                                                             WELL,                                                                               WELL
                                                                                                      HW DEPTH                                   DATE           N03                     M03-M NH4        NH4-N      DIN              P04                         TIDE
                                                                            SAL      TEMP          pH                   Iss                                                                                              POO                                     FILTER
                                                             12/7194        15.00                                                          1     12/7/94        5.93                    0.08 233.94      3.28       3.36 0.130       0.010                       LFM
                                                             2/7/96                                                                        1     2/7/95                                                                                                          LFRCZEN
                                                             3/13/9S                                       5.00                                  3113/95                                                                                                         LNO BIN
                                                             4113195                                       5.03                                  4/13/95                                                                                                         HNO BIN
                                                             S/4/05                                        5.76                                  5/4/95                                                                                                          LNO BIN
                                                             5131195                                       6.97                                  5131195                                                                                                         LNO &W
                                                             6/12/95                                       5.19                                  6112/95                                                                                                         HE NO BIN
                                                             7/5/95                1 23.00                 6.56                                  7/5/95                                                                                                          LNO BIN
                                                                                                                                                                                                           F
                                                                                                                                                                                                                    .3

                                                                                                                                                                                                                    @3

                                                                                                                                                                                                                    00





























                                                                            5.00     16.00
                                                                            3.39     5.05
                                                                                   7       1 m




                                                                                           V7
                                                                                                   08

                                                                                                   7


                                                                                                   '.0.
                                                                                                   0.02












                                                             7/ia/ss               117.00                  4.67                                  7/18/96                                                                                                         LE NO BIN
                                                             8/2/96                                        8.37                                  8/2195                                                                                                          LF NON. MP
                                                             10/5/05        17.00                          5.53                                  10/5195        6.51                    0.09 313.60      4.39       4.48 0.469       0.037                       HNO 6
                                                             12/28/95                                                                            12128195                                                                                                        LE NO BIN
                                                         -7/-18/96                   9.50                  4.18                            1     4/18/96                                       1                                                                 NO BIN
                                                                                     15.50                 5.85                          -T- -5/23196                                                                                                            1NO NIB
                                                             MEAN.          16*00 16.25                    5.65                                  MEAN.                                  9                3          3-               0.024                       11
                                                                                                                                                 MEDL4kN                                No -.                       3122          @L..24.
                                                                                                                                                                                        0.01                                      1 0.019
                                                                                                                                         -1        N                                    2      1         2 1        2 1           1        2




















                                                                                                                                             WELL:
                                                                                    TEMP         PH H20 DEPTH        TSS        %Om          DATE          N403                  N03-N NH4    NH4-N          DIN  P04               P04        TIDE FLTER
                                                             12/7194         COO                                                             12/7/94_  1 1090.75                 15.27 1378.97 19.31         34.S8 0.200            0.016      LFm
                                                             217!95          6a5O   1.00         7038                20.50                   217/95        9.94                  0.14 1436.73 20.10          20.24 0.104            0,008      LNO B
                                                             3113/95         1.80   8.50                 5.62                                3/13/95                                                                                           LNO B/N
                                                             4113195                                     5@62                                4/13195                                                                                           HNO B/N
                                                             5/i/95                                      S.62                                514/95                                                                                            LNO B/N
                                                             5131195                                     5.80                                5/31/95                                                                                           LNO B/N
                                                             6/12195                                     4.66                                6/12/95                                                                                           HE NO B/N
                                                             715/95                 19.00                6.10                                715/95                                                                                            LNO BfN
                                                             7/18/95                17aoo                4.48                                7118195                                                                                           LE NO SIN
                                                             812195                                      5.59                                8/2/95                                                                                            IF NO N, NFN
                                                             10/5/95         0.00                        5.30                                10/5/95       897.06                12.56 1235.00 17.29         29.85 0.216            0.017      H FF
                                                             12128/95        COO                                                             12/28/95      18.76                 0.26 1221.49 17.10          17.36 0.001            0.000      LE FF
                                                             4/18/96         2,00   9.00         6.81    4.6L--                              4/18/96       1.81                  0.03 1389.83 19.48          19.48 0,272            0.021      W FF
                                                             6/23/96         0.00   l5a50        7.43    5.72                                5123/98       3.55                  0.05 1438.16 20.13          20.18 0.234            0.018      L PF
                                                             MEAN.           2.61   11.67        7.21    3.38                                MEAN.                               4.72         18.90          23.62                  .. 14
                                                             MEDIAN          2.00   12.25        7.36    5.62                                MEDIAN                              0.20         19.38          20.21                  0.016-
                                                             STDDEV          2.37   6.73         0.34    0.53                                STDDEV                              7olS         1.36           6.90                   0.008
                                                                N            7         6         3       1 1                                  N                                  a

                                                                                                                                         -------------
                                                                                                                                             WELL:
                                                                                    TEMP         PH H20 DEPTH        TSS                                                         IY03-M NH4   NH4-N          DIN  P04               P04        TIDE FLTER
                                                             1 2/7t94                                                                        12/7/94                                                                                           LF NOWELL
                                                             217/95          13.90  3m5G                             20.50                   2/7195    1   0.33                  0.00 772.37  10.81          10.82 0.032            0.003      L s
                                                             3/13195         10.20  7.60                 4.79        54.80      8.30         3113/95       3.71                  0.05 48.79   0.68           0.73 3,987             0.31-5     L FF
                                                             4113/95         2.00                        5.05        29.80      i0.81        4/13/95       S.24                  0.07 217.51  3.05           3.12 10.708            0.846      H PF
                                                             5/4195          10.00               6.82    9.41        4.20       23.81        514/95        0.76                  0.01 399.23  5.59           S.60 9.980             0.788      L FF
                                                             5/31/95         13.00               6.63    8.10        21.00      7.14         6/31195       2.55                  O@04 442.84  6.20           6.24 12.235            0.966      L FF
                                                             6/12195         12.00               6.95    7.08    --fO. 0 0        .67        8112196       2.46                  0.03 368.56  5.16           5.19 7.482             0.591      HE FF
                                                             7/5/96          13.00  12.90        6.a4    8.00        23.80   1 9.24          715/95        0.57                  0.01 331.71  4.64           4.65 2.175             0.172      L PF
                                                             7/18/95         12.00  12.50        7.03    8.05        219.26     2@51         7/18/96       2.a2                  0.04 117.40  1.64           1.68 6.204             0.490      LE PF
                                                             8/2/96          12-00  16.10        6.92    6.28        33.60      13.69        8/2/9S        2.06                  0.03 30.56   0.43           0.46 7.850             0.620      IFIFF
                                                             10/5/95         lo.so               6-82    6,02                                10/5/95       5.99                  O@08 297.28  4.16           4.25 0.226             0@018      H PF
                                                             12/28/95        17.00                                                           12/28/95      0.73                  0.01 168-60  2.36           2.37. 0.047            0.004      LE FF
                                                             4/18/96         16.00               6.14    6.97                                4116/98       0.00                  0.00 127.55. 1.79           1.79
                                                             5123/96         16.00  17.00        5.53    14.39       14.39                   5/23196       0.00                  211.44  1    1,111          0.86 0.945    --6075
                                                                                                                                                                                 0!22
                                                             MEAN            12.12  11.60        6.63    7.89                                MEAN                                             .64            3.67                   0.407
                                                                                                                                                                                                             3.12
                                                             MEDIAN          12.00  12.70@       6.02    8.00                                MEDIAN                              0.03                                               0.402
                                                                                    5.17         0.49    2.61                                STDDEV                              3            2.91           2.91                   0.355
                                                                                       6         9  1    11                                   N                                  oi 03        13             13                     12







                                                                                                                                             WELL:
                                                                                                 PH H20 DEPTH        TSS        %OM                        N03                   1403-H NH4   NH4-N          DIN  P04               P04        TIDE FLTER
                                                             4/18/96         16        a         6.19    3.97                                4/10196       6.67                  0.09 291.57  4.08           4.18 1.927             0.144      W FF
                                                             5/23/96         Is     11.9         7.03    4.16                                5/23/96       2.82                  0.04 209.62  2.93           2.97 1.24              0.098      L
                                                             MEAN            16     9.93         6.61    4.065                               MEAN                                0.07         3.51           3.57                   0.121
                                                                                                                                             MEDIAN                              0.07         3.51           3.37                   0.121
                                                                                                                                             STDDEV                              0.04         0.51           0.85                   0.033
                                                                                                    I                                          N                                 2            2              2                      2

                                                                             -R
                                                                                    TEMP         PH I H20 DEPni      Tw         %OM I        DATE          N03                   N03-N NH4    NH4-N          DIN  P04               P04        TIDE
                                                             4/18/96         17        0                                                     4/18/96       4.70                  0.07 161.81  2.26           2.33 2.15              0.170      W FF
                                                             5/23/96         Is     13.6                                                     5123/96       1.69                  0.02 157.97  2.21           2.24 2.523             omigg      L
                                                             MEAN            17.50 10.80                                                     MEAN                                0.04         2.24           2.29--                 0.185
                                                                                                                                             MEDIAN                              0.04         2.24           2.2$                   0.165
                                                                                                                                             STDDEV                              0.03         0.04           0.07                   0.021
                                                                                                                                                                   1 2.00        1!           2.00           2.00 1                 2.00
                                                                                                                                                                    N
                                                                                                                                                                                 0
                                                                                                                                                                                 0
                                                                                                                                                                                 .4
                                                                                                                                                                                 03
                                                                                                                                                                                 .0'
                                                                                                                                                                                 .04
                                                                                                                                                                                 ..3
                                                                                                                                                                                 00.







                          TABLE 8A: Site R                   Microbiological Dat8ba84                                                                                                                                                                                            I

                                                                                                                                                                                                                ac--             FC         Ec  Enter@mi             IF       TIDE   RLTM
                                                  FC         Ec  Ente@             (P          TIDE     FILTER                                                                                                1217/94                                 0              0                      m
                                1217194           0          0          0          700         LF       m                                                                                                     2/7/95                                                                 FR02EN
                                2/7/95                                                         L        FROZEN                                                                                                3/13/95                                                         L      NO HfN
                                3113/95           0.24       0.24       0.24       0.24        L        FF                                                                                                    4/13/95                                                         H      NO BIN
                                4113/95                                                        H        NO SIN                                                                                                5/4/95                                                          L      NO BIN
                                5/4195                                                         L   I    NOS                                                                                                   5/31/95                                                         L      NO BIN
                                5/31/95                                                        L        NO BIN                                                                                                6/12/95                                                         @E     NO BIN
                                6/12195                                                        w        ND 8                                                                                                  7/5/96                                                          L      NO B/N
                                7/5/95                                                         L        NO SM                                                                                                 7/18/95                                                         UE     NO BIN
                                7/10/95                                                        LE       NO BIN                                                                                                812195             0          0                                 LF NON "IN
                                812195            0          0                     -           LF  AD At "IN                                                                                                  10/5/95                                                         H      NOS
                                10/5/95           0.09       0.09                              H        FF                                                                                                    12/28/95           0.09       0.09                              LIE    NO B/N
                                12                0.49       0.49       0.49       0.49        LE       FF                                                                                                    4118/96                                                         w      NO 8
                                .,=        -0 49 T   0-49                                      w        FF                                                                                                    5/23/96                                                         L      NOS
                                5123/96                                                        L        NO 8
                                GEOMEAN.          0.27       0.27       0.34       0.34
                                                                                                                                                                                                              WELL REEKS
                                SMEV              0.20       0.20       0.19       0.18                                                                                                                       --6xTE--           FC         Ec  Enter@i              (P       TDE    FILTER
                                COUNT.            4.00       4.00       2.00       2.00                                                                                                                       1217194            0          0         0              0        IF            m
                                                                                                                                                                                                              2/7/95                                                          L      NO B
                                                                                                                                                                                                              3/13195                                                         L      NO B/N
                                DkfE              FC         Ec  Enterommi         CP          TOE      FLTER                                                                                                 4/13/95                                                         H      NO B/N
                                1217194           0          0          0          63          LF       m                                                                                                     5/4/95                                                          L      NO BIN
                                2/7/95     1                                                   L   I    FROZEN                                                                                                5/31/95                                                         L      NO BIN
                                3113/95                                            -           L        NO BIN                                                                                                6/12/95                                                         w      NO BIN
                                4/13/95                                                        H        NO BIN                                                                                                7/5/95                                                          L      NO B/N
                                5/4195                                                         L        NO BIN                                                                                                7/18/95-                                                        LIE    NO B/N
                                5/31195                                                        L        NO SIN                                                                                                812195             0          0                        500      LF NOA( AM
                                6112195                                                        w        NDEI                                                                                                  1015/95            0.09       0-09      0.09           5        H             FF
                                7/5/95                                                         L        NO BIN                                                                                                12/28/95           0.49       0.49      0.49                    LIE           FF
                                7118/95                                                        IE       NO SIN                                                                                                4/18/96_           0.49       0.49      0.5            0.49     w      NOS
                                812195            0          0                                 LF  AV At AVW                                                                                                  5/23/96            0.5        0.5                               L             IF
                                10/5/95           0.09       0.09       0.09       0.09        H   I    FF                                                                                                    GEOMEAN@           0.32       0.32      0.28           1.57
                                12128/95          0.49       0.49       0.49       0.49        LE       FF                                                                                                    STDEV              0.20       0.20      0.23           3.19
                                4/18/96           0.49       0.49                              w        FF                                                                                                    COUNT              4.00       4.00      3.00           2.00
                                5/23196           0.49       0.49                              L        FF
                                GEOMEAN.          0.32       0.32       0.21  1    0.21                                                                                                                       1WELL REH-6
                                SMEV              0.20       0.20       0.25  1    0.28
                                                                                                                                                                                                              DATE               FC         Ec  jEntero=mfl          CP       TIDE   RLTER
                                cotwf.            4.00       4.00       2.00       2.00                                                                                                                       12/7/94                                                         LF     NO WELL
                                - - - - - ---                                                                                                                                                                 217195             29         3         0              0        L             s
                                   .REW3                                                                                                                                                                      3/13/95   -7--- ---0.75                 0.24           0.24     L             FF
                                           -Fr,              Ec  Enteroccoci       (P          TDE      FILTER                                                                                                4/13/95            0.24       0.24      0.24           0.24     H             FF
                                1217194           0  1       0          0          0           LF       m                                                                                                     5/4195             i-.24      0.24      0.24           0.24     L             FF
                                2/7/95               1                                         L        FR02EN                                                                                                5/31/95            0.24  --   0.24      0.24 --        0.24     L             FF
                                3113196           0.49       0.49       0.40       0.49        L_       NO BIN                                                                                                6/12/95            0.24  -0.24    -0.2-4               0.24     I-E           IF
                                4/13195                                                        H        NO SIN                                                                                                7/5/95             0.24       0.24      0.24           0.24     L             PF
                                5/4195                                                         L        NO SIN                                                                                                7/18195            0.24       0.24      0.24           0.24     LE            FF
                                5/31/95                                                        L        NO BIN                                                                                                8/2/95             0.24       0.24      0.24           0.24     LF            FF
                                6/12/95                                                        w        NOS                                                                                                   1015/95            0.24       0.24      0.24           0.24     H             PF
                                7/5195                                                         L        NO SIN                                                                                                12/28/95           0.24       0.24      0.24           0.24     LE            IF
                                7116195                                                        LE       NOS                                                                                                   4/18196                                                         w      NOS
                                812195            0          0                  -              LF  AD At A*W                                                                                                  5123/96                                                         L      NOB
                                !0!6/95           0.24       0.24       0.24       0.24        H        FF                                                                                                    -GEOMEAN-          0.34       0.27      0.24           0.24
                                12/28/95          0.49       0.49       0.49       0.49        LE       FF                                                                                                    SMEV               2@,l 4     0 So      0.00           0.00
                                4/111/96          0.49       0.49       0.24       0.24        w        FF                                                                                                    COUffr.            00         1 @,10    10.00          10.00
                                5/23/96    _0.24             4          0:24       0.24        L        FF
                                                  0.37       0:2
                                                             . 37       .2         0.32
                          I     STDEV      1      0.141      0.14       0.14       0914
                                COUNT.     1      5.001      5.001      5.00       5.00                                                                                                                       DAlt               K;         15c lEnter@jj            cp       I      FILTEFI
                                                                                                                                                                                                              4/18796            -.24                                . 4      I-F           FF
                                                                                                                                                                                                              5/23/96                                 O@24           0.24     L             FF
                                                                                                                                                                                                              GEOMEAN.           .24                                 0.24


                                                                                                                                                                                                              ----------
                                                                                                                                                                                                                                                                                 ---4L-TER
                                                                                                                                                                                                              4/18/96   1 1.,2              0 24      0              024                    IF
                                                                                                                                                                                                              5/23/96                                                         L
                                                                                                                                                                                                                                                1     14
                                                                                                                                                                                                                                            4         0 4            @.4
                                                                                                                                                                                                              r.FOMFAN           0.24       0.24      0.24           0.24
                                           M
                                                  0
                                                  02 4                                                                                                                                                                                                                        L





                                                                                                                                                                                                                                            0
                                                                                                                                                                                                                                            009
                                                                                                                                                                                                                                            049
                                                                                                                                                                                                                                            049
                                                                                                                                                                                                                                            0'
                                                                                                                                                                                                                                            -_32
                                                                                                                                                                                                                                            I. 2o
                                                                                                                                                                                                                                            0a
                                                                                                                                                                                                                                   K4






                                                                                                                                                                                      RET N


                                                                                                                            TMLE so::: 0 RET-Pbm@l oat."

                                                                                                                            WELL
                                                                                                                                                                                      um             WgIL   U-               @91L       -OIL                                      E., L IE_@=
                                                                                                                            19,1P pH M DEPTH I                             _OM        N03            N03-N  NH4              NH4-N      DIN IP04                                  I P04 I TIDE I FILTER
                                                                                                                                                                           1217,94    14 44                 1 184 52         2,56       2 79 0 1@                                 00,
                                                                                                                                                                           217,95                                                                                                 -VN
                                                                                                                                                                           13 33                                                                                                  _0 @1*1'1
                                                                                                                            3,00              _+@2 0-0                     __,_ 3113Y95 0-3                                  4 30       4 4610 IS                                 01L
                                                                                                                                              2,! 2, 4 20                  1 13 4M3195 3 96          0.06   1 313 31         4 39       4,44 0.19                                 0@01HIFF
                                                                                                                            - 1.411           1:44 62.57                   7,90 514igs 001           0.00   1 i85065         2.60       2.60 0 02                                 000LIFF
                                                                                                                                              42                           5131/96                                                                                                LNO BIN
                                                                                                                                                                           i7
                                                                                                                            all 2_fg!_                                     6/12/06                                                                                                HE NO BIN
                                                                                                                            7isigs _00                                     715'es                                                                                                 LNO WN
                                                                                                                            7118195 18.00                                  711slas                                                                                                LE NO SIN
                                                                                                                            a12M                                           Sales                                                                                                  LF NO N. VIPN
                                                                                                                            10110/05          3.73                         tollo/es                                                                                               HNO HIS
                                                                                                                            V2126             3ves-                        512196                                                                                                 H140 BIN
                                                                                                                            MEAN lm30 14613 ?.46 3.23                      MEAN                      0.09                    3.40       3.5?                                      0.010
                                                                                                                            MEDLAN 1.30 to 2SJ7 491 . I                    NED"                      0.06                    3.40       3.41                                      0.012
                                                                                                                            STDDEV 1.01 a$    J.i2 __                      STDOEV                    0.00                    1.03       1.02                                      0.004
                                                                                                                            N -4411 1         10                           -M                        4                       4          4                                         4

                                                                                                                                                                           WELL AET-2
                                                                                                                            _iEwr H20 DEPTH   Tss                          %OM 1111 TE
                                                                                                                                                                                      N03            N03-N  NH4              NH4-N      DIN P04                                   P04 TIDE FILTER
                                                                                                                                                                           1217/96    44954          0.62   136.69           9 1        2,54 0,12                                 0.01 LF
                                                                                                                            2/7195 _2_10 1000 7.42 13960                   217195     OAS            0,11   321,94           4,61       4 52 002                                  0.00 1-s
                                                                                                                            3/13/95 040 5990  C70 TOO                      17, 14 3113/26 45.35      0.63   6 4. L5_         091        1IS4 0:61                                 0 05-LFF
                                                                                                                            _AI13J!I_ A@2E__  7.00                         20@57 4113/95 53,04       0.75   1037.06          14 52      15,27 0 ii                                0@6iMFF
                                                                                                                            514195 0,00 7.35  4AS 860                      23.26 514/95 10584        1.48   1169903          'Gr36      1 ?rS5 0906                               0.00LFF
                                                                                                                            5)3119S           6.76                         6/31195                                                                                                LNO SIN
                                                                                                                            6ft2/95           6.82                         6/12195                                                                                                HE No lvt!-
                                                                                                                            715195            7439                         715196                                                                                                 LNO BIN
                                                                                                                            7118/95 moo       7.95                         7/10195                                                                                                LE -NO BIN
                                                                                                                            612195            ?r05                         118/2195                                                                                               LF NO N, MPN
                                                                                                                            10110/96 0.00 19.00 5.77                       10/tG/95   138.73         1.94   1121.26          ISJO       17.64 0,16                                0.01HFF
                                                                                                                            512196 0.00 14A0 7.80 0 r 56                   5/2196     167.44         2r62   1547AS           21.60      24.29 0922                                0902HFF
                                                                                                                            MEAN- 9-311.64 7.52 6.35                       MEAN.                     1.17                    10.80      11.97                                     0.016
                                                                                                                            MEDAN 0. 014.40 7.42 9.76                      MEDLAN
                                                                                                                            STODEW 0.@2 7ago 0.24 1.24                     kv                        .8                      ,20
                                                                                                                                                                           4@.                                               7          11
                                                                                                                            N753              9


                                                                                                                                                                           IWELL:RET-3
                                                                                                                            H20 DEPTH         TSS                          %OM        N03            N03-M  NH4              NH4-N      DIN P04                                   P04 TIDE FILTER
                                                                                                                            12/7194 0,00                                   1207/94    16432          0.26   1146.16          16.05      16.30 0.17                                0001 LF M_
                                                                                                                            2J719S                                         -217195                                                                                                LNO SIN
                                                                                                                            3113MS COO .80    0.70 216.67                  7.54 3113196 7.14         0.10   73.16            1@02       1,12 0.06                                 0.01 L_ FF
                                                                                                                            -4/13105 -Loo     1.32 IISr40                  7.60 4113/95 0.00         O@00   1346.47          ISA5       ie.85 1.98                                __q, I G_H_FF
                                                                                                                            T3_
                                                                                                                            51419S 3.6        2 6i 25.20                   18+25 514/95 0.30         0.00   74393S           0.4i       0.41 0,02                                 000LFF
                                                                                                                            5                                              5/31195                                                                                                LNO
                                                                                                                            2/9L_                                          6112195                                                                                                HE -1 b-l
                                                                                                                            _L15195           4.22                         7/5195                                                                                                 LNO BIN
                                                                                                                            7118/95 19.60     2+92                         7110/96                                                                                                LE _iO BIN
                                                                                                                            8/2/95            4+63                         612196                                                                                                 LF NO N, %APN
                                                                                                                            lo/io/95          2Ao                          10110/96                                                                                               H_NO BIN
                                                                                                                            512196 1410       2.07                         5/2196                                                                                                 HNO BIN
                                                                                                                            MEANs 2.00 12.60 7.34 2.67                     MEAN-                     0.09                    11.58      11.67                                     0.045
                                                                                                                            MEDAN 2.00 14050 7.34 2m?4                     MEDIAN                    COS                     13.23      13.36                                     0.010
                                                                                                                            STDOEV 1.83 c02 #00 1.33                       STODEW                    0.12                    7.87       7.47                                      Mys
                                                                                                                            N431              8                                                      4                       4          4                                         4

                                                                                                                                                                           IWELL RET-4
                                                                                                                            FAY9 SAL TEMP PH H20 DEPTH TSS                 %OM DATE   N03            N03-N  NH4              NN4-N      I DIN P04                                 PO4 TIDE FILTER
                                                                                                                            1217194 o+oq_                                  1207194    27.13          0.3!_  91146            1 28       1+66 0.40                                 0.03 LFM
                                                                                                                            217195 3.20 1.00                               2/7/95                                                                                                 N
                                                                                                                            3113/95 2+20 3.80 2.66 11.60                   17+24 3113195 4.431       0.06   16.80            0.24       O@30 0.04                                 FF
                                                                                                                            -4113/96 2.00--   3.80 12680                   20.31 4113196 210         OmO4   8212             1,16       1.20 0.30                                 0.021HFFI
                                                                                                                            Sj4iQS 0.00 7.60  4.52- 26.67                  23.26 514196 i4is         0.02   49.60            0.69       0471 0902                                 OrOOL
                                                                                                                            5/31195 0.00 1540 7.64 6.50 19@00              10.30 5131/95 2.12        6.5    57.33            0.80       0 a3 0,29                                 0.02L
                                                                                                                            6112196 0.00 7.85 5.64 89.75                   6.41 6112/05 0.11         0000   78077            1.10       1.11 0.20                                 0,02 HE FF
                                                                                                                            71Si9S _ @3.00_   8.28                         -7/6,95                                                                                                LNO BIN
                                                                                                                            7116/95 1 1.00 17.50 7.02 42.00                0.481711 /95 1.06         0+03   198.42           2.70       2.00 0403                                 0000 LE _-tqs
                                                                                                                            W2195             5.90                         812195                                                                                                 LF NO N.
                                                                                                                            to 10195W                                                                                                                                             H .4@
                                                                                                                            6 2/06 1430
                                                                                                                            ..0 2.47          4.1,
                                                                                                                            M.5 14.7,         5.50
                                                                                                                            EV .2 @j          1.30                         STDOI
                                                                                                                            NIA               7


                                                                                                                                                                           4KL-L FIET-S
                                                                                                                            -SAL TEMP H2D OEM 73S                          %OM DATE   N03 NO"               NH4              NH4-N      ON  P04                                   P04 TEE -WiTEA
                                                                                                                            12/7194 0.00                                   12/7194    71.Ot          0.99   55.64            0.78       1,77 0.16                                 0.01 LFM
                                                                                                                            217195 2.00 1.00  30.80                        20195      1.68           0+02   WA9              1*92       1094 0604                                 O@00Ls
                                                                                                                            3113195 3.00 4.00 2.01 12.20                   22.95 3113196 14.57       0.20   16.39            0.23       0.43 0.00                                 0.01LFF
                                                                                                                            4/13/05 1 woo-    3aS3 G.                      26.67 4/tV96 16400        Oa22   54m 11           -0.76      009S 0131                                 0003HFF
                                                                                                                            5/4195 1.00 _ 7.66 4.49 7.20                   30.56 61419S 1.95         0.03 168w20             2.3S       2.38 0.04                                 0.01 FF
                                                                                                                            5131/96 C.qq_ 13.60 7.77 S.50 10.00            9.2!__ 5j3I/9S 0.01       0.00   46.15            0065       Qj6S 0026                                 omo2LFF
                                                                                                                            6112195           5.67                         6112/96                                                                                                1HE NO SIN
                                                                                                                            716195            9.30                         11715196                                                                                               LNO BIN
                                                                                                                            7/10196 16.00     5.89                         7/16196                                                                                                LE NO BIN
                                                                                                                            812/96            6.00                         012195                                                                                                 LF NO N,
                                                                                                                            10/io/95 0.00     5.00                         10110/96   6.60 _0@08            49w6O            0.69       Qw77 0.09                                 0.01HFF
                                                                                                                            512196 0.00 14.30 6.03 5.35                    512/96     13.81          0410   4716             0.66       oass 0+11                                 OmOlHFIF
                                                                                                                            MEAN. 0.86 18.36 7.16 6.42                     MEAN.                     $922                    1.01       1*2g                                      0@oi:
                                                                                                                            NED" 0.51 13.507V, 1 N                         MEDL4M                    0.14                    0.73       6.02                                      04008
                                                                                                                            STMEW 1.13 7.69 0. 11                          STDDEV                    6.33                    6.73       6.71                                      0.008
                                                                                                                            N83               to                           N                         0

                                                                                                                                                                           JINEIL RET4                                                                                            I
                                                                                                                            ATE SAL YEW I ON H20DEPTH 1911                 %Om IOATE  N03 N03-0             MH4              WN4.M      014 1 P04                                 IP04 YM FLIM1
                                                                                                                            12/7124                                        112/7194                                                                                               1LF NO WELL
                                                                                                                            217195 2.20 1.00  39.90                        217195     212.43         2.67   289.20           3.77       C74 OmOY                                  OmOlL_ s
                                                                                                                            3113195 2.LO- SmOO 0.00- 152.76                Sw73 3"3/96 g.14          0.09   27.32            0.38       0.47 3.10                                 014LFF
                                                                                                                            4113196 2.00      1.86 26.                     11,46 4113196,.63         0.06   190.93           -2.67      2.75 7.61                                 0.62HFF
                                                                                                                            5/4195                                         514195                                                                                                 LNO BIN
                                                                                                                            5131/95           4.23                         5131104                                                                                                LNO BIN
                                                                                                                            6/12/05           4.19                         6112195                                                                                                _tE_ NO SON
                                                                                                                            715/95            4.77                         7/5195                                                                                                 LNO SIN
                                                                                                                            7116195 16.60     4.22                         7110105                                                                                                LE INO TN_
                                                                                                                            512196            4.64                         412196                                                                                                 LF JNON,MPNJ
                                                                                                                            to"0196           3.54                         10110105                                                                                               H I Nd SIN
                                                                                                                            512196 14.40                                   $12/96                                                                                                 HNO B/
                                                                                                                            MEAlft 2. L3- 9.73 000 3.42                    MEAN.
                                                                                                                            MEMAN 2.28 9070 at# 4.2                        MEDON                                             2.67
                                                                                                                            r
                                                                                                                            2


                                                                                                                            13






































                                                                                                                                                                                                                                                                                  LF NO N. MPN
                                                                                                                            I                                                                                                                                                     H. 4@
                                                                                                                            1                                                                                                                                                     HNO BIN
                                                                                                                            MEAN1                                                                                                                                                 0.014
                                                                                                                            EDM,H.0
                                                                                                                            STDD                                                                                                                                                  0.012
                                                                                                                                                                                                                                                                                  7
                                                                                                                                              1,2 t2O2,
                                                                                                                                              -                            2.-7
                                                                                                                                              20                           3. ..
                                                                                                                                              I. oo                        2.




                                                                                                                                                                                                                             o

                                                                                                                                                                                                                             '.o
                                                                                                                                                                                                                             .17.




                                                                                                                            STOM 0.42 6.11 040 1. so                       SIDOW                                             1.73
                                                                                                                                              $
                                                                                                                            3-4







                                   LE BB: S        RET-M r toloalcal Database

                                                                                                                                                                                            DATE                Fr,             EC   Enteroccoci            CP          TIDE    ALTER
                                   REFT-                                                                                                                                                          1217194       0               0          0                0           LF       M-
                            WE     ------          FC          EE    Enteroccoci         CP           TIDE    ALTER                                                                               217195        0               0          2                8           L       S, Afo N
                                   1217194         0           0             0           0            LF        m                                                                                 3/13/95       2.5             0.24       0.5              0.24        L        PF
                                   2/7/95                                                             L       NO B/N                                                                              4/13/95       0.24            0.24       0.5              0.24        H        PF
                                   3/13/95         0.24        0.24          0.24        0.24         L         FIF                                                                               5/4/95        0.24            0.24       0.75             0.24        L        PF
                                   4/13/95         0.24        0.24          0.5  -- I -              H         PF                                                                                5/31/95       0.24            0.24       0.5              0.24        L        FIF
                                   5/4/95          0,24        0.24          0.24        0.25         L         FF                                                                                6/12195       0.24            0.24       0.5              0.24        W        FF
                                   5/31/95                                                            L       NO BM                                                                               715195                                                                L       NO BIN
                                   6/12/95                                                            W       NO B/N                                                                              7/18/95                                                               LE      NOB
                                   7/S/95                                                             L       NO B/N                                                                              812195        0               0                           0           LF      NO N, MPN
                                   7/18/95                                                            LE      NO B/N                                                                              10/10/95                                                              H       no access
                                   812195          0           0                                      LF   AIDA( MPN                                                                              512/96                                                                W       NO B/N
                                   0/1 -0/95 -                                                I       H       NO N/B                                                                              GFOMEAN--     0.38            0.24       0.54             0.24
                                   5/2/96                                                                     NO B/N                                                                              STDEV         1.01            0.00       0.11             0.00
                                   GEOM            0:24        0.24          0.31        0.39                                                                                                     COUNT         5.00            5.00       5.00             5.00
                                   STDErN.1        000         0.00          0.15        0.44
                                   ootw            3.00        3.00          3.0000      3.00
                                                                                                                                                                                            DATE                FC              ED   Enteroccoci            CP          TIDE    RLTER
                                                                                                                                                                                                  1217194       0               0          0                0           LF       m
                                                   FC          EE    Enterocooci         CP           TIDE    ALTER                                                                               217195        0               0          0                0           L        S
                                   1217195         0           0             40          60           LF        m                                                                                 3113/95       0.24            0.24       0.24             0.24        L        FF
                                   217195          21          2-1           22          6            L         S                                                                                 4/13/95       0.25            0.26       0.24             0.25        H        F7F-
                                   3/13/95         0.75        0.75          20.25       0.24         L         FIF                                                                               514/95        8.75            6.75       0.5              0.24        L        FF
                                   4/13/95         0.25        0.25          3.5         18.75        H         RIF                                                                               5/31/95       0.24            0.24       0.24             0.24        L        FF
                                   5/4/95          17          is            7.5         0.24         L         FIF                                                                               6/12195                                                               FIE     NO B/N
                                   5/31/95                                                            L       NO B/N                                                                              7/5/95                                                                L       NO B/N
                                   6/12/95                                                            W       NO B/N                                                                              7/18/95                                                               LE      NO B/N
                                   7/5/95                                                             L       NO B/N                                                                              812195                                                    o           LF      AO N, MPN
                                   7/18/95                                                            LE      NO BM                                                                               10/10/95      0.09            0.09       0.09             0.09        H        FF
                                   812195          0           0                         40           LF   AAON, WN                                                                               5/21961       3.5-            0.5        0.49             0.09        W        FF
                                   10/10/95.       0.24        0.24          18.25       0.24         H         RIF                                                                               GEOMEAN.      0.58            0.40       0.26             0.17
                                   5/2/96          0.24        0.24          2.5         0.24         I-F       RIF                                                                               STDEV         3.48            2.65       0.16             0.08
                             GEOMEAN=              0.71        0.70          7.53        0.57                                                                                                     COUNT_        6.00            6.00       6.00             6.00           1
                                   STDEV           7.44        C99           8.32        8.28
                                   ooumr           5.00        5.00          5.00        5.00
                                                                                                                                                                                            DATE                FC,             m    Enteroccoci            CP          TIDE    ALTER
                                                                                                                                                                                                  12/7/94                                                               LF      NO WELL
                                                   FC          EC    Enteroccoci         CID          TIDE    RLTER                                                                               21719S        0               0          0                0           L        S
                                   1217194,        0           0             0           0            LF        m                                                                                 3/13195       0.24            0.24       0.24             0.24        L        PIP
                                   2/7/95                                                             L       NO B/N                                                                              4/13/95       0.24            0.24       0.25             0.24        H        FIF
                                   3/13/95         0.24        0.24          0 @24       0.24         L         PF                                                                                5/4/95_                                                               L       NO B/N
                                   4/13/95         0.24        0.24          3           2            H         FF                                                                                5/31/95                                                               L       NO B/N
                                   5/4/95          0.24        O@24          0.24        0.24         L         FF                                                                                6/12/95                                                               FE      NO B/N
                                   5/31/95                                                            L       NO 814N                                                                             7/5/96                                                                L       NO B/N
                                   6/12/95                                                            W       well bent                                                                           7/18/95                                                               LE      NO B/N
                                   7/5/95                                                             L       NO B/N                                                                              812195        20              0                           40          LF      A10 N, MPN
                                   7/18/95                                                            LE      NO B/N                                                                              10/10/951                                                             H       NO B/N
                                   812195          1400        0                         16000        LF   AIO N, MPN                                                                             5/2/961       0.09            0.0                                     I-F     NO BM
                                   10/10/95                                                           H       NO B/N                                                                              GEOM                          0.17       0.24             0.24
                                   5/2/96                                                             FF      NO B/N                                                                                            ::0,,.          0.09       0.01             0.00
                                   GEOMEAN=        0.24        0.24          0. 6        0.49                                                                                                                                   3          2                2
                                   STDEV           0.00        0.00          1.59        1.02
                                   COUNT           3           3             3           3













                                                                                 IABLE OC: Sito AB-Nuirtni Detabs"
                                                                                 WELL: RB-1                            i                                    WELL: RB-1      um             g        um           m                   um          mg/L
                                                                                 DATE          SAL     TEUP            H200EPTH TSS            %OM          DATE            N03         1131 LN     NH4          N144-N         DIN  P04         P04        TIDE       FLTEYI
                                                                                 12/7/94       10.00                                           1            1217/94         21.79       0.31        27.40        0.38           O@69 O@46        0.036      LF         M
                                                                                 217/95                                                                     2/7/95                                                                                          L          NO BIN
                                                                                 3115/95       3.80    5.50 7.01 --i.33                        42.88        3115/95         10.55       0.16        26.09        0.37           0.51 13.12       1.036      H          FF
                                                                                 4/18195                                                                    4118/95                                                                                         L          NO SIN
                                                                                 5131195                                                                    5131/95                                                                                         L          NO BIN
                                                                                 616196                                                                     6/6/95                                                                                          E          NO SIN
                                                                                 6112/95                                                               -6/12195                                                                                             HE         NO BIN
                                                                                 7/5195                                                                     7/5195                                                                                          L          NO SIN
                                                                                 7118/9S                                                                    7/18/95                                                                                         LE         NO BIN
                                                                                 8/23/95                                                                    8/23/95                                                                                         H          BENT
                                                                                 loylo/gs                                                                   iojio/95                                                                                        H          BENT
                                                                                 3/12196                                                                    3112/98                                                                                         L          BENT
                                                                                 MEAN.         6.90    5.50     TO-,                                        MEAN.                       0.23                     0.38           0.60             10.536
                                                                                                                                                            MEDLAN                      0.23                     0.38           0.60             0.536
                                                                                                                                                            STIDDEV                     06 i i                   0.01           0.13             0.707
                                                                                                                                                                N                          2                     2              2                2

                                                                                 WELL: RB-2                                                                 WELL: RB-2
                                                                                 DATE          SAL     TEMP     PH     H20 DEPTH TSS           %OM          DATE            N03         N03-N       NH4          NH4-N          DIN                         TIDE       FLTER
                                                                                 12/7/94       13.00                                                        12/7/94         12.89       0.18        41.61        0.58           0.76 0.17        0.013      LF         M
                                                                                 2/7195                                                                     2/7/95                                                                                          L          NO BIN
                                                                                 3/15/9S       15.50   5.00     6,96,     6.86        3.67     36.36        3/15/95         -0.00       0.00        62.10        0.87           0.8714.97        0.392      H          FF
                                                                                 4/18/95       23.00            7@0_1_                9@20     15.22        4/18/95         0.28        -0.00       28.25        0.40           0.40 1.37        0.108      L          FF
                                                                                 5/31/95       23.00   16.00    6.54      8.05        :@2.     023  08      5131/95         0.00        0.00        79.82        1.12           1.12 .35         0.42       5L         FF
                                                                                 6/6195        29.00            6.87      8.4S                 40 3 13      6/6/9S          1.83        0.03        39.82        0.58           0.58 1 @02       0.080      E          FF
                                                                                 6/12/95       28.00   - _1.49            7.75        6.20     3.23         6/12195         0.00        0.00        172.68       2.42           2.42 4.27        0.337,     HE         FF
                                                                                 715/96        31.00   17.00 8.60         8.33-       114.67   3.78         7/5/95          1.15        0.02        20.24        0.28           0. 3L 3.22       0.254      L          FF
                                                                                 7118195       31.00   16.00 7.07         7.65        209.33   12.58        7/18/95         1.15        0.02        31.76        0.44           0.46 2.89        0.228      LE         FF
                                                                                 8/23tgS       31.00   22.00.6.60         8.41        13.40 25.37           8/23/9S         0.48        0.01        25.46        0.36           0.36 0.19        0.015      H          FF
                                                                                 ioiio/gs      18.00   moo                7.44                              10/10195        16.61       0.23        40.S4        0.57           0.80 0.19        0.01S      H          FF
                                                                                 3/12/96       22.00                      8.05                              3/12/96                                 796.75       11.15          1.15 6.55        0.517      L          FF
                                                                                 MEAN.         24.05                      7.89                              MEAN.                                                1.70           1.75             0.217
                                                                                                                                                            MEDL4AN                                              0.57           0.76             0.228
                                                                                                                                                            STDDEV                                                              3.18             0.182
                                                                                                                                                                N                                                               I I




















                                                                                 WELL: RB-3                                                                 WELL RB-3
                                                                                 DATE          SAL     TEMP PH         H20 DEPTH      TSS      %OM          DATE            N03         N03-H       NH4          NH4-N          DtN  P04         P04        TEE        FLTER
                                                                                 12/7/94       11400                                                        12/7/94         47.45       0.66        21.61        0.30           0.97 0.34        0.027      LFI        M
                                                                                 2/7195        16.50   1.20     6.99                  iS.40                 2/7/95          1.08        0.02        101.06       1.41           1.43 0.01        0.000      L          S
                                                                                 3115195       21.00   5.00     6.84      6.83        1@33     50.00        3/15/95         3.52        0@05        25.16        0.35           0.40 14-80       1.169      H          FF
                                                                                 4/10/95       26.00            6.91                  50.00    17.33        4/18/95         1.82        0.03        24.23        0.34           0.36 0.12        0.009      L          NOB
                                                                                 5/31/95       24.00   19.00    0.64      8.02        7,80     17.96        5/31/95         0.05        0.00        17.54        0.25           0.25 1.91        0.151      L          NOS
                                                                                 6/6195                1                  8.35                         1    6/6/95                                                                                          E          NO B/N
                                                                                 6/12195       24.001           6.61      7.66        6.60     12.12        6/12/95         0.85        0.01        45.56        0.64           0.65 2.41        0.190      HE         FF
                                                                                 716/95                123.00             8.29                              7/5/95                                                                                          L          NO
                                                                                 7118/95       31.001  17.50    7.04      7.59        6,20     25.81        7118195         10.17       0.14        20.31        0.28           0.43 3.34        0.264      LE         FF
                                                                                 8/23/95                                  8.22                              8/23/95                                                                                         H          NO BIN_
                                                                                 10110/95                                 7.00                              10/10/9s                                                                                        H          NO BIN
                                                                                 3/12/96                                  7.79                              3/12/96                                                                                         L          NO BIN
                                                                                 MEAN.         21.93   13.14    0.91      7.75                              MEAN.                       0.13                     0.51           0.64             0.259
                                                                                                                                                            MEDIAN                      0.03                     0.34           0.43             0.151
                                                                                                                                                            STMWEV                      0.24                     0.42           0.42             0.414
                                                                                                                                                                N     1                    7                     7              7                7

                                                                                 WELL RS-4                                                                  WELL: RS-4
                                                                                 DATE          SAL     TBOP     jM     H2DDEPTHl ISS           %OM          DATE            N03         H03-H       NH4          NH4-N          DIN  P04         P04        TIDE       FLTER
                                                                                 12/7/94       15,00                                                        12/7/94         48.90       0.68        27.33        0.38           1.07 0.66        0.052      LF         M
                                                                                 2/7/96        18,50,  2.00                           7.90                  2/7/95          0.80        0.01        122.92       1.72           1.73 0.06        0.006      L          S
                                                                                 3/15/95       IS.601  4.50     6.44      4.67        13.67    26.83        3/15/9S         0.00        0.00        55.16        0.77           0.77 9.23        0.729      H          PF
                                                                                 4116/95       26.001           6.01                  5.40     25.93        4118/05         2.16        0.03        21.91        0.31           0.34 0.23        O.Ole      L          FF
                                                                                 5/31/95                                  7.56                              5/31/95                                                                                         L          NO SIN
                                                                                 6/6/95                                   6.21                              6/6/95                                                                                          E          No BIN
                                                                                 6112/95       26.001           6.74      7-30        7.60     10.53        6/12/95         0.17        0.00        90AI         1.26           1.26 Oa4?        04037                 FF
                                                                                                                                                                                                                                                                       FLR
                                                                                                                                                                                                                                                 ",fN                  N
                                                                                                                                                                                                                                                                       ,F




                                                                                                                                                                                                                                                            g
                                                                                                                                                                                                                                                                       FF
                                                                                                                                                                                                                                                                       0BIN
                                                                                                                                                                                                                                                                       FF
                                                                                                                                                                                                                                                                       ï¿½SIN
                                                                                                                                                                                                                                                                       ï¿½SIN
                                                                                                                                                                                                                                                                       N
                                                                                                                                                                                                                                                                       No SIN











                                                                                                                                                                                                                                                            L
                                                                                                                                                                                                                                                            E
                                                                                                                                                                                                                                                            HE
                                                                                 7/5/95                                   8.09                              7/5/95                                                                                          L          NO BIN
                                                                                 7/19/95       31.001  20.00 7.01         7.17        47.20 15.68           7118/95         0.85        O.Dl        26.76        0.37           0.39 0.10        0.008      LE         NOS
                                                                                 8/23/95                                  8.21                              8/23/95                                                             - -FH                                  NO SIN
                                                                                 iolloigs                                 6.49                              iomoigs                                                                                         H          NO atN
                                                                                 3112/96                                  7.39                              3/12196                                                                                         L          NO BIN
                                                                                 MEAN.         21.83 8.43 0.76            7.22                              MEAN.                       0.12                     0.80- -0.93                     .0.142
                                                                                                                                                            MEDULN                      0.01                     0.58           0.92             2:1
                                                                                                                                                            STDDEV                      0.                       0.56           0.34             ol
                                                                                                                                                                                           28                                                    1. 2









                                           TABLE BC: Site RB-Micr biological Database


                                              WELL: RB-1
                                               DATE              FC          ED  Enteroccod         CID        ME      ALTER
                                              1217194            0           0          0           0          LF       m
                                              2/7/95                                                           L       NO B/N
                                              3/15/95            0.24        0.24       0.24        0.24       H        PF
                                              4/18/95                                                          L       NO B/N
                                              5/31/95                                                          L       NO B/N
                                              6/6/95                                                           E       NO B/N
                                              6/12/95                                                          HE      NO B/N
                                              7/5/95                                                           L       NO B/N
                                              7/18/95                                                          LE      NO B/N
                                              8/23/95                                                          H       BENT
                                              10/10/95                                                         H       BENT
                                              3/12/96                                                          L       NO B/N
                                              GEOMEAN--          0.24        0.24       0.24        0.24
                                              COUNT              I           I


                                              WELL: RB-2
                                               DATE              FC          ED  Enteroccocl        CP         TIDE    FILTER
                                              1217194            65                     830         0          LF       m
                                              2/7/95                                                           L       NO B/N
                                              3/15/95            0.25        0.25       0.75        0.24       H        FF
                                              4/18/95            0.24        0.24       1           0.24       L        PF
                                              5/31/95            0.5         0.5        0.25        0.24       L        PF
                                              6/6/95             3           3          0.75        0.24       E        PF
                                              6/12/95            0.5         0.5        3.75        0.24       HE       FF
                                              7/5/95             0.75        0.75,      3.25        0.24       L        PF
                                              7/18/95            3.25        0.75       11          0.49       LE       PF
                                              8/23/95            5.75        5.75       0.24        0.24       H        PF
                                              10/10/95           1.23        0.75       0.25        0.24       H        PF
                                              3/12/96                                                          L       NOB
                                                                 0.97        0.78       1.01        0.26
                                                                 1.89        1.84       3.501       0.08
                                                                 9.00        9.00       9.00        9.00
                                              WELL: RB-3
                                               DATE              FC          M   Enteroccoci        CID        "TIDE   FILTER
                                              1217194            0           0          0           875        LF       m
                                              217195             0           0          48          0          L        s
                                              3/15/95            0.09        0.09       0.25        0.09       H        FIF
                                              4/18/95                                                          L       NOB
                                              5/31/95                                                          L       NOB
                                              6/6/95                                                           E       NO B/N
                                              6/12/95            0.25        0.25       0.24        0.24       HE       PF
                                              7/5/95                                                           L       NO B/N
                                              7/18/95            0.5         0.5        0.24        0.24       LF       PF
                                              10/10/95                                                         H       NO B/N
                                              3/12/96                                                          L       NO B/N
                                              GEOMEAN=           0.22        0.22       0.24        0.17
                                              SMEV               0.21        0.21       0.01        0.09
                                              COUNT              3           3          3           3


                                              WELL: RB-4
                                               DATE              Fr-         ED  Enteroccod         CID        TIDE    FILTER
                                              1217194            0           0          60          245        LF       m
                                              217195             9           9          85          0          L        s
                                              3/15/95            2.5         2.5        0.24        0.24       H        PF
                                              4/18/95            0.24        0.24       0.5         0.24       L        PF
                                              5/31/95                                                          L       NO B/N
                                              6/6/95                                                           E       NO B/N
                                              6/12/95            0.5         0.25       1           0.24       HE       PF
                                              7/5/95                                                           L       NO B/N
                                              7/18/95                                                          LE      NOB
                                              10/10/95                                                         H       NO B/N
                                              3/12/96                                                          L       NO B/N
                                              GEOMEAN=           0.67        0.53       0.49        0.24
                                              SMEV               1.24        1.30       0.39        0.00
                                              COUNT              3           3          3           3








                            TABLE 80: Sit* RH-Nutri"I DataboW


                            WELL:RH-1                                                                               WELL-Rit' I               .um               um                mgJL        mg/L  um                  m9lL
                            DATE                             SAL TEW PH  H20 DEPTH I TSS             %OM            DATE                      N03        1403-N NHA               NH4-N       DIN   P04__ P04
                            12/7/94                          9,00        1                i                         1217/94                   742-60     10.40  3.66              0.05        lOb45 0139 [email protected]               LF              m
                            2/9/95                           11.00 6.50 7.31              23.00                     2/9/9S                    202@8S     2m84   698.S9            9@78        12.@2 0.22                OmO2  L               S
                            3115195                          6.50 6.20 712   3.24         8.00       20.83          3/15195-                  81.66      1.14   6.33              0.09        1.23  6.34                0.50  H               FF
                            4/18/95                          4400    6401                 17.60      18.18          4/18/95                   11,413.31  19 79  142.65            2.00        21.78 112.22              8.86  L               PF
                                                                                                                                                                                                    3@6
                                                                                                                                                                                              11.63                     '6
                            5/24195                          10.00   7.40    8.16         82bOO      14.63          5/24/9S                   7S3mSO     10.55  75.96             1,08                                  729       -PF
                            61619S                           7.00    7062    8.4S         360.80     6.87           6/6/95                    146.35     2.OS   28.52             0.40        2.45  0+18                DOW   E               FF
                            6/14195                          6.00    7.40    7.95         189.00     11.24          611419S                   226.4S     3.17   23.33             0.33        3.SO  2.45                Oml9  LF              PF
                            7/10195                          6.00 19.00 T. 4 7ie @ 15     1740       24614          7/10/9S                   1,238.67   17.34  43.88             Ob6l        17.96 0.42                0.03  HE              FF
                            7124195                          t 3.00 21.50 7.12 7mg8       68.00      10.29          7/24195                   909.90     12.74  40.60             O.S7        13.31 1.07                0.08  E               FF
                            11/7/9S                          20,50 14.90 7,2S 8.08                                  1117/gS                   21.88      0,31   31.24             0.44        0.74  Om 82               0.06  H               FF
                            2/20/96                          14.501          7.76                                   2/20196                   -4S.43     0.64   47.07             0.66        1.30  0.32                0.03  FF              FF
                            3112196                          !S600   6.24    8442                                   3/12/96                   25.90      0.36   57.SO             0.81        1.17  2.76                0.22  LE              FF
                            4/26/96                          14.00 l2r9O 7.08 7+92                                  4/26/96                   36.19      0.51   93.24             1.31        1.81  0.09                _0._OI LE             FF
                            51-2 8/ 9-6                      14.00 17ISO _@. 26 8.51                                5/2-8/96                  0.00       0.00   -107,87           1.51        1.51  1.06                0.08  E               IF
                            MEAN.                            10.75 14.11 7.02 7.69                                  MEAN.                                3.84                     1.40        7.23                      0.743
                            MEDIAN                           10.30 14.90 7.24 3.08                                  MEDIAN                               2.44                     0.64        2.97                      0.074
                            STODEV                           4.64 5.98 0.66  I.So                                   STIDDEV                              6.91   -                 2.4!-       7.19                      2.341
                                      N                      147     12      11                                         N                                14                       14          14                        14
                                                             1
                            WELL: R4-2                       II                                                     WELL RH-2
                            DATE                             SALITEW pH  H20 DEPTH,       TSS        %OM,           DATE                      N03        N03-N  NFW               NH4-N       DIN   P04                 P04   TIDE            FLTE33
                            12/7/94                                                                                 12/7/94                                                                                                   LF              M, NO N
                            2/9/9S                           1&00 7.00                    14.00                     2/g/gs                    47.33      0.66   4S.24             0.63        1.30  0.30                0.02  L               S
                            3/15195                          16.00 5.80 7.21 4.27         137.00     8.52           3115195                   20.42      0.29   -20.06            0.28        0.57  9.95                0.79  H               FF
                            4/18/96                          13.00   7.15                 12.60      22w22          4/18/95                   16.33      0.23   29,16             0.41        0.64  0.83                0.07  L               PF
                            5/24/95                                  1       8.00                                   5/24/95                                                                                                   H               NO B/N
                            6/6195                           6.00    7.80    Sm25         91433      11468          6/6195                    1,101.82   15.43  110.95            I.SS        lGa98 Omig                OmO2  E               NOB
                            6/1419S                          4.00 14.SO 7.S6 7.83         183m67     9.07           6/14/96                   1,836.Si   2S.71  0.44              0.01        2S.72 1.34                0.11-- LF             NOB
                            7/1019S                                          8.10                                   7/10/9                                                                                                    HE              NO 8fN
                            7124/9S                                          8.22                                   7/2419S                                                                                                   E               NO BIN
                            11/7/9S                          18.001 13.50 6.75 7.9S                                 11/7/gS                   28.12      0.39   243.00            3.40        3.80  0.13                0.01  H               FF
                            2/20/96                          10.001          7.76                                   2/20/96                   17.29      0.24   11S.06            1.61        I.8S  O.SO                0.04  HF              PF
                            3112196                                          8.40                                   3/12/96                                                                                                   LE              No, N
                            4/26196                          -IS.00 13.90 6.47 7.77                                 4/26/96                   13.86      0.19   28.60             0.40        O'so  OM19                0.01  LE              FF
                            S/28196                          10.00 21.50 4.93 8.32                                  S/26/96                   41.66      O.S8   292.89            4.10        4.68  1.4S                0.11  E               FF
                            MEAN.                            11.78 12.70 6.84 7.72                                  MEAN.                                4.86                     1.38        0.24                      0.131
                            MEDIAN                           13.00 13.70 7.13 8.00                                  MEDIAN                               0.39                     0.63        1.83                      0.039
                            STWEV                            4.89 5.71 0.93  1.10                                   STDDEV                               9.27                     1.46        0.96                      0.249
                                      N                      9-6-    7       11                                         N                                9                        9           9                         9

                            WELL: RH-3                                                                              WELL RH-3
                            DATE                             SAL TEW PH H2DDEPTM          TSS        %OM            DATE                      N03        N03-N  NH4               NK4-N       DIN   P04                 P04   TIDE            FILTER
                            12/7/94                          3.00                                                   12/7/94                   938.26     13.14  38.25             -0.54- - 13.67    11.07               Om87  LF              m
                            210/95                           11.50 8.00                   19.20                     2/9/QS                    113.87     1.69   24.47             0.34        1.94  0.26                0.02  L               S
                            3115/95                          17.40 7.00 7.19 7.41         7.00       14.29          3115/95                   75.34      1.05   19.72             0.28        1.33  14.06               1.11  H               FF
                            4/18/9S                          10.00   7.25                 6.60       30.30          4118195                   39.21      0.55   28.66             -0.40       -O.9S 0.60                O+OS  L               FF
                            5/24/95                          10.00   7.48    8.13         16.80      16.67          5/24/95                   53.73      0.75   36.a7             O.S2        1.27  1.07                0.08  H               FF
                            6/6/95                           10.00   7.60    8.51         563.SO     3.73           6/619S                    123.39     1.73   58.63             Om82        2.55  0.18                0.01  E               NOB
                            6/14/95                          8.00,14.00 7.53 7.97         102.00     2.75           6/14/gS                   207.69 ,   2.91   0.00              0.00        2.91  4.4S                0.35  LF              FF
                            7/10/96                          12.001 17.50 7.57 8.32       21.00      21.90          7110/95                   0.00       0.00   76.51             1.07        1.07  0.09                0.01  FE              FF
                            7124/95                          19.001 21.50 7.46 -8.65      34.00      17.06          7/24/95                   0.00       0.00   56.29             0.79        0.79  0.41                0.03  E               FF
                            11/7/95                          20.001 11.80 7.20                                      11/7/95                   19.66      0.28   81.35             1.14        1.41  0.07                0.01  H               FF
                            2/20/96                          16.201          7.90                                   2/20/98                   0.00       0.00   44.01-            0.62        0.62  1.09                0.09  W               FF
                            3/12/96                          15.001          8.53                                   3/12/96                   0.00       0.00   38.26             0.54        0.54  0.60                O.Os  LE              FF
                            4126198                          12m DO 111.00 5.98 7.93                                4128196                   10.20      0.14   46-.33            0.85        -0.79 0.23                0.02  LE              FF
                            S/28196                          11.001 16.50 5.30 8.60                                 5/28/96                   9.02       0.13   17.29             1.64        1+77  0.64                0.05  E               PF
                            MEAN.                            12.311 13.41 7.08 5.19                                 MEAN.                                1.59                     0.67        2.26                      0.126
                            MEDIAN                           11.751 12.90 ?.36 8.23                                 MEDIAN                               0.41                     0.50        1.30                      0.047
                            STDOEV                           4.60 4.94 0.78  0.39                                   STDOEV                               3.43                     0.41        3.36                      0.351
                                      N                      14_a    10      10                                                                          14                       14          14                        14

                            WELL: RHA                                                                               WELL R"
                            DATE                             SAL TEMP pH H20 DEPTH TSS               %OM            DATE                      N03        H03-N  NH4               NH4-N       DIN   P04                 P04   TIDE            FILTER
                            12/7/95                                                                                 12/719S                                                                                                   LF              NO WELL
                            2/9/9S                           14.00 8.00                   23.30                     2/9/95                    65.96      0.92   112.81            1.58        2.50  10.25               0.81                  S
                            3/15/96                          13.10 8.00 7.43 4.96         298.00     S! wOl         3/isigs                   i6asi      Oa23   35wS3             Odso        0*73  -il.ii              2.52  H               FF
                            4/18/9S                          12.00   7.79                 121.50     16.87          4/18/96                   134.12     1.88   73.95             1.04        2.91  0.27                0.02  L               FF
                            S/24/95                                          7.18                                   5/24/9S                                                                                                   H               NO BIN
                            6/6/95                                           7.60         41.40      9.68           6/6/95                                                                                                    E               NO R/N
                            6/14/95                          15.50           7.04                                   6/14/95                                                                                                   LF              NO B/N
                            7/10/95                                          7.36                                   7/10/95                                                                                             11    HE              NO B/N
                            7/24/9S                                          7.37                                   7124/9S                                                                                                   E               NO B/N
                            1117/95                          20400 1Im8O 7.60                                       11/7/96                   8.07       0.11   114.8S            1.61        1.72  0.14                0.01  H               FF
                            2/20/96                          23.50 7.80      7.00                                   2/20/95                   10.05      0.14   61.87             0.87        I.Ot  0.58                0.05  HF              IF
                            3/12/96                          24.00   6.81    7.70                                   3/12/96                   7.64       0.11   .246.48           3.4S        3.56  0.39                0.03  L               FF
                            4126/96                          2700 11 10 7 28 7.                                     4/26/96                   4.07       0.00   3.36              1.17        1.22  0.20                0.02  LE              FF
                                                                             7.74                                   5/28/96                                     :5.83             0.02        0.94  -0.42               0.03  -E              FF
                                                                             7.12                                   MEAN.                     1          *::3.                    1.39        1.42                      0.436
                                                                             7.29                                   MEDIVI                                      1                 1:1.1       1.41                      0.032
                                                                             0.60                                   STDDEV                               0.65   1                 0           11.05                     as
                                                                             10                                         N                                I                        a           3                         0-8.

                            RH-5DEEP                                                                          JRH MEEP
                            DATE                             SAL TEW PH  H20 DEPTH ISS               %Om      - DATE                          NO3        M03-N  NH4-              NH4-N       DIN   P04                 P04   TIDE            FILTER
                            12/7/95                                                                                 12/719S                                                                                                   LF              NO WELL
                            210195                           4.00 10.00                                             219/9S                                                                                                    L               S,NON
                            3115/95                          11.50 8.00 TAT  6*38         10.67      25.00          3/16/95                   5.00       0.07   134.79            1.89        1.96- -72.S3              5.73  H               FF
                            4/18/9S                          2.00    7.46                 58.00      25.86          4/18/95                   0.00       0.00   163.92            2.29        2.22  0.17                0.01  L               FF
                            5/24/95                          2.00    7.29    7.47         13.33      12.50          5124/95                   S.S4       0.08   187.41            2.34        2.42  10.97               1.50  H               FF
                            6/6/95                           3.00.   7.45    10.78                                  G/6/9s                    O@44 0.01         254.78            3.57        3.57  79.28               6.26  E               PF
                            6/14/9S                          4.00112.001 7.23 11.31       18.40      21.43          6/14/95                   1.7S       0.02   8.68              0.12        0.14  25.7S               2.03  LF              FF
                            7/10/95                          4.001IS.50 7.53 7.00         204.00     11.27          7110195                   0.00       0.00   214.45            3.00        3.00  0.27                0.02  HE              FF
                                                                                                                                              K43
                                                                                                                                              73
                                                                                                                                              20 42
                                                                                                                                              1633

                                                                                                                                              1012
                                                                                                                                              3.1




































                                                                                                                                                                                                                        0B
                                                                                                                                                                                                                        212
                                                                                                                                                                                                                        002


                                                                                                                                                                       r
                                                                                                                                                                                  -N


                                                                                                                                                                                  I BB
                                                                                                                                                                                  22-
                                                                                                                                                                                  23 4
                                                                                                                                                                                  r
                                                                                                                                                                                  3,7


                            7/24/9S                          5.00 16.00 7.46 7.96-        162.5-0    6.03           7/24/95                   O.6s       0.01   56.91             0.80        0.81  14.96               1.18  E               FF
                            11/7195                                  7.23                                           11/7/95                   10.73      0.15   213.97            3.00        3.15  25.03               11.981H               PF
                            2/20/96                          2.50 8.20       9.90                                   2/20/90                   3.79       0.05   97.09             1.36        1.41  0.77                0.06  w               FF
                            3112/96                                          lOw32                                  3/12/96                                                                                                   LE              NO B/N
                            4/26/96                          10.20           9.30                                   4/26196                                                                                                   LE              NO BIN
                            5128196                          17.50           9.79                                   5/28/96                                                                                                   E               NO B/N
                            MEAN.                            4.22 12.18 7.33 9.03                                   MEAN.                                0.04                     2.04        2.06                      2.084
                            MED"                             coo 1.10 7.3?   0.38                                   MEDIAN                               0.02                     2.29        2.29                      f.494
                            I STODEV                         2.92 3.70 L14 P@r@0                                                              -2-05                               1.12        1.12                      2.250
                                      N                      9a      It           0                                     N                                                         9           9                         9








                                                                  TABLE SO: S         RH4AicrobIoioglkc8I tabase

                                                                  WELL RHA
                                                                  DATE                FC          ED Enteroccoci          CP         TIDE            FILTER
                                                                  f 217194            5                      35           285        V               m
                                                                  219195              TNTC        TNTC       203          130        L               s
                                                                  3/15/95             230         220        2.5          0.24       H               FF
                                                                  4/18/95             7.75        6.5        26.75        0.24       L               FF
                                                                  5/24/95             1           1          0.24                    H               PF
                                                                  616/96              1.5         1.5        i-           0.40       E               PF
                                                                  6/14/95             0.5         0.5        0.26         0.24       LF              PF
                                                                  7/10/95             139         125        5.25         0.24       @E              PF
                                                                  7/24/95             18950       17900      1.5          0.49       E               FF
                                                                  11/7/95             1.5         1.5        0.24         0.24       H               FF
                                                                  2120196             28.6        20         4            0.09       w               FF
                                                                  4125/96             125         110        0.25         0.24       LE              PF
                                                                  5/28/96             4.5         4          7            0.24       LE              PF
                                                                  GEOMEA,N.           18.46       16.88      1.53         0.23
                                                                  SMEV                5697.90  5382.77       7.71         0.12
                                                                  COUNT               I I         I I        I 1          10


                                                                  WELL FIH-2
                                                                  DATE                fc          ED Enteroccod           CID        TIDE            FILTER
                                                                  1217104             0           0          350          10         LF              A4 AAO N
                                                                  219195              0           0          3            0          L               s
                                                                  3/15/95             0.24        0.24       0.24         0.24       H               FF
                                                                  4/18/95             0.24        0.2-4      0.24         0.24       L               PF
                                                                  5/24/95                                                            H               NO B/N
                                                                  6/6/95                                                             E               -NO
                                                                  6/14/95                                                            LF              NO_j
                                                                  7/10195                                                            w               NO B/N
                                                                  7/24/95                                                            E               NO B/N
                                                                  11/7195             0.24        0.24       0.5          0.24       H               PF
                                                                  2/20/96                                                            w               NOS
                                                                  4/25/96             0.49        0.49                               LE              FF
                                                                  5/28/96             0.09        0.09                               LE              FF
                                                                  GEOMEAN=            0.23        0.23       0.31         0.24
                                                                  SMEV                0.14        0.14       0.15         0.00
                                                                  COUNT               5           3          3            3


                                                                  WELL: RI+3
                                                                  DATE                FC          m  Enteroccod           CP         TIDE            FILTER
                                                                  1217104             0           0          10           145        LF              m
                                                                  219195              28          24         0            0          L               s
                                                                  3/15/95             605         470        3.5          0.24       H               FF
                                                                  4/18/95             1,5         1.5        0.5          0.24       L               FF
                                                                  5/24/95             0.24        0.24       0.24                    H               FF
                                                                  6/6/96                                                             E               NOB
                                                                  6114/95             1           1          0.24         0.24       LF              FF
                                                                  7/10/95             0.24        0.24       4.5          0.24       @E              FF
                                                                  7/24/95             2           1.5        0.24         0.24       E               FF
                                                                  11/7/95             0.24        0.24       0.76         0.24       H               FF
                                                                  2/20/96                                                            w               NOB
                                                                  4/25/96             0.49        0.49                               LE              FF
                                                                  5/28/96             0.09        0.09                               LE              FF
                                                                  GEOMEAW             0.99        0.95       0.70         0.24
                                                                  sm"                 108.09      150.43     1.70         0.00
                                                                  collr               9           9          7            a


                                                                  WELL R144
                                                                  DATE      __        PC          ED Enterooood           (P         TIDE            FILTER
                                                                  12/7/95                                                            LF              NO WELL
                                                                  219195              is          11         81           0          t               s
                                                                  3/15/95             1.25        i          0.24         0.24_      H               PF
                                                                  4118/95             0.5         0.5        0.5          0.24       L               FF
                                                                  5/24/96                                                            H               NO B/N
                                                                  6/6/96                                                             E               NO B/N
                                                                  6/14/96                                                            LF              -NO B/N
                                                                  7/10/9s                                                            @E              NO BIN
                                                                  7/24/95                                                            E               NO B/N
                                                                  11/7/95             0.24        0.24       0.24         0.24       H               FF
                                                                  2/20196             0.24        0.24       0.24         0.24       w               FF
                                                                  4/25196             0.24        0.24       0.24         0.24       tE              FF
                                                                  5/28/96             0.24        0.24       0.24         0.24       LE              FF
                                                                  GEOMEAN.            0.36        0.34       0.27         0.24
                                                                  SMEV                0.40        0.31       0.11         0.00
                                                                  COUNT               a           -6         a            a

                                                                  RH-5DEEP
                                                                  DATE      _         FC          ED Entemccocl           CID        TIDE            FILTER
                                                                  12/7/95                                                            LF              NO WELL
                                                                  219195              0           0          134          0          L               a NON
                                                                  3/15/95             0.49        0.49       0.49         0.49       H               FF
                                                                  4/18195             0.24        0.24       0.5          0.24       L               FF
                                                                  5/24/95             0.24        0.24       0.24                    H               FF
                                                                  8/6/95              0.24        0.24       0.24         0.24       E               FF
                                                                  6/14/95             0.24        0.24       0.25         0.24       LF              FF
                                                                  7/10/95             0.24        0.24       0.24         0.24       @E              FF
                                                                  7124/95             0.24        0.24       0.24         0.24       E               FF
                                                                  11/7/95             0.49        0.49       0.49         0.49       H               FF
                                                                  2/20/96                                                            w               NOB
                                                                  4/25/96                                                            LE              NO B/N
                                                                  5128/96                                                            LE              NO@U@
                                                                  r
                                                                  EOM                                        .32          0.29
                                                                  TDEV      1         0.12        0.121      0.131        0.12
                                                                  oSM"olp   1         8 1         1111       a   1        7










                                                                                                                     TABLE 8E: Site RP-Nutrient Database



                                                                                                                                       TSS        %OM     I       DATIE         N03                 N03-N I NH
                                                                                                                     AJL- TEMP -R20 -DEPTH --                                                                                         4NH4-N DINIPO4              P044-To@ @,IUTERI-
                                                                                                                     1116igs110.00 10.001 - 26.40                 1116195       725.80 1            10.161 30.09                      0.42 10.58 0.16             0.01HI      m
                                                                                                                     2/9195j7.50 8@001 12- 7-0                    2/9/95        986.95              13.82 21.90                       0.31 14.12 0.27             0.02L       S
                                                                                                                     3/15/95 5.50 7.00 7.04 6.75 6.67 40.00       3/15/gS       23.77               0.33 32.24                        0.45 0.78 3.99              0.31H       FF_
                                                                                                                     4/20/95 3.00 7.32                            4120195       50.37               0.71 26.19                        0.37 1.07 0.67              0.05L       FF
                                                                                                                     5/18195 8.00 7.13 7.21 20.00 15.00           5118195       0.32                0.00 39.20                        0.55 0.55 4.91              0.39L       FF
                                                                                                                     5/24/95 6.00 7.33 7.55 10.40 25.00           5/24/95       1.47                0.02 36.53                        0.51 0.53 1.43              0.11H
                                                                                                                                                  5.62                          5.14                                                  0.64                        --@- --UF@FF
                                                                                                                     6114/95 12.00 12.00 7.14 7.42 53.40          61IC95                            0.07 45.51                        0.71 11.30                  .89
                                                                                                                     7/10/95 13.00 17.50 7.26 7.74 691.50 19.96   7110195       0.46                0.01 126.80                       1.78 1.7810.13              0.01 HE
                                                                                                                                                  18.60           7/24195       1
                                                                                                                     7/24/95 13.00 21.50 7.82 go .80                            0.89                0.01 51.17                        0.72 0.73 0.66              0.05E       NOB
                                                                                                                     1117195 21.00 7.38                           11/7/95       33.48               0.47 28.06                        0.39 0.86 2.64              0.21H       FF
                                                                                                                     1215195 17.0017.15 7.50                      12/5195       6.39                0.09 68.11                        0.95 1.04 0.21              0.02 HF     PF
                                                                                                                     4)23/96 19.D0 7.01 7.30                      4/23/96       4.55                O@06 176.75                       2.47 2.54 0.25              0.02L       FF
                                                                                                                     MEAN. 11.25 12.67 7.26 7.43                  MEAN.                             2.15                              0.80 2.94                   0.175
                                                                                                                     MEDIAN 11.00 11.00 7.21 7.46                 MEDIAN                                                              0.53 0.95                   0.052
                                                                                                                     STDDEV 5.64 5.71 0.23 0.37                   STDDEV                            4.67                              0.66 4.50                   0.260
                                                                                                                     N-12 -6 -to-6                                N                                 12                                12 12                       12
                                                                                                                     ------------ I- - -          -jlW,-E,-l-:,R-P-12-,- -                          -                                 I
                                                                                                                     9WC'rlbW- PH H20 DEPTH       %OM                           N03                 N03-N f NH4                       NH4-N DIN P04               P04 TIDE    FILTER
                                                                                                                     1/16195 13.00 8.90 28.10                     1/16/95       201.35              2.82 102.54                       1.44 4.25 1.74              0.14H       m
                                                                                                                     2/9/95 11.00 6.00 7.1 23.10                  2/9/95        39.96               0.56 54.45                        0.76 1.32 0.08              0.01L       S
                                                                                                                     3115195 6.60 5.40 7.12 3.5 16.33 31.58       3115/95       9.97                0.14 14.23                        0.20 0.34 12.84             1.01-H
                                                                                                                     4120195 3.00 7.32                            4120/95       1,42                0.02 29.51                        0.41 0.43 0.37              0.03L       FF
                                                                                                                     5/18/95 4.00 7.17 7.90 25@20 14.29           5/18195       6.30                0.09 26.94                        0.38 0.47 1.92              0.15L       PF
                                                                                                                     5124/95 7.00 7.30 8.43 9.60  18.75           5124/95       6,76                0.09 43.04                        0.60 0.70 3.90              0.31H       PF
                                                                                                                     10.00 12.00 7.36 --i-.4-2 -T5-020 3.33       6114/95                                                             1.30
                                                                                                                     6/14/95                                                    1.76                .02 91.36                         1.28 0.74                   0.06 LF     FF
                                                                                                                     7/10/95 7.00 38                              7110195                                                                                         HE          NO BIN
                                                                                                                     7124195118.67     1                          7124;95                                                                                         E140 SAMPLE
                                                                                                                     11/7/95 11.00 7.26                           1117195       59.98               0.84 52.22                        0.73 1.57 0.11              0.01H       FF
                                                                                                                     12/5/95 11.00 6.21 8.32                      12/5/95       T-21                0.04 81.85                        1.15 1.19 1.13              -@. 0-9 -W  PF
                                                                                                                     4123@96 8.18                                 4/23196                                                                                         L           NO B/N
                                                                                                                     8.53 8.08 7.10 7.73                          MEAN.                             0.51                              0.77 1.29                   0.200
                                                                                                                     MEDIAN 10.00 7.45 7.19 8.35                  MEDIAN                            0.09                              0.73 1.19                   0.089
                                                                                                                     STDDEV 3.48 3.03 0.35 1.72                   STDDEV                            0.91                              0.4
                                                                                                                     N940      a                                  N                                 9                                 99                          9
















                                                                                                                     DATE TEMP 14 H20 DEPTHI TSSI %-O-M           DATE          N03                 N03-N NH4 I NH4-N I               ONIP04                      P04 TOE     FILTER
                                                                                                                     1/16/95 . 017.44  112.60                     1/16/95       1 74.50             1,04 20.96-j- 0 29 1              1.34 1.22                   0.10H       M
                                                                                                                     2/9/95 7@50 6.001 126.90                     2/9/95        110% 772            -T 4-8 34.34 1 0.40 1             1.96 0.08                   0.01L       S
                                                                                                                     3/15/95 6.50 6.00 7.15 7.82 6.00 27.78       3/15/96       1.                  0.12 224.641 3.14 1               3.27 I.U                    6.08 -H     PF
                                                                                                                     4/20/95 5.00 7.42                            4/20/96       1226.09             3.17 703.97                       lj@.@02 1-42                0.11-L      FF
                                                                                                                     5118/gs 6.00 7.2S 8.30 301.00 16.28          5/18/95       85.16               1.19 24.03                        30.75                       0.06L       FF
                                                                                                                     5/24/96 5.00 7.22 9.11 10.80 -16.67          5/24/95       46.96               0.66 42.81                        O@60 1.26 7.84              0.62H       @F-
                                                                                                                     6114/95 6.00 10. 8.54 4.60   26.09           6/14/95       421.17              5.90 46.45                        0.6S 6.55 13.84             1.09 LF     FF
                                                                                                                     7/10195 5.00 8.78 26.20      6.11            7/10/05       327.19              4.58 27.69                        0.39 .97 17                 0.01 HE     FF
                                                                                                                     7/24/96 9.07                                 7124/95                           1                                 1                           E40 SAMPLE
                                                                                                                     20.00 7.14-                                  11/7195       -25.66              0.36 64.18                        0.76 1.12 1.01              0.08H       PF
                                                                                                                     12/5/95 17.00 6.49 8.37                      1215196       3.81                0.05 23.02                        0.32 0.38 0.48              0.04 FIF    PF
                                                                                                                     4/23/96 14.00 5.93 8.30                      4123/96       59.15               0.83 97.64                        1.37 2.2010.47              0.04L       PF
                                                                                                                     MEAN. 9.16 10.28 7.09 8.41                   MEAN.                             1.76                              1.65 3.42                   0.203
                                                                                                                     MEDIAN T -50 9.20 7.24 8.34                  MEDIAN                            1.04                              0.6011.96                   0.080
                                                                                                                     STODEV 5.33 5.31 0.50 0.39                   STDDEV                            1.94                              2.8413.08                   0.34111
                                                                                                                     NI 15108                                     N                                 I I                               I II I                      I

                                                                    WELL RP4 I                                                                          WELL RP-4
                                                                    ---6rTf-l SAL                                    TEMP PH" H20 DEPTH TSS       %Om                           f-R055-             N03-N NH4                         NH4-N DIN P04               P04 TUE     FILTER
                                                                                                                     1/16/9S 16.90 9.10 16@30                     V16195        75.46               1.06 116.97                       1.64 2.69 0.83              0.07H       M
                                                                                                                     2/9/95 870-0- -i -00-24.70                   2/9196        70.S6               0.99 62.13                        0.73 1.72 0.04              0.00L       S
                                                                                                                     3115/95 13,90 6.80 7.19 7.19 7.00 23.81      3/16/95       12.37               0.17 19.57                        0.27 0.45 4.33              .0.34H      FF
                                                                                                                     4/20/95 --5-.oo 7.35                         4/20/96       23.92               0.33138.42                        0.54 0.8711. 85             10.15L      FF
                                                                                                                     5/18/95 9.00 7.08 7.55 9.20  21.74           5/18/95       2la74               oa30 57.61                        0.81 1.11114.261            IA3L        FF
                                                                                                                     5/24105 10@00 7.07 7.38 7.00 25.71           5/24/96       2.29                0.03 58.40                        0.82 0.8617.32              0,68_H      PF
                                                                                                                     6/t4/96 12.00 10.0 7.00 g.04 11.50 17.39     6/14195       7.87                0.11 30.32                        0.42 0.53 18.13             1.43 LF     PF
                                                                                                                                                                  7/10/96       1 25.05                                               7-
                                                                                                                     14.00 IS.20 7.35 8.15 28.00  19.29                                             0.35 124.06                       .74 i.-o -9 T1 -0 -0. 0 1   HE          FF
                                                                                                                     ';4
                                                                                                                     ;I/113.00 17.001 7.5618.46 41.20119.90       7/24/96       1 8.43              0.1-2 46.36                       0.64 0.76 3.24              0.26E       PF
                                                                                                                     11/71951ROD ---F7-2-01                       11/7/95       -13.05              0.18 141.S3.                      1.98 2.16 5.83              0.46H       FF
                                                                                                                     1215/96 0.00 17.12 1.10                      12/5195       5.47                0.06 66.89                        0.94 1.01 0.79              0.06 IF     FF
                                                                                                                     -L- , ..0 . I--i- - -
                                                                                                                     4/23/96 21... @6 .79                                       3.05                0.04 70.77                        0.99 1.03_ 0.23             0.021L      PF
                                                                                                                     2
                                                                                                                     3
                                                                                                                     1
                                                                                                                     9
                                                                                                                     6
                                                                                                                     9
                                                                                                                     5
                                                                                                                     5
                                                                                                                     a
                                                                                                                     4'209507
                                                                                                                     7
                                                                                                                     4
                                                                                                                     4


                                                                                                                     5
                                                                                                                     7-42
                                                                                                                     7 2S
                                                                                                                     ,22
                                                                                                                     N.27
                                                                                                                     177
                                                                                                                                                                                                                                      --N
                                                                                                                                                                                                                                      042
                                                                                                                                                                                                                                      031
                                                                                                                                                                                                                                      04,
                                                                                                                                                                                                                                      @O3 7


                                                                                                                     F
                                                                                                                     'o
                                                                                                                     6
                                                                                                                     00
                                                                                                                     5 40




                                                                                                                     12






































                                                                                                                     /7/057.4
                                                                                                                     8.S8F6 4
                                                                                                                     524/.'
                                                                                                                     r
                                                                                                                     6,14,
                                                                                                                     7,10,
                                                                                                                     7' 24'.
                                                                                                                     ... 7,.@
                                                                                                                     12,",
                                                                                                                     4,23", ,3















                                                                                                                                                                  710'9 6
                                                                                                                                                                  724/96
                                                                                                                                                                  17195
                                                                                                                                                                  12"'IS
                                                                                                                                                                    ,6
                                                                                                                                                        W43
                                                                                                                     MEAN. 13.48 11.37 7.15 7.03                  MEAN.                             0.                                0.96                        0.375
                                                                                                                     MEDIAN -5-.4 510.5017.16 7.02                MEDIAN                                                              1.02                        201
                                                                                                                     STDDEV IF2-2' 8 1 0;25 %4 3
                                                                                                                     4                                            STDDEV                                                              :::u466
                                                                                                                     N12                                          N                                 121                               12                          12











                                                                                                                                                     EP
                                                         WELL:RP-50EEP
                                                                                                                           %OM         DATE          IN03              I N03-N I NH4 I NH4-N      DIN I P04         P04 I TIDE FUER
                                                                 1116195       7.70  10.90                      3.30                   1/16/95       0.00              0.00 278.58 1    3.90      3.90 1105.791 8.3        HI    M
                                                                 2/9/95                                                                2/9195                                                     :::@@                    L   NO BIN
                                                                 3/15195       8.50  8.20   7.27                73.33      20.00  L-3/1 6/96         6.16              0.07 -141.74     1.98      2.06122.501       1.78   H     FF
                                                                 4/20/95                                                          :: 4 @/2 0 / 9 5                                                1                 1-L        NO B/N
                                                                 5/18/95       5.00         7.21        11.20   320.00     15.63  1    5/18/95       0.81              0.01 367.24      5.14      S.15 50.85        4.02   L     FF
                                                                 5/24/95       6'02         7.20        8.65    36.00      8.33        5/24/95       1.50              0.02 206.96      2.90      2.92 17.51        1.38   H     PF
                                                                 6114/95       4.00  0.,o   7.29        10.74   34.00      25.88       6114/95       9.74              0.14 0.00        0.00      0.14 29.96        2.37   LF    FF
                                                                 7/10/95       5.00  13.00  7.86        6.98   -iO9.50     15.19       7/10/95       1.67              0.02 198.87      2.78      2.81 0.14         0.01   I-E   PF
                                                                 7/24/951      4.00  16.00  7.76        8.35    114.67     18.60       7/24/95       1.46              0.02 35.98       0.50      0.52 4.32         0.34   E     PF
                                                                 11/7/95       3.00         7,16                                       11/7/96       0.22              0.00 165.34      2.31      2.32 0.24         0.02   H     FF
                                                                 12/5/95       300       1  7.63  1     6.27            1              12/5/96       5.54              0.081133.95      1.88      1.96 1.07         0.08   w     PF
                                                         -4/23196              200   17.00  7.49  1     9.55                           4123/96       4.07              0.06 24.67       0.35      0.40 0.20         0.02   L     FF
                                                                 MEAN.         4.82  12.60  7.43        8.82                           MEANx                           0.04             2.17      2.22              1.837
                                                                 MEDIAN        4.50  11.95  7.29        6.65                           MEDIAN                          0.02             2.15      2.19              0.862
                                                                 STDDEV        2.09  3.40   0.26        1.83                           STDDEV                          0.04             1.62      1.59              2.646
                                                                 N             10    -6                 7                                 N                            10               10        10                10

                                                                                                                                  !iv-FCL-. RP/RC-1
                                                                               SAL   TEMP   PH    H20 DEPTH N03            N03-N  1    DATE          N03               N03-N NH4        NH4-N     DIN P04           P04    TIDE FLTER
                                                                 4/23/96       19    16     7.12        3.19                           4123/96       5.44              0.076 15.74      0.2204 0.2965 2.87          0.2267 L     PF
                                                                 5/28196       6     14     7.35  1     S.5                            5/28/96         0               0117.51          1.6451    1.6451 15.79      1.2472 E     FF
                                                                 MEAN.         12.5      is 7.241       4.345                          MEAN.                           10.0381          0.93      0.97              0.73691
                                                                 MEDIAN                                                                MEDIAN                          0.038  1         0.93 1 0.97                 0.7369
                                                                 STDDEV                                                                STDDEV                          0.054            1.01      0.95              0.7216
                                                                 N                                                                        N                            2                2         2                 2

                                                                                                                   - - -- - - - - - --               -
                                                         WECL7ifFaF6f                                                             WELL: RPIRC-2
                                                                                                  H20 DEPTH N
                                                                                     TEMP pH                       03      N03-N                                       N03-N NI-14      NH4-N     DIN P04           P04    TIDE FLTER
                                                                 4123196       12    14     7.28        5.1                            4123/96       6.82              0.095 60.53      0.8474 0.9429 1.235         0.0975 L     FF
                                                                 5/28/96       i-    14.5   7.29        4.95                           5/28/96         0               019.37           0.2712 0.2712 9.827         0.7761 E     PF
                                                                 MEAN.         10    14.25  7.29        5.025                          MEAN@                           0.048            0.56      * ' 1             43 a
                                                                 MEDIAN                                                                                                10.048           0.56      .11               !::43:
                                                                 STDDEV                                                                                                10               0.41      0.47
                                                                                                                                                                       2                2         2
                                                                                                                                                                       .068                                         0.479:@-
                                                                 N                                                                                                                                                  2



















                                                         WELL: RPIRC-3                                                                       P/RC-3
                                                                                     TEW pH       H20 DEFrH N03            N03.N       Mli--F N03                      N03-N N144       NH4-N     DIN P04           P04    TIDE FILTER
                                                                 4/23/96       10    13     7.071       3.1                            4/23/96       5.23              0.073 16.95      0.2373    0.3105 5.04       0.3981 L     FF
                                                                 6/28/96       13    15.1   7.271       3.07                      1    5/29/96       1.72              0.024 32.64      0.457     0.481 1.442       0.1139 E     PF
                                                                 MEAN.         11.5  14.05  7.17        3.085                          MEAN.                           0.049            0.35      0.40              0.256
                                                                 MEDIAN                                                                MEEXAN                          0.049            0.35      0.40              0.256
                                                                 STDDEV                                                                M                               0.035            0.16      0.12              0.2009
                                                                 N                                                                        J@EV                         2                2         2                 2
                                                                                                                                  -4R-irc---RFiR-C-4
                                                                                     TEMIP pH H20DEFrH N03                 N03-N                                       N03-N N144       NH4-N     DIN P04           P04    TIDE FILTER
                                                                 4/23/96       6     12     7.29        5.69                           4/23/96       6.25              0.088 229.24     3.2093 3.2968 9.579-        0.7534 L     PF
                                                                 5/28/96       22    14.7   7.33        3.18                           6/28/96       1.09              0.015 26.34      0.3688 0.3939 1.361         0.1075 E     PF
                                                                 MEAN.         14    13.35  7 31        4.385                          MEAN.                           0.051            1.79      1.84              0.430
                                                                 MEDIAN                                                                MEDIAN                          0.031            1.70      1.84              0.430
                                                                 STDDEV                  +-+                                           STIDDEV                         0.051                                        0.457
                                                                 N                                                                        N                            2                2         2                 2
                                                         F
                                                                 16 '95
                                                                 2'9/ 95
                                                                 3,
                                                                 2o'.5
                                                                 1 ,.5
                                                                 24/,5
                                                                 64




                                                                                                                                                                                                                            ------------

                                                                                                                                                                                                                            DATE         I      FC            Ec  I Enteroocod           CP          TIDE     FLTER
                                                                                                                                                                                                                            111619S             0             0            a             a           H          m
                                                                                                                                                                                                                            219195              0             0            0             0           L          S
                                                    TABLE BE: Site RP-Mlcrobiological Database                                                                                                                              3/15/95             0.24          0.24         0.24 _        0.24        H          FF

                                                                                                                                                                                                                            5/18/95             0.25          0.25         0.24          0.24        L          FF
                                                                                                                                                                                                                            5/24/96             0.24          0.24         0.24                      H          FF
                                                                         FC           ED  Enteroccod              CP          TIDE            FLTER                                                                                                                                                      1
                                                    1116195              10           10            5             60          H               m                                                                             6/14/95             0.24          0.24         0.24          0.24        LF         FF
                                                    9/95                 0            0             0             0           L               s                                                                             7/10/95             0.24          .24          0.24          0.24        w          FF
                                                    --3-/ 15 -/9 5-71                 42            0.24          0.24        H               FF                                                                            7/24/95             0.24          0.24         0.24          0.24        E          FF
                                                    -VI -20/95 -0 25                  0.24          0.24          0.24        L               PF                                                                            11/7/95             0.24          0.24         0.24          0.24        H          FF
                                                    5/18195              0.24         0.24          0'24          0.24        L               FF                                                                            12/5/95             0.24          0.24         0.24          0.24        w          FF
                                                    5124/95              0.24         0.24          0.24          0.24        H               PF                                                                            4/23/96             024           0 24         024           0.24        L          FF
                                                    6/14/95              0.25         0.25          0.24          0.24        LIF             PF                                                                            GEOMEAN.            0.24          0.24         0.24          0.24
                                                                                                                                                                                                                            SMEV                0.00          0.00         0.00          0.00
                                                    7/10/95              0.24         0.24          0.24          0.241       w               PF                                                                            00UNT               10            10           10            9
                                                    7/24/95                                                                   E               NOB
                                                    11/7/96                                         0.24          0.24                        FF                                                                            - - - - - - ---
                                                                         24           0@@                                                                                                                                   WELL RP-5 DEEP
                                                    1215/96                           24            0.24          0.24        FF              PF
                                                    4/23/96              0.49         0.49          0.49          0.49        L               PF                                                                                         -FC         -M           lr-49roccoci           CP          ME       PLTER
                                                    GEOMEAN-             0.49         0.46          0.26          0.26                                                                                                      1116195             0             0            0             0           H          m
                                                    STDEV                23.58        13.91         0.08          0.08                                                                                                      2/9/96                                                                   L        NO BtN
                                                    -06uw- -9                         9             2             9                                                                                                         3/15/95             0.24          0.24         0.24          0.24        H          FF
                                                                                                                                                                                                                            4/20/95                                                                  L        NO BM
                                                    WEEW.P-2-                                                                                                                                                               6/18/95             0.24          0.24         0.24          0.24        L          FF
                                                    DATE                 Fr-          9:  Enlem=od                CP          TIDE            FLTER                                                                         5/24195             0.24          0.24         0.24                      H          FF
                                                    1116195              0                          18            10          H               m                                                                             6/14195             0.25          0.25         0.24 -0.24                LF         FF
                                                                                      0                                                                                                                                     7/10195             0.25          0.24                       0.24        w          FF
                                                    --V-9195             0            0             1             0           L               s                                                                             7/24/95             0.24          0.24         0.24          0.24        E          FF
                                                    3/15/95              0.24         0.24          0.5           0.24        H               FF                                                                            11/7/95             0.49          0.49-        0.49          0.49        H          FF
                                                    4/20/95              0.24         0.24          0.24          0.24        L               FF                                                                                         -
                                                    5/18195              0.24 ----6-.24 -0.24                     0.24        L               PF                                                                            12/5/96                           0.24 --F2-4                0.24        HF
                                                    5/24195              0.24         0.24          0.24          0.24        H               FF                                                                            4/23/96             0.24          0.241        0.24          0.24        L
                                                    6/14/95              0.75         0.75          0.24          0.24        LF              FF                                                                            GEOMEAN.            0.26          0.26  _1     0.26          0.26
                                                    7/10/95                                                                   @E              NO B/N                                                                        SMEV-               0.08          0.08::: @00 9     -0.09-
                                                    7/24/95                                                                   E     NO SAMPLE                                                                                  uNr              9      __9                 8             a
                                                    11/7/95              0.09         0.09          0.09          0.09        H               FF
                                                    1215/95                                                                   w               NOB                                                                           - - - - - - - -
                                                    4/23/96                                                                   L     NO SAMPLE                                                                               WELL FRIP/MR
                                                    GEOMEAN6             0.25         0.25          0.23          0.20                                                                                                                          FU            EC  Entemowd               CP          TIDE     FUM
                                                    STDEV                0.23         0.23          0.13          0.06                                                                                                      4/23/96             0.24          0.27--       0.24          0.24        L          FF
                                                    ODUNr                6            6             6             6                                                                                                         6/28/96             0.24          0.24         0.24          0.24        LE         FF
                                                                                                                                                                                                                            GEOMEAN.            0.24          0.24         0.24          0.24
                                                    --------- --
                                                    WELL: Rp-3 --- 00UNr -                                                                                                                                                                      2             2            2             2
                                                                 -FC                  ED   Entero=oci             CP          TIDE            FUM                                                                           - - - - - - -
                                                    1116195              0            0             too           0           H               m                                                                             WELL: RPIRC-2
                                                    21919S               0            0             0             0           L               S                                                                                          -FC                  ED  Enteroccod             (P          ME       FLTER
                                                    3/15/95              0.49         0.49          0.49          0.49        H               FIF                                                                           4/23/96             0.24          0.24         0.24          0.24        L          FF
                                                    4/20/95              0.24         0.24          0.24          0.25        L               PF                                                                            5/28/96             Of24          0*24         045           Om24        LE         FF
                                                    5/18/9s              0.24         0.24          0.24          0.24        L               FF                                                                            GEOMEAN.            0.24          0.24         0.3S          0.24
                                                    5/24/95              0.24         0.24          0.24          0.24        H               FF                                                                            couNr               2             2            2             2
                                                    6/14195              0.25         0.25          0.25          0.24        LF              PF                                                                            -------- ---
                                                    7/10195              0.24         0.24          8.25          0.24        I-E             FF                                                                            WELL: RP/RC-3
                                                    7124/95                                                                   E     NO SAMPLE                                                                               -5R ffi@FF                        EE  Enteroocod             CP          ME       FLTM
                                                    11/7/95              0.24         0.24          0.24          0.24        H               PF                                                                            4/23/96             0.24          0.24         0.24          0.24        L    -FF
                                                    12/5/95              0.24         0.24          0.251         0.24        W               FF                                                                            5/28/96 _           0.24          0.24         0.24          0.24        LE         FF
                                                    4/23/96              0.49         0.49                                    L               FF                                                                            GEOMEAN.     -T2-4                0.24         0.24          0.24
                                                                                      0
                                                                                      0             5             6
                                                                                                                  0
                                                                                                                  0

                                                                                                                  0,
                                                                              42*24
                                                                                      24                          0. 24
                                                                                      24                          024
                                                                                      024                         024
                                                                                      02@                         0. 24
                                                                                      0@4                         '. 24

                                                                                      024                         0. 24
                                                                                      0. 24         0.24          0. 24




































                                                                                      0 24
                                                                                      024
                                                                                      0. 4.
                                                    GEOMEAN.             0.28         0.28          0             0.26                                                                                                      O0twr               2             2            2             2
                                                    STDEV                0.11         0.11          212           0.09
                                                    COUNT                9            9             8             8              EEEI                                                                                       WIFLEA       4
                                                                                                                                                                                                                                                FC            ED  Enteroccod             cp          ME       FLTER
                                                                                                                                                                                                                            4/23/96             0.24          0.24         24            1@24
                                                                                                                                                                                                                                                              0.24         0@            0
                                                                                                                                                                                                                            5128/96             0.24                       o 24          24
                                                                                                                                                                                                                            GEOMEAN--           0.24          0.24         24            0.224
                                                                                                                                                                                                                            00UNT                             2            2













                                                                  USU OF: Sit. RC-Nutlnt Detab.se

                                                                  WELL RO I DEEP                                                      i- WELL FICA DE            um           mg/L                m         mg/L     mg/L         um        mg/L
                                                                                DATE       SAL                TEW pH IH20DEPTH ISS I %OM           DATE          N03          M03-N               NK4       NH4-N    DIN          P04       P04         TIDE           FLIER
                                                                                1/16195    8@80               11.00          22.501                1/16105       1071.87      15.01               1167.06   16.34    31.36        7@38      0,58        H              S
                                                                                219/95     9.50               8.00 7.09      24.70                 219/95        139.22       1.95                1193.34   16.71    18.66        0.16      0.01        L              s
                                                                                3123/95    10.00              6.92 9.21      20.60    10@68        3123/95       31.01        0.43                837.91    11.73    12.16        1@16      0.09        L              FF
                                                                                4/20/95    6.00               6.99                                 4/20/95       1285.62      18.00               644.29    9.02--   -27.02       61.17     4.83        L              FF
                                                                                5118195    6.00               7.02 9.00      24.80    15.32,       5/1 8/_95     217.84       3.05                612.42    8.57     11.62        5.59      0.44        L              FF
                                                                                5/24/95    6.00               7.02 10.15     12.60    12.701       6/24/95       135.15       1.89                492.77    6.90     8.79         5.10      0.40        H              FF
                                                                                6/14195    5.00               11.90 6.88 10.03 26.60  6.26         6/14/96       39.86        0.56                8.98      0.13     0.68         12.97     1.02        IF             PF
                                                                                7/10/95    9.00               13.50 7.10 10.34 22-60  17.70        7/5195        2.27         0.03                203.50    2.86-    2@88         SO.21     3.97        HE             FF
                                                                                8/23/95    6.00               16.20 7.21.9.13 64.60   26.36        8/23/96       0.48         0.01                19.99     Ow27     0.27         13.39     1 06        H              PF
                                                                                11116195   2600                    9,34                            11/16/96      35189        oa5o                139a96    1.96     2.46         6.88      0.54        W              PF
                                                                                121519 5   20,@()             6.95 10.20                           12/6/95       463.07       6.48                307.75    4.31     10.79        1.20      0.10        w              PF
                                                                                           18.00              4.00 7.01 10.42                      3/12196       641.14       8.98                54.50     0.76     9.74         0.34      0.03        LE             FF
                                                                                C26196     21-00              12.80 7.23 9.47                      4/26/96       51.64        0.72                37@76     0.53     1,25         0.48      O@04        LE             FF
                                                                                MEAN.      11.68              11.06 7.05 9.73                      MEAN.                      4.43                          6.16     10.59                  1.009
                                                                                MEDIAN     9.00               11.90 7.02 9.75                      MEDIAN                     1.89                          4.31     9.74                   0.441
                                                                                STDDEV     7.11               3.99 0.12 0.55                       STDDEV                     6.02                          5.93     0.96                   1.555
                                                                                N          13                 711  10                               N                         13                            13       13                     13

                                                                  WELL: RC-2                                                                  WELL: RC-2
                                                                                DATE       SAL                113@!P PH H20 DEPTH TSS %Om          DATE          N03          N03-N               NH4       NH4-N    DIN          P04       P04         TIDE           FLIER
                                                                                1116/95    9.30               11.00 7.31     2.40                  1/16/95       5.47         0.08                236.61    3.31     3.39         31,62,    2.50        H              S
                                                                                2/9/9S                                                             2/9/95                                                                                               L              NO B/N
                                                                                                                   11.00                           3/23/95                                                                                              L              NO S/N
                                                                                4/20/96    4.00               6.99                                 4/20196       8.61         0.12                582.19    8.15     8.27         32.76     2.59        L              NOB
                                                                                5118/95    6.00               7.13 13.50     80.00    16.86        5/18/95       2.12         0.03                377.00    5.28     5.31         65.03     5.14        L              FF
                                                                                5/24/95    8.00               7.45 9.12      440.00   5.45         SliCllfi      0.62         0.01                216.89    3.04     3.05         65.85     6.20        H              PF
                                                                                6114105    8.00               10.60 7.04, 10.85 29.60 14.19        8/14/95       4.37         0.06                0.46      0.01     0.07         28.50     2.25        LF             PF
                                                                                7/10/95    110.00             15.50 7.121 9.35 739.00 1.04         7/10/95       26.01        0.36                1017.72   14.2S    14.61        0.64      0.05        HE             PF
                                                                                8/23/95    25.00              7.021 10.27    99.67_ 0.70           8/23195       8.15         0.11                644.78    9.03     9.14         0.22      0.02        H              PF
                                                                                11/16/95   6.00                    6.10                            11/16195      0.57         0.01                385.03    5.39     5.40         0.24      0.02        W              PF
                                                                                1215195    5.00               7.42 8.50                            12/5/95       5.10         0.07                179.88    2.52     2.59         1.40      0.11        IF             PF
                                                                                3/12196    5.00               9.50 7.35                            3/12/96       --0.47       0.01                60.34     OaSAI    0.85         0.17      0.01        LE             PF
                                                                                4/26196    2.00               12.20 7.40 13.5                      4/26/96       4.40         0.06                25.64     0.36     0.42                   .01         LE             FF
                                                                                MEAN.      8.03               11.74 7.22 10.44                     MEAN.                      ::.0:                         4: "1,,l 4.83                   1.62
                                                                                MEDIAN     4.00               11.00 7.22 10.27                     MEDIAN                                                            3.39                   0.111
                                                                                STODEV     6.10               2.32 0.18 1.93                       STDDEV                     0.10                          4.33     4.41                   2.054
                                                                                N          1                  510  9-                               N                         I I                           I I      I I                    I I


















                                                                  WELL: RC-3                                                                  WELL: RC,3
                                                                                DATE       S@L                TEW pH H20 DEPTH ISIS   %OM          DATE          N03          M03-N               NH4       NH4-N    DIN          P04       POO         TIDE           FILTER
                                                                                1/16195    4.70               10.50          8.40                  1/16/95       1003.48      14.05               1161.34   16.26    30.31        11.97     0.95        H              S, Me Intc
                                                                                219/95     7.00               8.50           24.00                 2/9/95        73.47        1.03                1104.66   15.47    16.49        3.95      0.31        L              S, me into
                                                                                3/23/95    16.50              7.00 6.35      11.40    21.05        3/23/05       722.19       10.11               1145.98   16.04    26.16        13.44     1.06        L              FF
                                                                                4/20/95    5.00               7.09                                 4/20/95       79.57        1.11                10.39     0.15     1.26         8.96      0.71        L              FF
                                                                                5/18/96    2.00               7.19 7.iO      11.00    23.64        5/10/95       125.12       1.75                320.16    4.48_    6.23         63.34     4.21        L              FF
                                                                                5/24/95    18.00              7.111 7.85     7.40     21.621       5/24/95       204.96       2.87                107.611   1.51     4.38         112.02    0.95        H I            PF
                                                                                6/14195    4.00               13.20 6.79 a. 17 17.20  11.631       6/14/95       1535.251     25.69               0.78      0.01     25.70        15.47     1.22        LF             PF
                                                                                7/10/95    -5.00              16.00 ii.ee a.so 4.57   31.25        7/10/95       1296.64      18.15               126.35    1.77     19.92        5.85      0.46        FIE            FF
                                                                                8/23/95    2a.oo              16.70 6.71 7.80 7.80    20.51        8123195       27,19        0.36                10.36     0.15     0.53         5.56      0.44        H              FF
                                                                                11/16/95   19.00                   7.76                            11116/95      61.52        1.14                28.60     0.40     1.54         4.52      0.36        W              PF
                                                                                12/5196    11.00              6.90 8.53                            1215/95       626.33       7.40                16.39     0.23     7.63         0.24      0.02        W              FF
                                                                                3/12/96    16.00              6.21 8.65                            3112196       52.44        0.73                44.78     0.63     1.36         2.48      0.20        LE             FF
                                                                                4/26196                            8.35                            4/26/96                                                                                              LE             NO B/N
                                                                                MEAN.      11.43              13.34 6.83 7.99                      MEAN.                      7.04                          4.76     11.79                  0.907
                                                                                MEDIAN     .9.50              13.20. 6.90. 9.04                    MEDIAN                     2.31                          1.07     6.93                   0.504
                                                                                STDDEV     7.70               4.10 0.301 0.66                      STDDEV                1    0.34                          6.85     11.22                  1.106
                                                                                N          12                 59 1 10                                N                        12                            12       12                     12

                                                                  WELL RC4                                                                    WELL R04
                                                                                DATE       SAL                TEMP H2D DEPTH          %OM          DATE          N03          NO"                 NH4       NH4.N    DIN          P04       P01 - TIDE                 FLIER
                                                                                1116/95    15.10              8.90           10.30                 1/16/95       21.15        0.30                1303.97   18.26    18.55        39.71     3.14        H              S
                                                                                219/96     14.00              11.00          12.70                 2/9/96        59.20        0.83                1097.87   15.37-   16*20        0.42      0.03        L              S
                                                                                3123/95    5.00               7.08 6.00      23.00    26.90        3/23195       30.41        0.54                .612.86   8.56     9.12         64.46     6.67        L              PF
                                                                                4120/95    ,6.00              7.09                                 4/20/95       126.06       1.79                1123.64   15.73    17.52        3.30      0.26        L              FF
                                                                                5/16/95    6.00               7.14 6.95      148.00   21.92 1      5/18195       1237.08      17.32               447.13    6.26     23.68        50.66     4.00        L              PF
                                                                                5/24/95    8.00               7.25, 4.30     3.80     31.58        5/24/95       169.19       2.37                465.77    O.S2     8.89         87.45     6.91        H              FF
                                                                                6/14/95    10.00              13.00 7.481 7.16 7.60   23.68        6/14195       262.05       3.67                2.29      i,.-o 3  3.70         33.70     2.66        LF             FF
                                                                                                                                                                                                            M'L
                                                                                                                                                                                                            __N
                                                                                                                                                                                                  1 @64
                                                                                                                                                                                                            7
                                                                                                                                                                                                            173
                                                                                                                                                                                                            02
                                                                                                                                                                                                            57
                                                                                                                                                                                                  IS".
                                                                                                                                                                                                  @or
                                                                                23                                                                                                                -.9
                                                                                                                                                                                                  31..
                                                                                                                                                                                                  0
                                                                                95                                                                                                                R
                                                                                1'95
                                                                                125                                                                                                               371
                                                                                2                                                                                                                 @4
                                                                                S
                                                                  F46                                                                                                                             3 7
                                                                                MEAN-
                                                                                N

                                                                                N

                                                                                RV
                                                                                ATE
                                                                                                                                      0
                                                                                -6,5
                                                                                2'.S
                                                                                3,2395
                                                                                412

                                                                                52495
                                                                  P64
                                                                                                                             0@
                                                                                                                             4
                                                                                                                             [2
                                                                                                                             39
                                                                                                                             g..      6










































                                                                                                              @30
                                                                                                              9





                                                                                                              ,.o




                                                                                7/10/95    10.00              20.00 7.42 7.SO 16.60   21.69        7/10196       26.32        0.40                966.53    13.81    14.21        2.37      0.19_       HE             FF
                                                                                8/23/96    10.00              23.00 7.27 7.52. 48.00  16.67        8/23195       2.48         0.03                315.63    4.42     4.45         0.29      0.02        It             NOS
                                                                                11/16/95   14.00                   6.93                            11/36/05      1039oS!      14.65               265.75    3.72     18.27        0.18      0.01        w              NOS
                                                                                12/5196    18.00              6.41 7.36                            12/5195       172.16       2.41                385.16    5.39     7.80         0.50      0.04        W              PF
                                                                                3/12/96    10.00              5.77 7.55                            3/12196       0.00         0.00                6S.03     1.19     1.19         4.28      0.34        L              FF
                                                                                4/26/96    17.00              8.31 7.IL___                         4/26196       16.48        0.23                1052.11   14.73    14.96        1.96      0.15        LE             NO SIN
                                                                                MEAN.      11.62              15.34 6.92 6.76                      MEAN.                      3.42                          4.7      12.19                  1.979
                                                                                MEDIAN     10.00              13.00 7.12                                                      0.83                          6.32     14.21                  Oe261
                                                                                STIEV      4;67               5.91 0.56 1.03                                                                                0.08     6.81                   2.574
                                                                                           i+@                10i                                                                                           13       13









                                     TABLE 8F: Site RC-Mlcro lological Database            I         -T             i
                                                                                                                                                                                    WELL, RC-3
                                                                                                                                                                                         DATE                FC           ED   Enteroccoci          CP          TIDE
                                     WELL: RC-1 DEEP                                                                                                                                     1116195        1144                         4100      388              H    S, A40 ink
                                          DATE                FC         Ec    lEnteroccocil       CP    I   TIDE   I   FLTER                                                            219195         288          175             2100      333              L    S, A49 tnlc-
                                          1116195             17                    0              30    1      H          S                                                             3/23/95             10           10         4.9       2.i              L         FF
                                          219195              57         50         6              so           L          S                                                             4/20/95        4.75              3          1         0.24             L         FF
                                          3/23/95             7.5        7          2.75           0.49         L          FF                                                            5/18/95                          1          1.25      0.24             L         FF
                                          4/20/95             1          0.49       6.25           0.24         L          FF                                                            5/24/95        0.25         0.25            0.75      0.24             H         FF
                                          5/18/95             7          7          0.25           0.24         L          FF                                                            6/14/95        0.24         0.24            3.5       0.24             LF        FF
                                          5/24/95             3.5        1          1.5            0.24         H          FF                                                            7/10/95        0.24         0.24            54.25     0.25             HE I      FF
                                          6/14/95             7.75       3.75       8.5            0.24         LF         PF                                                            8/23/95        0.24         0.24            0.25      0.24             H         FF
                                          7/10/9,5            0.24       0.24       9.25           0.24         HE         FF                                                            11/16/95       0.25         0.24            0.24           4   -W                FF
                                          8/23/95             32.5       25.5       0.24           0.24         H          FF                                                            12/5/95        0.24         0.24            0.25      0.24             w         FF
                                          ll/l6f95            17.75      0.24       5.25           0.24         w          FF                                                            3112196                                                                L       NO
                                          12/5/95             0.24       0.24       0.24           0.24         w          PF                                                            4/25196                                                                LE I   NO B/N
                                          3/12/96             0.24       0.24       0.24           0.24         L          FF                                                            GEOMEAN.1      0.60         0.57            1.33      0.43
                                          4/25/96             0.24       0.24       0.24           0.24         L.E        FF                                                            STDIEV         3.37         3.24            17.65     1.38
                                          GEOMEAN-            2.05       1.06       1.22           0.26                                                                                  COUNT               9            9          9              9
                                          STDEV               9.99       7.56       3.54           0.08
                                          COUNT               I I        I I        I I            I I                                                                              WELL: RC-4
                                                                                                                                                                                         DATE                FC           ED   Enteroc=i            CP          TIDE   FLTER
                                     WELL: RC-2                                                                                                                                          1116195             0            0          3              0           H         S
                                          DATE                FC         m      Enteroccom         CP        TIDE                                                                        219195              0            0          0              0-          L         S
                                          1116195             0          0          0--            0            H          S                                                             3/23/96    1        1            1          0.25      0.24             L         FF
                                          2/9/95                                                                L       NO B/N                                                           4/20/95        0.24         0.24            0.24      0.24             -L        FF
                                          3123/95                                                               L       NO -B/N                                                          5/18/95        0.24         0.24            3.5       0.24   - ---     L         FF
                                          4/20/95                                                               L        NO B                                                            5/24/95        0.24         0.24            0.24      0.24             H         FF
                                          5/18/95             0.24       0.24       0.24           0.24         L          FF                                                            6/14/96        0.24         0.24            0.24      0.24             LF        FF
                                          5/24/95             0
                                                              0@24
                                                              24         0 @ 2244   0.24           0.24         H          FF                                                            7/10/95        0.24         0.24            0.24      0.24     1       W         FF
                                          6/14/95                        0          0.25           0.24         LF         FF                                                            8/23/95                                                                H       NOS
                                          7/10/95             0.24       0.24       27.25          0.24         I-E        FF                                                            11/16/95       0.09         0.09                                       w         FF
                                          8/23/95             0.24       0.24       0.24           0.24         H          PF                                                            12/5195        0.09         0.09                                       w         FF
                                          11/16/95            0.24       0.24           -          0.24         W          FF                                                            3/12/96        0.09         0.09                                       L         FF
                                          12/5/95             0.24       0.24       0.24           0.24         w          FF                                                            4/25/96                                                                LIE    NO B/N
                                          3112/96             0.24       0.24       0.24           24           L                                                                        GEOAAFAN@      0.20         0.20            0.38      0.24
                                                                         0.24       0.24           M
                                                              .24                                  0 4                     PF                                                                           0.928        0.928           1.633     0.00
                                          GEOMEAN=j           0.24       0.24       0.44           0.24                                                                                                                                             6
                                          SMEV                0.00       0.00       9.55           0.00
                                          COUNT               9          9                         9













                                                                          TABLE 8G:      Site CSL.Nutrient Database

                                                                          WELL CSL-l                                                                   WELL C13L-t @        um                           mglL um  91L           g/L      um        mg/L
                                                                          DATE           SAL                  - @120 DEPTH         TSS         %CM     I    DATE       F N-03                            NO" NH4  H4-t_         DIN      P04       P04          TIDE           rLTEJq
                                                                          1/3195         0,30          6.00   6.83                 85.70                    1/3/95          162.00                       2.27 4.80 0.07         2.34     OW        OjOl         H              m
                                                                          2/16/95        0.30          7.00   7.81    7,67         0.40                     2/16/95         87.78                        1.23 1.46 0.02         1.25     0.01      0.00         L              S
                                                                          2/23/95        0.20          6.00           7.3i-- -                              2/23195         750!6                        1.05 22.50 0.32        1.37     0.02      0.00         L              PF
                                                                          3130195        0.00                 6.93    7.00         4.00        25.00        3130195         66.86                        0.94 2.15 0.03         0,97     0.93      OW           H  -           PF
                                                                          4/25/95        0.00                 7.00                 17.20       12,36-       4/25195- --71.99--                           1.01 3.67 0.05         1.06-0.05          0.00         H              FF
                                                                          5/11/95        0.00                 7.06    3.94         682.33-     2@20         5/iligs         M95                          1.11 1.59 0.02         IA3      0.18      0.01  1      E  I           NOB
                                                                          615195         0.00                 7419    3197         22.00       i8ql8        6/5/95          58mS31                       OmS2 6.613 0.09        0.92 -0.16         0.01         E              NOB
                                                                          6/26/95                                                                           6126/95                                                                                             FIF            NO 1344
                                                                          7112/95                                     4.77                                  7/12/95                                                                                             H              NO 8,N
                                                                          811619 5                                    Sq05                                  8116/95                                                                                             w              NO B/N
                                                                          I W26/95       - O.OL               6.79    3.94         560.40      3.09         10126/95        95.89                        1.34 0.92 0.01         1.36     0.3491    0.03         @F             PF
                                                                          V22196         0.00                 7.14    1.93                                  2/22196         427.16                       5.98 7.79 0.11         &09      0+137     0101         LE             FF
                                                                          4/11/96        -6.00         7.00   7,13    2.30                                  4111/96         269.93                       3.76 20.8 O@29         4.07     0+017     0.00         FE             PF
                                                                          5/7/96         0.00          14.00  7.03    Z85                                   5/7196          89.1a                        1.25 13.47 0.19        1.44     0.006     0.00         L              PF
                                                                          613/96         0.00          1610   7104    3060                                  6/3/96          105.07                       lq47 5.46 0.061        1.55     0,225     _0@02        FF             FF
                                                                          MEAN.- -       0. 07         9.42   7.091   4.53                                  WIEANs                                       1.911    0.11          1.96               0.01
                                                                          MEDIAN         0.00          7.00   ?w04    3.96                                  MEMAN                                        1*24     2.07          1 W36              MI              I
                                                                          STCOEV         0.112         CIS!   O@27    i @92-                                STDOEY                                       I.S3     0.10          .56                0.02
                                                                            N            _f2           8      i i     f 2                                           N                                    12       12            12                 12

                                                                          WELL C$L-2                                                                   WU   L-      CaL- 9:@
                                                                          DATE                         ;.ITEW PH FQD D5iT-R        TSS      I %OM           DATE       I    N03                          N03-N NH4 NH4-N        DIN      P04       P04          TIDE           FLTER
                                                                          1/3/95         0.30          5+00 1 6.65                 179.90                   1/3195          922.08                       12.91 3.42 oqo5        12196    OwO2      0.00         H              m
                                                                          2116195        0.30-         5.10-6.60      4.04         1.10                     2/16/95         98.67                        1.38 2.67 0.04         1.42     omol      0.00         L              S
                                                                          2123195        0.20          5.20           3w89__                0-              2/23/95         145.90                       2.04 1.67 0.02         2W       0.02      0.00-        L              FF
                                                                          3130/95        0.00                 6.74    0483         1316.00     1 90         3130195         86.48                        1.21 1.75 0.02         1.24 1   0.10      0.01         H              FF
                                                                          4/25/95        0.00                 6.78                 1.20        33.33        4/257-95   5-6 43                            0.79 2.0310.03         0.82     oqo5      0.00         H  I           PF
                                                                          5/11/95- -0.00                      6.68    4.34         626.00      8.31         5/11/95         47.98                        0.67 5.12 0.07         0.74     0.00      0.00         E  I           FF
                                                                          6/5)95         0+00                 7.03    C35          353480      1:30         6/5195          43w33                        OW61 0.23 OqOO         0.61     0.06      0.00  1      E  I           PF
                                                                          6/26195        0@06                 7.16                 4wOO        MOD          6/26/95         38.39                        0.54 2.11 0.03         0.57     0.10      0.01         HF I           PF
                                                                          7112/05                                     5als                                  7112195                                                                                             H              NO SIN
                                                                          8/16195                                     5AS                   1               8116195                                                                                             W              NO BN
                                                                          10126/95       0.00                 6d86    4.34         98.66       3w7O         10/26t95        165@24                       2.31 1.61 0.02         2.34     0.24      0.02         w              FF:
                                                                          2122/96        O.OL                 7.13    2w35                                  2/22196         120.94                       1.69 3.78 0.05         1.75     0446      0.04                        FF
                                                                          4M/96          OdOO          7+00   6.93    2.78                                  4/11/96         IM47                         1.55 3*54 0.05         1 w60    0.01      0.00         FE             FF
                                                                          5/7196         0.00          12.10  7003    3.38                                  5/7/96          77.97                        1.09 3.17 0.04         1.14     0.07      0.01         L              PF
                                                                          6/3/96         -0.00         15+00  7.12    3.92                                  613196          59.51                        0.83 2.46 0.03         0.87     0.04      0@00         w              PF
                                                                                         0.06          8.2    .       3.73                                  MAN.                                         2.13     0.04          2.16               0.01
                                                                                         9.90          SAG    6.90    3.98                                  MEDIAN i                                     1        * **          1.24               0.00
                                                                                                                                                                                                         2:       :.2           3.2.
                                                                                                                                                                                                         1H
                                                                          STDOEY         . 2           4.28   0.20    1.27                                                                               3
                                                                                         13            61     12      12                                            N  1                                 113 11   131           13                 13

















                                                                          WELLCM4.
                                                                          bATE           iXZ@@,- -TSW PH         RM DWM            TSS         %Om                                                       M03-N    KH4-N         DIN      P04       P04          TIDE           FLTER
                                                                          1/3/95         0.30          5.50   6.75                 754.00                   1/3195          357*53                       SIOI 39.36 ow 55       6656     0402      0400         H              m
                                                                          2/16/95                                                                           2/16/95                                                                                             L  didW% sam
                                                                          2123/95        Om2O          SrSO           6.60                                  2/23/95         62.29                        Ow87 31.91 --0.45  IM       -0.02         0.00         L              PF
                                                                          3/30195        0.00                 6w63    6.67         13,80       14.49        3/30/95         156.34                       2.19 11.31 Owls        2.35     0.04      0.00         H              PF
                                                                          4/25/95        0.00                 6.71                 2.40        25.00        4/25/95         148.42                       2.08 41.41 OW58        2.66     0.06      0.00         H              FF
                                                                          slillos        0.00                 6.72    3wt6         715.50      2A7          sit figs        144.04                       2.02 44w27 0.62        2.64     0.03      0.00         E              FF
                                                                          6/5/96         0.00                 6.77    3wl4         594.40      1.72         615/95     1    126.74                       1.77 45w5310.64        2.41     0.06  1   0.01         E  I           PF
                                                                          6126195        amoo                 6.85                 1216.00     1.13         8/26105         134.15                       1.88 49.45 0.69        2.57     0.16  1   0.01         w              PF
                                                                          7112/95        -0.00         19.30  7.11    4A 1         390.20      3J4          7/12/95         148.08                       2.07 63.20 -0.88       2wgG     0.22      0.02         H              PF
                                                                          6/16195        10.00         21.30  6.89    4.22         85.40       1.64         SMG/95          14Sw2l                       2.03 66.32 0.93        2.96     0.02      0.00         I-F            FF
                                                                          10/26/95       OwOO                 6AS     2487         3400        26.66        10/26/95        235.00                       3.29 75.54 1.06        4.35     0.17      0.01         w              FF
                                                                          2122/96        0.00                 6.94    0.88                                  2/22196         469.00                       6.58 44.12 0.62        7.19     OA3       OwOl         F              PF
                                                                          4/11195        0400          6*60   6oll?   1 *62                                 4/11/96         566.03                       7.92 -47.77 OvS7       obso     0.05      owoo         LE             FF
                                                                          5/7196         0.00          MOO    6.90    2.33                                  517/96          389.03                       5.45 36.60 0.54        5.99     OW08      owol         LF             PF
                                                                          6/3/96         0000          l3w50  6*98    2.97                                  6/3/96          210.48                       2w95 26.82 0.40        3.35     0.02      0.00         w              PF
                                                                          MEAN.          0.04          12.11  6.83    3.51                                  MEAN.                                        3.291    0.63          3w92               0401
                                                                          IME"           0.00          12.801 8.83 1  3.14                                                                               2.13     0.62          2.96               0.00
                                                                          STDOEV         OAS           6.49   0*14    iAlt                                  STDOEV                                       2.10     0.23          2.12 1             0.01
                                                                                         i 4           7      13      It                                                                                 14       14            14                 14


                                                                                                       -w-wr  pH H2D DEF"          TSS                                                                            HH"                    P04       P04                         FLTEFI
                                                                          DATE                                                                                              N03                          NO" NH4                DIN                             TIDE
                                                                          It3/95         0.30          6.00   6.74                 116.30                   1/3/95          988.15                       13.83 18.33 0.26       14.09    0.60      0.05         H              m
                                                                          2/16/25                                                                           2/16/95                                                                                             L  didWt samg
                                                                          2/23195        0.20          6.00           7.00                                  2123/96         110.40                       11.55 24.69 0.34       1.89     0.19      0.01         L              PF
                                                                          -3/30/95       -0.00         1      6.76    7.03         8.20-       21.95        3/30/95         139.35                       1.931113.4611.59       3.54     3.68      0.28         H              FF
                                                                          4125/95        -0.00                6.93                 818.00      7,33         4125/95         23.48                        0.33 1261 m75 17*66    i7*99    OW        0.03         H              PF
                                                                          5/11/95        -0.00..              6*95    3.53         600.00-     6,33         5/11/95         189.39                       2.65 1270.28 17.78     20.44    0.09      0.01         E              PF
                                                                          615/9S         0000                 7617    3463         235m33      ?o65         6/s/95          106m7l                       1*49 125915 17o63      19.12    1.85      0.15         E  I           FF
                                                                          6/28/95        0.00                 8.97                 531.40      1,24         6128195         27.46                        0.38 904.65 12.67      13.05 _!.00        0.08         w              FF
                                                                          7112/95                      24.50          4.52                                  7112/95                                                                                             H              NO BIN
                                                                          8/16/95        1                            4&64                                  8/16/95                                                                                             W              NO 844
                                                                          10/26195       OM                   6.78    3.44         119.20      1.00         10126/95        1279.55                      17.91 109432 1.53      19.44    0.14      OwOl         FF             PF
                                                                          2/22/96        0.00                 6.06    1.65                                  2122/96    1    120.94                       1.69 3.78 0.05         1.75     3wOO      0.24         LE             FF
                                                                          4/11196        -OAC)         7.00   6.93    2.12                                  4111/96    1    504.69                       17.07 132.49 1.05      8.92     0.24      0.02         FE I           PF
                                                                          6/7/96                                      2.68                                  L7196           !51.!4                       2.13 139.84 1.96       4.08     1.26      0.10         L              FF
                                                                                                                                                                                                                                                   002
                                                                                                                                                                                                                                               OR04             LE
                                                                                                                                                                                                                                                   0.0          _
                                                                                                                                                                                                                                                   00,          L

                                                                                                                                                                                                                                                   0,
                                                                                                                                                                                                                                                   g


                                                                                                       6075                                                                                              -
                                                                                                                                                                                                         39 36

                                                                                                                                                                                                         3f
                                                                                                              ..3                                                                                        3
                                                                                                              67,                                                                                        R44
                                                                                                              U                                                                                          4'2
                                                                                                                                                                                                         453


























                                                                                                       0w50   6.72
                                                                          6/3/96         00            15 0   .99     3*32                                          3 1     27w 9                        1.78 81.7511.14        2.93     0.13      0 Of         w              PF
                                                                                                       w 0
                                                                          VZAN@          0.04          11.    6.89    3e9o                                                                                        6.21          10.50
                                                                          MEMAN          .00           9.75   4.93    3053                                                                               1        1.7!          10 *99
                                                                          STDOEW         0.10          7.24   0.14    LIPS                                  SMOEV      I                                          .             7.56
                                                                             N           12            6      11      11                                            N  1                                 112      12            12














                                                                                                                                                              WELL CGL4 DEEP?
                                                                                  DATE                SAL                       EPTH      TSS         %OM-             DATE        -NO3         M03-N     NH4               NH4-N     DIN          IP04       I PO-4
                                                                                  1/3/95 1            0.30 6.601    6.861    _            426.40                       1/3/95      142,99       2.00      15.43             0.08      2.08         0.18       201           H
                                                                                                                                                                                   1                                                                          0
                                                                                  2/16/95             -0.30 loboo            6.77         73.80                        2/16195     1209m94      16.94     7.69              0.11      17.05        10.07      bol           L        s
                                                                                  2/23/95             0.20 7.80              6.60     --                               2/23195     93.70        1@31      10.01             0.1       1.45         10.43      0@03          L        FF
                                                                                  3/30/95             -0.00         7m26     6.60         2130@00     1.60             3130195     86a29        141       2AS               0.03      1.24         1om        -"@ -01 -H             PF
                                                                                  4/25/95             0.00          7.37                  866.00      3.12             4/25/95     70A6         1.10      2.77              0.04      lbl4         ObI5       0m0I   __t!@PF
                                                                                  5/11195             0.00          7w35     2.92         839.00      1.91             5111195     79.32        iiii      3.91              0@05      1017         0.04       0.00          E        PF
                                                                                  6/5/95              0.00          7j29     2a77         1131400     0.16             6/5/95      78090        iAo       1.88              0.03      lm!3         0012       0.01          E        FF
                                                                                  6/26195             O@00          7030                  4424.00     0.41             6/26/95     45.70        0964      2.12              0.03      Od67         0.12       0.01          w        PF
                                                                                  7112/95             0.00 16.00    7038     3.82         1232.00     0.60             7112/95     76.56        1.07      1.96              OmO3      iwio         0006       OwOO          H        PF
                                                                                  8/f6/95             adoo 18.50    7. ta    4.04         1039w20     0.77    1        8116195     $7.04        1OwSO     3.73              0.05      0.85         0.00       10.00         w        FF
                                                                                  10126/95            odoo          7.06     2m9S         516FOO      4.26             10126/95    21.66        Oq3O      2.43              OqO3      Od34         0.20       0.02          w        PF
                                                                                  2122/96             0.00          ?m26                                               2/22196     9.23         0.13      28w53             0440      0.53         0.42       2.03          LE       PF
                                                                                  4/11196             0900 8.60     7.21     1.46                                      4/11198     77.58        1.00      4.84              obo7      1.15         0.03       000           I-E      PF
                                                                                  5/7/96              0.00 11.00    7.25     2.27                                      517/96      49.05        Ow69      5.93              0.08      0.77         0.18       0.01          L
                                                                                  6/3/96              0.00 12.40    7.36     2.62                                      6/3196      75.76        1.06      2.26              003       1.09         oqol       0.00          w        PF
                                                                                  MEAN.               0.05 11.39    7.24     3.89                                      MEANx                    2.04                        ms        2.12                    ovol
                                                                                  MEDIAN              0.00 10.214   7.26     2.96                                      MEDIAN                   tool)                       0.05      1.13                    0.01
                                                                                  STODEV              0.11 4.08     0.15 -1.90                                         STDOEV                   --4.IS                      C."       CIS                     0.01
                                                                                  N                   15a           13       11                                        N                        15                          Is        is                      is
                                                                                  WaLlm-a:            --f-                                                             .1 9.1      L
                                                                                  DATE                ITEMP I PH       I H20 DEPTH        TSS         %OM              DATE        NCO          N03-N     NH4               NH4-N     DIN          P04        P04           TIDE  FILTER
                                                                                  1/3195              0.20 6wOO 1   6.791                 83w5O                        1/3/95      254.30       3.56      158.77            2.22      5.78         0.19       0.02          H        m
                                                                                  2/16/95                              1                                               2/16/95                                                                                              L  didn't uxg!F
                                                                                  2123/95             0.20 GOOD              6bI0                                      2/23/95     92084        1.30      -Aw43             0.12      1 w42        012        0.01 1        L        FF
                                                                                  3130/95             0.00          8@91     6.30         30400       S167             3/30195     65.01        0.91      2m45              0.03  --0.94           0.10       0.01          H  I     PF
                                                                                  4/25195             0.00          6.78                  606.00 1 4.95                4/25195     73.51        1.03      6.82              0.10      IbI2         OaO5       0.00          H        FF
                                                                                  5/11/95             0.00          6.97     2.72         654mOO      3.36             5/11195     79.56        1.11      6.23              0.09      1.20         0.02       0.00          E        FF
                                                                                  --6/5/95            0.00          6.98     2.82         395.25      2.72             6/5195      70.79        6.99      9.16              0.13      1.12         omio       0.01          E        PF
                                                                                  6126195             Omoo          7.00              -T34 0-0        3.73             6/26/95     71.85        lbol      7.49              0.10   -1.11           0.21       0.02          HF       PF
                                                                                  7/12/95             0.00 15.00    7.10     3.67         3317.67     1.42             7/1219S     7i-74-       1.56      6.97              0.10      1.16         0.23       0.02          H        PF
                                                                                                                                                                                                                                                   0.00       0.00                   FF
                                                                                  8/16195             0.00 18+00    ?d07     3.97         1177.33     0.48             8/16/95     66.75        0.93      3 40              0 05      0.98                                  w
                                                                                  10126/95            0.00                   2.31                                      10/26/95 1                                             1                                             W     PF. wN
                                                                                  2122196             0.00          7.131    0.6-9                                     2/22/96     5.54         0.08      180.05            2.52      2.60         oqo9       omoi          LE       PF
                                                                                  401196              OqOO 7.50     6.95     1                                         4111/96     I9Sq66       2.75      L4 43             0.34      3.10         0.05       0.00          FE       PF
                                                                                                                                                                                                          4.r
                                                                                  5/7i96              OqOO lOa4O    6.81     2.02     1            1                   517196      81.71        IA4               3         0.07 1 @210.09                    0.01          L  I     PF
                                                                                  6/3/96              0.00 11.00    7.04     2.74                                      613196      137w24       Im92                        0.06      1.98         @01        omoo-         W        FF
                                                                                  MEAft               0.03 10.56                                                       WEAN.                    1.37                        0.46      1.03                    0@01
                                                                                                      0.00 10.40             Nl:                                       LIMAN                                                          1.20
                                                                                  MEDIAN                                     2                                                                  1.06                        0.10                              060i
                                                                                                      0.07 4.S9     0.12     1.79                                      STDOEV                   C90                         0.96      1.36                    0.01
                                                                                  STV                 14 -7         12       11                                        N                        13                          13        1 1













                                                                                                                                                                                   ETER
                                                                                  DATE                @x TEw -PH       H2D DEPTH          ras         %OM              DATE        N03          NO"       NH4               NH4-!L    DIN          P04        P04           TIDE  FILTER
                                                                                  8/16195             01            7.25                              33.33            8116/95     1956m75      27.39     4.10              0.06      27445        50,73      4bOl
                                                                                  11/14195                                                                             11/14/95- --                                                                                               BAITY
                                                                                  I i/W95             0                                                                11/16/95    1432.@7      20aO6     2.62              0*04      20wO9        W07        3*80
                                                                                  1/30/96                                                                              1130/96                                                                                                    15mis
                                                                                  218/96              0             6m93                                               2/8/96      806.7i--     11.29     1.15              0.02      l1w3l        67*32      5.32
                                                                                  2122/96             0             6.87                                               2122/96     3.89_        OwO5      680.73            9.53      9.58         60.83      4m80
                                                                                  2/29/96             0      1      6.91                                               2129/96     93.39        11.31     6.62              0.09-     la40         72w92      5.76
                                                                                  3/12/96                                                                              3/12/96                                    1                                           3                   400.1s
                                                                                  3113/96             0             6.91                                               3113/96     106rS9       1.49      2.10    1         0.03      1.52         45.92      13.63
                                                                                  4111/96             0             7.05                                               4111196     115.91,      1.62      8.07              0.11      1.74         47.82      13.78
                                                                                  5/7196              0             7.05                                               5/7/96      94.68        1. 3      3.46              0.05      1.37         49.25      3,89                200mis
                                                                                  5/9/96              0             6.74                                               5/9/96      29.37        0.41      2.86              0.04      0.45         42.3       13.34               200mis
                                                                                  6/3/96                                                                               6/3/96      15.58        0.22      148*19            2mO7      249          44m8i      3w54                200mls
                                                                                  6/s/96              0             6.66                                               6/5/96      28.41        0.40      1772.46           24.81     25.21        108.18     8.54
                                                                                  MEAN,               0.00          6.95                                               MEAN.                    5.96                        3.33      9.31                    4.682
                                                                                  MEDIAN              0                                                                                         1.33                        0.06      2 29                    3,890
                                                                                                      NI     1      :11., 1                                                                     9.44                        7.6
                                                                                  STDOEW              _21                                                                                                                   i-                                1:528
                                                                        1         N                   1 101  f      9  1                                               N                        I I                                                           I I
                                                                                                                                                          :13                                             4       1
                                                                                                                                                                                                          R212
                                                                                                                                                                                                          I       15
                                                                                                                                                                                                          6.0     73
                                                                                                                                                              I
                                                                                                                                                                       MEDIAN
                                                                                                                                                                       DDEV
                                                                                                                                                                       STM









                                                 TABLE SG: Site CSL.Mlcroblolll Ical Database

                                                                                                                                                                                                                                                                                                                      CP           TIDE    WER
                                                                                                                          41                                                                                                                        DATE                  Fr            EC    Enteroccod
                                                       DATE                  Fr,            ED  Enteroocom I              CP I        TIDE      FILTER                                                                                                                    0             0              0              490-         N          m
                                                       113195                0              0              0   1          15          H                m                                                                                                                                                                           L    dldnl samp
                                                       2116 95               0              0              0              0           L                S                                                                                            2/23/96               1             1              0.49           0.24         L          FF
                                                       2123/95               0.24           0.2A           1              0.24        L                FF                                                                                           3/ 30M                0.24          0.24           0.5            0.5          H          FF
                                                       3/30195               Od24           0@24           0.24           0.24        m                FF                                                                                           4/26/96                                            i-
                                                                                                                                                                                                                                                                          0.24          0.24           .24            22           H          FF
                                                       4/26195               0.24           0.24           Ow24           1           H                PF                                                                                           5/11196               0.25          0.25           0.24_          0.24         E          FIF
                                                       6/11/95                                                                        E         NOB                                                                                                 6/5/-95               0.24          0.24           0.24           2            E          FF
                                                       6/5195                                                                         E         NOB                                                                                                 6/26196               53.25         Alows          0.24           2.25         w          FF
                                                       6126/95                                                                        HF        NO B/N                                                                                              7112/95                                                -                       H       NO BIN
                                                       7112195                                                                        H         NO BIN                                                                                              61,16196                                               -                       w       NO WN
                                                       BMW95                                                                          w         NO B/N                                                                                              10126/95              Om24          Or24           0.24           0.24         w          FF
                                                       !0/26/95              0.09           0.09           22.76          0.09        FIF              IF                                                                                      --?/22/96                  10            6              49.5 --T -75 -F                        FF
                                                       2/22/96               0.24           0.24           0.24           0.24        F                FF                                                                                           4/11/96    1          0.25          0.25           0.24           Om25         w          FF
                                                       4111198               0.24           0-24           2              0.75        w                FF                                                                                           5/7/96                0.25          0.25           0.5            0.24         L  I       FF
                                                       517196                0.24           0.24           0.24           0.24        L                PF                                                                                           G(Vos                 0.24          0.24           0.2S           0.5                     IV
                                                       613/96                Om49           OW49           0.49           0.5         w                FF                                                                                           GEOMEAN-              0.63          0.60           0.48           0.85
                                                       GEOIIAEAN.            0.23           0.23           0.72           -33                                                                                                                       SMEV                  15.93         14.46          14.53          6.59
                                                                                                                          2                                                                                                                                                                            0              11.00
                                                                             11             0.11           7.84           .9                                                                                                                        COUNT                 11.00         1111.00        1111.0
                                                                             No             8.00 -8.00-                   8.00                                                                                                                0450MOO-7
                                                          . ....... ..                                                                                                                                                                              nATE                  FC            ED    Entenwood               CP           TIDE    FILTER
                                                       DATE                  FC             ED  Entemccod                 (P          TIDE      FILTER                                                                                              113195                0             0              0              0            N--        m
                                                       113195                0              0              0              0           H                m                                                                                            211010S               0             0              0              0            L
                                                       2116195               0              0              76             12          L                S                                                                                            2/23/95               0@24          0.24           0.49           0.24         L          FF
                                                       2/23/95               0.24           0.24           Od49           O@24        L                FF                                                                                           3/30/95               0.24          0.241          0.24           0.24         H          FF
                                                       3130195               0.24           Ob24           0424           0.24        H                PF                                                                                           4/25/95               0.24-         0.24           0.24           0.24         H          FF
                                                       4/25M                 0*24           Om24           Oa24           0.24        H                FF                                                                                           5/11/95               0.24          -0.24          0.24           0.24         E          FF
                                                       5111/95               Ow24           0624           0.24           0.24        E                FF                                                                                           6/6/95                0.24          0.24           0.25           0.24         E          FF
                                                       6/5/95                Om24           Ow24           0124           0.24        E                PF                                                                                           6/26/95               1.25          1.25           0.24           0.24         W          FF
                                                       6/26/95               6.5            6.25           0.24           0.24        HF               PF                                                                                           7112/95               0.24          0*24           4              0.24         H          FF
                                                       7/12195                                                                        H         NO am                                                                                               8116195               4.75          4.715          0.24           0.25         w          FF       I
                                                       8/iG/95                                                                        w         NO EM                                                                                               1 /26/95              0.24          0.24           0.24           0.24         w          FF
                                                       10/26M                O@24           0.24           7.5            od24        w                PF                                                                                           2122/96               0.25          0.24           6.75           3.5          F          FF
                                                       2/22/96               0.24           0.24           1              1.25        F                FF                                                                                           4/11/96               0.24          0.24           0.24           0.5          w          FF
                                                       4/11/96               0.24           0.24           0.24-          0.24        K                FF                                                                                           517/96                0.24          0.24           0.24           0.24         L          FF
                                                       5T7196                -0424          0.24           0.24--         O@24        L                FF                                                                                           613106                0.24          0.24           0.24           0.24         w          FF
                                                       6/3/96                0.24           0.24           0.24           0.24        w                PF                                                                                           GEOMEAN.              0.34          0.34           0.41           0.31
                                                       GEOUEAN.              0.32           0.32           0.40-          0.28                                                                                                                      STDEV                 1.26          1.25           2.00           0.90
                                                       STDEV                 1.89           1.81           2.17           0.30                                                                                                                      COUNT      1          13.00         13.00          13.00          13.00
                                                       COUNT                 11.00          11.00          11.00          11.00

                                                                                                                                                                                                                                                    DATE                  FC            ED    Enteroccod              CP           71DE    FL70
                                                       DATE                  Fr             Er  I Entemoomd               CP          TIDE      FILTER                                                                                              113195-               0             0              0              170-         H          m
                                                       113195                0              0              0              30          H                m                                                                                            2110/95                                                                        L
                                                       2/16/95                                                                        L     didn't samp                                                                                             2/23/95               2             2              0.49           0.24         L          FF
                                                       2/23/95               0.24           -24            0*49           0.24        L                FF                                                                                           3/30/95    -          0.24          0.24           0.24           0.24         K          FF
                                                       3130195               0.24           0.24           0.24           0.24        H                FF                                                                                           4125/95               0.24          0.24           0.24           0.24         H          FF
                                                       4/25/95               0.24           Ow24           0.24           0.25        H                FF                                                                                           5/11/95               0.24          0.24           0.24           0.24         E          FF
                                                       5/1 i/95              0.24           0.24           0.24           0.24        E                FIF                                                                                          6/5/95                0.24          0.24           0.24           0.24         E
                                                       6/5/95                0.24           0.24           0.24           0.24        E                FF                                                                                           6/26/95    -          2.25          2              0.24           0.24         w          FF
                                                       6/26/95               5.75           5m75           Ow24           0.24        w                FF                                                                                           7/12/95               0.5           0.5            0.24           0.24         H          FF
                                                       TM 2195               Oa24           0124           Oa24           0.24        H                PF                                                                                           0116195    1          0.24          0.24           0.24           0.24         w          FF
                                                       8/16/96               2                             2.75           0.24        w                PF                                                                                           10/26/95              0.24          0.24           0.24           0.24         w       PF. no N
                                                       10126195              0.24           0.24           0.24           0.24        w                FF                                                                                           2/22/96               O@24          0.24           0.24           0.24         F          FF
                                                       272-2/96              2.75           2.75           6.75           0424                         FF                                                                                           4/11/96               0.24          0.24           0.24           0.24         w          IF
                                                       4/11/96               Ow24           0.24           Ow24           -0.24       I-E              PF                                                                                           517/96                0.24          0.24           0.24           0.24         L          PF
                                                       S17/96                0.24           0424           0424           0.24        L                Fr                                                                                           6131SIS               0.24          0.24           0.24           0.24         w          FF
                                                                                                                          -                                                                                                                         GEOMEAAW              0030          Oa35           0.25           0.24
                                                       6/3f96                0.24           od24           O@24           0.24        w                PF
                                                       GEOMEAN.              0.44           0 44           0.40           0.24                                                                                                                      SMEV                  0.70          0.06           0.07           0.00
                                                                                                                                                                                                                                                    COUNT                 13            13             13             13  1
                                                       STOEV                 1.64           1.64           1.87           0.00
                                                       COUNT                                0-0 13-00          13-00
                                                                                                                          0
                                                                                                                          0
                                                                                                                          0
                                                                                                                          0
                                                                                                                          0

                                                                             0                                                                                                                                                                                                V2                                                        didn't som
                                                                             24                                           024                                                                                                                                                           0. 24
                                                                             024                                          24                                                                                                                                                            24
                                                                             -24                                                                                                                                                                                                                                                              IF
                                                                             024
                                                                             024
                                                                  K5                                                      02                                                                                                                                                            24
                                                                                                                          0
                                                                                                                          04                                                                                                                                                            024
                                                                                                                          024                                                                                                                                                           2
                                                                             7                                 OF24                                                                                                                                                                     0.
                                                                                                                          02                                                                                                                                                            24
                                                                                                                          024
                                                                                                                          04











                                                                        TABLE SH: Site WRH-Nutrlent Da baso

                                                                        WELL- wRH-i                                                                                     I
                                                                            DATE          I SAL [-TE-W           PH   I H20 DEPTH I   I         %__0_M       0          1 N03       I        N03-H NH4                 NH4-N   DIN   P04-         Po4    mDE          ALTER
                                                                            113195                               7.07                 159A0                                150.68   1        2.11  1250.83             17.51   19.62 1 54         0      H   W FC inte
                                                                            2116/95                                       641                                                                                                                            L            NO BIN
                                                                            312195                                        6.60                               3/2195                                                                                      L            NO 131@_
                                                                            3130/95                                       6.99                               3130/95                                                                                     H            NO afN
                                                                            4/6/95                                        7.17                               416/95                                                                                      L            NO S(N
                                                                            4/25/95                                                                          4125/95                                                                                     H            NO B/N
                                                                            6/11195                                       7.75                               5111195                                                                                     E            NO R(N
                                                                            6126195                              6.72 -               _6@22     17.86        6126/95                                                                                     FF           NO B/N
                                                                            7/12195                                       8.8                   1            7/1 2tQ5                                                                                    H            NO BIN
                                                                            8/16/95                                       8.95                               8/16195                                                                                     w            NO B(N_
                                                                            11/18/95      0.00                   7.03     6.21                               111118/95     1010.991          14.15 263.43              3.69    17.84 0.25         0.02   TE- _FF
                                                                            2/1/96                     13.00              6.02                               2/1196                                                                                                   NO B(N
                                                                            218/96        0.00         1                  7.05                               218/96        36.44             0.64  129.64              1.81    2.35  0.12         0.01   LE           FF
                                                                            3/28196       0.00         8.50      7.41     5.95                               3/28/96       22.53             0.32  162.25,             2.27    2.59  0.40         0.03   LE           FF
                                                                            519196        0.00         11.50     7.24     6.56                               5/9/96        46.12             0.65  28.89               0.40    1.05  2.30         0.18   LE           FFF__
                                                                            MEAN.         0.001        7.67      7.09     7.09                               MEAN.                           3.55                      3.14    6.69               0.073
                                                                            MEDtAN        0.001        8.50      7.07     a.95                               MEDIAN                          0.65                      2.27    2.S9               0.032
                                                                            STDDEV        0.001        4.311     0.26     0.99                               STDDEV                          5.97                      7.02    9.21               0.076
                                                                              N           4 1          31        5        12                                   N                             5                         5       3                  5


                                                                            DATE                       @j 1-80P  PH   H20 DEPTH       TSS       %OM          DATE          N03               N03-N N144                NH4-N   DIN   P04          P04    -nDE         ALTER
                                                                            1/3195        0.60         5.00      6.55 _               129.90                 1/3195        458.28-           6.42  48.87               0.68    7.10  0.14         07-1   H            m
                                                                            2/16/95                                                                          2/16/95                                                                                     L   didn't samp
                                                                            3/2/95        0.20         4@00               6.10                               3/2/95                                                                                      L            NO BIN
                                                                            3/30/96                                       7.19                               3130/95                                                                                     H            NO BIN
                                                                            4/6195        0.00         4.00      6.78     7.43        394.00    5.84         -4/6195       733.39            10.27 164.21              2.30    12.57 0.05         0.00   L            PF
                                                                            4125/95                                                                          4/25/95                                                                                     H            NO BIN
                                                                            5/11195                                       .07                                5/11/95                                                                                     E            NO S(N
                                                                            6t26/95       0.00                                                               6126/95       51.79             0.73  15.42               -0.22   O@94  0.76         0.06   w            NOS
                                                                            7/12195                                       9.02                               7/12195                                                                                     H            NO El/N
                                                                            8/16/95                                       9.10                               Stl6/95                                                                                     FF           NO B(N
                                                                            11/18195      0.00                   6.72     6.25                               11/18/95      362.14            5.07  4CS0                0.63    5.70  0.06         0.00   HE           PF
                                                                            2/1/96                     4.00               6.52                               2/l/96                                                    1                                 HE           NO BIN
                                                                            218/96        0.00         6.50      6.57     7.14                               2/8/96        5.55              0.08  62.93               0488    0.96  0.20         0.02   LE           PF
                                                                            3/28/96       0.00         5.20      6.59     6.63                               3128196       0.79-             0.01  50.99               0.71    0.72  0.08         0.01   LE           PF
                                                                            519/96        .00          11.50     6.72     7.07                               519/96        3.16              0.04  50.25               0.      0. 5  0.93         0.07   LE           FF
                                                                            MEAN.         0.09         5.74      6.60     7.32                               MEAN.                           3.23          -           0.17    4.11               .0
                                                                            ME66_U@       0.00         5.00      6.66     7 14                               MEOLAN                          0.73                      0.70    0.96               0.011
                                                                            iffw-w        0.8181       2.770     0.10     :02                                                                                          0.66    4.53               10.0291
                                                                                                                                                                                             4.08
                                                                              N                                                                                                                                        7                          7













                                                                        EW
                                                                            DATE                       'F:@_NV   PH   H20 DEPTH       7SS       -%-o-m-l     DATE       F_N_o3               N03-N NH4                 NH4-N   DIN   P04          pO4    TiDE         ALTER
                                                                            1/3195        0.90         6.50      6.64                 120.60                 1/3/95        1370.67           19.19 37.30               0.52    19.71 0.06         0.00   H            m
                                                                            2/16/95       0.30         10.00     5.91     6.65        19.60     -            -2/16195      20.21             0.28  126.40              1.77    2@05  0.02         0.00   L            S
                                                                            3/2/05        0.70         8.00      6.22     5.52        50.70                  3/2/95        1263.62           17@69 34.13               0.48    18.17 0.04         0.00   L            FF
                                                                            3/30/95       0.00                   6.66     S.67        298.00    4.70         3/30/95       1284.02           17.98 34.43               0.46    18.46 -0.07        -0.01  H            PF
                                                                            4/6/96        0.00         6.90      6.14     5.87        156.00    1.28         4/6/95        1488.31           20.64 74.40               1.04    21.88 0.07         0.01   L            FF
                                                                            4125/95       0.00                   6.18                 115.80    2.94         4/25/95       1245.49           17.45 81.56               1.14    18.59 0.04         0.00   H            PF
                                                                            5111/95       0.00                   6.94     6.39        55.00     18.79        5111/95       1325.28           18.55 1129.83             15.82   34,37 4.27         0.34   E            FF
                                                                            6/26/9S       0-00         13.00     6.48                 109.00    3.06         6/26/95       1224.44           17.14 43.87               0.611   17.76 0.09         0.01   w            FF
                                                                            7/12/95       0.00,        15.40     6.33     7.20        491.33    0.81         7/12/95       1327.51           18.59 21.59               0.30    18.89 0.09         0.01   H            PF
                                                                            8/16/95       0.00 1       18.00     6.38     7.32        454.33    1.98         8/16/95       1227.64           17.19 33.72               0.47    17.66 0.64         0.05   FF           PF
                                                                            11/14195      0.00 1                 6.46     5.49                               11/14/95      1126.65           15.80 56.03               0.78    16.59 0.13         0.01   H            PF
                                                                            11/18195      0.001                  6.34     5.09                               11/10/95      1154.01           16.16 27.31               0.38    16.54 0.05         0.00   HE           FF
                                                                            2/1/116       0.001        4.20      6.61     5.22                               2/1196        1147.42           16.06 29.53               0.41    16.40 0.00         0.00   HE-          PF
                                                                            218/06        0.00         16.10     6.76     5.60                               2/8/96        1157.19           16.20 19.60               0.26    16.48 0.14         0.01   LE           FF
                                                                            3/28196       0.001        7.90      6.74     5.27                               3/28/96       1092.52.          15.30 32.36               0.45    15.75 0.38         0.03   LE           PF
                                                                            5/9/96        0.00         10.40     6.96     5.57                               519/96        1245.89           17.44 32.36               0.45    17.90 0.23         0.02   LE           FF
                                                                            MEAN.         0.12         9.67      0.42     3.83        187.04    4.79         MEAN.                           16.37                     1.59    1?.95              .0.031
                                                                            MEOM          0.00         9.00      6.47     5.58        118.20    2.94         MEDLAN                          17.31                     0.46    17.83              0.006
                                                                            STDM          0.28         4.25      0.43     0.71        100.97    6.30         1STDOEV                         4.52                      3.81    6.09               0.083
                                                                              N           IS           I I       is       13          10           7           N                             is                        16      Is                 16

                                                                                          S
                                                                            DATE          SAL          YEW       PH   H20 DEPTH       m         %OM                        NO3               NO"   NH4                 NH4.N   tM    P04          P04    TIDE         ALTER
                                                                            1/3/95        0.90,        6.20      6.68                 111.50                 1/3/95        199.23            2.79  _168.75             2.36    5.15  0.22         0.02   H            S
                                                                            2/16195                    1                                                     2/16/95                                                                                     L   ddn't samp
                                                                            3/2195        0.601        5.00      6.18     5.61        6.70                   3/2/96        1.14              0.02  219.30,             3.07    3.09  12.05,       0.95-  L            PF
                                                                            3/30195       0.001                  6.48     5.99        65.80     15.20--      3/30195       0.78              0.01  224.42              3.14    3.15  21.441       1.69   H            FF
                                                                            4/6/95        0.001        4.90      6.57     6.20        58.67     9.09         4/6/95        5.38              0.08  1069.12             14.97   15.04 7.07         0.56   L            FF
                                                                            4/25/95       0.001                  6.69                 1899.00   2.26         4/25195       1.96              0.03  1068.35             14.96   14.98 14.46        1.14   H_           FF
                                                                            5/9195        0.001                  6.92                 1014.00   4.39         519/95        8.37              0.12  1245.79             17.44   17.56 2.60         0.21   H            NOB
                                                                            5/11/95       0.00         11        6.26     6.75        64.33     4.66         5111/95       2.29              0.03  51.32               0.72    0.7S  0.16         0.01   E            FF
                                                                            6/26/95       0.001        15.001    6.92                 216.50    6.78         6/26195       67.20             0.44  1067.16             14.94   15.88 0.15         0.01   w            PF
                                                                            7112/25       0.001        18.301    7.02     8.61        25.50     26.47        7/12195       760.06            10.64 289.69              4.06    14.70 1.07         0.08   H            FF
                                                                            6/16/95       0.001        22.30 1   7.00     8.78        33.20     24.10        6116195       61.80             0.67  244.26              3.42    4.28  0.06         0.01   w            FF
                                                                            11114195      0.001                  6.62     5.80                               11114195      652.70            9.14  194.42              2.72    11.86 0-03         0.00   H            FF
                                                                            111116/95     0.001                  6.51     5.46                               -11/18195     135.51            1.90  331.29              4.64    6.54  0.22         0.02   HE           PF
                                                                            211/96        0.001        2.00      6.62     5.54                               211/96        332.99            4.66  139.32              1.94    6.60  1.51         0.12   HE           Fr
                                                                                                                                                                                                                                     r
                                                                                                                                                                                                                                     O't
                                                                                                                                                                                                                                     A 4


                                                                                                                                                                                                                                     0 S


































































                                                                            210/96        0.00         5.50      192      5.92                               2/8196        4.18              0.06  242.23              3.39    3.45  6-94         0.55   LE           FF
                                                                            3/20/96       0.00         6.00      6.60  -5.60                                 3/20/96       48.91             0.66  385.82              5.40    6.09  0.32-0.02           LE           Fr
                                                                            5/9196        0.00         10.50     6.70     5.89                               519/96_       36.40             0.51  279.03              3.91    4.42  1.231 0.10          L   I        PF ___l
                                                                            MEAN.         0.09         9.57      0.70     6.36        439,32 11.87           MEAN.                           2.03                      0.32    4.35               0.343
                                                                            MEMA14        0.00         6.10      i.69     S.91        6517      6.94         1MEMAN                          0.00                      3.80    a 31  1            10.091
                                                                            STDDEV        0.25         8.74      0.24
                                                                                                                          1.14        775.37 1 0.19          1STDDEV                         3.33                      5.65 -kS2     1            10.50sl
                                                                                          Is                              12          10        1  1         1 N                             is    I       I           is I __I$     I            I











                                                                   WELL: WR"                                                                             WEW WF*4-3
                                                                            DATE           SAL TEW             PH   H20 DEPTH                      TM -%-5wl  DATE           INO3    i      N03-4                               DIN     P04        P04         MOE
                                                                            113195                                                                 160,801    113/95         1115           O@02      1377.67       19.29       19@30   1.17       0.09        H    M, FC mo:
                                                                            2116/95                                                                -:::_ @21@ 6 195                                                                                    '       L    didnl ".p
                                                                            3/2/95         0 50     6woo       SM34          7.24                  5.50  1    3/2/95         0.00           0.00      354.34        C96         4.96    1 @25      0.10        L       FF
                                                                            3130195        0.00                6.75          7.26                  5.80 44.83 3/30/95        0.03           0.00      349.54        C89         4.89    1.79       0.14        H       NOB
                                                                            -416195        0.00     5.00       6.89          7.68                  133.67 7.46- 4/6/96       3.47-- 0.05              1574.46       22.04       22.09   0.13       0.01        L       FF
                                                                            4125/95        0.00                6.93                                9.80 34.70 4125195        2.09           0.03      1346.23       18.85       18.88   0.47       0.04        H       Fr
                                                                            6/1 1 t95      0.00                6M99          8.22                  1232.50 1.14 5/11/95      0.85           0.01      1344.68       18.83 1     18.84   0,02       0.00        E       NOS
                                                                            6/26/95                 19.20                                          1188.00 2.19 6/26195                                                                                        Hl@  NO SIN
                                                                            7/12/95                                          9.00                             7/12/95                                                                                          H    NO B/N
                                                                            8/16/gs                                          9.14                             8116/95                                                                                          FIF  NO BIN
                                                                            11114/95       O@00                7.36          6.95                             11/14/95       1300.07        18.20     328.39        4.60        22.80   0.05       0.00        H       NOS
                                                                            11/18/95       0.00                6.68          6.42                             11/18/95       1271.41        17.80     175.62        2.46        20.26   0.00       0.01        FE      FF
                                                                            2/1/96                  2.50                     6. 12                            2/11/96-                                                                                         HE   NO SIN
                                                                            2/8/96         0.00                     -T2-7                                     2/8/96         843.10         11.80     110.45        1.55        13.35   0.31       0.02        LE      FF
                                                                            3128t96        0.00     7.50       7.05          6.23                  --3/28/96                 146.69         2.06      110.45        1.55        3,60    0.05       0.00        LE      PF
                                                                            519/96         0.00     12@00      6.78          7.25                             5tg/96         15.17          0.21      232.97        3.26        3.47    0.34       10.03       LE      FIF
                                                                            MEAN.          0.05     6.70       6.811         -7.32                 390.07 18.07 MEAN.                       4.56                    9.30        13.05              10.041
                                                                            MEDtAN         0.00     6.75       6.91          7.26                  133.67 7.4111 MEDIAN                     0.05                    4.89        18.84              10.025
                                                                            STDDEV         0.18     8.03       0.27          1.0s                  563.43 20.27 STDDEV                      7.50                    8.41        8.01               10.048
                                                                            N              10       0          10            12                    73          IN                           I

                                                                   WELL; WRH4.1,@                                                                        WERL,
                                                                            DATE           f                   pH   H20 DEPTH                      TM 16 -0M  DATE           r N03          N03-N     NH4           NH4-N       DIN     P04        Fbi         nDE  RLTER
                                                                            1/3/95         10.301   6.00       6.58                                223.80     1/3/95         100.79         1.41      3.61          0.05        1.46    0.12       0.01        H       m
                                                                            2/16/95        1                                                                  2/16/95                                                                                          L    didn't samp
                                                                            312195         0.40     5.00       5.94          5.25                  22.20--3/2/95-            785.89         11.00     2.11          0.03        11.03   0.11       0.01        L       PF
                                                                            3130/95        0.00                6.46          5.36                  519.0 .49  3/30/95        738.43-        10.34     1.35          0.02        10.36   0.11       0.01        H       FF
                                                                            4/6/95         0.00     4.90       6.51          5.58                  1.00 4.89  4/6/95         302-66         4.24      7.01          0.10        4.34    0.06       0.00        L       FF
                                                                            4/25/95        0.00                6.55                                1512.00 3.31 4/2S/96      229.42         3.21      11.73         0.16        3.38    0.07       .0.01       H       FF
                                                                            5/11/95        0.00                6.99          5.94                  863.50 2.03 5/11/95       305.90         4.28      7.30          0.10        4.38    0.02       0.00        E       PF
                                                                            6/26195        0.00     14.00      6.51                                           6/26/gS        132.80         t,86  -6.22             0.09        1.95    0.08       0.01        w       FF
                                                                            7/12/95        0.00     17.20      8.63          7.61                  711.00 2.11 7112195       112.72         1.68      7.71          0.11        1.69    0.14       0.01        H       FF
                                                                            B/iS/95                 21-,50     6.46          7.84                  38112.33 OJ4 8/16195      203.05         2.84      2.16          0.03        2.87    0.04       -0.00       -W      FF
                                                                            11/18/95       0.00                6.41          5.05                             11/18/95       456.95         6.40      3.15          0.04        6.44    0.06       0.00        HE      FF
                                                                            2/1/96         10.001   4LqO       6+85          5.14                             2/1/96         419.21         5.87      9.97          0.14        6.01    0.06       0.00        HE      PF
                                                                            2/8/96         0.00     S.-40      6.91          S.35                             2/8/96         540.75         7.57      6.45          0.09        7.66    0.12       0+01        LE      PF
                                                                            3/28t96        0.00     7.20       6.61          5.11                             3/28/96        154.09         2.16      9.30          0.13        2.29    0.06       0.00        LE      PF
                                                                            F/9/96         0.00     10@00      6.53          5.32                             5/g/96         177.65         2.49      6.65          0.09        2.58    0.37       0.03        L       FF
                                                                            MEAN.          0.05     9.52       6.51          5.7s                  1131.911 3.10 MEAN.                      4.66                    0.08        4.73               0.00
                                                                            MED"           0.00     6.60       4.54          5.36                  797.25 2.71 MEDIAN                       1.72                    0.02        2.66               0.006
                                                                   --STDDEV                0.13     6.03       0.25          1.00                  1199.87 1.83                             3.16                    0.04        3.14               10.007
                                                                            N              13       10         14            11                    a6














                                                                            DATE           SAL      -TEW       pH   H20 DEPTH                      m%OMl      DATE           N03            N03-N     NH4           NH4-N       DIN     P04 P04                TIDE RLTER
                                                                            3/281961       ol       - a        6.84 .        3.54                        1    3/28/96        88.38          1.24         5.321      0.07448     1.31    0.06       0.00
                                                                            5/91961        01 _L-9             6w59          3w49_                             5/9/96        145.71         2.04        9.481       OJ3272      2.17    0.08       0.01
                                                                            MEAN.          10.001   $.as-      6.72          3.32                             MEAN.                         1.04                    0.10        1.74               0.005
                                                                            MEDIAN         10.001   $.as-      6.72          3.52                             MEDIAN                        1.64                    0.10        1.74               0.005
                                                                            STDDEV         10.001   1.34       0.16          0.04                             STDDEV                        0.57                    n 04        0.61               0.001
                                                                            N              2        2          2    1        2                                 IN                           2                       2           2                  2


                                                                            DATE           SAL      TEMP                                           IMI%OM     DATE           I N03          N03-N     NH4           NH4-N       DIN     P04 P04                TIDE ALTER
                                                                            3/28/96        0        7.2        6.77          3.64                             3/28/96        1163.29        16.29     60.51         0.84714     17.13   0.08       0.01
                                                                            5/9/96         0        9.9        6.61          4                                6/9196         1279.06        17.91     20.69         0.28966     18.20   0.24       0.02
                                                                            MEAN.          0.00     9.53       0.60          3.92                             MEAN.                         17.10                   0.57        17.60              0.012
                                                                            MEDIAN         0.00     4.55       0.69          2.92                             MEDIAN         _              17.10                   0.57        17.60              0.012
                                                                            STDDEV 1 0.00           1.01       0.11          0.11                             STDDEV                        1.15                    0.39        0.75               0.009
                                                                            N              2        2          2             2                                 N                            2                       2           2                  2

                                                                   00                      am__
                                                                            6X             SAL      TEMP       pH   H2D DEPTH                      M%OM       DATE           I N03          NOS-N     NH4           NH4-N       DIN     P04 P04                TIDE RLTER
                                                                            3/28196        -0       7          6.62          3.64                             3/28/96        892.58         12.50     352           4.928       17.42   0.06 0.01
                                                                                           0        9          6.6           3.41                             5/9/96         981.74         13.74     217.07        3.03698     16.76   0.26       0.02
                                                                            MEAN.          0.00     8.00       6.61          3.511                            MEAN.                         13.12                   3.98        17.10              0.0131           1
                                                                            MEDIAN         0.00     $.as       6.61          3.5S                             MEDIAN                        13.12                   3.98        17.10              0.013
                                                                            STDDEV         0.00     1.41       0.01          0.16                             STDDEV                        0.89                    1.34        0.45               0.011
                                                                            N              2        2          2             2                                 N                            2                       2           2                  2


                                                                                           @rw
                                                                            DATE           SAL      TEMP       PH   H20 DEPTH                      im %OM     DATE           N03            N03-N     NH4           NH4-N       DIN     P04 P04                nDE  FLTER
                                                                            312ma          0        7,5        6.7           3.11                             3/28/96-       4.32           0.06      36.06 0.50484             0.57    0.08       0.01
                                                                            5/9/96         0        9.8        6.87          2@95                             5/9/96         25.85          0.36      25.28         0q35392     0.72    0.13       0.01
                                                                            MEAN.          0.00     4.63       6.70          3.03                             MEAN.                         0.21                    0.43        0.64               0.004
                                                                            MEDIAN         0,00     a as       $70           3.03                             MEDIAN                        0.21                    0.43        0.64               0.008
                                                                                                    %          0112          0.11                             STDDEV                        0. 21                   0.11        0.11               0.003
                                                                            N              2        2          2             2                                 N                            2                       2           2                  2
                                                                            N
                                                                   'DAN
                                                                            2
                                                                            L
                                                                            EA





                                                                                                                                                                             N03








                                                                                       WE                  R
                        DATE               pH       DATE       N03        N03-N     NH4        NH           DIN       P04       P04      TIDE      RLTER
                        8/16/95   0.00    7.19    8/16/95     1622.11     22.71     10.67      0.15        22.86      2.73      0.22
                        9/18/95   0.00    6.41    9/18/95     1653.33     23.15     16.84      0.24        23.38      6.77      0.53
                        10/24/95  0.00            10/24/951   1478.41     20.70     0.99       0.01        20.71      4.07      0.32
                        11/1/95   0.00            11/1/95     1356.45     18.99     61.26      0.86        19.85      0.96      0.08
                        11/14/95  0.00    6.39    11/14/95    1277.27     17.88     14.58      0.20        18.09      0.79      0.06
                        11/16/95  0.00            11/16/95    1354.68     18.97     17.47      0.24        19.21      1.22      0.10
                        11/18/95  0.00            11/18/95    1374.43     19.24     31.69      0.44        19.69      0.62      0.05
                          2/8/96  0.00    6.79      2/8/96    887.00      12.42     454.87     6.37        18.79      0.47      0.04
                        2/22/96   0.00    6.78    2/2 2/96    1056.24     14.79     774.71     10.85       25.63      0.38      0.03
                        2/29/96   0.00    6.79    2/29/96     1193.51     16.71     847.62     11.87       28.58      1.30      0.10
                        3/13/96   0.00    6.70    3/1 3/96    1304.16     18.26     300.13     4.20        22.46      0.91      0.07             400mis
                        4/11/96   0.00    6.72    4/11/96     1192.96     16.70     357.64     5.01        21.71      0.64      0.05
                          5/7/96  0.00    6.74      5/7/96    1000.90     14.01     321.37     4.50        18.51      0.17      0.01
                          5/91961 0.00    6.74      5/9/96    191.33      2.68      194.54     2.72        5.40       0.54      0.04
                          6/5/96  0.00    6.64      6/5/96    1647.09     23.06     22.26      0.31        23.37      0.48      0.04
                        MEAN=     0.00    6.72    MEAN=                   17.35                3.20        20.55                0.116
                        MEDIAN    0.00    6.74    MEDIAN                  18.26                0.86        20.71                0.062
                        STDDEV    0.00    0.21    STDDEV                  5.17                 3.94        5.09                 0.141
                          N        1 5     1 1       N                     i's                 1 5          1 5







                                                                                                                                                                                                                                                                                                                 WELLVA*"
                                                                                                                                                                                                                                                                                                                            mw I m                                        a,                     TIME FILARI
                                                          TABLE ON: We, WiRN-Ma0blo"Ical Dotb."                                                                                                                                                                                                                                                                3          210                    H---S
                                                                                                                                                                                                                                                                                                                                                                                                 L1-9
                                                                                                                                                                                                                                                                                                                            312195     3901        206         INS        0,24                   LFIF
                                                                                                                                                                                                                                                                                                                            311.19L_   330         210         0,2.       7                      NFF
                                                                 DATE                                            Enteroci=i                  CP             TIDE      FILTER                                                                                                                                                           350         200         20         SMIS                   LIF
                                                                                                                                                                                                                                                                                                                            1125195    '055        .50         1-         29 25                  "FF
                                                                 113195                    21000                             35              75             H     AAF. FC tntc                                                                                                                                              $1.195                                                               If -We-
                                                                 2/16/95                                                                                    L         NO BW                                                                                                                                                 smm-       1380        10"         C24        0924                   ERF
                                                                 3/2/95                                                                                                                                                                                                                                                     6126,05    3375        2100        9.25       7315                   wRF
                                                                                                                                                            L         NO BfN                                                                                                                                                7112,05    615         176         0.5        2,28                   HIs
                                                                 3130/05                                                                                    H         NO B/N                                                                                                                                                slifics    so          a           135.5      1.75                   wFIF1
                                                                 416/95                                                                                     L         NO B/N                                                                                                                                     -111I.As              ii          5           No         a's                    IF  I
                                                                                                                                                                                                                                                                                                                            '-sles     1.1                     7343       0,24                   Is IF1
                                                                 4/25/95                                                                                    H         NO SIN                                                                                                                                                Vl @.2:    2,1,00                  -25        04.                    EFF
                                                                 5/11 f95                                                                                   E         NO BIN                                                                                                                                                           I,                      ...        0.75                   FIF
                                                                                                                                                                                                                                                                                                                            3126196    sees        9600        12.5       2                      IS RF
                                                                 6126/95                                                                                    HF        NO B/N                                                                                                                                                519196     200001      10100       29         OJ                     LE RF
                                                                 7/12/95                                                                                    H         NO BIN                                                                                                                                                           Sq,.SSI                 Cas        LID
                                                                 8/16/95                                                                                    HF        NO B/N                                                                                                                                                           649C44 1 3411414        1141-      to.43
                                                                                                                                                                                                                                                                                                                            MINOT      14...       12.00       14.00      14.0.
                                                                 11/18/95     1            60               22                                              HE           PF
                                                                 2fl/96       1                                                                             HE        NO B(N                                                                                                                                                'IME                   w           I E        CP                     TM FLIER
                                                                 2/8/96                    58                                                               F            FF                                                                                                                                                 113,05     MAS                     1110       0   -H                 At m
                                                                 3/28196                   432              424                                             LE           PF                                                                                                                                                 2116,95                                           1                  L
                                                                 5/9/96                    40               20               400             4.0            LE           PF                                                                                                                                                 3121.5     33.5        29.25       12         044 1                  LIs
                                                                                                                                                                                                                                                                                                                            313MS                                             I                  m"Do
                                                                 GEOMEAN.                  $4.1             57.1             400mO           4*9                                                                                                                                                                            4M95       11.23       6.25        2.75       O@24                   Lw
                                                                                                                                                                                                                                                                                                                            .125,93    2.75        2.25        3          0.2,1                  "PIN
                                                                 STDEV                     189.9            232.7                                                                                                                                                                                                           smins                                                                E"Do
                                                                 OOLINT                    4                3-               1                                                                                                                                                                                              !M            .                                                      wNO OWN
                                                                                                                                                                                                                                                                                                                            "IMS,                                                                If- NO "
                                                                                                                                                                                                                                                                                                                            SMaiss                                                               wno ON
                                                                            A@                                                                                                                                                                                                                                              1111.195                                                             HNos
                                                                 DATE         I            FC               w    Entwoc@i                    CP             ME        FILTER                                                                                                                                                tims'lls   2130        sm          also       0.24                   of Re
                                                                 113195                    1160             08               153             330            H            m                                                                                                                                                  NIM        100         250         111        1.0                    FIFIF
                                                                 2116195                                                                                    L     di-dn't satvIp                                                                                                                                            3128106    300         200         232        1.0                    LE -W
                                                                 3/2/95                                                                                     L         NO SIN                                                                                                                                                519,96     120         30          is         095                    LE FF
                                                                                                                                                                                                                                                                                                                                       ...22       .6.0.       41.99      9
                                                                 3130195                                                                                    H         NO BfN                                                                                                                                                5"Nof                  1.1.12                 Me
                                                                 4/6195                    67.25            51               23              0.49           L            PF                                                                                                                                                            Mo          7.09        7.09       1'.4141
                                                                 4/25/95                                                                                    H         NO B/N
                                                                 5/11/95                                                                                    E         140 B(N                                                                                                                                               EATE       FC 1        ED          -V@-           --TW- -WYE-R-
                                                                 6/26/95                                                                                    w         NOB                                                                                                                                                   V13105     0           0           0          '60                    mAt
                                                                 7112195                                                                                    H         NO B(N                                                                                                                                                31214S     0.24        0,24        0@24       0,24                   LIs
                                                                 8116/95                                                                                    HF        NO BfN                                                                                                                                                3130M      Om24        0.24        0.24       1.5                    If IF
                                                                                                                                                                                                                                                                                                                            .... so    Om24        024         10.24      1                      LR,
                                                                 11/18/95                  6.6                                                              HE           FF                                                                                                                                                 4125/93    Or24        0.24        10.24      0.24                   HFF
                                                                 211/96                                                                                     HE        NO B/N                                                                                                                                                smills     0424        0.,21       024        0.25                   IF FF
                                                                 218/96                    0.24             0.24             0.25            3.5            F            PF                                                                                                                                                 6/29195    0924                    Cm24       0.24                   IS: FF
                                                                                                                                                                                                                                                                                                                            M2195      *m2d        0+24        0.76       0.75                   "FF
                                                                 3/28/96                   0-24             0-24             O@24            3              LE           PF                                                                                                                                                 stigigs    0424        0+24        0024       Dm24                   wIN
                                                                 5/9/96                    Oq24             Ow24             Da24            i              LE           PF                                                                                                                                                 I M9195    02.         0.24        -- 0.24    Ob24                   Kw
                                                                                                                                                                                                                                                                                                                            11         0424        0.24        0+24       0.24                   111 RF
                                                                 GEOMEAN.                  1.43             0.92             0.76            1.51                                                                                                                                                                           2 IN.      -4          0.24        0,25       d24                    FRF
                                                                 STDEV                     29.39            25.38            11.38           1.48                                                                                                                                                                           128196     0024        OF24        0024       Ov24                   LE FIF
                                                                                                                                                                                                                                                                                                                                       Om24        0.2.        Om24       0624                   IN AF
                                                                 COUNT                     @5               4                4               4                                                                                                                                                                              OEOMEM&    0.14        0.24        0.20       9.34
                                                                                                                                                                                                                                                                                                                            MEN        goes        a."         @.,a       0.44
                                                                            0up
                                                                 DATE                      Fr,              EV   Enterocc=                   CP             TIDE      RLTER
                                                                 113195                    0                0                0               13             H            m
                                                                 2116195                   7                3                0.24            0.49           L            S
                                                                 3/2/95                    0.24             0.24             0.24            0.24           L            PF
                                                                 3/30/95                   0.24             O@24
                                                                                                                             0.24            0.24           H            PF                                                                                                                                                 ME         PC          ED          E@         (P                     I1W FLIER
                                                                 4/6/95                    0.24             0+24             0.24            0.24           L            PF                                                                                                                                                 3124194    0.24        0.24        0.2.       0.24                   tE Ir-
                                                                 4/25/95                   0.24             0.24             0.24            0.24           H            PF                                                                                                                                                 5,9196     0.2.        0.24        0.24       024                    LIN,
                                                                                                                                                                                                                                                                                                                            GEOMEAN.   9.24        ..24        4.24
                                                                 5/11/95                   1.5              1.5              0.24            0.24           E            FF                                                                                                                                                 couwr      i           2           2          2
                                                                 6/26195                   0.24             0.24             0.24            0.24           w            FF                                                                                                                                      0RUM"I
                                                                 7/12195                   0.24             0.24             0.24            0.24           H         - PF                                                                                                                                                  WE _       -1C -1C                    -CF1        -Tff-              FLIER
                                                                 8/16/95                   0.24             0.24             0.25            0.24           HF           PF                                                                                                                                                 3128104    0.24        024         0424       0.24                   LE FIF
                                                                                                                                                                                                                                                                                                                            519,98     024         0.24        0024       0924                   LFIF
                                                                 11/14/95                  0.24             0+24             0.24            0.24           H            FF                                                                                                                                                            4.24        0.14
                                                                 11/18/95                  0.24             0.24             0.24            0.24           FE           FF                                                                                                                                                            a           2
                                                                 2/1/96                    0.24             0.24             0.24            0.24           HE           PF
                                                                 2/8/95                    0.24             Om.24            0.24            0.24           F            PF                                                                                                                                                 DAIE       PC          ED          E-         cr                     TIDE --fKT-EA
                                                                 3128/96                   0.24             0.24             0.24            0+24           LE           FF                                                                                                                                                 3/20/96    0.2.        02.         0.2.       O@24                   a
                                                                                                                                                                                                                                                                                                                            519,96     024         024         Om24       .1.                    LRE
                                                                 5/9/96                    O@24             0.24             0.24            0.25                        PF                                                                                                                                                            CS4         ease        0024       0.24
                                                                 GEOMEAN=j                 0.27                                                                                                                                                                                                                             CXKAWF     2           2           2          2
                                                                 STOEV                     0.34             01.34            0                                                                                                                                                                                   waowp"
                                                                                                            14                                                                                                                                                                                                              mili                   ED          t-         CP                     Im FLIER
                                                                 COUNT                     14                                14                                                                                                                                                                                             3120106                *21         0 11       0 2:                   tE-FF
                                                                                                                                                                                                                                                                                                                                                   0@24                   0,

                                                                                                                                                                                                                                                                                                                                                   2                      2
                                                                                                                                                                                                                                                                                                                            GSWEAW.
                                                                                                                                                                                                                                                                                                                            STM











                                                                      TABLE 81: Slte KDB-Nutrlent Database

                                                                      WELL: KOS-                                                                 WEU@ KDO-1;
                                                                      DATE                    ISALITEW I ON I H20 DE07TW                             DATE          N03            M03-N    NH4              NH4-N  DIN       P04               P04    TIDE    ALTER
                                                                      1/9/95                  0.20 5.50    6.271               49.50                 1/9/95        526.25         7.37     52.83            0.74   8.11-     0.07              0.01   L       m
                                                                      317/95                  0 20 5.20         5.32           241.50   7.25         3/7/95        1163.04        16.28    16.58            O@23   16.51     0.03              0.00   L       PF
                                                                      3/23195                 0.00         6.39 4.96           468.00   4.70         3/23/95       203.67         2.85     12.33            0.17   3.02      0.07              0.01   L       FF
                                                                      414/95                  0.00         6.34 5.48           1834.06  2.94         4/4/95        169@93         2.38     44.65            0.63   3.00      0.06              0.00   L       PF
                                                                      512195                  0.00         6,49 5.83           66.00    10.61        5/2/95        339.31         4.7S     33.96            0.48   5.23      0.04              0.00   L       PF
                                                                      6122/95                 0.00         6.60 5.82           15.60    19.23        5/22/95       236.67         3.31  1  36.42            -0.51  3.82      0.98              0.08   H       FF
                                                                      6/21/95                 0.00         6.61 6.49           254.80   1@26         6/21/95       1234.96        17.29    20.60            0.29   17.58     O@25              0.02   E       PF
                                                                      7/17195                                   7.91                                 7/17/95                                                                                          L       NO B/N
                                                                      8/21/95                                   8.38                                 8/21/95                                                                                          H       NO B/N
                                                                      10/19195                                  7.51                                 10119/95                                                                                         E       NO BIN
                                                                      2/29/96                 -0.00 3.20   6.30, 4.30                                2/29/96       554.84         7.77     45.80            0.64   8.41      0.17              0.01   E       FF
                                                                      4/4/96                  0.00 7.80    6.45 4.92                                 4/4/96        169.93         2.38     48.02            0.67   3.05      0.14              0.01   H       FF
                                                                      5/30/96                 0.00 11.40   6.54 - --                                 5/30/96       116.05         1.62     26.92            0.38   2.00      O@41              0.03   H       FF
                                                                      MEAN.                   0.04 6.62    6.441 6.04                                MEAN.                 1      6.60                      0.47   7.07                        0.017
                                                                      MEDIAN                  0.00 5.50    6.451 5.66                                MEDIAN                       4.03                      0.49   CS2                         0.008
                                                                      STODEV                  0.08 3.13    0.131 1.28                                STDDEV                       5.76                      0.20   5.69                        0.023
                                                                          N                   toS          9    12                                     N                          10                        10     10                          10

                                                                                                                                                WELL- KDS-2,
                                                                      DATE                    SAL FTaW PH H20 DEPTH            TSS      %OM          DATE          N03            H03-N    NH4              NH4-N  DIN       P04               P04    TIDE    ALTER
                                                                      119195                                                                         1/9/95                                                                                           L didn't sam;
                                                                      3/7/95                                                                         3/7/95                                                                                           L Jidn't sam
                                                                      3/23/95                                                                        3/23/95                                                                                          L Jidn't sam
                                                                      414/95                  0.00         6.20 5.90           658.00   4.26         4/4/95        631.92         8.85     10.05            0.14   8.99      0.04              0.00   L       PF
                                                                      5/2/95                  0.00         16.3116.22          902.00   7.54         5/2195        145.24         2.03     6.23             0.09   2.12      0.03              0.00   L - PF
                                                                      5/22/95                 0.00         6.25 6. 7           75 00    480          5/22195       81.69          1.14     8.45             0.12   1.26      0.76              0.06   H       PF
                                                                      6/21/95                 10.00        5.72 6.i7    -37-3-2@1.@' 02              6/21/95       50.46          0.71-    5.78-            0.08   0.79      0.22              0.02   E       PF
                                                                      7/17/95                 16.50             8.00                                 7117195                                                                                          L       NO sm--
                                                                      8/21/95                 0.00         7.17 8.30           3 0 S.- I @@' 1       8/21/95       14.96          0.21     11.97            0.17   0.38      2.37              0.19   H       PF
                                                                      10/19/95                14.00             7.61                                 10119/95                                                                                         E       PF. NO N
                                                                      2/29196                                                                        2/29/96                                                                                                  Sample
                                                                      4/4/96                                                                         4/4/96                                                                                                   Sample
                                                                      5/30/96                 0.00 11.50   6.49                                      5/30/96       50.39          0.71     4.79             0.07   0.77      0.24              0.02   t.      PF
                                                                      MEAN.                   0.00 14.00   6.36 6.85           407.74   6.15         MEAN.                        2.27                      0.11   2.38                        0.048
                                                                      MEDIAN                  0.00 14.00   6.28 6.50           373.20   4.80         MEDIAN                       0.93                      0.1        2                       0.0181
                                                                                                                                                                                                            0
                                                                                                                                        4.553        STDDEV                       3.28                      0.04
                                                                      STDDEV                  0.00 2.50    0.47 0.98-          374.55                                                                              3                           0.071
                                                                          N                   63           6    a              5                       N                          6                         6                                  6

















                                                                      DATE                    SAL TE)IF    -PH H20 DEPTH       TSS      %OM          DATE          -563---        N03-N    NH4              NH4-N  DIN       P04               P04    TIDE    ALTER
                                                                      1/9/95                  0.20 5.20    6.27                43.70                 1/9/95        184.45         2.58     79.82            1.12   3.70      0.07              0.01   L       M
                                                                      317195                  0.20 5.00         5.85           16.40    26.83        3/7/95        382.60         5.36     8.88             0.12   5.48      0.03              0.00   L       PF
                                                                      3/23/95                 0.00         5.83 5.57           182.00   5.05         3/23/95       488.65         6.84     15.19            0.21   7.05      0.03              0.00   L       FF
                                                                      4/4/95                  0.00         5.96 6.04           1248.00  5.29         4/4/95        266.12         3.73     49.62            0.69   4.42      0.04              0.00   L       FF
                                                                      5/2/95                  0.00         6.23 6.26           742.00   4.72         5/2/95        67.36          0.94     28.41    -0.40-         1.34      0.02              -0.00  L       FF
                                                                      5/22/95                 0.00         16.1916.23          274.33   3.66         5/22/9S       123.53         1.73  ,  47.45            0.66   2.39      0.75              0.06   H       PF
                                                                      6/21/95                 0.00         6.57 6.87           283.67   2.47         6/21/95       1789.43        25.05    138.25           1.94   26.99     0.23              0.02   E       NOB
                                                                      7/17/95                                   8.20                                 7/17/95                                                                                          L       NO EYN
                                                                      8/21/95                                   8.40                                 8/21/95                                                                                          H       NO S/N
                                                                      10/19/95                                  7.58                                 10119/95                                                                                         E       NO B/N
                                                                      2/29196                 0.00 3.10    6.84 5.12                                 2/29/96       960.32         13.44    110.70           1.55   14.99     0.11              0.01   E       FF
                                                                      4/4196                  0.00 9.00    6.83 5.62                                 414/96        167.05         2.34     66.21            0.93   3.27      0.07              0.01   H       PF
                                                                      5130196                 0.00 12.20   6.75 6.04                                 5/30196       50.15          0.70     15.33            0.21   0.92      0.30              0.02-  H       FF
                                                                      MEAN.                   0.04 6.90    6.39 6.40                                 MEAN.                        6.27                      0.78   7.06                        0.013
                                                                      MEDIAN                  0.00 5.20    8.27, 6.14                                MEDIAN                       3.15                      0.68   4.06                        0.005
                                                                      STODEV                  10.08 3.66   0.37 1.06                                 STDOEV                       7.61                      0.61   8.08                        0.018
                                                                          N                   10 IS        9    12                                     N                          10                        10     10                          10


                                                                      DATE                    LTEMP        PH H2D DEPTH        TSS      %OM                        N03            N03-H    NH4              NH4-N  DIN       P04               P04    TIDE    ALTER
                                                                      1/9/95                                                                         1/9195                                                                                           L       NO BtN
                                                                      3/7195                  0.20 6.00         6.04           35.40    12.99        3/7195        1414.94        19.81    3.49             0.05   19.86     0.03              0.00   L       FF
                                                                      3/23/95                 0.00         6.37 5.73           4.00     30.00        3/23195       1268.80        17.76    7.66             0. 11  17.87     0-06              0.00   L       FF
                                                                      414/95                  0.00         6.54, 6.18          267.00   9.74         414/95        1344.46        18.82    28.42            0.40   19.22     0.08              0.01   L       PF
                                                                      5/2/9S                  0.00         6.20 6046           279.00   9.68         5/2/95        1247.32        17.46    36.75            0.51   17.98     0.01              0.00   L       NOS
                                                                      W22/95                  0.00         6.45 6.40           798.50   5.82         5/22/95       1317.87        10.45    28.40            0.40   18.85     0.77              0.06   H       NOB
                                                                      6/21/9S                                   7.08                                 6121/95                                                                                          E       NO BIN
                                                                      7/17/95                                   8.00                                 7/17195                                                                                          L       NO 8IN
                                                                      8/21/95                                   8.47                                 8/21/95                                                                                          H       NO B/N
                                                                      10/ 1 Was                                 7.64                                 10/19/95                                                                                         E       NO B/N
                                                                      2/29/96                 0.00 3.90    6.99 5.31                                 2/29/96       943.32         13.21    84.00            1.18   14.38     0.10              0.01   E       PF
                                                                                                           i.Y4- --5.85                                                .14                                         12.44                       0.01   H       FF
                                                                      4/4/96                  0.00 12.00                                             V4196         798            11.17    90.51            1.27             0.13
                                                                      5130196                 .0.00. 14.50. 6.70 .6.31                               5130/96       876.37         12.27    48.79            0.68   12.95     0.23              0.02   H       PF
                                                                      MEAN.                   0.03 9.10         .62                                  MEAN.                        10.12                     0.37   16.69                       0.014
                                                                                              10.001 9.00       G'.36                                MEDIAN                       11.61                     0.46   17.92                       **7
                                                                                              0.071 4.97   10.281 0.97                               STDOEV                       3.35                      0.45   2.96                        ON20
                                                                                              -4 14        17 1 12                                     N                          a                         a      a                           a        Ed












                                                            WELL KDS-5                                                                     WELL XJD"
                                                                 DATE           I SAL TBAI            PH H20 DEPTH                TSS -%-0-M               DATE                      -NH-4 -WH-4-N                 DIN P04              P04     T12E_  FILTER
                                                                 1/9195                                                                                    It9195                                                                               L      NO BIN
                                                                 3/7195         O@80     5@00                  AII00              156.25 3@86              3/7/96 1656.881 23.20     3.08             0,04         23.24 004            0.00    L      PF
                                                                 3123/95        0.00                  &02      3.48               6&00 3.10                3/23195 1585,381 ?2.20    4.11             0.06         22.25 0.05           0.00    L      PF
                                                                 414195         0.00                  6.00     3.96               23.20 3.45               4/4195 1823.241 25.53     15.04            0,21         25.74 0.07           0.01    L      PF
                                                                 5/2/95         0.00                  6.58_                       774.00 316               5/2/95 1100.43 15.41      11.17            0.16         15.56 O@ 12          0.01    L      PF-
                                                                 5/22195        0.00                  6.15     4.46               311.00 2.25              5/22/95 1378.24 19.30     13.29            0.19         19.48 0.79           0.06    H      PF-
                                                                 6121195        0.00.                 6.28,    5.28               1402.00 0.93             6/21195 1199.40 16.79     11.97            0.17         16.96 0.23           0.02    E      PF
                                                                 7117/95                                       6.51                                        7/17/95                                                                              L      NO B/N
                                                                 8/21/95        0.00                           6.87                                        8/21/95                                                                              H      NO N
                                                                 10/19/95                                      5.60                                        10/19/95                                                                             E      PF, NO N
                                                                 2129196        0.00     4.80         6.06     2.98                                        2/29/96 1247.64 17.47     60.67            0.85         18.32 0.19           0.01    E      VF-
                                                                 414/96         0.00     8.90         6.95     3.35                                        414/96 1214.21 17.00      74.74            1.05         18.05 0.04           0.00    H      PF
                                                                 5/30/96        O@00     11.70        6.84     4.18                                        5/30/96 130 1.01 18.21    48.86            0.68         18.90 0.25           O@02    H      PF
                                                                 MEAN.          0.00     7.60         6.46     4.61                                        MEANx         19.45                        0.38         19.63                0.015
                                                                 MEDIAN         0.00     6.95         5.43     4.18                                        MEDIAN        16.21                        0.19         18.90                0.009
                                                                 STDDEV         10.2S,   3.32         0.40,    1.29                                        STODEV        3.42                         0.38         3.27                 0.019
                                                                                N        4            a        11                                          N                   9                      9            9                    9

                                                            WELt-- K094                                                                    WEWKD"@
                                                                 DATE           I  @'FTEW             -PH H20 DEPTH               TSS %om  1               DATE F-N-O3   N03-N       NH4              NH4-N        DIN PO4              P04     TIDE   RLTER
                                                                 1/9/95         0.30     6.10         6.27                        25.20                    119/95 1397.04 19.56      22.23            0.31         19.87 0.11           0.01    L      M
                                                                 317/95         0.20     5.50                  5.53               14.75 21-19              3/7/95 1381,731 19.34     5.39             0.08         19.42 0.13           0@01    L      PF
                                                                 3123195        0.00                  6.18     5.24               79.00 3.04               3/23/95 1479.30 20.71     3.58             0.05         20.76 0.10           0.01    L      PF
                                                                 4/4195         0.00                  5.83     5.80               6.40 12.50               4/4/95 1625.20 22.75      17.44            0.24         23.00 0.07           0.01    L      PF
                                                                 5/2/95         0.00                  6.81     6.23               14.80 10.81              5/2/96 1291.66 19.08      15.08            0.21         18.29 0.05           0.00    L      NOS
                                                                 5/22/95        0.00                  6.67     6.22               456.00 3.07              5/22/95 1351@58 18.92     41.74            0.58         19.51 0 77           0.06    H      NOS
                                                                 6121/95                                       6.99----                                    6/21195                                                                              FE     NO B/N
                                                                 7117/95                 17.50                 8.57                                        7117195                                                                              L      NO B/N
                                                                 8121/95                                       9.78                                        8/21195                                                                              H      NO B/N
                                                                 10/19/95                                      9.64                                        10/19/95                                                                             E      no H20
                                                                 2/29/96        0.00     4.50         7.68     4.65                                        2/29/96 1012.31, 14.17    373.73           5.23         19.40 0.13           0.01    E      PF
                                                                 414/96         0.00     9.50         7.27     5.23                                        4/4/96 1077.15 15.08      205.51           2.88         17.96 0.46           0.04    H      FIF
                                                                 5/30196        0.00     13.50        7.61     6.10                                        5/30/96 1347.13 18.86     189.72           2.66         21.52 0.35           0.03    H      PF
                                                                 MEAN.          0.06     9 43         6 79     667                                         MEAN.         18.61                        1.36         19.97                0.019
                                                                 MEDIAN         0.00     7:80         16:74    6:16                                        MEDIAN        16.92                        0.31         19.sl                0.010
                                                                 STDOEY         0.11     5.15         10.661   1.74                                        STDDEV        2.64                         1.82         1.58                 0.019
                                                                                N9       6            1 8 1


















                                                                                                                                           limi.
                                                                 DATE                                 PH H20 DEPTH                TSS %OM                  DA I'm        N03-N       NK4              NH4-N        DIN P04              P64     TIDE   RLTER
                                                                 119/95         0.30     6.00         6.27                        33.00                    1/9/95 1360.82 19.05      1.59             0.02         19.07 0.05           0.00    L      m
                                                                 3/7/95         0.50     5.00                  4.75               104.00 26.92             3/7195 1401.56 19.62      8.84             0.12         19.75 0.05           0.00    L      PF
                                                                 3/23/95        0.00                  6.34     4.19               286.00 5.971             3/23/95 1702.88 23.84     13.44            0.19         24.03_ 0.04          0.00    L      FF
                                                                 4/4/95         0.00                  6.40     4.71               93.67 7.831              414/95 1947.92 27.27      179.58           2.51         29.79 0.06           0.00    L      PF
                                                                 512/95         0.00                  6.77     5.22               602.00 3.651             5/2/95 1461.00 20.45      219.86           3.08_        23.53 0.04           0.00    L      FF
                                                                 5/22/95        0.00                  1        5.20                                        5/22/95                   1       1                                                  H      NO B/N
                                                                 6/21/95        0.00                           6.01                                        6/21/95                                                                              K      NO B/N
                                                                 7/17/95                                       7.33_                                       7/17/95                                                                              L      NO B/N
                                                                 8/21/95                                       7.69                                        8/21/95                                                                              H      NO BIN
                                                                 10119/95                                      6.35                                        10/19195                                                                             E      NO B/N
                                                                 2/29/96        0.00     4.90         6.75     3,63                                        2/29196 1120.51 15.69     2t.48            0.30         15.99_ 0.14          0.01    E      FF
                                                                 4/4/96         0.00     8.30         6.71     4.20                                        4/4/96 1502.02 21.03      278.33           3.90         24.92 0.05_          0.00    H      FF
                                                                 5/30/96        0,00     12.00        6.80     4.83                                        5/30/96 1744.73 24.43     483.20           6.76         31.19 0.40           0.03    H      FF
                                                                 MEAN.          0.06     7.24         6.68     5.34                                        MEAN.         21.42                        2.11         23.53                0.009
                                                                 MEDIAN         0.00     6.00         16.711   5.02                                        MEDIAN        20.74               1        1.41         23.70                0.004
                                                                 STDDEV         0.18     2.99         10.23    1.26                                        STDOEY        3.62                         2.43         5.22                 0.010
                                                                                N10      5            17       12                                          N                   a                                   a                    a

                                                                                                                                           ...... ......

                                                                 DATE           SAL      TBIP         PH H20 DEPTH                TW %OM                   DATE N03      N03-N       NK4              NH4-N        DIN P04              P04     TIDE   FILTER
                                                                 1/9/95                                                                                    1/9/95                                                                               L      NOWELL
                                                                 3/7/95         0.50     4.80                  5.59               23.80 8.40               3/7/95 1655.28 23.17      3.34             0.05         23.22 0.04           0.00    L      PF
                                                                 3/23/95        0.00                  5.84     5.06               55.60 7.55               3/23/95 ISS9.90 23.24     3.54             0.05         23.29 0.07           0.01    L      PF
                                                                 4/4/95         0.00                  5.75,    5.70               125.00 9.69              414/95 1797.84 25.17      9.76             0.14         25.31 0.06           0.00    L,     PF
                                                                 512/95         0.00                  5.92     6.31               272.33 2.69              512/95 1526.21 21.37      12.10            0.17         21.54 0.05           0.00    L      FF
                                                                 5/22/95        0.00                  6.00     6.10               543.00 12.21             5122/95 1748.23 24.48     16.13            0.23         24.70 0.77           0.06    H      FF
                                                                 6121/95        10.00                 6.39     7.68               6484.00 3.52             6/21195- 1695.58 23.74    62.07            0.87         24.61 0.24           0.02    E      NO
                                                                 7/17/95                                       9.01                                        7/17/95                                                                              L      NO BIN
                                                                 8/21/95                                       9.28                                        8/21195                                                                              H      NO B/N
                                                                 10/19/95                17.00                 8.15                                        10/19/95                                                                             E      PF, NO N
                                                                 2/29196        0.00     4.40         7.05     4.00                                        2/29/96 1240.40 17.37     58.09            0.81         18.18 0.21           0.02    E      FF-
                                                                 4/4/96         0.00     9.60         7.02     4.63                                        4/4/96 1310.42 18.35      77.15            1.06         19.43 0.07           0.01    H      FF_
                                                                 5130/96        0.00     12.00.       6.74 1   5.69                                        5130/96 1414.76 1981      133.81           1.87         21.68 0.40           0.03    H      PF-
                                                                 MEAN.          0.0                   341      43                 1251.12 5.68             MEAN.         21116                        0.58         22.44
                                                                                   6     9.00         6. .     ::..
                                                                 MEDIAN         0.00     9.80         6.2                         200.17 5.54              MEDIAN     -13.1-7                         0..23        23.22
                                                                 STDDEV         0.917    5.26 10.541           1.72               9570.58 3.424            STDDEV     -F.-78                          .            2.45                 0.019   1
                                                                                N        5            11       12                 a                        N                   9                      9            9
                                                                                                      T
                                                                                                               DEPTH              -

                                                                                                               400                1 @21
                                                                                                               3 48               00
                                                                                                               9.
                                                                                                               32@3 2
                                                                                                                                  7:4



















































                                                                                                                                  33 .0
                                                                                                                                  1.4 .0
                                                                                                                                  8,
                                                                                                                   @2
                                                                                                                                  00
                                                                                                                                  367
                                                                                                                                  .2 00












                                                              WELL KDB-9 0     EEP                                                      WELL KD8,9 DEEP
                                                                   DATE        i
                                                                               SAL TEW                                TSS       %OMJ                        DATE N03 I N03-N      NH4 I NH4-N           DIN       P04       P04          TIDE  ALTER
                                                                   1/9/95                                                                                   119195                                                                       L I NOWELL
                                                                   317/95                                4.80                                               3/7195                                                                       L     NO R/N
                                                                   3/23/95                               1.67                                               3/23/95                                                                      L     NOWN
                                                                   414194                                4.48                                               4/4/94                                                                       L     NO B/N
                                                                   5/2195                                10.04                                              5/2195                                                                       L     NO SIN
                                                                   5/22/95                               5.11                                               5/22195                                                                      H     NO EVN
                                                                   6/21/95                               5.47                                               6/21/95                                                                      HE    NO BIN
                                                                   7/17195            16.00              6.59                                               7/17195                                                                      L     NO BIN
                                                                   8/21/95                               6.80                                               8/21/95                                                                      H     NO BIN
                                                                   10/19195                              6.48                                               1@L'9 195                                                                    E     NO BIN
                                                                   2/29/96     0.00   4.50               4.33                                               2121 S@l 16                                                                  E     NO B/N
                                                                   4/4/96      2,00   8.90               4.60                                               4/4/96                                                                       H     NO BIN
                                                                   5/30/96     0.00   11.70              4.80                                                                                                                            H     NO BIN
                                                                   MEAN.                                 5.72

                                                              WELL: KDS-I.Q@...                                                         WELLIMS-10
                                                                   DATE        i@C F -Te-,p          H20 DEPTH        TSS       %OM                         DATE N03  N03-N       NH4       NHAI-N      DIN       P04       P04          TIDE  ALTER
                                                              _4/4196          0.001           8.88      0.90                                               4/4/96 26,99 O@38     8.33      0.12        0.49      1.62      0.13
                                                                   5/30196     0.00   10.60    8.06      1.25                                               5/30/96 4@52 0.06     S@97      0@08        0.15      1.12      0.09
                                                                   MEAN.       0.00   10.60    6.471     1.08                                               MEAN.     0.22                  0.10        0.32                0.108
                                                                                                                                                            MEDIAN    0.22                  0.10        0.32                0.108
                                                                                                                                                            STDDEV    0.22                  0.02        0.25                0.028 1
                                                                                                                                                            N         2.00                  2.00        2.00                2.00

                                                              WELUKD                                                                    WELL, XM,           ti
                                                                                                                                                                                            NH4-N       DIN
                                                                                                     H20 DEPTH        TSS       % DM7                       DATE F N03 N03-M      NH4
                                                                   DATE        I SAL r TEMP                                                                                                                       P04       P04          TIDE  ALTER
                                                                   414/96             1                  7.53                                               4/4/961                                                                            o B/N
                                                                   5/30196     0.00   10.50    6.30      4.95                                               5/30/96 _ 9.82 0.14   14.3L4    Om2O        Oq34      0.31      0,024
                                                                                                                                                            MEAN.
                                                                                                                                                            MEDIAN
                                                                                                                                                            STDOEV
                                                                                                                                                            N     I                      I























                                                                                                                                        w                   RuKOa 11
                                                                                               PH    M20 DEPTH        TSS
                                                                   DATE                                                         %OM                         N03       N03-N       NH4       NH4-N       DIN       P04       P04          TIDE  ALTER
                                                                   4/4/96      10.001          6.68      6.27     _-                    -4/4/96             1069.441  14.97       58.18     0.81        15.79     0.18      0.01
                                                                   5130/96     0.00   10.50    6.48      6.82                       --5/30/96               1089.12   15.25       60.47     0 85        16.09     0.30      0.02
                                                                   MEAN.       0.00   10.50    6.58      6.55                                               MEAN.     15.11                 0.83        15.94               0.019
                                                                                                                                                            MEDIAN    15.11                 0.83        15.94               0.019
                                                                                                                                                            STDOEV    0.19                  0.02        0.22                0.006
                                                                                                                                                            N         2.00     1            2.00   1    2.00  1             2.00


                                                                                                     H20 DEPTH
                                                                   DATE        SAL             PH                     TSS       %Om     jl                  N03          3-N      NH4       NH4-N       DIN       P04       P04          TIDE  ALTER
                                                                   414196      2.00            6.64      1.55                                               414195 49.81 0.70  1193.02      16.70       17.40     0.05      0.004              No
                                                                   5130/96            13.50              0.70                                               5/30/96                                                                            No B/N
                                                                                                                                                            MEAN.
                                                                                                                                                            MEDIAN
                                                                                                                                                            STDM
                                                                                                                                                            N


                                                                   DATE        I SAL  TOW7                            TSS       %ONI    I                   I'm       N03-N       NH4       NH4-N       DIN       P04       P04          TIDE  ALTER
                                                                   4/4/96                                1.74                                               4/4/96 42.52 0.60     6.73      0.09        0.69      0.12      0.01
                                                                   5/30196     O@To-  11.50    7.11  1   1.50                                               5/30196 1.12 0.02     4.97      0.07        0.09      0.27      0.02
                                                                                                                                                            MEAN.     0.31                  0.08        0.39                0.015
                                                                                                                                                            MEDIAN    0.31                  0.08        0.39                0.02
                                                                                                                                                            STDOEV    0.41                  0.02        0.43                0.01
                                                                                                                                                            N         2.00 1             1  2.00        2.00                2.00


                                                                   DATE               -TEMP    PH H20 DEPTH           7%        %Om                         DATE N03  NO          NH4       NH4-N       DIN       P04       P04          TIDE  FILTER
                                                                   4/4/96                                6.79                                               4/4/96                                                                             No B/N
                                                                   5/30196            9.70               5.69                                               5/30196                                                                            No WN
                                                                                                                                                            MEAN.
                                                                                                                                                            MEDIM
                                                                                                                                                            SMEY
                                                                                                                                                            NI
                                                                                                                                        %
                                                                                                                                                            I'99'
                                                                                                                                                            3,'795
                                                                                                                                                            3'95
                                                                                                                                                            4.4
                                                                                                                                                            gr
                                                                                                                                                            2
                                                                                                                                                            22






                                                                                                                  NTW






                      ---F I             I                                       I             I         I                              I
            WELL: KDB.LYSIM ER (MOM)                                             WELL: KDB-L SIMETER (MOM)
                  DATE      SAL[ TEMP      PH H20 DEPTH         TSS       %OM          DATE       N03 I     N03-N      NI-14     NH4-N      DIN      P04      P04      TIDE     RLTER
                  8/21/95                 7.47                 14.40      38.89        8/21/95  1386.571    19.41      1270.29 17.78        37.20   65.38     5.16      H
                  9/18/95   0.00                                                       9/18/95  1751.301    24.52      1233.05 17.26        41.78   92.13     7.28
            -10/19/95                                                                  10/19/95                                                                                 empty
                  11/14/95                                                             11/14/95                                                                                 10MIS
            -11/16/95                                                                  11/16/95                                                                                 30mls
                  1/30/96                                                              1/30/96                                                                                  empty
                  2/23/96                                                              2/23/96                                                                                  empty
                  2/29/96                                                              2/29/96                                                                                  empty
                  3/12/96                                                              3/12/96                                                                                  empty
                  3/13/96                                                              3/13/96                                                                                  empty
                   4/4/96                                                               4/4/96                                                                                  empty
                  4/11/96                                                              4/11/96                                                                                  empty
                   5/9/96                                                               5/9/96                                                                                  empty
                  5/30/96                                                              5/30/96                                                                               no sample
                   6/3/96                                                               613/96  1903.08     26.64      81.83     1.15       27.79   221.31    17.48 1           300mis
                   6/5/96   0.00          4.84                                          6/5/96  1757.96     24.61      86.62     1.21       25.82   266.34    21.04             300mis
                  MEAN=     0.00          6.16                 14.40      38.89        MEAN=                23.80                9.35       33.15             12.739
                                                                                       MEDIAN               24.56                9.24       32.49             12.378
                                                                                       STDDEV                  .08               9.44       7.60              7.714
                                                                                        N                      4                   4    -4                      4

            WELL: KDB-LYSIM      ER (SON)                                        WELL: KDB-LYSIMETER (SON)
                  DATE      SAL   TEMP     PH H20 DEPTH         TSS       %OM          DATE       N03 I     N03-N      NH4       NH4-N      DIN      P04      P04      71DE     RLTER
                8/21/96     0.00                                                       8/21/96  1386.571    19.41      1270.29   17.78      37.20   65.38     5.16              400mls
                  9/18/95                                                              9/18/95  1875.941    26.26      16.09.    0.23       26@49   145.74    11.51
                  10/19/95                                                             10/19/95          1                                                              E       NO N
                  10/24/95  0.00                                                       10/24/95 1508.381    21.12      4.26      0.06       21.18   219.87    17.37
                  11/1/951  0.00                                                       11/1/95  1415.881    19.82      1.93      0.03       19.85   177.87    14.05
                  11/14/951 0.00          6.61                                         11/14/95 1319.481    18.47      6.66      0.09       18.57   156.43    12.35
                  11/16/951                                                            11/16/95                                                                                 1 00MIS
                  1/30/96                                                              1/30/96                                                                                  20mis
                  2/22/96   0.00         16.95                                         2/22/96  1345.30     18.83      1116.65   15.63      34.47   180.47    14.25
            --2/29/96       0.00          6.82                                         2/29/96  1228.89     17.20      1159.23   16.23      33.43   279.69    22.09
                  3/12/96                                                              3/12/96                                                                                  5mIs
                  3/13/96                                                              3/13/96                                                                                  empty
                   4/4/96                                                               4/4/96                                                                                  empty
                  4/11/96   0.00          6.24                                         4/11/96  1427.67     19.99      492.17    6.89       26.88   189.00    14.93
                   5/9/96                                                               5/9/96                                                                                  empty
                  5/30/96                                                              5/30/96                                                                               no sample,
                   6/3/96                                                               6/3/96                                                                                  empty
                   6/5/96                                                               6/5/96                                                                                  empty
            --'iiEAN=       0.00          6.66                                         MEAN=                20.14                7.12       27.26             13.964
                  MEDIAN    0.00                                                       MEDIAN               19.62                3.56       26.68             14.151
            ---iTDDEV        0                                                         STDDEV                                    8.16       7.14
                             3      0       1         0           0         0                            -     8                   8         a                - 8












                                         TABLE 81: Site KDB-Microbi logicall Database
                                                                                                                                                                                                                 WELL. KOBA
                                                                                                                                                                                                                 DATE              RO                      -cp
                                             DATE                     Ec        Ent             CP        TIDE   FILTER                                                                                          1191 5                                                      L      NO B/N
                                             119195             0     0                         10        L        m                                                                                                               0.24 Om24                   0124          L        FF
                                             317/95             Om24  0.24      0.24            0.24      L        FF                                                                                            3/23/95  1        0.24 0,24       0.24        0.24          L        FF
                                                                                                                                                                                                                 4/4/95            Om24 6-2 -4 --@i 2 -4 --6- 2-4            L  -
                                             3/23/95            0.24  0.24      0.24            1         L        RIF                                                                                                                                                                FF
                                             4/4195             0.24  0.24      0.24            0.25      L        FF                                                                                            512/95                                                      L      NOB
                                             6/2/96             0.24  0.24      0.24            0.251     L        FF                                                                                            5/22/95                                                     H             -B
                                             5122/96            0.24  0.24      0.24            0.25      H        FF                                                                                            6/2T-/95                                                           NO B/N
                                             6/21/95            0.49  0.49      0.49            0.49      E        RIF                                                                                           7/17/95                                                     L      NO BIN
                                             7/17195                                                      L      NO B/N                                                                                          8/21/95                                                     H      NO BIN
                                             8/21/95                                                      H      NO B/N                                                                                          10119195                                                    E      NO B/N
                                             10/19/95                                                     E      NO B/N                                                                                          2/29/96           0.49 0.49                          1      E  I     FF
                                             2/29/98            0.24  0.24      0.24            0.6       E        FF                                                                                            4 41111           0    0.49                                          FF
                                                                0.24  0.24      0.24            0.24      w                                                                                                                                                                     i
                                             414/06                                                                FF                                                                                                                   0.49   1   0.09        0.49                   FF
                                             5/30/96            0.25  0.24      0.24            0.24      H        FF                                                                                            lEl               1    0.34       0.19        0.29
                                                                                                                                                                                                                 TXI               ::I
                                             GEOMEAN.           0.26  0.26      0.26            0.33                                                                                                                                    0.14       0.08        0.13
                                             SMEV               0.08  0.06   0.011-             0.28                                                                                                             COUNT             6.00 6.00       4.00        4.00
                                             COUN'r             9.00  9.00      9.00            9.00

                                                                                                                                                                                                                                                                             TIDE   FILTER
                                                                                                                                                                                                                 DATE     F FC           EE        Ent
                                             DATE               FC    Er        Ent             CP        TIDE   FILTER                                                                                          119/95   1                                                  L      NO BIN
                                             i /9/95                                                      L   didn't samp                                                                                        3/7/95            0.24 0.24       0.24        0.24          L        FF
                                             3/7/95                                                       L   dkinisamp                                                                                          3/23/95           0.24 0.24       0-24        0.24          L        FF
                                             3/23195                                                      L   didn't samp                                                                                        4/4/95            0.24 0.24       0.24        0.24          L        13F
                                             4/4/96             0.24  0.24    0.24              14.25     L        RIF                                                                                           5/2/9-5           0.24 0.24       0.24        0.24          L        FF
                                             5/2126             0.24  0.24      0.24            2         L        FF                                                                                            5/22/95           0.24 024        O@24        0.25          H        FF
                                             5/22196            0.24  0.24      0.24            2m25      H        FF                                                                                            6/21/95  _76--24       0:24       0.24        0.24          E        FF
                                             6/21196            0.24  0.24      0.24            0.5       E        FF                                                                                            7117/95                                                     L      NO B/N
                                             7/17/ ï¿½                                                      L      NO B/N                                                                                          8/21/95           0.09 0.09       1.9                       H      NO B/N
                                             8/211:5            0.09  0.09      0.09            0.09      H      NO B/N                                                                                          10/19/95          0.24 0.24       0.24        0.24          E      PF. NO N
                                             10119/95           0.24  0.24      0.24            0.25      E      PF, NO N                                                                                        2129/96           0.24 0.24       O@24        0.24          E        FF
                                                      --        - --- --    - ---                 -- -                                                                                                           4W96              0.24 -W-24 --O@-24-         0.25          w        FF
                                             2/29196                                                      E   NOSAMILE
                                             4/4/96                                                       H   NOSAM-LE                                                                                           5/30/96-          0.24- 0.24      0.24        2.25          H        FF
                                             S/30/96            0.24  0.24      0.24            7.S       H        FF                                                                                            GEOMEAM.          0.22 0.22       0.29        0.30
                                             GEOMEAN.           Oo2l  0.21      0.21            -le27                                                                                                            STOEV             0005 0*05       oa5o        0.63
                                             SMEV               0.06  0.06-     0.04            5.20                                                                                                             COUNT             11.00 11.00     11.00       10.00
                                             COUNT              7.00  7.00      7.00            7.00

                                                                                                                                                                                                                 DATE              FC    ED
                                             DATE               FC    Ec        Ent             CP        TIDE   FILTER                                                                                          119195            0 --o                       S             L        m
                                             119195             860   61S                       115       L        m                                                                                             317/96            7.5  7 Tr-, @17 5           0.24          L        PF
                                             3/7/95             75    71.5      0.24            0.24      L        FF                                                                                            3/23/95           0.24 0-24       0.24        0.25          L        PF
                                             3/23/95            1.6   1.5       0.24    -0.25             L        FF                                                                                            4/4/95            0.24 0.24       0.24        0.5           L        FF
                                             414/95             0.24  0.24      0.24            0.5       L        PF                                                                                            5/2/96                                                      L      NOB
                                             512/95             0.24  0.24      0.24            0.75      L        FF                                                                                            5/22/95                                                     H      NOB
                                             5/22/95            0.24  0.24      0.24            0.24      H        W--                                                                                           6/21/95                                                     @E     NO B/N
                                             6121/95                                                      E      NOB                                                                                             1                                                           L      NO BIN
                                             7117195                                                      L      NO B/N                                                                                          8/21195                                                     H      NO BIN
                                             8121/95                                                      H      NO B/N                                                                                          10/19/95                                                    E      not a drop
                                             10/19/95                                                     E      NO B/N                                                                                          2/29/96           6     6                                   E        FF
                                             2/29/98            1.6   0.24      0.49            0.5       E                                                                                                      4/4/96            0.49 0.49                                 w        FF
                                             414/96             0.49  0.49                      5 1                                                                                                              5/30/96           0449 0.49                                 H        FF
                                             5/30/96            0.24  0.24      0.24            3.25                                                                                                             GEOMEAN.          0.92 0.92       0.47        0.31
                                             GEOMEAMNU.         0.85  O.GL_ 0.27                0.90                                                                                                             STDEV             3.33 3.26       0.87        0.15
                                             SMEV               26.30 25.12     0.09            17.77                                                                                                            COUNT             6.00 6.00       3.00        3.00
                                             COUNT              S.00  8.00      7.00            8.00











                                                                                                                                                                                                               ZXD"
                                                                                                                                                                                                               LZ
                                                                                                                                                                                                          WELL
                                               DATE                                 Ent        CP         TIDE    FILTER                                                                                       DAM                                             CP      TM       FILTER
                                                              0          0                     0          L       W--                                                                                          4/4196                                                  w        NOB
                                               3/7/95         1          1          1          0.24       L       FF                                                                                           5/30/96         1.2       1.2     0.49     0.49         H          PF
                                                           O@24       Oa24          Oa24       i          L       RIF                                                                                     GEOMEAN-             1.2       Ia2     0.49     0.49
                                               4/4195      0.24       Ow24          Or24       Oa26       L       FF                                                                                           OOLKF           I         I       I             I
                                               W2195       0.24       0.24          0*24       Om24       L       FF
                                                                                                          H       NO B/N
                                                                                                          W       NO BIN                                                                                       DATE            PCI       Er      Ent           CP      TIDE
                                               7117196                                                    L       NO B/N                                                                                       414196                                                  w        NOB
                                               8/21/96                                                    H       NO B/N                                                                                                                                               H        NO B/N
                                               10/19196                                                   E       NO BIN
                                               2129/96     0.24       0.24          0.24       0.5        E       FF
                                               4/4/96      0.24       0.24          0.24       0.24       w       W-                                                                                           DATE                      Er      Ent           CP      TIDE     FILTER
                                               6/30196     -6:24      0.24          0.25       0.5        H       FF                                                                                           4/4/96          0.49      0.49                          w          FF
                                               ClEou       0.29       0.29          0.30       0.39                                                                                                            5/30/96         0.49      O@49    0.49     0.49         H          PF
                                               SMEV        0o29     _0.29           0.29       0.46         1                                                                                             GEOMEAN-             0.49      o4i     0.49     0.49
                                               coum        7.00       7.00          7.00       7.00                                                                                                                                      2       1             1


                                               DATE                                 Ent        CP                 FILTER                                                                                                                 Er      En,           (P      TIDE     FILTER
                                               1/9195                                                     L       NO WELL                                                                                      414196                                                  w        NOB
                                               3/7195      0.24       0.24          0.24       0.24       L       RIF                                                                                          513D196                                                 H        NO B/N
                                               3123/95     0.24       0.24          0.76       1          L       FF                                                                                      GEOIAEAN-
                                               414196      0.24       0.24          0.24       0.24       L       RIF                                                                                          COUNT
                                               512195      0.24       0.24          0.24       0.24       L       PF
                                               5/22/95     0.24       0.24          0.24       0.25       H       FF
                                               6121195                                                    E       NOS                                                                                          DATE            Fr,       Er      Ent           CP      TWE      FIL1151
                                               7/17/96                                                    L       NO B/N                                                                                                       0.40      0.49                          w          RIF
                                               8121/96                                                    H       NO S/N                                                                                       5/30/96         0424      Oa24    0.24     0.24         H          FF
                                               loilig/96   0.25       0.24          0.24       0.24       E       PF. NO N                                                                                GEOMEAN-             0.34      0.34    0*24          24
                                               MOM         0.24       Ow24          0.24       0.24       E       FF                                                                                           STIDEV          0.18      0.18
                                               414/06      om         0.09          0.49       1          w       PF                                                                                                           2         2       1
                                               S/30196     0.24       O@24          0.24       2.25       H       FF
                                               GEOMEAN.    0.22       0.22          0.29       0.42
                                               SMEV        0.05       0.05          0.18       0.69                                                                                                                                      EC      Ent
                                               Wiff           a          9          9          9                                                                                                                    91,                                                W        NO B/N
                                                                                                                                                                                                                    96                                                 H        NO BIN

                                               DATE                      IC         Ent        CP         TIDE    FILTER
                                               1/9/95   1                                                 L       NO WELL
                                               3/7/95                                                     L       NO B/N
                                               3123/95                                                    L       NO B/N
                                               414194                                                     L       NO S/N
                                               5/2/95                                                     L       NO S/N
                                               5122196                                                    H       NO SM
                                               6/21195                                                    w       NO B/N
                                               7/1719                                                     L       NO B/N
                                               8121195                                                    H       NO S/N
                                               10119/95                                                   E       NO BIN
                                               4/4/96                                                     HF      NO BIN
                                               5/3 196                                                    H       NO B/N













                                                                            TABLE 8J:               Site FDC-Nutrient Database

                                                                                      W
                                                                                      E
                                                                                      LL:
                                                                                      DATE          SAL                                                Tss        %OM           N03           N03-N           NH4           NH4-N                04N   P04              P04    TIDE         FLTER
                                                                                      1/9195        0.50       3.80                                                                                                                                                            N/A          M, NO N
                                                                                      3/9/96        -                              6.00                                                                                                                                        _N / A       NO 13/N
                                                                                      4/6/95                                       6.15                                                                                                                                        N/A          NO BIN
                                                                                      5/2195                                       6.43                                                                                                                                        NIA          NO BIN
                                                                                      5/22/95                                      6.28                                                                                                                                        N/A          NO B/N
                                                                                      6/5/96                                       6.54                                                                                                                                        N/A          NO B/N
                                                                                      6/21/95                                      6.51                                                                                                                                                     NO S/N_
                                                                                      7/17/95                                      7.31                                                                                                                                                     NO B/N
                                                                                      8/21/95                                      7.35                                                                                                                                                     NO BIN
                                                                                      I I t 14195   0.00 1          1        1     5.20                                      1337.98          18,73         292.38          4.09                 22.83 0.10             0.01                PF, NO B
                                                                                      MEAN          0.25 1     3.80                6.42                                                       18J3                          4.09                 22.83                  0.01
                                                                                      MEDIAN        0.25       3.80                6.43                                                       19.73                         4.09                 22.83                  0.01
                                                                                      S7T DWO E V   0.35                           0.66
                                                                                      N             2          1        0             9                0             0

                                                                                            FOC-2
                                                                                      WELL,
                                                                                      .DATE         S@-F_TBV           @R_ H20 DEPTH                   TSS        %OM          N03            N03-N          NH4            NH4-N                DIN   P04              P04    TIDE         FLTER
                                                                                      1/9/95        0.90 4.30        6.61                         115.60          ___ -      2003.05-         28.04        1324.10          18.54                46.58 0.78             0.06   N/A             M
                                                                                      3/9/95        0.80 3.80                      4.42           4230.00         3.40       176.21           2.47           7.71           0.11                 2.57  0.15             0.01   N/A             FF
                                                                                      4/6/95                                       4.82                                                                                                                                        N/A          NO a/N
                                                                                      5/2195                                       5.22                                                                                                                                        N/A          NO B/N
                                                                                      5/22/95                                      6.16                                                                                                                                        N/A          NO B/N
                                                                                      6/5/95                                       5.23                                                                                                                                        N/A          NO WN-
                                                                                      6/21/96                                      5.30                                                                                                                                                     NO B/N
                                                                                      7/17/95                                      6.22                                                                                                                                                     NO B/N
                                                                                      8/21/95                                      7.15                                                                                                                                                     NO BIN
                                                                                                    .00                            4.15                                      858.73           12.02        113.26           1.59                       0.14             0.01                PF, NO B
                                                                                      MEAN          0.57       4.05 6.61           5.30           2172.80         3.40                        14.18                         8.74-                .2!                    0.03
                                                                                                                     1.11          1:.22          2172.60         3.40                        12.02                         1.sq                 13 61                  0.0
                                                                                                               0: 1
                                                                                                               N
                                                                                                    01 1 .                                                                                    12.92                         10.24                .90                    0.0
                                                                                                                                                  2909.32                                                                                        22*                    ' 1
                                                                                                    0                                                                                                                                                                   3
                                                                                      N             3          2       1              9           1    2          1  1                          3                            3                   3                      3      1











                                                                                                                                                                                                                                                                                            elc!T Litz
                                                                                                                         @Iu
                                                                                                                                                                                                                                                                                            M'.1a
                                                                                                                                   :P PIPPP P M.I. P F                                                                               P*IP P1 I I I I I         pi@             PIP                         P
                                                                                                                                                                                                                                                 a


                                                                                                                                                                                                                                     pp
                                                                                                                                                  t    a n " V. a.
                                                                                                                                      9:2              P PP                                                                          P rP        P                                               PIP.'
                                                                                                                                                                                                                                                 :29t=9
                                                                                                                           IgI                    I               P                                                                                                     g
                                                                                                                                                  "" Prp.@
                                                                                                                                      6n,              .2=22
                                                                                                                                                  -1   .                                                                                           III         I1       0      -

                                                                                                                                   HPIPOZ!, PIP -PI`IP -1pill             I

                                                                                                                                                       _222                                                                                                                                               P
                                                                                                                     I   Itdfl     I I I I 1:n @                  11411   1  1
                                                                                                                                      6 6
                                                                                                                                                                                                                                                                               HPIPI.

                                                                                                                                                  s: a k          aa s Rp
                                                                                                                                                  P P!,                                                                                                                        ij;j:

                                                                                                                                                                                                                                                                                    all     R 11: 1














                                                             WELL: FDC-3
                                                             DATE      ( SAL TEMP         IpH I H20 DEPTH    TSS    %OM       NO3           N03-N    NH4         NH4-N    DIN     P04        P04 I TIDE       FILTER
                                                             1/9/95    0.50 6.00          6.61               20agO            83.98         1.18     15@56       0.22     1.39    0.16       0.01     N/A         M
                                                                       0.                     5.59                                                                        31-06         -0:- --@- -
                                                             3/9/95    so 6.00                               129.33 4.64     1849.10        25.89    368.64      5.16             0.05       00       /A          FF
                                                             4/6195                           6.03                                                                                                    N/A     NO B/N
                                                             6/2/95                           6.54                                                                                                    N/A     NO B/N-
                                                             5/22/95                          6.05                                                                                                            NO B/N
                                                             6/5/95                           639                                                                                                     N/A     NO B/N
                                                             6/21/95                          7.83                                                                                                            NO BIN
                                                             7/17/95                          9.13                                                                                                            NO B/N
                                                             8/21/9S                          9.01 ?                                                                                                          NO B/N
                                                             11/14/95  0.00                   5.58                           1396.02        19.54    989,04      13-85    33.39   O@45       0.04             PF, NO 8
                                                             MEAN      0.43 6.00 6.61         6.64           75.12  4.64                    15.54                6.41     21.94              0.02
                                                      ----WE-DIAN      -0.50 6.00         6.61 6.22          75.12  4.64                    19.54                5.16     31.05              0.01
                                                             STDDEV    0.40 0.00              1.23           76.67                          12.83                6.90     17.84              0.02
                                                             N         3       2          1    a             2                              3                    3        3                  3

                                                             WELL.     -4.."
                                                             DATE      SAL                -PH H20 DEPTH      TSS    %OM       N03           N03-N    NH4         NH4-N    DIN     P04        P04      IBE-- @Flll
                                                             1/9/95    1.00 1.80 6.61                                                                                                                 N/A         M
                                                             9 / 9-5   -0.40 2.50             5.10,                                                                                                   NIA     NO B)N
                                                             4/6195                           5.21                                                                                                    W1 -A NO -B/ N
                                                             5/2/95                           5.66                                                                                                    N/A     NO B/N  1
                                                             5/22/95                          5.33                                                                                                    N/A     NO B/N
                                                             6/5/95                           5.75                                                                                                    NlA-- NO B/N
                                                             6/21/95                          6.81                                                                                                            NO B/N
                                                             7/17195                          6.83                                                                                                            NO EVN
                                                             8/21/95                          6.75                                                                                                            NO B/N
                                                             11114/95  0.00                   4.80                           1152.99        16.14    1345.69     18.84    34.98   0.07 -0.01                  PF, NO B
                                                             WE-AN7-47- 2.15                                                                16.14                18,84    34.96              0.01
                                                             MEDIAN    0.40 2.15                                                            16.14                18*114   34.98              0.01
                                                      --gFD-DEV        -0.50 0.49
                                                             N         3       2                             0        0---l



















                                                             DATE      T-SAL F-'F&-V PH   H20 DEPTH          TSS    %OM       NO3           N03-N    NH4         NH4.N    DIN     P04        P04      TIDE    FLTER
                                                             1/9/96    0.20 7.00 6.61                        25.20            1.45          0.02     1.94        0.03     0.05    0.82       0.06     N/A         M
                                                             3/9/95    0.50 5.80              5.32           39.25  1.91      5.10          0.07     1.08        0.02     0.09    0.09       0.01     N/A         FF
                                                             4/6/9S    0.00 6.00 6.43         6.20           30.20  4.64      0.00          0.00     1.34        0.02     0.02    0.03       0.00     N/A         FF
                                                             6/2/95    0.00               6.36 6.29          296.67 1.80      4.88          0.07     2.74        0.04     0.11    0.17       0.01     N/A         FF
                                                             5/22/96   0.00               6.32 6.10          313.67 2.87      1.05          0.01     2.77        0.04     O.OS    0.80       0.06     N/A         PF
                                                             6/5/9S    0.00               6.48 6.67          6037.67 0.86     5.01          0.07     0.72        0.01     0.08    0.12  1    0.011    N/A         FF  1
                                                             6/21/95   0.00               6.39 6.77          452.20 22.38     5.55          0.08     1.11        0.02     0.09    0.28       0.02                 PF
                                                             7/17/95   0.00               7.12 7.43          3.40   35.29     2.11          0.03     3.11        0.04     0.07    0.48       0.04                 PF
                                                             8121195   0.00               6.67 7.60          5.20   23.08     1.50          0.02     3.36        0.05     0.07    0.44       0.03                 PF
                                                             11/14/95  0.00                   5.79                            9.96          0.14     20.13       0.28     0.42    0.26       0.02                 PF
                                                             MEAN      0.07 8.27          6.55 6.43          000.27 11.60                   0.05                 0.05     0.10               0.03
                                                             MEDIAN    0.00 6.00          6.46 6.29          39.25  3.76                    0.05                 0.03     0.08               0.02
                                                                                                                              il
                                                                                                                           11 F499 'I I


                                                                                                                                                                                        *
                                                                                                                                                                                                      NIA
                                                                                                                                                                                                      NA
                                                                                                                                                                                                      N A














































                                                             STDDEV    0.16 0.64          0.26 0.74          1971.13 13.30                  0.04                 0.00     0.11               0.02
                                                             N         10      3          6    9             9        a    1                10                   lo       10                 10

                                                                       . .........
                                                             DATE           T9V -PH H20 DEPTH                7W     %OM       N03           N03-N    NH4         NH4-N    DIN     P04        P04      TIDE    FILTER
                                                             9118/95 0.00                                                  7-23ssoi -3373            21.73       0,30     33.74     0.75     0.097-
                                                             MEAN
                                                             MEDIAN
                                                             STIDDEV
                                                             N











             TABLE SJ: Site FDC-MIcr biological Database
                                                                                                                                                   WELL, FOC-4
                                                                                                                                                   bx@             It            w       Enteroccod          CID       TIDE        FILTER
                                                                                                                                                       E
                 DATE            IC            EC      Enteroccoci       CP         TIDE         FILTER                                            1/9/95          0             0                           50        N/A            m
                1/9/96           0             0                         160        N/A          M, NO N                                           3/9/95                                                           ---f4-/A   -NO BAY-
                319/95                                                              N/A          NO B/N                                            4/6/95                                                              N/A     -MO -B/N
                4/6/95                                                              N/A          NO B/N                                            5/2/95                                                              N/A          0 B -/N
                5/2/95                                                              N/A          NO B/N                                            5/22/95                                                             N/A         NO B/N
                5/22/95                                                             N/A          NO B/N                                            6/5195                                                              N/A         NO B/N
                6/5/95                                                              N/A          Nd B/N                                            6/21/95                                                                     -NO B/N
                6/21/95                                                                          NO B/N                                            7/17/95                                                                     -NO -B/N
                7/17195                                                                          NO B/N                                            8/21/95                                                                         NO B/N
                8/21/95                                                                          NO B/N                                            11/14/95                                                                        PF, NO B
                11/14/95                                                                         PF. No B
                                                                                                                                                              -5
                            2                                                                                                                      DATE       F    FC,           EC      Enteroccod          CID       TIDE        FILTER
                           r -FC               EC      Enterocood        CID        TIDE         FILTER                                            1/9195          0             0                           0         N/A            m
                1/9/95           0             0                         25         N/A            m                                               3/9/95        @. 2 -5 --6.2 5              0              0         NIA            PF
                3/9/95           0.5           0.5          0            0          N/A            FF                                              4/6/95          0             0            0              0         N/A            FF
                4/6/95                                                              N/A          NO B/N                                            5/2/95          0             0                           0         N/A            PF
                5/2/95                                                              N/A          NO B/N                                            5/22/95         0             0            0       1 0.25           N/A            FF
                5/22/95                                                             N/A          NO B/N                                            6/5/95          0             0            0              0'        N/A            FF
                6/5/95                                                              N/A          NO B/N                                            6/21/95         0             0            0              0                        PF
                6/21/95                                                                          NO B/N                                            7/17/95    1    3             0.5         1.5             1                        PF
                7117/95                                                                          NO B/N                                            8/21/95         0             0.25         0              0                        PF
                8/21/95                                                                          NO B/N                                            11/14/95        0             0            0              0                        PF
                11/14/95                                                                         PF. NO B


                            -3
                               -Fr,            EC      Enterocood        CP         TIDE         FILTER
                1/9/95           0             0                         0          N/A            m
                3/9/95           0             0            0            0          N/A
                4/6/95                                                              N/A          NO B/N
                5/2/95                                1                         1   N/A          NO B/N
                5/22/95                                                             N/A          NO B/N
                6/5/95                                                              N/A          NO B/N
                6/21/95                                                                          NO B/N
                7/17/95                                                                          NO B/N
                8/21 95                                                                   t-zo B/N
                11/1  /95                                                                        PF, NO B
                                                                                                                                                                                 @25
                                                                                                                                                                                 0
                                                                                                                                                                                 0            0









                                                                                                        TABLE
                                                                                                SEABROOK SAMPLING DATES


                                                                                                           SITES
                                              DATE      TIDE(llam)          REM      FIET    F13 I FH I FIP             FE      m     viw-                           SSW
                                              12/7/94            LF         1        1
                                              1/3/95             HF                                                             1
                                              1/9/95             L
                                              1/16/95            H
                                              2/7/95             L          2        2       1
                                              2/9/95             LE                                   2        2        2
                                              2/16/95            H
                                              2/23/95            L                                                              2
                                              3/2/95             H                                                                         2
                                              3/7/95             LF                                                                                          2
                                              3/9/95             L                                                                                 2
                                              3113/95            @E         3        3
                                              3115195            H                           3        3        3
                                              3/23/95            L                                                      3                                    3
                                              3/30/95            H                                                              3          3
                                              4/4/95                                                                                                         4
                                              4/6/95             L                                                                         4       3
                                              4/13195            H          4        4
                                              4/18/95            IF                          4        4
                                              4/20/95            L                                             4        4
                                              4/25/95            FE                                                             4          5
                                              5/2/95             F                                                                                 4         5
                                              5/4/95             LF         5        5
                                              5/9/95             LE
                                              5/11/95            @E                                                             5          6
                                              5/18/95            LF                                            5        5
                                              5/22/95            LE                                                                                5         6
                                              5/24/95            @E                                   5        6        6
                                              5/31/95            F          6        6       5
                                              6/5/95             L                                                                                 6
                                              6/6/95             L                           6        4
                                              8/a/95             L
                                              6/12/95            H          7        7_      7
                                              6/14/95            w                                    7        7        7
                                              6/19/95            L                                                                                                   2
                                              6/21/95            LE                                                                                7-        7
                                              6/22/95            L                                                                                                   3
                                              6/26/05            H                                                              1          7
                                              7/S/SS             L          a        a-      8
                                              7/10/95            H                                             a        a
                                              7/11/95            L                                                                                                   4
                                              7/12/95            H                                                              a          a
                                              7/17/95            L                                                                                 a         a
                                              7/18/95            L          9        9       9
                                              7/19195            L                                                                                                   5
                                              7/24/95            H                                    9        9
                                              DATE               TIDE       FEH      FIET    RB       PH       IF       ic      CSL    WRH         FDC       KDO     SSW
                                              8/2/95             L          io       10
                                              8/14/95            L                                                                                                   a
                                              atle/95            L                                                              9          9
                                              8/21/95            FE                                                                                9         9
                                              8123/95            H                           10                         9
                                              10/5/95            HE         11                                                                                       1,2
                                              10110/95           FIF                 I I     11
                                              10/19/95           E                                                                                           10      8.9
                                              10/26/95           w                                                              10
                                              10/27/95           L                                                                                                   7
                                              10/31/95           L                                                                                              13,14.15
                                              11/7/95            H                                    10       10
                                              11/14/95           LF                                                                        10      10
                                              11/16/95           L                                                      10
                                              11/18/95           E                                                                         11
                                              12/5/95            H
                                              12/28/95           L          12
                                              1/30/96            E                                                                                                   8
                                              2/1/96             @E                                                                        12
                                              2/8/96             F                                                                         13
                                              2/20/96            w
                                              2122/98            F                                                                                                   5.7
                                              2/29/96            E                                                                                                   8,9
                                              3/12/90            L                           12                         12
                                              3/13/96            L                                                                                                   9
                                              3/28/96            LE                                                                        14                        3 4
                                              414/96             H                                                                                           12  3.4,5,7
                                              4/11/96            LE                                                             12
                                              4/18/98            w          13
                                              4/23196            L                                             12
                                              4/26/96            LE                                   12                13
                                              S/2/98             H                   12
                                              517/96                                                                            13                                   3,5,7
                                              5/9/96             L                                                                         is                        3.4
                                              5/23/96            L          14                                                                                       1.2
                                              5/28/96            E                                    13
                                              5/30/96            H                                                                                     K13           8.9
                                              6/3/96             w                                                              14                                   5,7
                                              6/s/96             L                                                                                                   10







               Table 10. Ranges of contaminant concentrations from all wells at each site


                                                                                                                                           Average
               Site Salinity Fecal coliforms Enterococci C. perfringens                   Nitrate       Ammonium          Phosphate       N03/NH4
                        PPT      CFU/100 ml CFU/100 ml CFU/100 ml                          mg/L             mg/L             mg/L            ratio*


                                                          River         Street
               REH   3 to 15        0 to 29            0-0.5           0 to 700       <0.01 to 15.3     0.56 to 21.5    <0.01 to 0.97         0.12
               RET    0 to 4       0 to 1400          0 to 40        0 to 16,000       <0.01 to 3.0     0.23 to 18.9    <0.01 to 0.62         0.15
               RB    4 to 26        0 to 65           0 to 830         0 to 875        <0.01 to 0.7    0.25 to 11.15 <0.01 to 1.2             0.26
               RH    2 to 17     0 to 19,000          0 to 350         0 to 285       <0.01 to 25.7     0.05 to 9.78      0.01 to 8.9         2.1
               RP    3 to 17        0 to 71           0 to 100          0 to 60       <0.01 to 13.8      0.20 to 9.9     <0.01 to 8.4         0.56
               RC    2 to 16       0 to 1140        0 to 4100          0 to 390        0.01 to 25.7     0.15 to 18.3      0.01 to 6.9         0.65


                                                               In       Town
               CSL       0          0 to 53           0 to 76          0 to 490        0.33 to 17.9    <0.01 to 17.8    <0.01 to 0.42         17.4
               WRH    0 to 1      0 to 21,000         0 to 420         0 to 330       <0.01 to 20.9     0.02 to 22.0 <0.01 to 1.7             12.4
               KDB    0 to 1       0 to 860            0 to 2          0 to 115        0.94 to 27.3      0.02 to 6.8    <0.01 to 0.19         16.1
               FDC    0 to 1         0 to 1           0 to 1.5         0 to 160        <0.01 to 28      0.01 to 18.8    <0.01 to 0.06         2.2
               * The ratios for mean nitrate divided by mean ammonium levels for each well were calculated, summed,
               and averaged for each site.









                                                                 TABLE 11
                                SEABROOK SURFACE WATER: NUTRIENT DATABASE
                           BOLD = mg/L


                           SITE: SSW I (REH DOWN STREAM)
                               DATE        pH      TSS     0/aORG    N03 N03 NH4             NH4        DIN      P04       P04
                               6/8/95
                               6/19/95     7.73    46.20   16.88     0.60   0.01    13.78    0.19       0.20     0.24      0.02
                               6/22/95             56.40   13.83     0.15   0.00    41.59,   0.58       0.58     1.24      0.10
                               7/11/95     7.48    25.80   18.60     1.79   0.03    63.34    0.89-      0.91     1.21      0.10
                               7/19/95     7.87    66.80   14.37     0.10   0.00    5.85     0.08       0.08     0.89      0.07
                               8/14/95     8.00    10.50   20.95     3.65   0.05    6.80     0.10       0.15     0.36      0.03
                               10/5/95                               0.93   0.01    5.80     0.08       0.09     0.45      0.04
                               1/30/96     7.52                      4.49   0.06    9.00     0.13       0.19     0.41      0.03
                               3/13/96     7.64                      0.39   0.01    8.44     0.12       0.12     0.49      0.04
                               5/23/96     7.44                      2.55   0.04    9.19     0.13       0.16     0.97      0.08
                               6/5/96      7.16                      3.88  10.05    17.63    0.25       0.30     0.89      0.07
                               6/11/96     7.56                      1.73   0.02    26.91    0.38       0.40     1.89      0.15
                               MEAN--      7.60                             0.03             0.27       0.29               0.06


                           SITE: SSW 2 (REH UP STR        M)
                               DATE        pH      TSS     %0@       N03    N03     NH4      NHAI       DIN      P04       P04
                               6/8/96
                               6/19/95     7.61    15.00   18.67     1.48   0.02    22.66    0.32       0.34     0.12      0.01
                               6/22/95             15.60   19.23     2.94   0.04    10.90    0.15       0.19     0.61      0.05
                               7/11/95     7.48    6.80    26.47     2.73   0.04    9.91     0.14       0.18     0.67      0.05
                               7/19/95     7.40    6.00    22.92     2.26   0.03    11.93    0.17       0.20     0.44      0.03
                               8/14/95     8.02    8.20    19.51     2.18   0.03    4.90     0.07       0.10     0.43      0.03
                               10/5/95                               22.73  0.32    3.61     0.05       0.37     0.57      0.04
                               10/27/95    7.24    5.60    10.71     6.79   0.10    3.93     0.06       0.15     0.93      0.07
                               1/30/96     7.60                      11.03  0.15    3.31     0.05       0.20     0.45      0.04
                               3/13/96     7.97                      0.39   0.01    2.52     0.04       0.04     0.49      0.04
                               5/23/96     7.36                      2.83   0.04    3.41     0.06       0.09     0.66      0.05
                               6/5/96      7.09                      2.24   0.03    5.38     0.08       0.11     0.56      0.04
                               6/11/96     7.33                      2.22   0.03    12.12.   0.17-      0.20     1.13      0.09
                               MEAN=       7.51                             0.07             0.11       0.18               0.05


                           SITE: SSM ',CAUSEWAY STREET BRIDGE)
                               DATE        PH      TSS     %ORG N03         N03     NH4      NI-14      DIN   ,  P04       P04
                               6/8/95
                               6/19/95     7.38.   3.80    47.37     43.11 10.60    4.24 1   0.06       0.66     0.14      0.01
                               6/22/95                               24.58  0.34    4.05     0.06       0.40     0.37      0.03
                               7/11/95     7.26    6.40    34.38     11.92  0.17    17.89    0.25       0.42     0.66      0.05
                               7/19/95     7.19    5.00    32.00     14.29  0.20    4.98     0.07       0.27     0.11      0.01
                               8/14195     7.80    20.00   21.00     1.66   0.02    13.16    0.18       0.21     0.20      0.02
                               10/27/95    7.29    4.00    50.00     10.96  0.15,   4.01     0.06       0.21     0.32      0.03
                               1/30/96     7.14                      75.95  1.06-   3.56     0.05       1.11     0.08      0.01
                               2/8/96      7.00                      166.44 2.33    15.33    0.21       2.54     1.29      0.10
                               3/13/96     7.39                      132.52 1.86    13.06    0.18       2.04     0.21      0.02
                               3/28/96     7.07                      106.07 1.48    8.64     0.12       1.61     0.10      0.01
                               4/11/96     7.04                      63.89  0.89-   5.15     0.07       0.97     3.28      0.26
                               5/7/96      7.08                      50.65  0.71    2.68     0.04       0.75     0.12      0.01
                               5/9/96      7.32                      66.47  0.93    3.49     0.05       0.98     0.67      0.05
                               6/5/96      7.23                      53.65  0.75    3.96     0.06       0.81     015       001
                                           7.42
                               6/11/96                               15.78  0.22                                 07        O@03
                               MEAN--   1  7.841                            0.78             0.10       0.93               0.04












                             SITE: SSW     (TIDAL CREEK BEHIND H     BERT)
                                 DATE       PH     TSS     %0@       N03    N03 NH4         NH4        DIN      P04      P04
                             -6/8/95                                                                   0.00
                               6/19/95     7.56    20.20   18.81     65.93  0.92   6.74     0.09       1.02     0.17     0.01
                               6/22/96             5.20    61.54     36.72  0.51   2.98     0.04       0.56     0.35     0:03
                               7/11/95     7.08    4.40    45.45     15.87  0.22   38.89    0.54       0.77     0.25     0.02
                             -7/19/95      7.29    7.75    66.13     37.02  0.52   4.01     0.06       0.57     0.09     0.01
                               8/14/95     7.64    14.63   20.51     3.43   0.05   6.02     0.08       0.13     0.24     0.02
                               10/27/95    7.23    4.20    47.62     42.80  0.60   5.00     0.07       0.67     0.55     0.04
                               1/30/96     6.98                      97.68  1.37   7.59     0.11       1.47     0.10     0.01
                               3/13/96     6.96                      137.301 1.92  46.91    0.66       2.58     0.21     0.02
                             -3/28/96      7.03                      75.55 11.06   7.07     0.10       1.16     0.12     0.01
                               4/11/96     7.15                      88.54  1.24   4.11     0.06       1.30     0.22     0.02
                               5/9/96      7.31                      69.52  0.97   3.60     0.05       1.02     0.73     0.06
                               6/5/96      7.10                      60.53  0.85   3.88     0.05       0.90     0.095    0.01
                               6/11/96     7.45                      57.72  0.81                                0.28     0.02
                               MEAN=       7.23                             0.85            0.16       0.93              0.02


                             SITE: SSW     (CSL DOWN STREAM)
                                DATE        pH     TSS     -Y.0RGG   N03    N03    NH4      NH4        DIN      P04      P04
                               6/8/95                                                                  0.00
                               6/19/95     7.38    4.60    56.52     24.33  0.34   5.91     0.08       0.42     0.26     0.02
                             -6/22/95              19.20   19.79     18.42  0.26   6.59     0.09       0.35     0.46     0.04
                               7/11/95     6.99    2.80    57.14     13.45  0.19   7.62     0.11       0.29     3.08     0.24
                             -7/19/95      7.06    8.12    44.62     21.89  0.31   7.95     0.11       0.42     0.20     0.02
                               8/14/95     7.52    7.75    38.71     2.01   0.03   8.37     0.12       0.15     0.22     0.02
                               10/27/95    7.02    2.20    36.36     19.29 10.27   2.66     0.04       0.31     0.35     0.03
                               1/30/96     6.83                      103.5811.45   5.70     0.08       1.53     0.40     0.03
                               2/22/96     6.74                      44.28 10.62   5.42     0.08       0.70     0.63     0.05
                             -3/13/96      6.96                      73.88  1.03   5.36     0.08       1.11     0.28     0.02
                               4/11/96     6.73                      49.18  0.69   7.96     0.11       0.80     0.21     0.02
                               5/7/96      6.95                      31.89  0.45   5.50     0.08       0.52     0.18     0.01
                             -6/3/96       6.98                      25.46  0.36   2.24     0.03       0.39     3.07     0.24
                               6/5/96      6.83                      27.47  0.38   8.70     0.12       0.51     0.16     0.01
                               6/11196     7.19                      32.51  0.46                                0.58     0.05
                               MEAN=       7.01                             0.49            0.09       0.54              0.06
                                           1
                             SITE: SSW     (RT. 286 BROWN'S BRID     E)
                                DATE        pH     TSS     OMM       N03    N03 NH4         NH4        DIN      P04      P04
                               6/8/95
                               6/19/95     7.65    11.20   17.86     1.64   0.02, 1.26      0.02       0.04     0.34     0.03
                               6/22/95             3.40    29.41     2.09   0.03   11.61    0.16       0.19     0.69     0.05
                               7/11/95     7.92    3.00    30.00     1.97   0.03   3.53     0.05       0.08     0.73     0.06
                               7/19/95     7.65    9.63    22.08     0.00   0.00   3.72     0.05       0.05     0.44     0.03
                               8/14/95     8.26    6.40    18.75     0.22   0.00   9.36     0.13       0.13     0.30     0.02
                               10/27/95    7.53    8.60    23.26     13.00  0.18   2.04     0.03       0.21     0.37     0.03
                               1/30/96     6.81                      15.78 10.22   11.93,   0.17       0.39     0.39     0.0
                               3/13/96     7.55                      41.76  0.58   4.52     0.06       0.65     0.33     0.03
                               6/5/96      7.19                      2.69 0.04     10.58    0.15       0.19     0.09     0.01
                             -6/11/96      7.33                      0.56   0.01   0.00     0.00       0.01     2.52     0.20
                               MEAN=       17.541  7.04  1 23.56            0.11            0.08       0.19              0.05












                                  SITE: SSW           (CSL UP STRE      M)
                                       D          I -pH-7 TSS             '/&C@ N03 -403                 NH4        NI-14         DIN          P04        P04
                                      6/8/95                    1
                                      6/19/95         7.19      854.00    61.36       59.51    -F83      6.39       0.09          0.92         1.02       0.08
                                      6/22/95                   117.60    61.56       39.97    , O@56, 10.12        0.14          0.70         0.91       0.07
                                      7/11/95         7.44      49.33     57.43       24.82    10.351    16.70      0.23          0.58         0.98       0.08
                                      7/19/95         7.38      1310.00   58.71       42.28    10.59     10.65      0.16          0.74         0.82       0.07
                                      8/14/95         7.26      542.00    58.86       15.67     0.22     11.15      0.16          0.38         1.15       0.09
                                      10/27/95        6.84      9.67      58.62       43.68     0.61     0.84       0.01          0.62         0.34       0.03
                                      1/30/96         7.08                            443.32    6.21     5.58       0.08          6.28         0.78       0.06
                                      2/22/96         7.02                            91.89     1.29     7.96       0.11          1.40         1.44       0.11
                                      3/13/96         7.18                            44.72     0.63     6.00    -0.08            0.71         1.04       0.08
                                      4/11/96         6.89                            32.09     0.45     3.12       0.04          0.49         0.27       0.02
                                      5/7/96          6.97                            22.64     0.32     2.66       0.04          0.36         0.21       0.02
                                      6/3/96          6.85                            12.14     0.17     6.76       0.09          0.26         0.35       0.03
                                      6/5/96          6.82                            17.36     0.24     6.65       0.09          0.34         0.37       0.03
                                      6/11/96         7.29                            31.29     0.44                                           0.68       0.05
                                      MEAN--          7.091                                    .0.92                0.10          1.06                    0.06

                                  SITE: SSW           (KDB DWOWN S        EAM)
                                       DATE           pH        TSS       IMM         N03      IN03 NH4             NI-14         DIN          P04        P04
                                      6/8/95
                                      6/19/95         7.75      21.20     17.92       60.62     0.85     41.16      0.58          1.42         5.60       0.44
                                      6/22/95                   4.00      60.00       75.77     1.06     5.77       0.08          1.14         5.69       0.45
                                      7/11/95         7.07      9.80      26.53       70.62     0.99     54.82      0.77          1.76         0.77       0.06
                                      7/19/95         7.54      15.63     19.20       67.91     0.95     8.20       0.11          1.07         2.25       0.18
                                      8/14/95         7.28      11.20     33.93       8.31     .0.12     10.81      0.15          0.27         0.53       0.04
                                      10/27/95        7.61      12.50     15.00       116.6211.63        3.48       0.05          1.68         1.42       0.11
                                      1/30/96         7.22                            161.01    2.25     9.56       0.13          2.39         2.56       0.20
                                      2/29/96         7.09                            107.68    1.51     5.15       0.07          1.58         3.40       0.27
                                      3/13/96         7.34                            182.50    2.56     8.75       0.12          2.68         3.82       0.30
                                      5/30/96         7.31-                           131.42    1.84     4.15       0.06          1.90         2.28       0.18
                                      6/5/96          7.25                            60.54     0.71     10.69      0.15-         0.86         2.43       0.19
                                      6/11/96         8.04                            89.93     1.26                                           2.04       0.16
                                      MEAN=           7.40                                      1@311               0.21          1.52                    0.22


                                  SITE: SSW           (KDB UP STRE        M)
                                       DATE           PH        TSS       0160RG      N03       N03      NI-14      NI-14         DIN          P04        P04
                                      6/8/95
                                      6/19/95         7.92      6.20      38.71       86.26     1.21     5.00       0.07          1.28         0.62       0.05
                                      6/22/95                   36.20     38.12       80.99     1.13     7.79       0.11          1.24         5.57       0.44
                                      7/11/95         7.30      8.00      30.00       122.73.   1.72     8.06       0.11          1.83         0.85       0.07
                                      7/19/95         7.73      17.63     36.17       66.96 10.94        27.11      0.38          1.32         2.88       0.23
                                      8/14/95         7.35      10.20     35.29       6.25 10.09         8.51       0.12          0.21         0.53       0.04
                                      10/27/95        7.50      1.00      37.50       111.1811,56        3.81       0.05          1.61         1.56       0.12
                                      1/30/96         7.17                            156.6712.19        8.00       0.11          2.31         2.83       0.22
                                      2/29/96         7.12                            166.3612.33        6.09       0.09          2.41         3.75       0.30
                                      3/13/96-        7.33                            402.40    5.63     7.33       0.10          5.74         4.65       0.37
                                      5/30/96         7.54                            104.43    1.4      4.6        0.06          1.53         2.22       0.18
                                      6/5/96                                          107.75    1.61     5.65       0.08          1.59         2 78       022
                                      6/11/96         8.601                           104.34    1.46                                           @@O        O@21
                                                      7.521                                     1.77                0.12          1.91                    0.20












                                      SITE: SSW 10 ( EN         OF FOREST RIV
                                          DATE           PH        TSS     I -/.ORG   I N03               --@-H4 --R-H4          -DIN            P04         P04
                                      -6/8/95
                                          6/19/95       7.67       1.20      33.33       125.25    1.75     4.79       0.07          1.82        1.47        0.12
                                          2 2 -/9 5                0.80      50.00       84.70     1.19     4.85       0.07          1.25        0.58        0.05
                                      -7/11/95          7.55       1.10      72.73       108.52    1.52     6.79       0.10          1.61        1.44        0.11
                                      -7/19/95          7.40       0.80      37..50      111.88    1.57     9.67       0.14          1.70        0.29        0.02
                                      -8/14/95          7.76       0.50      80.00       215.80    3.02     2.56       0.04          3.06        0.27        0.02
                                          10/27/95      7.56       0.50      50.00       197.81    2.77     8.46       0.12          2.89        0.23        0.02
                                          1/30/96       7.01                             80.33     1.12     26.96      0.38          1.50        0.10        0.01
                                          3/13/96       7.24                             162.92    2.28     26.32      0.37          2.65        0.47        0.04
                                      -6/5/96           7.24                             105.63    1.48     11.08      0.16          1.63        0.22        0.02
                                          6/11/96       7.40                             128-56,   1.80                                          0.41        0.03
                                          MEAN--        7.43                                       1.85                0.16          2.01                    0.04


                                      SITE: SSW I       (FOREST DRIVE POND)
                                          DATE           pH        TSS       '/.<M       N03       N03      NH4        NI-14         DIN         P04         P04
                                      -6/8/95
                                      -6/19/95          7.56       0.80      75.00       11.95     0.17     8.43       0.12          0.29        0.17        0.01
                                          6/22/95                  1.80      77.78       17.33     0.24     6.86       0.10          0.34        0.37        0.03
                                      -7/11/95          7.17       1.60      75.00       4.75      0.07     7.42       0.10          0.17        0.18        0.01
                                      -7/19/95          7.04       1.90      47.37       3.82      0.05     24.67      0.35          0.40        0.09        0.01
                                      -8/14/95          7.78       4.40      77.27       3.34      0.05     8.85       0.12          0.17        0.03        0.00
                                          10/27/95      7.00       1.13      77.78       10.16     0.14     9.24       0.13          0.27        0.21        0.02
                                      -1/30/96          6.86                             112.881   1.58     8.71       0.12          1.70        0.00        0.00
                                      -3/13/96          7.10                             105.281   1.47     6.79       0.10          1.67        0.16        0.01
                                          6/5/96        7,17                             53.47     0.75     3.81       0.05          0.80        0.06        0.00
                                          6/11/96       7J8                              45.21     0.63                                          0.10        0.01
                                          MEAN=         7.21                                       0.52                0.13          0.63                    0.01


                                      SITE: SSW        2 ( R    I CULVERT)__
                                          DATE           PH        TSS       Q/v0RG N03            N03      NI-14      NH4           DIN         P04         P04
                                      -6/8/95
                                      -6/19/95          9.15       1.40      71.43       92.07     1.29     4.75       0.07          1.36        0.32        0.03
                                          6/22/95                  1.00      80.00       89.80     1.26     2.14       0.03          1.29        0.35        0.03
                                      -7/11/95          7.37       1.20      83.33       46.98     0.66     15.98      0.22          0.88        2.21        0.17
                                      -7/19/95          7.37       1.10      63.64       39.92     0.56     19.54,     0.27          0.83        0.07        0.01
                                      -8/14/95          9.74       1.30      46.15       96.87     1.36     3.17   1   0.04          1.40        0.07        0.01
                                          10/27/95      7.18       0.87      57.14       39.17     0.55     5.18       0.07          0.62        0.18        0.01
                                      -1/30/96          6.88                             123.46    1.73     7.62       0.11          1.84        0.00        0.00
                                          3/13/96       7.17                             100.96    1.41     18.45      0.26          1.67        0.201       0.02
                                      -6/5/96           7.11                    -        59.51     0.83     3.88       0.05          0.89        0.065       0.01
                                          6/11/96       9.11                             78.4      1.10                                          0.22        0.02
                                          MEAN=         7.90                                       1.07                0.13          1.20                    0.03


                                      SITE: SSW       3 (PUBLIC DOCK/BEACH'
                                          DATE           PH        TSS       -/6,ORG     N03       N03      NI-14      NHAI          DIN         P04         P04
                                      -8/14/95          8.22       2.90      24.14       1.60      0.02     1.37       0.02          0.04        0.29        0.02
                                          8/23/96                  3.00      30.00       0.60      0.01     3.03       0.04          0.05        0.29        0.02
                                      -1/30/96          7.92                             10.23 0.14         3.07       0.04          0.19        0.53        0.04
                                          3/13/96       7.97                             11.47     0*  16   1.40       0.02          0.18        0.54        0.0
                                          6/5/96         . 4                             2.61      0.04     58.89      0.82          0.86        0.34        0.03
                                          6/11/96       7.84                             2.31      0.03     0.00       0.00          0.03        0. 70 Ifo -    06
                                          MEAN=       1 7.941              1                       0.07                0.16          0.23                    0.04












                           SITE: SSW I   (END OF RIVER STREET)
                              DATE        pH      TSS     %0@      N03     N03    NI-14    NH4       DIN       P04      P04
                              8/14/95    8.23     7.60    17.11    0.59    0.01   3.66     0.05      0.06      0.22     0.02
                              8/23/95             4.00    27.50    2.02    0.03   2.17     0.03      0.06      0.34     0.03
                              1/30/96    7.65                      15.30   0.21                                0.28     0.02
                              3/13/96    7.89                      6.85    0.10   4.96     0.07      0.17      0.41     0.03
                              6/5/96     7.53                      3.19    0.04   22.18    0.31      0.36      0.13     0.01
                              6/11196    7.69                      1.62    0.02   0.76     0.01      0.03      0.30     0.02
                              MEAN--     7.80                              0.07            0.09      0.13               0.02


                           SITE: SSW 15 (HAMPTON/SEABROOK          RIDGE)
                              DATE        PH      TSS     -Y60AG   N03     N03    NI-14    NH4       DIN       P04      P04
                              8/14/95    8.20.    15.30   14.38    3.34    0.05   8.32     0.12      0.16      0.27     0.02
                              8/23/95             2.90    31.03    0.52    0.01   3.26     0.05      0.05      0.22     0.02
                              1/30/96    7.64                      12.13   0.17                                0.36     0.03
                              3/13/96    8.05                      7.54    0.11   3.64     0.06      0.16      0.40     0.03
                              6/5/96     7.66                      13.85   0.19   0.85     0.01      0.21      0.14     0.01
                              6/11/96    7.85                      5.53    0.08   5.14     0.07      0.15    -0.29      0.02
                              MEAN=      7.881                             0.10            0.06      0.15         -     0.02

                           SITE: SSW I   (HAMPTON UNSEWERED/MOUTH OF H            BOR)
                               DATE       PH      TSS     %01@     N03   I N03    NI-14    NH4       DIN       P04      P04
                              8/23/95             6.90    11.59    6.13    0.09   13.86    0.19      0.28      1.12     0.09
                              1130/96    7.90                      12.68   0.18                      0.18
                              3/13/96    8.13                      2.35    0.03   1.46     0.02      0.05      0.53     0.04
                              6/5/96     8.04                      1.52    0.02   9.98     0.14      0.16      0.63     0.05
                              6/11/96    8.39                      8.12    0.11   4.16     0.06      0.17      0.29     0.02
                           1 MEAN=     1 8.121          1                  0.091           0.10      0.17               0.05










                                                                             TABLE 12
                                  SEABROOK SURFACE WATER: MICROBIOLOGICAL DATABASE
                                  -BACTERIAL COUNTS: CFU/100mIs
                                  -SALINITY: ppt
                                  TEMP: degrees C
                                                 t
                                  SITE: SSW I (REH DOWN STREAM)
                                      DATE        SALINITY          TEMP.           FO           E. c         Ent          C. perf.
                                     6/8/95          29.70          16.00         45.50          44.50        44.50        8.00
                                     6/19/95         27.00          29.50         61.50          61.50        103.50       18.25
                                     6/22/95         29.00          25.00         47.00          43.00        27.00        4.00
                                     7/11/95         30.00          16.50         20.00          20.00        114.00       4.75
                                     7/19/95         30.00                        34.00          22.00        35.00        4.25
                                     8/14/95         31.00          22.00         13.50          13.50        40.25        1.75
                                     10/5/95         24.00                        105.00         20.00        33.00        4.00
                                     1/30/96         16.00          4.30          3.00           1.50         6.00         0.24
                                     3/13/96         26.00          6.20          22.50          18.00        1.50         5.00
                                     5/23/96         22.00          21.20         132.00         129.00       7.33         0.24
                                     6/5/96          17.00          17.30         72.50          62.50        132.50       2.00
                                     6/11/96         26.00          28.00         10.00          10.00        10.00        0.24
                                         MEAN=l      25.64      GEOMEAN=          31.10          23.64        24.93        2.18

                                  SITE:  SSW 2 (REH UP STREAM)
                                      DATE         SALINITY         TEMP.           FO           E. c         Ent          C. perf.
                                     6/8/95          29.70          16.00         34.00          34.00        48.50        6.50
                                     6/19/95         28.00          23.40         390.00         370.00       247.50       2.50
                                     6/22/95         28.00          21.00         305.00         290.00       38.75        9.50
                                     7/11/95         28.00          15.90         35.00          35.00        92.00        10.75
                                     7/19/95         30.00                        24.00          12.00        31.00        6.50
                                     8/14/95         31.00          22.00         30.00          30.00        66.25        1.75
                                     10/5/95         24.00                        35.00          20.00        26.00        3.75
                                     10/27/95        26.20          10.80         26.00          24.00        6.50         0.24
                                     1/30/96         20.00          4.30          4.00           3.00         5.25         9.50
                                     3/13/96         27.00          4.00          0.24           0.24         0.25         2.50
                                     5/23/96         21.00          17.50         41.50          36.00        15.00        7.50
                                     6/5/96          25.00          16.50         39.50          36.00        46.00        4.50
                                     6/11/96         26.00          24.00         1.00           1.00         2.00         0.25
                                         MEAN=       26.45      GEOMEAN=i         20.85          17.98        18.36        3.18

                                  SITE: SSW3 (CAUSEWAY STREET B DG
                                      DATE         SALINITY         TEMP.           Fr,          E. c         Ent          C. perf.
                                     6/8/95          1.00           18.00         535.00         465.00       206.50       25.00
                                     6/19/95         0.00           23.80         800.00         490.00       43.75        17.50
                                     6/22/95         5.00           21.00         605.00         340.00       36.00        6.00
                                     7/11/95     ,   15.00          19.00         2700.00        180090000    230.00       7.50
                                     7/19/95         3.00                         1100.00        650.00       252.50       17.00
                                     8/14/95         30.00          23.00         170.00         170.00       33.00        0.25
                                     10/27/95        2.50           11.20         480.00         415.00       69.00        7.00
                                     1/30/96         18.00          2.30          85.00          55.00        41.00        85.00
                                     3/13/96         0.00           2.20          26.00          19.00        2.00         5.00
                                     3/28/96         0.00           5.70          15.00          14.00        2.50         80.00
                                     4/11/96         0.00           6.00          53.00          32.00        50.00        57.00
                                     5/7/96          0.00           11.10         140.00         112.00       43.00        81.00
                                     5/9/96          0.00           14.00         117.00         105.00       32.00        185.00
                                     6/5/96          0.00           18.00         -870.00        750.00       85.00        2?4 @715
                                                                                                                           6
                                     6/11/96         0.00           25.00         210.00         200.00       109.00       6.00
                                     MEAN=           4.97     1 GEOMEAN=l         233.29   1     177.08       44.67        16.86











                                SITE: SSW 4 (TIDAL CREEK BEHIND HUBERT)
                                     DATE        SALINITY         TEMP.           Fo           E. c         Ent          C. perf.
                                     6/8/95         0.00          17.50          460.00        397.50       168.00       2.50
                                     6/19/95        0.00          28.10          830.00        407.50       151.20       6.75
                                -6/22/95            2.00          20.50          670.00        340.00       101.25       8.00
                                -7/11/95            8.00          19.20          4400.00       2200.00      170.00       18.00
                                -7/19/95            0.00                         1100.00       600.00       220.00       129.00
                                     8/14/95        29.00         23.50          240.00        240.00       218.00       0.75
                                -10/27/95           0.00          11.30          400.00        325.00       102.50       11.50
                                -1/30/96            0.00          1.90           73.00         38.00        107.50       80.00
                                -3/13/96            0.00          2.50           50.00         49.00        1.00         11.00
                                -3/28/96            0.00          8.00           24.00         20.00        2.00         66.00
                                -4/11/96            0.00                         39.00         32.00        32.00        61.00
                                     5/9/96         0.00          14.00          135.00        120.00       48.00        168.00
                                     6/5/96         0.00          18.10          740.00        670.00       123.25       18.25
                                -6/11/96            0.00          2 .00          200.00        195.00       25.00        35.00
                                     MEAN=          2.79      GEOMEAN=           264.29        193.87       54.77        19.34


                                SITE: SSW       (CSL DOWN STREAM)
                                     DATE        SALINITY         TEMP.           Fr,          E. c         Ent          C. perf.
                                     6/8/95         0.00          18.00          134.50        126.50       60.00        33.50
                                -6119/95            0.00          25.00          545.00        460.00       144.00       83.50
                                -6/22/95            0.00          23.70          795.00        785.00       95.00        46.00
                                -7/11/95            6.00          18.50          3100-00       2300.00      660.00       37.50
                                -7/19/95            2.00                         950.00        850.00       950.00       20.00
                                -    8/14/95        25.00         24.00          300.00        300.00       208.00       0.24
                                -10/27/95           0.80          11.00          270.00        210.00       5.00         1.50
                                -1/30/96            0.00                         175.00        90.00        18.00        26.00
                                -3/13/96            0.00          2.50           70.00         42.50        8.00         28.50
                                -4/11/96            0.00          7.20           50.00         50.00        1.00         35.00
                                     5/7/96         0.00          13.80          35.00         23.00        26.00        12.00
                                     6/3/96         0.00          16.70          205.00        195.00       40.50        16.00
                                     6/5/96         0.00          17.00          337.50        327.50       49.50        10.00
                                -6/11/96            0.00          23.00          2035.00       2015.00      900.00
                                     MEAN=          2.41      GEOMEAW-           297.21        247.22       56.77        14.86


                                SITE: SSW 6 (RT. 286 8 OWN'S BRI                 GE)
                                     DATE        SALINITY         TEMP.           FC           E. c         Ent          C. perf.
                                     6/8/95         26.00         14.00          26.50         24.00        15.00        4.00
                                -6/19/95            28.00         21.00          62.00         42.50        13.50        2.25
                                -6/22/95            28.00         18.90          9.00          9.00         9.25         3.75
                                -7/11/95            29.00         13.00          75.00         70.00        19.75        2.25
                                     7/19/95        26.00                        67.50         57.50        32.75        1.25
                                -8/14/95            31.00         18.00          6.00          6.00         11.75        1.75
                                -10/27/95           23.90         10.80          19.25         18.00        41.00        2.25
                                -1/30/96            2.00          0.10           135.00        91.50        125.00       39.50
                                     3/13/96        22.00         2.00           5.00          2.50         0.24         8.00
                                     6/5/96         24.00         17.20          63.00         61.00        63.25        1.25
                                     6/11/96        21.50         21.40          25.00         25.00        10.00        1.75
                                     - MEAN=l 23.76            GEOMEAN= 28.26 1 23.81                       15.34        3.10












                                   SITE: SSW 7 (CSL UP STREAM)
                                       DATE         SALINITY         TEMP.            Fr,          E. c          Ent          C. perl.
                                      6/8/95           0.00          15.50          255.00         230.00        136.50       44.50
                                      6/19/95          0.00          18.50          400.00         340.00        430.00       410.00
                                      6/22/95          0.00          14.50          380.00         370.00        468.75       140.00
                                      7/11/95          0.00          16.00          4500.00        4200.00       4600.00      400.00
                                      7/19/95          0.00                         9700.00        2600.00       10500.00     142.50
                                      8/14/95          1.00          19.90          7375.00        3875.00       1070.00      800.00
                                      10/27/95         0.20          11.20          125.00         75.00         5.00         55.00
                                      1/30/96          0.00                         400.00         225.00        24.00        42.00
                                      2/22/96          0.00                         3480.00        970.00        237.00       383.00
                                      3/13/96          0.00          2.50           230.00         215.00        8.00         33.00
                                      4/11/96          0.00          6.50           310.00         155.00        6.00         39.00
                                      5/7/96           0.00          11.50          32.00          24.00         13.50        3.50
                                      6/3/96           0.00          13.80          104.00         82.00         42.50        53.50
                                      6/5/96           0.00          14.50          445.00         445.00        89.50        16.00
                                      6/11/96          0.00          22.90          3615.00        2872.00       1175.00
                                          MEAN=l       0.            OMEAN--        623.11         412.11        137.38       79.42

                                  SITE: SSW 8 (KDB DO N STREAM)
                                       DATE         SALINITY         TEMP.            F;C          E. c          Ent          C. perf.
                                      6/8/95           0.00          20.50          365.00         330.00        233.00       8.00
                                      6119/95          0.00          27.30          120.00         110.00        496.25       7.75
                                      6/22/95          1.00          26.00          10.00          10.00         3040.00      16.00
                                      7/11/95          11.00         18.50          1600.00        1600.00       2050.00      50.00
                                      7/19/95          2.00                         1750.00        1750.00       850.00       70.00
                                      8/14/95          24.00         25.52          375.00         375.00        800.00       5.00
                                      10/19/95                       14.50          106.00         50.00         540.00       5.00
                                      10/27/95         2.00          11.20          125.00         120.00        190.00       3.25
                                      1/30/96          0.00                            8           5.75          26.5         14.5
                                      2/29/96          0.00                           1.5          1.5           5.5          2.5
                                      3/13/96          0.00          4.50           0.24           0.24          3.00         7.50
                                      5/30/96          0.00                         279.00         272.00        53.75        7.50
                                      6/5/96           2.00                         580.00         580.00        137.25       4.50
                                      6/11/96          0.00          27.00          60.00          60.00         478.00       13.75
                                          MF-AN=l      3.23     IGEOMEAN=           74.76          67.96         189.59       9.29

                                  SITE: SSW        (KDB UP STREAM)
                                       DATE         SALINITY         TEMP.            FC           E. c          Ent          C. perf.
                                      6/8/95           0.00          20.50          285.00         240.00        197.50       6.00
                                      6/19/95          0.00          26.80          205.00         155.00        605.00       12.75
                                      6/22/95          0.00          25.30                                       470.00       4.75
                                      7/11/95          2.00          18.30          4300.00        4100.00       19.85        140.00
                                      7/19/95          0.00                         5250.00        5125.00       1250.00      100.00
                                      8/14/95          26.00         26.50          95.00          95.00         1795.00      0.50
                                      10/19/95                       14.90          103.50         70.50         460.00       1.50
                                      10127/95         2.00          11.20          132.50         125.00        120.00       1.25
                                      1130/96          0.00                         8.00           8.00          26.50        13.00
                                      2/29/96          0.00                         3.00           2.50          2.00         2.00
                                      3/13/96          0.00          5.80           3.50           1.00          9.00         15.50
                                      5/30/96          0.00                         239.00         233.00        272.00       8.50
                                      6/5/96           0.00                         460.00         455.00        129.00       5.75
                                      6/11/96      1   0.00          26.00          20.00          20.00         557.00       10.25
                                 1        MEAN=l       2.31    IGEOMEAN=            109.29   1     90.61         141.48       7.18











                                 SITE: SSW 1 (END OF FOREST DRI                   E)
                                     DATE         SALINITY         TEMP.           FO           E. c          Ent          C. perf.
                                 -6/19/95            0.00          16.50          287.50        147.50       103.75        8.00
                                    6/22/95          0.00          15.00          95.00         72.50        77.00         2.00
                                 -7/11/95            0.00          15.50          800.00        746.60       462.00        15.75
                                 -7/19/95            0.00                         3250.00       700.00       625.00        24.00
                                 -8/14/95            1.00          19.00          1975.00       1545.00      312.00        0.75
                                 -10/27/95           0.20          10.90          90.00         65.00        25.00         4.25
                                 -1/30/96            0.00                         95.00         0.24         13.00         8.00
                                 -3/13/96            0.00          5.00           32.50         25.00        29.50         7.75
                                    6/5/96           0.00                         444.00        376.00       19.75         4.00
                                    6/11196          0.00          18.00          125.00        90.00        40.50         0.24
                                       MEAN=j        0. 12    1 GEOMEAN=l         271.33        101.32       74.85         4.04
                                                1             1               1
                                 SITE: SSWI (FOREST DRIVE POND
                                     DATE         SALINITY         TEMP.           FO           E. c          Ent          C. perf.
                                    6/8/95           0.00          19.50          184.50        176.50       87.00         14.50
                                 -6/19/95            0.00          25.40          66.25         52.50        35.00         1.75
                                 -6/22/95            0.00          22.50          42.00         42.00        4.00          1.50
                                    7/11/95          0.00          22.00          16.00         16.00        39.00         3.25
                                 -7/19/95            0.00                         60.00         60.00        46.25         4.25
                                 -8/14/95            1.00          26.00          70.00         65.00        22.75         3.00
                                 -10/27/95           0.40          10.00          17.50         17.50        10.50         1.75
                                 -1/30/96            0.00                         10.00         8.50         6.75          8.00
                                    3/13/96          0.00          0.50           2.50          1.00         5.00          4.75
                                    6/5/96           0.00                         165.00        160.00       57.00         4.00
                                    6/11/96          0.00          22.00          60.00         60.00        6.50          0.24
                                       MEAN=         0.13       GEOMEAN=          36.42         31.89        18.03         2.85


                                 SITE: SSW 12        RT. I CULVERT))
                                     DATE         SALINITY         TEMP.           FC           E. c          Ent          C. perf.
                                    6/8/95           0.00          23.00          255.00        232.50       198.00        29.00
                                 -6/19/95            0.00          28.10          252.50        202.50       46.25         7.75
                                    6/22/95          0.00          25.90          52.50         50.00        19.00         13.50
                                 -7/11/95            0.00          19.00          120.00        120.00       195.50        13.25
                                 -7/19/95            0.00                         160.00        90.00        130.00        1.50
                                    8/14/95          0.00          27.50          45.00         30.00        11.00         6.75
                                    10/27/95         0.60          11.00          32.00         31.00        10.50         12.75
                                 -1130/96            0.00                         28.25         21.00__
                                 -3/13/96            0.00          2.00           2.00          2.00         2.40          20.00
                                    6/5/96           0.00                         300.00        285.00       44.75         5.50
                                    6/11/96          0.00          25.10          155.00        155.00       20.00         5.50
                                       MEAN=         0.05       GEOMEAN=j         71.39         61.04        31.92         8.91

                                 SITE: SSW 13/HH18 (PUBLIC DOCK/BEACH)
                                     DATE         SALINITY         TEMP.           R3,          E. c          Ent          C. perf.
                                    8/14/95          30.00         17.00          12.50         10.25        16.00         4.75
                                    8/23/95          30.00                        19.00         17.25        10.50         8.25
                                 -10/27/95           27.20         11.00          30.00         23.00
                                 -10/31/95           28.00                        30.00         27.00
                                 -1/30/96            23.00         2.40           25.00         17.75        10.25         66.00
                                    3/13/96          23.00         6.00           340.00        340.00       3.00          15.00
                                    6/5/96           22.00         14.10          57.00         48.00        24.50         6.50
                                    6/11/96                        16.00                                                   40.00
                                       MEAN=         26.17       G0f'll20AKL-     12
                                                                                                                           14.70











                                              SITE: SSW I HH2B (END OF RIVER STREET)
                                                    DATE             SALINITY                TEMP.              FO                E. c              Ent              C. perf.
                                                  8/14/95              31.00                 19.00             35.00             35.00              10.25            8.50
                                                  8/23/95              30.00                                   14.00             12.00              1.25             1.75
                                                  10/27/95             27.20                 10.00             69.50             55.50
                                                  10/31/95             25.00                                   44.50             44.00
                                                  1/30/96              12.00                 0.40              50.00             37.50              107.50           105.00
                                                  3/13/96              26.00                 4.50              2.00              2.00               0.90             5.00
                                                  6/5/96               26.00                 15.30             51.75             47.75              34.50,           2.50
                                                  6/11/96                                    19.50             5.00              5.00               2.25             2.00
                                                                       25.31         IGEOMEAN=                 21.09             19.19              6.77             5.82
                                                                                     I       -
                                              SITE: SSW 15/HH17 (HA PTON/SEABROOK BRIDGE)
                                                    DATE             SALINITY                TEMP.              Fr,               E. c              Ent              C. perf.
                                                  8/14/95              30.00                 17.00           720.00            720.00               14.25            0.50
                                                  8/23/95              30.00                                   2.75              2.50               0.75             2.25
                                                  10/27/95             27.10                 10.10             46.50             38.50
                                                  10/31/95             31.00                                   25.50             23.50
                                                  1/30/96              16.00                 1.60              30.00             25.00              64.50            85.00
                                                  3/13/96              25.00                 3.70              2.00              2.00               0.40             2.50
                                                  6/5/96                 25                  15                41.75             37.5               19.75            5.00
                                                  6/11/96                                    18                  6                 6                1.25             4.00
                                                      MEAN=            26.30           GEOMEAN=l               20.82       1     19.18        1     4.35             4.10
                                              ........................               .. ..................I..................L ............. -.-J ....... --,= ....................
                                              SITE: SSW 16 (HAMPTO UNSEWERED/MOUTH OF HARBOR)


                                                  8/23/95              30.00                                   50.00             50.00              15.00            2.00
                                                  1/30/96                16                  5.4                 7                 7                 2                  1
                                                  3/13/96                27                  9.2               0.24              0.24               0.24             0.24
                                                  6/5/96                 24                                     1.5                1.5               2               0.24
                                                  6/11/96                                    27                0.24              0.24               3.75             0.25
                                              1       MEAN=l 24.25 1 GEOMEAN=l                                 1.98              1.98               2.22             0.49
                                              @6 @1/96
                                              SIT   /'  SSW
                                                    E-          15










                                                           TABLE 13
                   MICROBIOLOGICAL ANALYSIS OF SOIL CORES TAKEN BENEATH EDA's


                   SITE: WRH (8/7/95)                                              SITE: KDBS (10/19/95)
                    DEPTH (bgs)                                                     DEPTH (bgs)
                                       fecal coliforms            0                                   fecal coliforms            800
                         31.5"              E. coli               0                      299@               E. coli              800
                                       C. perfringens           9000                                  C. perfringens           13000


                                       fecal coliforms            0                                   fecal coliforms             0
                          46's              E. coli               0                      42"                E. coli               0
                                       C. perfringens           5000                                  C. perfringens           13000


                                       fecal coliforms            0                                   fecal coliforms            20
                          5501              E. coli               0                      5599               E. coli              20
                                       C. perfringens          17000                                  C. perfringens           17000



                   SITE: FDC (8/8/95)                                              SITE: KDBS         (10/19/95)
                    DEPTH (bgs)                                                    DEPTH (bgs)
                                       fecal coliforms            0                                   fecal coliforms             0
                          260#              E. coli               0                      339@               E. coli               0
                                       C. perfringens           1100                                  C. perfringens           50000


                                       fecal coliforms            0                                   fecal coliforms             0
                          3811              E. coli               0                      44#@               E. coli               0
                                       C. perfringens           7000                                  C. perfringens           9000


                                       fecal coliforms            0                                   fecal coliforms            20
                          47#1              E. coli               0                      5999               E. coli              20
                                       C. perfringens             0                                   C. perfringens           2200


                                       fecal coliforms            0
                         51.51*             E. coli               0
                                       C. perfringens           6000



                   SITE: CSL (8/7/95)
                    DEPTH (bgs)
                                       fecal coliforms          400
                          359@              E. coli             400
                                       C. perfringens           7000


                                       fecal coliforms            0
                          43@@              E. coli               0
                                       C. perfringens             5







                                                             TABLE 141
                      Bacterial Concentrations and Watertable Depth be ow EDA at WRH, CSL, KDBM, and KDBS
               CSL4           <36               2/23/95           1              1              0.49           0.24
               CSL4           <36               3/30/95           0.24          0.24            0.5            0.5
               CSL4           <36               4/25/95           0.24          0.24            0.24           22
               CSL4           <36               5/11/95           0.25          0.25            0.24           0.24
               CSL4           <36               6/5/95            0.24          0.24            0.24            2
               CSL4           <36               6/26/95           53.25         48.5            0.24           2.25
               CSL4           <36               10/26/95        -0.24           0.24            0.24           0.24
               CSL4           <36               2/22/96           10             6              49.5           7.75
               CSL4           <36               4/11/96           0.25          0.25            0.24           0.25
               CSL4           <36               5/7/96            0.25          0.25     1      0.5            0.24
               CSI-4          <36               6/3/96            0.24          0.24            0.25           0.5
               WRI-11         <36               11/18/95          60            22
               WRI-11         <36               2/8/96            58
               WRH1           <36               3/28/96           432           424
               WRH1           <36               5/9/96            40            20              400            4.9
               WRH2           <36               4/6/95            67.25         51              23             0.49
               WRF12          <36               11/18/95          6.5
               WRH2           <36               2/8/96            0.24          0.24            0.25           3.5
               WRH2           <36               3/28/96           0.24          0.24            0.24            3
               WRH2           <36               5/9/96            0.24          0.24            0.24            1
               WRF15          <36               3/2/95            35.5         29.25            12             0.24
               WRF15          <36               4/6/95            16.25         6.25            2.75           0.24
               WRF15          <36               4/25/95           2.75          2.25            3              0.24
               WRF15          <36               11/18/95          2130          500             8100           0.24
               WRFIS          <36               2/8/96            400           250             64             1.9
               WRFiS          <36               3/28/96           300           280             232            1.9
               WRH5           <36               5/9/96            120           30              19             0.5
               KDBM3          <36               2/29/96           1.5           0.24            0.49           0.5
               KDBM3          Z!36but<48        3/7/95            75            71.5            0.24           0.24
               KDBM3          @,36but<48        3/23/95           1.5           1.5             0.24           0.25
               KDBM3          Z!36but<48        4/4/95            0.24          0.24            0.24           0.5
               KDBM3          @!36but<48        5/2/95            0.24          0.24            0.24           0.75
               KDBM3          ZtUbut<48         5/22/95           0.24          0.24            0.24           0.24
               KDBM3          ZL36but<48        4/4/96            0.49          0.49                           51
               KDBM3          Z!36but<48        5/30/96           0.24          0.24            0.24           3.25
               KDBS4          Z!36but<48        3/7/95            0.24          0.24            0.24           0.24
               KDBS4          ZtHbut<48         3/23/95           0.24          0.24            0.24           0.24
               KDBS4          Z!36but<48        2/29/96           0.49          0.49
               KDBS4          @!36but<48        4/4/96            0.49          0.49
               KDBS4          @t4S              4/4/95            0.24          0.24            0.24           0.24
               KDBS4          Zt48              5/30/96           0.49          0.49            0.09           0.49


                                                - <36             5.28          3.36            2.52           0.83
                                  GEOMEAN @!36but<48              0.58          0.58            0.24           0.72
                                                  Z!48     1      0.34    1     0.34            0.15           0.34
                                                p-value           0.049         N/S             N/S            N/S




                            Figure 1. Seabrook and Hampton Harbor with study sites circled, labeled with 2-3 CAPIT



                                                                                    e



                                                                                 f
                                                                                             IAAI



                                                                                                                                                                  t S--


                                                                                   >
                                          J,

                                                                   I railet
                                 j
                                 :C
                                                                                               [)It 0S
                                                                          f                                                                  "IZ


                                                                                             Wa er
                                                                                             1,
                                            0.
                                                   TM
                                          n
                                                                                                                           m
                                                                                                                                               Wall

               A'
                                                       eabrook
               A'
                                                                                                            Pflr
                                                                                                                                                                           N.,
                                                                   Sv       )I.  ir
                                                                                                                                              of
                                                                                       11 f
                                                                                                                          r 11
                                                               E     A       RP    V   V:0 F@                                                                                     pporr, fi-
                                   I lild:                                                                           I   ---ist toil                                     ..........
                                                                                                                                                                                  Ick
                                                                                                       KDB
                                                                                                                                                                 4ill,-
                                                                                                                          7111111
                                                                 . .....             Sevoltirrol   Stalihii
                                                                                                                -p,                         V jillorl
                                                                                                                                               n in('
                                                                                                                                                                                          R
                                                                                                                     CS



                                                                                           %
                                                                                         )\ T.,                                  ,  -    I
                                                                                                                                                                       U1
                                                                                                                              H'
                                                                                                                         WK
                                                                                                                                                            S-
                                                                  C                          c- -:l
                                                                                                                                                         mo:
             f                                                                                             F'
                                              R)Cnm,
                                                                                                                                       P                      -.v            W)




                                                                                                       onilm              Glavil
                                         16                                                                                                                                        6-
       0.1f;                            3n            !;A$ V;Iilllll@ ftl,@Y; .1 Alit '14 il                        :149                                  0
                                                                                                                                                                   501
                     SCALE 1:25 000                                        5110                                                  111011                               2 non
   1411ril 11 It ON 1111: IkIAV 111.111IFSMIS 2511 MMUS ON TIIE- 6.1101IND
                                                                                                                    Mill                                       Null)                 Min






         [AREA - 50.000 _SOF@.]      Figure 2. Location of groundwater wells at site REH.


           FKI-EST CBS. TM
        13TTLANO L241U


















































                                                                                   4-




   LEGEND:                 SCALE III            60t

   PROPERTY BOUNDARY (APPROX)
   STRUCTURE                                                      OWNER: EASTMAN, C.
                                                                  MAP# 23 LOT# AS-]
   1"LUMT DISPOSAL AREA (fDA)                                     ADDRESS: ASA RIVER ST.
   WETLAND EDGE                                                         OCTOBER, 199A
                                                              ELKIND ENVIRONMENTAL ASSOC6,TES, INC-
   NOTE: BOUNDARIES AND
   OTHER DETAILS DEPICTED                                                      6 "TUX&DOW OIL
   ON THS PLAN ARE ONLY                                                        PIAAIIVA@ KZW HAMPSKIRS 43"S
   APPROXIMATE AND CARE                                        EEA
   SHOULD BE EXERCIZZD IN
 ITHEIR USE1                                                    04CvAnmqC       POtMrrrV4G   CONStATWC







                     Figure 3. Location of groundwater weRs at site RP.


                           AREA = 12,000 SQ.FT.        +







                                    7
                                   To-



                                           4     13



                                                                  7
                                5           4                    9.65





                                                           8.04


                                                                  7.86


                                                                              Hr4EST CGS ;DE
                                                                              OYALL     ,(67






   LEGEND:

   PROPERTY BOUNDARY (APPROX.1


   STRUCTURE


   EFFLUENT DISPOSAL-AREA (EDA)
   WETLAND EDGE                                             OWNER: PIKE, R. & V. RAWNSLEY
                                                            MAP# 23 LOT# 15
                                                            ADDRESS: 15 RIVER ST.
                         SCALE 1tv            30'
                                                                           OTOSER P94


                                                             ELKIND ENVIRONMENTAL ASSOCIATES, INC.
                                                                        /
                                                                              17
                                                                              10"


































 NOTE: BOUNDARIES AND
 OTHER DETAILS DEPICTED                                                        6 BATMEADOW OIL
 ON THE PLAN ARE ONLY                                                          NASHUA. NZW HAMPSHIRE 03"3
 APPROXIMATE AND CARE                                         EEA
 SHOULD BE EXERCIZED IN
 THEIR USEt                                                    ENCINIERINC      PtltmffTINC  CONSULnmc








                                Figure 4. Location of groundwater wells at site WRH.

                                                                                                                      /0


          LOT AREA          18-000








                                                      A)

                                                                         \HIGHEST 08S TIDE
                                                                                          (VEGETATION)






                                             96. 5
                            "W7                                          STONC WALL\





                                                                              LEGEND:

                                                                              PROPERTY BOUNDARY (APPROX.)


                                                                              3TRUCTURE

       <1                                                                     EFFLUENT DISPOSAL AREA (EDAJ

                                                                              WETLAND 8)GE



                                                                            OWNER: HUBERT, J. & A.
                                                                            MAP# 13 LOT# A6C
                                                                            ADDRESS: 279 WALTON RD.
                                                                                OCTOBER, 199A
   NOTE: BOUNDARIES AND                                                  ELXIND ENVIRONMENTAL ASSOCIATES, INC.
   OTHER DETAILS DEPICTED                                                            -P       4 SATU"DOW oz. '
   ON THE PL.&N JkRr. ONLY           SCALE 1                  30'          EEA                WAS349A. NEW HAMrSkIRS U"3
   APPROXIMATE AND CARE,                                                                      (6031 us-US7
   SHOULD BE ZXERCIZED IN
   THEIR USEt                                                              EMCNIERING         MMiTTINC        CONSULTD4C







                            Figure 5. Location of groundwater wells at site KDB.
                                              SO. FT. +/
      A R E               32       000
















                                                                                                   +14.44



                                                                             20.37


                                                                                                                                              10


                                                                         29.36
                                               211.28                                                                                        MAP
                                                         20. IfL

                                                                        CIA



                                                  20.4
                        20.19                             tDA
                                           f


                       4il.57                                     ?



                                                                          +:
                                                                             4 S7
                                                                                an
                                                                      13.17






                                                                     HIGHEST OBS TIDE
  LEGEND:                                                                 (VE<;ETATIO*N)

  PROPERTY BOUNDARY (APPROX.)
  STRUCTURE                                                                              OWNER: BAKUTIS, M.
  EFFLUENT -DISPOSAL AREA (EDA)                                                          MAP# 12 LOT# 29-50
                                                                                         ADDRESS: 14 KIMBERLY DR.
  WETLAND EDGE                                                                                  OCTOBER.-                199A
                                                                                     ELKIND ENVIRONMENTAL ASSOCIATES, INC.
  NOTE: BOUNDARIES AND
                                                                                                             6 DAYMILADOW001L
  OTHER DETAILS DEPICTED                                      tv                                                          '66-
  ON THE PLAN ARE ONLY                    SCALE 1                      50t                                    NASHUA. NZW HAMPSHIRS 43"1
  APPROXrKATE AND CARE                                                                 E E 'A
  SHOULD BE EXERCIZED IN
  THEIR USE1                                                                            EMCROER04C            rt1tmrrnNC         CONSUIMNC










                                                     kE H




















                                            3


                                                    26-








                            Figure6. Groundwater flow directions at site REH during low tide: 3/13/95.









                                                        REi4





                              Cr,



                                                                                q,1,7-5















                                   Figure 7. Groundwater flow direction at site REH during high tide: 5/31/95.








                           Figure 8. Long-term groundwater monitoring in wells at site REH.


           99




           98  - -




           97                                                     REH-5
                    RE 4


         0                                                                                                            ---------- REH- 1
         11 96
         M                                                                                                                    REH-2
         >        REH 1
         .0           - 7rREH-2
         W                                                                                                                    REH-3
         6-
         0
         4j                                                                                                                --- REH-4
         M 95
                                                                                                                              REH-S
                                   REH-3
                                                                                                                              -Tidal Channel,
         0 94  -



           93


                                                 Tidal Channel

           92
               0         1000        2000        3000         4000        5000        6000        7000        8000

                                                          Time (min)

























                                       z


                          Z    q( 0S,

















                Figure 9. Groundwater flow directions at site REH during high tide, based on pressure transducer data:
                11/20/95.



































              Figure 10. Groundwater flow directions at site REH during low tide, based on pressure transducer data:
               11/22/95.








                     Figure 11. Long-term groundwater monitoring of tidal influence in wells at sites on River St.



                96.5


                 96                                                         RH-4

                           RB-3
                95.5



                 95
             0

             M
             >                                                                                                                              RP-2
             a
             w  94.5 --                                                                                                                     RP-3
                                                                                                          RH-2
                                                                                                                                            RH-2
             M
                                                                                                                                            RH-4
             V
                 94--
                                                                                                                                            RB-3
             0
                                                                                       RP-3
                93.5


                 93                                                                                         RP-2


                92.5 -                                                                                      i         i
                  06/13     06/14    06/14 06/15         06/15     06/16 06/16        06/17     06/17    06/18     06/18     06/19
                   12:00     0:00     12:00     0:00     12:00      0:00     12:00     0:00     12:00     0:00      12:00     0:00

                                                                        Time







                        Figure 12. Groundwater flow directions at site WRH during low tide: 3/30/95.




              LOT AREA                18-000 SQ.FT.








                                                                       41
                                                          17.,5
                                                                                                        IGHEST OBS TIDE
                                           0                                                                            (VEGCTAT I ON)





                                                                                                 STOWC WALL













                                                                                                       LEGEND:

                                                                                                       PROPERTY BOU14DARY (APPROX.)

                                                                                                       STRUCTUZE
            "Oil                                                                                       EFFLUENT DISPOSAL AREA JEDAI
                                                                                                       WETLAND EDGE



                                                                                                      OWNER: HUBERT, I & A.
                                                                                                      MAP# 13 LOT# A6C
                                                                                                      ADDRESS: 279 WALTON RD.
                                                                                                          OCTOBER, 199A
    NOTE: BOUNDARIES AND                                                                         ELKIND ENVIRONMENTAL ASSOCIATES, INC.
    O@- 1R DETAILS DEPICTED                                                                                                  4 @AVW9AOOW OZ.
    Q,,    HE PLAN ARZ ONLY                     SCALE 1                           30'                                        NA5349J6 XSW "AMPSMINS ""2
    APPROXIMATE AND CARE                                                                           EEA
    SHOULD BE ZXERCIZED IN
    THEIR USZ1                                                                                                                rmarrwc             co'svtr@j







      Figure 13. Groundwater flow directions at site WRH during low tide: 6/29/95.


  IL OT AREA - 18.000 SQ.F7.




                FLU

                                       -CTATION)
                             \@113HEST 08S TIOE
                                      (VGG






                  '96.S
                             STONC WALL\

                               4@@%

                                LEGEND:

                                PROPERTY BOUNDARY (APPROX.)


                                3TRUCTURE


                                UnUENT D13POSAL AREA (EDAI


                                WITIANO WGE



                               OWNER: HUBERT, J. & A.
                               MAP# 13 LOT# A6C
                               ADDRESS: 279 WALTON RD.
                                 OCTOBER, 199A
          f-'67 *""00@ /Z/,//






 NOTE. BOUNDARIES AND         ELXIND ENVIRONMENTAL ASSOCIATES, INC-
 OTHER DETAILS DEPICTED                6 B&TULADOW OL. '
 O@__.HZ PLAN ARE ONLY SCALE 130' EEA  MASKVJ6X6W NAMPSKISS "0"
 A OXIMATZ AND CARE
 SHOULD BE ZXZRCIZED IN
 THEIR USEI                    04Gv4"*jmC PUMITTINC CoNsurmc








                    Figure 14. Long-term groundwater monitoring in weRs at site WRH: St a rt i n g I 1            10   9 5




             83-80



             83.60


             83.40                                                    WRH-1


             83.20                                                                     WRH-2

           0

           > 83.00
           0                                                                                                              ------- WRH- 1
           Ui
                                                                                                                          ----WRH-2
             82.80                                                                                                               WRH-6


             82.GO
                                                                   WRH-G

             82.40



             82.20


              .82.00
               11/10 0:00      11/10      11/11 0:00     11/11      11/12 0:00      11/12     11/13 0:00      11/13
                               12:00                      12:00                     12:00                     12:00

                                                                Time








                                    Figure 15. Long-term groundwater monitoring in wells at site KDB.


                96


                                                                        4W
               95.5
                                     KDB-I

                95                                                  11 ItW
                            vi"k-N,                         KDBA
                                  v



                                                                                                 14
                                                    11 4.       X
                                                                                                                                  KDB-5
                                                                               KDB-5
                94                                                                                                                KDB-8
                                                             5
                                                                                                                                  KDB-6

                                                                                                    14 pill,
                                                                                                      'lk                  ------- KDB-4
               93.5                                                                        KDB-8                                  KDB-1

                93



               92.5
                                     KDB-6


                92 -
                 03/25 03/25 03/26 03/26 03/26 03/26 03/26 03/27 03/27 03/27 03/27 03/27
                 14:24    19:12    0:00     4:48     9:36    14:24    19:12    0:00     4:48     9:36     14:24   19:12

                                                                  Time








                          Figure 16. Example slug test results in well RH-4 with a 7/16 diameter I foot slug.


                    0         50         100        150       200        250        300        350        400        450













                0.1



            0
           X                                                                                                              -Seriesl

                                                                                                                          --E--Series2





                0.01













               0.001

                                                              TIME (SECONDS)















                                   @(D










                                    1@ C@

                                                                                                               lb-



   AZ




                                                                          "IV
    x                                 @6




                                                                                                       C?
                                                                                                                Cr























                     Figure 17. Groundwater flow directions for the combined sites of RB, RC, RP and RH: 6/6/96.







                         Figure 18. Groundwater flow directions at site WRH: 6/6/96.



         LOT AREA       18.000 SQ.FT.







                                                             \HIGHEST QSS TIDE
                                                                           (VEGETATION)
                               3D





                                      96. 5

                                                             3T*Nt WALL












                                                                 LEGEND:

                                                                 PROPERTY BOUNDARY (APPROX.)


                                                                 3TRUCTURE


                                                                 EFfLUENT DISPOSAL AREA (EDA)

                                                                 WETIAND EDCE



                                                                OWNER: HUBERT, I & A.
                                                                MAP# 13 LOT# A6C
                                                                ADDRESS: 279 WALTON RD.
   Dfl,Tpr or (b1(D1q(0                                            OCTOBER, 199A
   NOTE. 13OUNDARIES AND                                     ELKIND ENVIRONMENTAL ASSOCIATES, INC-
   OTHER DETAILS DEPICTED                                              -p      4 BA'TUXADOW at. ,
   ON THE PLAN ARE ONLY        SCALE 1              30'                        HASNUA.NSW HAM"XIM3 63063
   APPROXIMATIC AND CARE                                       EEA
   SHOULD BE EXERCIZED IN
   THEIR USEI                                                  ENCM41RING      PfRfAl7TD4G  Comsm 7@j







                          Figure 19. Groundwater flow directions at site CSL: 6/3/96-
                                                                      1              -              -D
                       JAREA         40.000 SO.FT. -/-                                                -

                                    H I GHEST 08S. T I DE-            V EGE TA T I ON)
              +zo








                                                                           TZ .-f'


                                                                     13

                                                                                                     lot.$
                -176 114
       94 22









                                                              lot.
                                                                 z



                                                                                       +:2 rm -1
                                                    101.11                                01.12












                                                                                -L3



                                                                                                                        102.41
                                                                            100.1

                                                                              CAUSEWAY ST.
                                                             S3




                         PC
                       941


 .EGEND:                                              SCALE 1                      40'

 ROPERTY BOUNDARY (APPROX.)
 ;TRUCTURE                                                                            OWNER: LOCKE, E.
 ifFLUENT DISPOSAL AREA tEDA)                                                         MAP# 13 LOT# 70
 WETLAND EDGE                                                                         ADDRESS: Al CAUSEWAY ST.
                                                                                            OCTOBER, 199A
                                                                                   ELKIND ENVIRONMENTAL ASSOCIATSS, INC.
 NOTE: BOUNDARIES AND
 OTHER DETAILS 13EPICTED                                                                                   6 RATUSAMW OL
 ON THE PLAN ARE ONLY                                                                 EEA                  NASHUA. HZW "A"rSHOX2
 APPROXIMATE AND CARE
 SHOULD BE EXERCIZED IN
 THEIR USEI                                                                           mcv4mvoc              PL%MrrnNG          CONSULTNIC






                    Figure 20. Groundwater flow directions at site KDB: 6/6/96.
       A REA          3 2 , 000 SQ. F T


















                                                                                                                 13



                                                                                                                AAA P

                                      20.28
                                              20. If

                                                          CA


                                                '3
                                        20*4
                    20.19                      IDA






                                             77.


                                                           +12




   tl Pr-T Pt 0 Fr


                                                       HIGHEST 08S. TIDE
  LEGEND:                                                  (VEGETATION)

  PROPERTY BOUNDARY (APPROX.)
  STRUC11ME                                                            OWNER: BAKUTIS, M.
                                                                       MAP# 12 LOT# 29-50
  EFFLUENT OLSPOSAL AREA (EDA)                                         ADDRESS: 14 KIMBERLY DR.
  WETI.AND EDGE                                                             OCTOBER, 199A
                                                                   ELKIND ENVIRONMENTAL ASSOCIATES, INC-
  NOTE: BOUNDARIES AND
  OTHER DETAILS DEPICTED                                                                             jq
  ON THE PLAN ARE ONLY            SCALE 1                50'         EEA               MASNUA. WSW HAMPSHISS "ou
  APPROXrNATZ AND CARE
  SHOULD BE ZXERCIZED 114
  THEIR IJ3Z1                                                        04CMERING         PIERMMING     CONSULTtmc






                 Figure 21. Groundwater flow directions at site FDC: 6/6/96.'
                            -13,900 SQ. FT. +

                             - U
                            71K.






                                                                         "@/3 0.

                                                                       3LO







                                                  30.81







                                                                 3057




                                                           30-33
                                                          Uri 0 35/3
                                                          3057



 LEGEND:                     SCALE 1           3 0'
 PROPERTY SOUNDARY (APPIOX-1                              OWNER: CRONIN, P.
 STRUCTURE                                                MAP# 9 LOT# 141
 E"LUENT DISPOSAL AREA (MAI                               ADDRESS: 6 FOREST DR.
 WETIAND EDGE                                                 OCTOBER, 199A
 NOTE: BOUNDARIES AND                                ELKIND ENVIRONMENTAL ASSOCIATES, INC.
 OTHER DETAILS DEPICTED                                              6 NATMIADOW 09. *
 ON THE PLAN ARE ONLY                                  EEA           NASHUA. NlW HAMPSMIS 4903
 APPROXIMATE AND CARE                                                ("3) kV%-4=
 SHOULD BE EXERCMED IN
 THEIR USE1                                            040KERtING     rtxmrrnNc   CONUATING








                                                                                Figure 22. -
                             Comparison of ESHWT from Soil Mottling to Measured SHVVT Over Two Successive Years


                     8.0

                                                                                                 x
                     7.0.   ............      A    1995                   ...............:                                            x
                                                                                                 x............  ................... ...................
                                                                                                 x
                                              x    1996                                          A
                                          -Perfect Agreement
                 4)  6.0 ...............          Envelope for Mottling   .............. .........................................................




                     5.0  ......
                                  ............  ..........................................................       ...............     ..................



                                                                                                                                      A
                     4.0 ....................   ..................  ...................................... ...................     ..................
                                                                                                                                                   .00
                                                                                                                                               .000
                                                                                                                                            #100


                     3.0 ..........................................................                   ....... .......
                                                            x                                                                                    -------
                CUD
                                                                                                 x
                                                      A
                                                                                                 A
                     2.0 ....................   .................. ..................    .................                         ...................


                                                                                             0000 000
                                                            x
                     1.0  .................     ............a ...................... . -------------------               --------  ---------------

                                                            A
                                                                          000, 000

                     0.0     . . . . . . .
                         0.0                  1.0                 2.0                  3.0                  4.0                  5.0                  6.0
                                                                      ESHWT (ft below ground surface)




                                                                                                                                                                           3





                            FIGURE 23
           HAMPTON HARBOR STUDY AREA
                    Surface Water Sampling Sites
               and Shellfish Harvesting Classifications

                           ï¿½ Conditionally Approved Areas ==>>

                           ï¿½ All other areas closed to shellfishing

















                                           15  6      ATLANTIC
                                                        OCEAN


            %h 8                                          r1EVT
            9                      14 13                  29W   4SU
               7

              5   3                     2
 10          4

         12










                                                         37UDY
                                                         Agri












                                                                                                              FIGURE 24A
                                                                                                                SITE WRH
                                                                     Mean Nutrient Concentrations in Wells and Lysimeter
                                                         25
                                                                                                                              N03
                                                                                                                              NI-14
                                                                                            ..............  .......          DIN       ..........
                                                         20    . ...........*------ ----                                                       ....................................................





                                                         15    . ................                                   ... ..................................


                                               z E


                                                                     ............ ... ....                          ... ................................... .. .. ... ................
                                                         10    . ....                     ......    ..................
                                               0
                                               z



                                                                     .............        .... ......
                                                            5  -                                                    ... ................................... .. .. ... .................-



                                                            0                                                                          Rm

                                                                     Up        LYS           5          4           3          6           7           8          9          10
                                                                                                                WRH         WELL




                                                                                                              FIGURE 24B
                                                                                                                SITE WRH
                                                      0.35        Mean Phosphate Concentrations in Wells & Lysimeter

                                                         o.3 -    ......  ....... ........      .......       ...........                     ... ...... ...........
                                                                                                                                       P04

                                                      0.25     . ................................................. .................................. ...............................................................-

                                               E         0.2   . ..................................I.............. ...................................................................................................-

                                               0      0.15         ................................................ ................................................................................................


                                                         0.1   . .................      ..................    ................................. ...............................................................



                                                      0.05     . ................       ..................    .................................................................................................



                                                            0

                                                                     Up        LYS           5          4           3          6           7           8          9          10
                                                                                                                WRH WELL












                                                                                           FIGURE 24C
                                                                                             SITE WRH
                                                    Water Table Depth in Relationship to Bottom of EDA
                                                                            February 1995 to May 1996
                                           0
                                                                                                                                                                         B WRH1
                                                                                                                                                                                WRH2

                                                  ................. ................ ................. ................ ................. .................................. ................. ................ ................. ................ ................
                                                                                                                                                                                WRH3D
                                                                                                                                                                                WRH4
                                O.%        2      . ............... ................ ................. ifttt,6m ... of -EDAI ... .........            A                -AL - - WRH5
                                0 U)                                                                                                 &N 14. -0                                  WRH6


                                           3      ................                              .... ..........             ................
                                   0
                                IL
                                w
                                           4   . ................. ................ ................ ......       ................. ................ ................ ................ ................-
                                   0




                                                            ...                          ........          ............. ................. ................ .............
                                           5   . ............. 36@9 ..... S DM 0                                                            .... ................ . ................


                                           6
                                               U)       Ul)       LO      Ul)       LO       U')       U')        LO      LO       co       (.0      (O        (O
                                                        0)        a)                         CD        CY)        M       CD       0)       CY)      a)        0)
                                                                                                        I         I                                             1
                                               ,6                 IL                         _L        M          >                L        .6        L        >%
                                               a)       C13       M        CL       cc$                =3         0       0        a)       (D        CO       CZ
                                               U_                         <                            <          z       z        LL       LL

                                                                                                   DATE













                                                                                                                                            FIGURE 24D
                                                                                                                                                SITE WRH
                                                                                   EDA Treatment with respect to Groundwater Depth
                                                                                                                       January 1995 to May 1996
                                                                       25 -                                                                                                                                                                             0
                                                                                                          N03
                                                                                                          N H 4                      .............*...........   ........                                   .................. *'*'****** ......*...........
                                                                       20                     0- P04                   .....  ........ ....................................................................................... .................................................

                                                                                . ............................................. .......  . ......... ..........................................                        ..................................       (D
                                                         0                                                                                                                                                  -------------
                                                                                                                                                                                                                                                        2

                                                                                                                                                                                                              --- -- VA  ...
                                                                       15                                                                                                                                                                                       0
                                                                                   . ................................. /   ......................................... \............. )/--:        ....                     ............                          11
                                                              __j                                                                                                                                                                                               0 M
                                                         P-"--                                                                                                                                                                                          3
                                                         Rt tm
                                                         x E                                                                  --m--H20TBLI                                                                                                                      CL
                                                         z             10       . ..............\ .....   .............                                               ... .. ............a....... ............................... .....................
                                                                                                                                                                                                                                                                Cn,*
                                                                                                                                                                                                                                                                E = r
                                                         CV)                    . .....................  .................. ............................. ............. .................. k...........................................
                                                         0
                                                         z                                                                                                                                                                                                            (D
                                                         b."                                                         ................................ ................... ...............:                                                                      W M
                                                                           5    . ........................                                                                           ........ ....  ..............        .........    ...............
                                                                                                                                                                                                            ....................... ..      .........                %..'
                                                                                                                                                                                                                                                   F    5
                                                                                . ...................................................................................... ......................................................... .................................. ......  ....



                                                                           0                                                                                                                                                                            6
                                                                                LO        LO         LO         LO         LO        LO         U')      LO           LO        LO        LO        LO          (0        (.0       (0
                                                                                          a)         a)         M
                                                                                                                                                                                6)                              -6        L
                                                                                as        CD          CIS        CO        OL        a.         cc                                         0         0          0)        0)         Ca          cc
                                                                                          U-                               <         <          2                               <         z         z           U-        U-
                                                                                                                                                            DATE
                                                                                                                  4        ... .....
                                                                                                               )4                 . ........... .  . ...



                                                                                                               ......... .. . .....


                                                                                                          .............                                           . ....x       ......
                                                                                                                                                                                   - \yet.











                                                                                                                                                FIGURE 24E
                                                                                                                                                     SITE WRH
                                          Relationship of EDA Water Table Depth and Nutrient Levels in Lysimeter Samples
                                                                                                                            August 1995 to June 1996
                                                           25       --                                                                                                                                           I            I           1                            0
                                                                                                                                                                                                                              N03
                                                                                                                                                                                                                              NH4
                                                                        ............. .....    ............. ............. ............. .............. ............. ............. ............. .............               P04         ............ ...........     1
                                                                                                                       ........... .............. ............. .............I............. ............. ............. ...               ............ ......
                                                           20       -     ........      .......                   ..... ..
                                                                                                                                                                                                                                                                               ai:*
                                                                                                                                                                                                                                                                                    0)
                                              0                         .......... .............. ............. ............ . ............   ..                                   DA                                . . ........................... ........
                                                                                                                                                         Otto@,Of--,E-                                                                                                              In
                                                                                                                                                                                                                                                                       2            (D
                                                                                                                                                  dP
                                                                                                                  .... ... ... ....
                                                           15                                                          ......                                                                                                 N           .............
                                                                                                                                                                                                                                                                                    cr
                                              V cm                      ............. .............. ......... .. .............. ............ .............. ............. ......... . .......... ............. ......... ......... ........ ............. -------- ------ -------0
                                                                                                                                                                     IP                                                                        %
                                              z E                                                                                                                                                                                                                              M
                                              &-a                                                                                                                                                                                                                              CL
                                                                                                                                                                .... .......   -------------    ....... ......  . .....   .... .................. *** ..... .... ....
                                                           10                                              *--H20TBL                                                                                                                                                           cn
                                              V)                        ............. .......                                                 ............. .............. .... ....... ............. ..... ...... ............................ ..............I..... ...... ... ..........-
                                              0                                                                                                                                                                                                                        4       E,       r
                                              z
                                                                                                                                                                                                                                                                                    (D


                                                                                                                                                                                                                                                       ...........
                                                               5    . .....           .......... ....  **'*'**"* ............ ......  ......... .....  *-* ---      ............. ............. .........*. .............. .              ........... ..
                                                                        .0 ........ ............. ............. .............. ............. ............................ ............. ............. ............ . ............. ............. ....... .....  ........-5


                                                               0                                                                                                                                                                                                       6
                                                                    U)          U)                     U)         U)          U,)        U)          co         (D          w          CID        CD          (0          (0          co         (0          (0
                                                                                C"                                CD          C"         C"          0)         M           0)         M          CD          C"          M           C"         C"          M
                                                                                                       >          >                                  .6         @6          -6
                                                                                                       0          0            0         0           CD         (1)         CD         a)          as          cc$        CL          (0          C13
                                                                               U)         0            z          z           z          z           LL         LL          U-         U-                                 <
                                                                                                                                                                DATE
                                                                                                                                                     k-01

                                                                                                                                                                                                                                          ............ ............












                                                                                                 FIGURE 25A
                                                                                                      SITE CSI.
                                                    12     Mean N-species Concentrations in Wells & Lysimeter


                                                    10   . ........                    ......................................... .......................................................................
                                                                            N03
                                                                            NH4
                                                     8   . ........         DIN       .................. ................ ......................................................................-




                                                                                                                    .......................................................................
                                           x 'm      6   . ...................................  ...........
                                           Z E
                                           Cf)                                            N
                                           0                                              N                         .......................................................................
                                           z
                                                     4   . ..................................
                                                                                          N

                                                     2   -                                            ...           ...                   .....    ......... .......



                                                     0   -

                                                                  1             2            LYS              4             3              5              6
                                                                                                      CSL WELL




                                                                                                  FIGURE 25B
                                                                                                      SITE CSL
                                                                  Mean P04 Concentrations In Wells & Lysimeter
                                                     5


                                                     4   . ............................................... ........    P041      ......................................................


                                               -j    3   . ............................................... ..............................................................................................
                                                E

                                                0
                                                     2      .............................................. .............................................................................................





                                                                ........................................ .............................................................................................
                                                                           D @N
                                                                           ................ ........
                                                                                       .....   ...





                                                                ....................................... -----





                                                                ......   .. ....         ..                                                                    .......

















































                                                     0-

                                                                  1             2            LYS               4            3              5              6
                                                                                                      CSL WELL












                                                                                                               FIGURE 25C
                                                                                                                    SITE CSL
                                                                  Water Table Depth                                 in Relation to Bottom                                   of EDA
                                                                                          February                  1995           to June 1996
                                                0
                                                                                                                                                                                                                         B CSL1
                                                                                                                                                                                                                                  CSL2
                                                     . .................. . ...................                                                                    ......   .....:
                                                                                       ........................................ ...................T................... . .. ... .... ...................... ....................-
                                                                                                                                                                                                                                  CSL3
                                                                                                                                                                                                                    --m--CSL4
                                         cc
                                                                                       .................... ................... . ................... .................... .. ... ..... ...... ....... .. ... ...................
                                                2        .......... ....... ...... .............
                                                                                                 Elottom',of EDA                                                                                                                  CSL5D
                                                                                                                                                                                                                                  CSL6

                                                         . .....        .......... ... . .................. ...  .............. ................... .......... ....... .. .....        ... ........
                                                3                                                                                                               ................... .....          A'A; -----


                                    CL
                                                         ....................................... ................ ..... %@ ....... .............. ......  ...... . ............... ....................I....................I..................
                                    w           4

                                                                                                                                   io


                                                                  ................................................................
                                                5    . ...........5
                                                                                                                 .. .............  .....  .......... ...........  ........ ...............................  .......... ....................-
                                                                  V       Sepd ation:
                                                                                       r


                                                6    . .............. .................... .................... -------------------- ................... .................... .................... ....................
                                                                                                                                                                                ----------  ........ .......... ......
                                                               481         Sepalrationi

                                                7
                                                     LO             LO                            LO             LO             LO            LO             (0             (0              (0
                                                     0)             CY)            0              C)                            CP            M              9              0')             T
                                                      I             L@              1                                                         +1
                                                     .0                                                                         V)                           M                              >%
                                                     0)                                                                         :3                           CD              CL             co
                                                     U-                                                                         <             8              U-
                                                                                                                          DATE













                                                                                                                                                            FIGURE 25D
                                                                                                                                                                 SITE CSL
                                                                                           EDA Treatment with respect to Groundwater Depth
                                                                                                                                     January                       1995 to May 1996
                                                                            20                                                                                                                                                                                                         0

                                                                                                                    N03
                                                                                                                    NH4                                                                                               A.
                                                                                                                                                                                                                                   --N--H20TBL                                                   Ca
                                                                                                                        04           ...... ..................................... ........................................ ........
                                                                            15       . ......                       P                                                                                                                                                                            (D
                                                           0
                                                           CL
                                                                                                                                                                                                                                                                                       2
                                                                                                                                           Bottom of EDA\                                                                                                                                         , Cr
                                                                                                                                                                                                                                                                                                 0
                                                                            10       . .....                                                                                                                 ...................... .............................
                                                           z      E                                                                                                                                                                                                                              CL (D
                                                                                                                                                                    .......... *'*'*  ... *"**'\/"                                                                                                      a
                                                                                                                                                                                                                                                                                       3         Cn..*
                                                                                                                                                                                                                                                                                                 C
                                                           Cf)
                                                           0
                                                                                                                                                       ..................... .................. ................  ........ ............ ........              ...................                      (D
                                                                               5          .......            ..............                .............*                                                             0 ,                                                                               a
                                                                                                                                                                                                                     W                        A                                        4
                                                                                                                                                                                                                                      v
                                                                               0                                                                                                                                                                                                       5
                                                                                                  LO            Ul)          LO            Ln          Ln          LO            LO                        Ln           LO           (0            W                         CO
                                                                                     a)           a)            CY)          M             0)
                                                                                     CIS          0)            (D            Ca           CL          Ca           :3            :3           :3                                                   a-           CO
                                                                                                  U-            U-                                                               --.)        -".)                       0            U-
                                                                                                                                                                              DATE














                                                                                  FIGURE 25E
                                                                                  SITE CSL
                       Relationship of           EDA Water Table Depth and Nutrient Levels in Lysimter Samples
                                                                    August 1995 to June 1996
                                 30                                                                                                              0
                                                                   N03
                                                                   NH4
                                 25   . ....... ... .........            ... ............... .. .................................... .................. ........ ........ ................. ...  ..........
                                                                                                                              ... . ..... ..................
                                         . ............ .........  P04   ... .................. ................. .................. .................. ................. ................. ...... W:*
                                         . ..........                  .... 41.   . .................. .--w--H20TBL ................. ............. .. .................
                         0       20   . .......  ................ .............................
                                         . ............... ................. ..  ............. 0.0 ...... .................. ..... ................ .................. ...........2
                                                                       Bo tom ol EDA
                                                                                                                                                       0
                                 15        ............................. ......... \..................... .................. ................. .................. ........ ................. .............. ......../...... ..................
                            CM                             0                                                11                                -
                                                          IF         Lvs meter Depth                                                                   CL
                            E            . .................... ... ................. .................. .................................... .................. ------ ......... .................. - 3
                                                                   )                                                  fta.
                                                    OP                                                                                        -        cn
                                 10   . ..................a........... .................. .............. ................ .............. ... .................. ..................I................. ............. .... .......... ..................



                                             ........................ .................. ....... . ..... ..... ......... ................ ................................... .................. ..... ....... .................
                                                                                                                                                 4
                                    5       ........................... ........... --- . ......... ................r................ 11-1-1*-*-,*--,--I-**"* ............ . . ........... .................
                                                                                                            1 7-                --------
                                                                   ----- . ....
                                                                                                                                .........

                                    0                                                                                                            5
                                      LO      LO        LO         co    (0       co     w                                 (0       C.0
                                      CD                           CD    M        M      0)               CD       CD      0)       CD
                                      &                            L     L        -6     Le                                         IL
                                      M                 0          CD    0        (D              0.       ca      w                =3
                                      <       0         z          U-    U-       U-              <

                                                                                       DATE








                                                                                 FIGURE 26A
                                                                                  SITE KDB
                                                        Mean N-species in Wells and Lysimeters
                                     35

                                                                         N03

                                                                                                                                  ...................
                                     30   . . ...................  ....  NI-14   ..........................................................................................

                                                                        DIN
                                     25   . .............. .. ... ...........  ......................... ......................  ...................................................................................



                                                                         . ... ...............                   ... .........................................
                                     20   . .............. ... .......................


                              Z E           .............. ... ............... ... .........
                                     15                                                                                         .. ..............


                              0
                              z      10   . .............. ...............                                       ... ............... ... ..............



                                                                                 ..............                  ... ...............
                                        5                                                                                            ...............


                                        0

                                               1   IVILYS 3          5       7     2    SLYS 4           6       8     10 12          14
                                                                                   KDB WELL


                                                                                 FIGURE 26B
                                                                                   SITE KDB
                                                             Mean P04 in Wells and Lysimeters
                                         14



                                         12  . ............. ........................................................ .............................. ...................................................
                                                                                                                            p3q
                                         10  . ............. .................................... .................. ............................................................  .....................


                                    -j
                                          8  . ............. ....................................................... ..................................................................................
                                     E

                                    00    6  . ............. ....................................................... ..................................................................................


                                          4  . ............. ....................................................... ..................................................................................



                                          2  . .............. ....................................................... ..................................................................................



                                          0

                                                  1 MLYS 3             5        7     2 SLYS 4             6       8     10 12 14
                                                                              KDB Well/Lysimeter













                                                                                                                                FIGURE 26C
                                                                                                                                  SITE KDBM
                                                                      Water Table Depth in Relationship to Bottom of EDA
                                                                                                               March 1995 to May 1996
                                                       0 -
                                                                                                                                                                                                                                                     B KDBM-1
                                                             . .................. ................... .................. .................. .................. ...................................... .................. .................. .................. .................. - --*--KDBM-3
                                                                                                                                                                                                                                                                 KDBM-5
                                                       2     . .................. ................... .................. .................. ........... Bb tt6 "'64 ...  EDA .................. .................. .................. ..................-
                                                                               I                               I                                                                                         I                                                       KDBM-7

                                               >             . .................. .................. .................. .................. .................. ......................................................... .......... . . .............. ................ .


                                                       4                                                       .................. .................. ........................................................ ...
                                         G),0
                                               r
                                                                                    ...........                                            ....       9.1 ...  epatati-on-j-
                                         MO
                                               L.                 ---                                   .      I            .       .......                                           Y..    ...  /,Or
                                                                                                                            L                                                         o
                                         CL            6         .............   ......                        ...............r                                 ........... ......... 00oe..       ...... ................. ............
                                         W


                                                             . ................ ................. .................. .................. ..............                             .......     ........... .................. ..................


                                                       8     . .................. .................. .................. ..... ............ .................. ...............      ....... .................. .................. ................. .


                                                             . .................. ................... ......     ............. .................. ..................       ................. ..... ............ .. ............... .................
                                                                                                    ............



                                                     10      -
                                                             LO             Ln            LO              LO             W               Ln             u')            LO             Ln              (O                            (.0
                                                                                                                                         CD             0)             CP             CD              9
                                                             CZ              co            CL              co                             :3            =3              :3                            CD              CL            CZ
                                                                                                                                                                       <                              u-             <
                                                                                                                                           DATE













                                                                                                                FIGURE 26D
                                                                                                                  SITE KDBS
                                                            Water Table Depth in Relationship to Bottom of EDA
                                                                                                March 1995 to May 1996
                                                 0
                                                                                                                                                                                                                           Ei KDBS-2
                                                                                                                                                                      .................. .................. .................. - --O--KDBS-4
                                                 2 -                   .................. .................. .................. ............ Battom.. of ... EDA ................ .................. ......                          KDBS-6
                                                                                                                                                                                                       ..........
                                                                                                                                                                                                                                     KDBS-8
                                          425    3    . .................. .................. .................. .................. .................. ................... ...................I.................. .................. ..................
                                          A-
                                      UO         4    . ................. ............                                       .... ..... ................. .....                 .... ................ ......

                                                                                                                                                             ........... ...... . .........  ..... .......  ..........
                                                                                                                                                                             ---                     -------


                                          C      5    . ................                                                                                                    ......
                                          0
                                    CL    a      6                                                                                                      - Fn      ..............       ., . ........ ... @%
                                    Lu

                                                          ................. ................... .................. .................. ......... ..............  ................. .................. .... ... .... ............... ....
                                          5      7                                                                                                                    .... ...                      ..............

                                                 8    . .................. .................. .................. .................. ...................... ...... .... ....................... . .. ...... .... ............ ..... ........ ... ...................

                                                 9    . ................... .................. .................. .................. .................. ................. .. ............I.. ............. ............... .................. ..................

                                               10
                                                      U)           LO           LO                         LO            LO           LO             LO           u')           (0           (0
                                                      CD           0)                                      Cn            0)
                                                                                                                                      CY)            CP           CD            CP           M
                                                                                                                                      --L            CM           -6            .0           Lt.
                                                      Ca           Ca            a            Ca            Ca                         :3                                       a)                          Cfj
                                                                                                                                                     <            0             u-           <

                                                                                                                              DATE













                                                                                 FIGURE 26E
                                                                                  SITE KDBM
                                                EDA Treatment with respect to Groundwater Depth
                                                                      January 1995 to May 1996
                                        30                                                                                                   0





                                                                                             ...................
                                        25  . ...................................................................................................K ...............................................................................2W*
                                                                                                      Boftom of EDA
                                0                                                             NNN'
                                CL
                                fi..d   20  . ........       N03      ...........................................
                                                                                           ............................. .....................................................................40
                                   __j                                                                                                                 cr
                                                    --0- N H 4                                                                                     0 iF
                                        15  . ........                ........................................ ............................................................... ...... .............. .. .............
                                z E                                                                                         %%
                                                           won.,                                                                                   CL M
                                                                                                                                             6     Cnv
                                rA                                                             --m--H20TBL
                                CO
                                0       10  . .........................................................................................
                                z
                                                                                 ...........  ...........                                    8
                                          5     ....... ........ .......... ............................ ................. ....................................... ....................
                                                 '0000
                                              ro,

                                          0                           v     v
                                                                                                                                             10
                                                                                                       ................ ...............














                                            W       Ul)     LO     LO              U)      LO     LO      LO     Ln             CD       CO
                                            CD      CY)     CD                     M                                                     CD
                                                                   CD                      Cn     CD      T      T              T
                                                                   %L                      Ct-    -L      CD     t5
                                            cc      cc       (a    CL      CO      CO             =3      :3             CD     CL       CO
                                                                   <                              --3     <      0      UL      <
                                                                                           DATE













                                                                                       FIGURE 26F
                                                                                        SITE KDBS
                                                    EDA Treatment with respect to Groundwater Depth
                                           20 -                           January 1995 to June 1996                                                     0

                                                                                                                                                        2    ai
                                            15  . ................................................................................................................................... ----------------------
                                   0
                                   a.                      A     N03
                                                                 NH4                                                                                    4    C)
                                                                                                                                                                 Cr
                                     __j                         P04                                                                                         0 iF
                                   P"--                                  ................................................. --m--H20TBL
                                       tM   10                                                   1                                                 ...       C
                                       E                                                                                                                     CL M
                                   z                                                                                                                            M
                                                                         low m'b                                                                        6    Cn

                                   Cf)
                                   0
                                   z          5 . ....................................................................................................... ........................... ... C.)
                                   b..d                                                                                      -------------------------------------------- (D (D
                                                                                                                                                        8


                                              0 U)       U)      U)      U)      U)      LO      Ul)      U)     Ul)     Ul)      CD      (D            10
                                                0)       0)      0       0)              CD      a)       CF)            CP       91      9,       a)
                                                IL       .1      IL      L@              :@,     C@                      -U       .0               >%
                                                Ca       Ca      Ca      CL      CO      Ca      :3       :3             0        0)               CO
                                                                         <                                       <                U-      <
                                                                                                 DATE












                                                                                FIGURE 26G
                                                                                  SITE KDBS
                      Relationship of EDA Water Table Depth and Nutrient Levels in Lysimeter Samples
                                                                      August 1995 to May 1996
                                   30                                                                                                    0



                                                                          .............................. ........ ....... -- ....... ..............  ......-......... -- ..................


                                                             . .................. ........ ............. ................ .. ........ ....... ....... ........... .................. .......-.......... ....................
                                   25   . ......             .............  *"** ................. ..Elaftom. of....E.-DA ............... ................... ................... ........72
                                                             -77                                              LVsirneter DeWh
                            0                       .................. ......  .......... ... ...........  .......... ........... ... .... ....... ................... .....I........ (D
                                          ;-7 ......                                                                      ....
                            LO--d  20        ... ...... ................... ...........  ...... ............ ................... ........... ..... ........ ...... ... ........ ------
                                                                      . .................. ............... ....... ......  ....... ..... ........ .................4
                                                                                                                                             C)
                                                                                                                                                 cr
                            It 0) 15    . .. ............... .........  ........ .. ...... ...... ............. ........ - ---------- .. ...  ... ......... ...0
                                                                                             --------  ---------       ....... .................


                                                                                                 "'L
                            z
                                                                                                                                         6   CL
                            14                                                                                                               W r-O
                                   10   . ...... .  ................ .................. ...... ........ ... . . ...........  ..... N03 ------* -----------  :r
                            0              ..... ..... ................... ................. .. ............... .... ...........  ...... ...............
                                                                                                    -* -NH4
                            z
                                                        ........                                      e P04         .................T..................  (D
                                           ......... ----- w... -] --*--H20TBL I      .. ......  ..........                              8
                                     5        ... ... ........ .........              ... ..... .............       ....... .......... .............

                                              .... .. .................. ......... ........



                                     0                                                                                                   10
                                        Ul)     U')                          U')     U')
                                                                                                                                    a)
                                                                                               .6
                                        :6)      L
                                                 Q)                          0        0
                                                          0        0         z       z         U-      U-
                                                                                    DATE
                                                               ............



                                                                      ...................



                                                                    .... ...........













                                                                                                        FIGURE 26H
                                                                                                         SITE KDBM
                              Relationship of                   EDA Water Table Depth and Nutrient Levels in Lysimeter Samples
                                                     30 -                                August 1995 to June 1996                                                                    0


                                                              ........................... .....................         ...........           .. ........................... ....................
                                                     25    . .......................z                                                                                            L 2
                                             0                                     Bottoi4     ..... o.f. EDA           ...........
                                             a.                               I............
                                             b-0                   -          I                I              I Lvsime4r Depth

                                                                 .................................................. ............I.............. ........................... ........................... ........................... ................. . ........
                                             ad      20
                                                .-j                                                                                                              I       ..............
                                             V-"@-              ......................... ........................... ........................... ........................... ........................... ........................... .... .........4C) w
                                             ,Rr tM                                                                                                                                            cr
                                             X E                                                                                                                                          0
                                                                                                   .................. ........................... ..... . ................................................ ..... .c
                                             z       15                                ... ...... ........      MM                                                                        3
                                             I.."                             N03                                                                                                         CL
                                             P4                                                                                   qb
                                             CV)                              NH4       ............              . . ................. ...............                              6 n-R
                                                                                                                                                                                          c
                                             0                        0       P04       ............                                                                                      C =r
                                             z       10 -...                                                                                                                              -1
                                                                                                                                                          H20TBL ....
                                                                                                                                     ..........F
                                                                                                                                                                                          C) 0
                                                                                                                                                                                               M
                                                                                                                                                                 ................... 8
                                                                                     ....................... . ...                                   ...................
                                                        5                     ..................................... .......... . ..... ....... ....... .....       .........................


                                                        0   U)                                                                               co               CD               co    10
                                                                           (D                                                                                 CD               a)

                                                                                                                             CL              co                :3              :3
                                                                           C/)               0
                                                                                                                DATE










                                                                                 FIGURE 27A
                                                                                    SITE REH
                                                        Mean N-species in Well Water Samples
                                   25




                                   20    . .................                 ................................................... ................ ......................................................
                                                                  NO
                                                                  NH
                                                                  DIN
                                   15    . .................                 ............................................. ................ ................................................


                          Z E

                                   10    . .................................................................................... ......... ..............................................
                          CV)
                          0
                          z


                                      5  . ..................................................................................................... ... ................................................




                                      0

                                                 1            3              4           6             5            2             7             8
                                                                                        REH WELL


                                                                                  FIGURE 27B
                                                                                     SITE REH
                                                             Mean P04 in Well Water Samples
                                   0.5




                                   0.4   . ........................................... ** .......  **'** ......... ..... ................................................................................................
                                                                                                                            P04



                                   0.3   . . .............................. .............................. ...............................................................................................

                             E

                             0
                             CL    0.2      .......................................  ................ .................................................................................................



                                   0.1                  ................................................... ........ .......................................... ...
                                                                       1
                                                                      3





















































                                                 1             3             4            6             5            2             7             8
                                                                                         REH WELL












                                                                                FIGURE 27C
                                                                                   SITE REH
                                         Water Table Depth in Relationship to Bottom of EDA
                                                                     March 1995 to May 1996
                                                       [Bottom of EDA assumed to be 2' BGS]
                              0
                                                                                                                                                                       REM
                                                                                                                                                                       REH2
                                                                                                                                                                       REH3
                                        .. .........I.................... ..................... ........ ....... .....-........... .............. . . ............ ............... ... ........... .. .... ...
                                                3                              .0    %                0      %                         do                              REH4
                                                                             0        %                        %                                             --A--REH5
                       cc                                                                                        %
                                                                                                                                                                 0-    REH6D
                              2




                                                     ........... ................... ................... ......... . .......... ..... ......... ... .. .... ... .... ............ .. . ....................
                   x          3
                       0
                   w                ..................... ...........
                       @:     4                      . ....... .................... .......... ...... .................. ............... ... .... .............. .................... .....................

                       w      5                                         6" Separat! n
                                                         v                          araticn
                              6   U').        LO         LO         Ul)         LO         Ln           LO        U')         LO          CD
                                                         0)         0)                                  CD                    CD          CD
                                              CL         Ca                                 :3          :3                                CL



                                                                                       DATE
                                                                                                                     .... .......













                                                                                                                       FIGURE 27D
                                                                                                                           SITE REH
                                                                     EDA Treatment with respect to Groundwater Depth
                                                                                                  December 1994 to May 1996
                                                           25                                                                                                         I         I                                    0
                                                                                                                                                                      N03
                                                                                                                                                                      NH4
                                                           2 0 -                                     .............. .............. .............. .............. ...  P04       .............. .............
                                                                                                                                                                                                                     0.5
                                               lie
                                               0


                                                           15         ............ ............................. .............. ..... ............. ............  ....... ... ............................. ...........
                                                                                                                                                        I   I                                                                  :v rr
                                                                                                           H20TBL                 of all                    a                                                                  0
                                                    tM
                                                    E                                                                                                                                                                          CL
                                               z
                                               b..A                                                                   ..... ...... ...... .... ..... .. .............. .............. ..... ............... ...
                                                           10     . .. ....... .............. ............. ............. .........                                                                        ......    1.5

                                               C#3                                                                                                                    a
                                               0
                                               z
                                               6-6
                                                              5                                                                                                                                                      2
                                                                                                                                                      Bottom          of



                                                              0                                                                                                                                                      2.5
                                                                  'Ict      LO                    LO        LO         LO         U)        LO          111)          U')   LO          LO         (O
                                                                  CD        0)                    CD                              CO                    C)            T     T           T          T
                                                                  6         L                      &!.                            C@                    -1            tM    t5          0
                                                                            M                      CL        co        CZ         :3         :3         :3            :3                a)         CL        co
                                                                            U-                    <                                         -'j         -")           <     0
                                                                                                                                        DATE









                                                                        FIGURE 28A
                                                                           SITE RET
                                  12--             Mean     N-specles In Well Water Samples

                                   10  - ------  ............................. ............ .......................................................................................
                                                                                                         N03
                                                                                                         NI-14
                                    8  . ...................................... ............ ..........................  .........................-
                                                                                                         DIN



                                    6  . ...................................... ............ ...........I .............................................................................
                           x
                           Z E



                           CO)                                     ............  ........................................................................................
                           0        4     ....................................
                           z


                                    2  . .........    ............ ............  .............   ...........................................................




                                    0

                                                             2             3              6             5            4
                                                                           RET WELL

                                                                       FIGURE 28B
                                                                          SITE RET
                                  0.3                 Mean P04 in Well Water Samples


                                0.25   . .......................................................................................... .............................................................

                                                                  P04


                                  0.2  . .......................................................................................... ............................................................



                           E
                                0.15   . .......................................................................................... ............................................................
                           0


                                  0.1  . .......................................................................................... ............................................................



                                0.05   . .......................................................................................... ............................................................



                                    0

                                                             2              3              6             5             4
                                                                            RET WELL











                                                                                             FIGURE 28C
                                                                                                SITE RET
                                                      Water Table Depth in Relationship to Bottom of EDA
                                                                                 March 1995 to May 1996
                                                                   [Bottom of EDA assumed to be 2' BGS]
                                              0
                                                                                                                                                                                  RET1
                                                                                                                                                                                  RET2
                                                                                                                                                                                  RET3
                                                                                            Bottom of EDA                                                                         RET4
                                                                                                                                                                                        Tr%
                                              2                                                                                                                                   RE.
                                       cc                                                                                                                                         RET6


                                                           ......... ...........         ...................... ....................... .................... ...... .............. ............. .......
                                       U)     3                               .........
                                                                                         i-@ -777@
                                       r                   ......... ... ................................ %.......                          ... .....
                                              4     ............                       ....           ....... .. .. . ................. ............. ....... .. ......................
                                                                                                                             A Oft

                                                                                          Separ ion
                                              5                                                       t

                                       0
                                       -              48" $eparat on
                                       0      6
                                       CO


                                              7     ..................... ....................... ...................... ..................... ..... ............. ........ ............. ..................... ..... ..... .......................
                                                                 ................ N-,@---

                                                                         ...... .........
                                                                 ...........
                                                                        -i36

                                                 LO            LO         U)           LO          LO          LO           LO          LO           LO          (0
                                                                                       a)                                                            0)

                                                  Ca           CL          Ca          cd                       :3          :3                                    cc


                                                                                                     DATE











                                                                                                                                                     FIGURE 28D
                                                                                                                                                        SITE RET
                                                                                           EDA Treatment with respect to Groundwater Depth
                                                                                                                             December 1994 to May 1996
                                                                               4                                                                                                                                                                            0
                                                                                                                                                     N03
                                                                           3.5       . ................ ............... ...  @% .......              NH4            ............. ................. ................. ................. ................. ..............
                                                                                          ............... . ............. .......                    P04           ............. .................................... ................. ................. .................

                                                                                                        .. ............ .........                                  ........ .... ................ ......W
                                                                               3     . ................                                                                                                                                 .........                     (D
                                                              0                         . ..............
                                                                                     -                  . . .. .......................... ......     .........   ----'B@ttom of                    ... E A      ........... ................. .................
                                                                           2.5
                                                                                                                                                                                                                                                            2
                                                                                                                                                                                                                                                                            Cr
                                                                                                                                                                                                                                                                      0
                                                                               2     . ................ ..... . ....... ........... .... .......%....... ................................... .................. ................. ................. ................. .................C
                                                                    tM                                                                                                                                                                                                no
                                                              %za E                                                                                                                                                                                                   CL (D
                                                                                        . ..............                                             ................. ........... .... ................. ............... . ................. . ............... .................
                                                                                                             *. *** .. ........ ...                  ............. .............................. ................. ................. ................. .................3
                                                                           1.5       . ................                                                                                                                                                               Cn
                                                              0                                                                                                                                    .........                         J1                                     -k
                                                              C#)
                                                                                        ................. ........... .. ... ............ ................. ........  ..... ................ ........ --D--H2                                                               (D
                                                              z                1                                                                                                                               OTBL                          ...........              (D (D
                                                                                        . ............... ............ . . . ............. ................. .............. lk ................
                                                                                                                                                                                                                                   ..... ................. - 4

                                                                                                           .........  ......... .... .......... ..... ......... ......                .....    .....                           ...........
                                                                           0.5       . .............                                                             . .. ... ...


                                                                               0                                                                                                                                                                            5
                                                                                     ,it          U)              U)            U)             U)            U')           U)                                          U)                           CD
                                                                                                  CD              a)                                                                      Ul)          LO              a)           Ul)
                                                                                                                                                                           T              0            0)
                                                                                                                                                                           C              -1           -1
                                                                                                                  CO            CL             Ca            CO                           Z             :3             :3                            Ca
                                                                                                  U     . ...... ..             <                                                                                      <            0
                                                                                                                             .........                                                 ...... ................ ................ .......
                                                                                                                      ................                                                                                 ..... .......
                                                                                                        ............ ...                                                                                     . . .......
                                                                                                                                                                                      ....... ....
                                                                                                        ............  ........  ----









                                                                                                                                                                  DATE








                                                                                  FIGURE 29A
                                                                                      SITE RB
                                                        Mean N-species in Well Water Samples


                                                                                                                              N03
                                     1.5  . ......................................................... ..................................  NI-14 ................
                                                                                                                              DIN







                                          . ............................................................. ..........................................................................................
                           Z E

                           CO)
                           0
                           z
                                     0.5   . ........................... ...................  .................      ..................






                                       0 -

                                                                                 2                        3                         4
                                                                                       RB WELL


                                                                                   FIGURE 29B
                                                                                       SITE RB
                                                              Mean P04 in Well Water Samples
                                     0.6



                                     0.5                             .......................................................................................................................................

                                                                                                      P04



                                                                          ...............................................................................................................................




                               E
                                                                     .......................................................................................................................................


                               0



                                                                     .......                  ........                  ....  ..........................................-





                                     0.1                             .......                  ........                  .......



                                        0

                                                                                   2                        3                         4
                                                                                         RB WELL












                                                                                                                                                                                           FIGURE 29C
                                                                                                                                                                                                   SITE RB
                                                                                                             Water Table Depth in Relationship to Bottom of EDA
                                                                                                                                                                         March 95 to March 96
                                                                                                                                        [Bottom of EDA assumed to be 2' BGS]
                                                                                                 0
                                                                                                                                                                                                                                                                                 --w--REH2
                                                                                                                                                                                                                                                                                                        REH3
                                                                                                 1            ........................................................................... ......................... .........................         ......................              A REH4                               ........-

                                                                                     cc

                                                                                                                                                                                               Bottom of EDA
                                                                                                 2      -


                                                                              P 0
                                                                              w                  3           . ..............   ......  ........................   ........................ ......................... ......................... .........................        ......................     . .....................
                                                                                                               %
                                                                                     0                                %
                                                                                                                          %
                                                                                                 4            .....................        ....................      ............      -d-0           . ............. .............           A.                     ..........  .... ....        .......   .............
                                                                                                 5                                                                                           26" Se                        aration
                                                                                                       LO                          LO                        LO                          LO                         LO                         U)                          LO                          LO
                                                                                                                                   CD                        CY)                         0                          M                          a)                          M                           M
                                                                                                                                                              C@                                                                               -L                            6)
                                                                                                        cc                                                                                                                                      :3                                                                                  Ca
                                                                                                                                                     ............    ............












                                                                                                                                                                                                            DATE














                                                                                                                                                               FIGURE 29D
                                                                                                                                                                       SITE RB
                                                                                               EDA Treatment with respect to Groundwater Depth
                                                                                                                                 December 1994 to March 1996
                                                                               12                                                                                                                                                                                                      0

                                                                                                                                                                                                                                                                                 F


                                                                               10      . .................  .................................... .................. ................. ................. ................. ................. ................................... ...............
                                                                                             .................................................... ................. ................. ................. ................. ................. ................. ................. .............. ..-


                                                                                                                                                                                                                                                                                             (D


                                                                                                                                                    ......... ...............   .............. ................. ................ ................. ................ ........... ....
                                                                0                8     . .................  ................ ................ ........
                                                                                                                                                                    B40m                    of ED*
                                                                                                                                                                                                                                                                                       2
                                                                                                                                                                                                                                                                                                    Cr
                                                                                                                                                                                                                                                                                             0
                                                                       CO        6     . .................  ................. ................ ......                                       ---- ------------- ***'"* .............. .                  ...... *- .......
                                                                                                                                                                            N03
                                                                F. E                                                                                                                                                          I                                                              CL (D
                                                                                           ................. ................                                                                                                                                           ..........
                                                                                                                                     ........ ......                        NH4             ...                                                    -------------                       3
                                                                                                                              %                                                                      --m--H20TBL                                                                             Cn
                                                                CV3              4     . .................  ..........................   .. ....  -                         P04             .... ...                                               .............. .... ...........           C      =r
                                                                0
                                                                z
                                                                                                                                                                                                                                                                                                    (D
                                                                                             ................ ................ ................. .....                          ..............   .............. ............                                                                 (D (D
                                                                                                                                                     W-' -**      ............ .                                                     ........... --------P  ---------  .....v......-   4
                                                                                            ................................... ................                .............. ..                      ........   0                     % 'r
                                                                                 2                                                           . .............                                                   ........ dP ...... ...... %........ ..... 0......... . .........



                                                                                 0                                                                                                                                                                                                     5
                                                                                                        U)                LO             U)              U)                 U*)             U)            LO              U)                LO              Ln               (0
                                                                                                        a)                M                              (D                 CY)             CD                                              CP              CP               CD
                                                                                                                                                                            I                             a)              CO
                                                                                                                                                                            C
                                                                                                                          as                             Ca                 =3
                                                                                                        U-                                                                  -5                                                                              0
                                                                                                                                                                                   DATE
                                                                                                                                                                                                                                                        . . .......
                                                                                                                                                                                                                              _OTBL
                                                                                                                                                                                                                            . . ..... .                     -----
                                                                                                                                                                                                                                        -------- ---- -----------








                                                                                      FIGURE 30A
                                                                                          SITE RH
                                                            Mean N-species in Well Water Samples



                                          7       -------                     ...........................................  ...............................................................
                                                                     N03
                              z                                      NI-14
                                          6                          DIN


                                                                                                        ............................  .....  ........
                                          5   . ....................... --------

                              Z E                                                                                                . ........
                                          4      ...... ................  ----------


                              cn
                              0           3             ---------- ........                     ......
                              z


                                          2        .......           .........        ........................ ...... ........  -----    ........



                                                                   ...............    .....    ........   ......               .....




                                          0-

                                                         4                   5                   3                   2
                                                                                          RH WELL


                                                                                      FIGURE 30B
                                                                                          SITE RH
                                        2.5                      Mean P04 in Well Water Samples



                                          2   . ...................................... ...............................I............................................................................

                                                                                                                P04


                                  _j     1.5  . ...................................... .............................................................................................................
                                  E

                                  0
                                              . ...................................... ............................................................................................................





                                         0.5  . ...................................... ............................................................................
                                          om

                                                         4                    5                   3                    2
                                                                                           RH WELL












                                                                                                                                                                               FIGURE 30C
                                                                                                                                                                                       SITE RH
                                                                                                     Water Table Depth in Relationship to Bottom of EDA
                                                                                                                                                        March 1995 to May 1996
                                                                                                                              [Bottom of EDA assumed to be 2' BGS]
                                                                                  0
                                                                                                                                                                                                                                                                                                                                            RH 1
                                                                                                                                                                               Bottom of EDA                                                                                                                                                 RH2
                                                                                  2                                                                                                                                                                                                                                     --A--RH3
                                                                                                                                                                                                                                                                                                                                             RH4
                                                                      Ca
                                                                                                                                                                                                                                                                                                                       --v--RH5D
                                                                4) CO             4               . ...........    .................... .................... ...                                                                                    ................ .........   ...............................
                                                                                                                                                                .........  -34
                                                                4)
                                                                                                                                                            I                  j 48" @epar4tion                                                I                     I                    I
                                                                P 0
                                                                                  6

                                                                Uj



                                                                                                          ....... ........   ......... .................... ..........    ....... ...................   ... .............. ...   .............. .................... ...................     ..................
                                                                                  8      . .............

                                                                                                                                                                                                                                                                       10


                                                                               10              .................. ....................
                                                                                                                                                        .... ..................   ...................  ................... .................... .................... .................... ....................  -



                                                                                        LO                   LO                    LO                   U)                   LO                  U')                   LO                   w                    CO                   (0                    (0
                                                                                                                                   CD                   CD                                                                                                       0)                   Cn                    Cn
                                                                                                                                                        &                                                                                                        LL                    LL
                                                                                         0                    Ca                                        :3                   75                   :3                   0                                         CO                                          Ca
                                                                                                                                                        -D                                                             z                    U-
                                                                                                                                                                                                                                                                                                                   lu


















                                                                                                                                                                                             DATE













                                                                                        FIGURE 30D
                                                                                            SITE RH
                                                     EDA Treatment with respect to Groundwater Depth
                                                                          December 1994 to May 1996
                                             1 4                                                                                                           0


                                             1 2  . ..................  ................................................................................................................................................................................1

                                                                           N03                                                                             2
                                    0        1 0            ......         NH4       ........................................................................................................................................
                                                                           P04                                                                             3

                                                                                     ........................................................................................................................................
                                              8   . ..... ................I                                                                                         Cr
                                                                                                                                                                 0
                                        CM                                                                                                                 4
                                    z E                                                                                                                          CL M
                                              6
                                                                                                                                                           5     Cn
                                    CO
                                    0         4   . ..........  .............................................................................................................................................................................................
                                    z                                                                                                 b                    6
                                                                                                                -0-H20TB@1
                                                                                          4000"
                                                                                            .....A                           -;iia ..........................=...........
                                              2     ------------- ...................... ................ . ..................................................
                                                                                                                          P                                7


                                              0                                                                                                            8
                                                  Iq      LO     LO      to     LO     Ln      LO      LO     LO      LO
                                                  CY)     0')    CD      CD
                                                  (D       (D    co       a     co      =3      :3     :3      :3      0      CD      co      CL     W
                                                  Q       U-                                           -3     ---)    z       LL
                                                                                                 DATE







                                                                    FIGURE 31A
                                                                       SITE RP
                              3.5              Mean N-species in Well Water Samples

                                                                                                    N03
                                                                                                             ...........................
                                    3. ............................................................................ NH4
                                                                                                    DIN

                                                                                                             ...........................
                              2.5   . ..................................................  ................................ ............


                        ad                                  .... ........ .............I............................................................................
                                    2. .......................................N
                                                         N
                                                         N
                           cm                            N
                           E                             N                           .................................................... ............
                              1.5   . ................... ......... ........N
                                                         N
                                                         N
                        0                                N                ...        ......................................................... .......
                        z           1. ............ .......N.... ........
                                                         N



                                                                                                      ----------- *'*'** ..........
                              0.5                                 ........ ...       .......



                                    0

                                         2         4        1        5          3    RP/C 1 RP/C 2 RP/C 3 RP/C 4
                                                                         RP WELL




                                                                    FIGURE 31B
                                                                       SITE RP
                                                     Mean P04 in Well Water Samples
                                    2

                                                                                                      POTI
                                                     ................................. ................................................ .................................................
                                1.5 - ---------------------------



                           .j
                           tm
                           E        1. ..... --------       ...........     .............................................................................. ...................
                           0
                           A



                                0.5 . ........  .................. .......... ...................... .........
                                                         N




































                                    0

                                          2          4       1         5        3      RP/C I RP/C 2 RP/C 3 RP/C 4
                                                                            RIP WELL












                                          FIGURE 31C
                                            SITE RP
                        Water Table Depth in Relationship to Bottom of EDA
                                    March 1995 to April 1996
                              [Bottom of EDA assumed to be 2' BGS]
                    0
                                                                             --A--RP1
                                           Bottom of EDA                          RP2
                    2                                                             RP3
                                                                                 RP5D
                cc
                                                                             --v--RP4
                                 ............... ........................... ............................. .............................. ..............................
                    4                           epar-@ tion
                         ..................... .............. 34"* .... .... S"
                                           48" Separition
                    6
                0


               w
                @:
                    8 . ............................. ........................... ...........................
                0
                z


                    10 . ............................. ............ ..... ....... .................. ......... ..... .................................................... ............................. ............................



                    12
                      LO      Ul)   LO     U)      LO     Ul)     LO     CO
                      CD      0)    CD             CD     CD
                      Ca      0     cc                                   CL
                                                                         <

                                              DATE












                                                                                 FIGURE 31D
                                                                                     SITE RP
                                                 EDA Treatment with respect to Groundwater Depth
                                          14-                        January 1995 to April 1996                                                0

                                         12 -             ......... .......................................................................................................................................................................-1
                                                                                  Bottom of EDA                                                     W:*
                                                                                                                                               2
                                 0       10 A    .................... ...  ..................................................................................................................................................................
                                 IL
                                 6-d             -                                                                                             3
                                 ad
                                           8  . ......................... ..........  .................................................................................................................................................................
                                                                                                                                                     , Cr
                                 r-v--                                                                                                              0
                                     0)          -                          N03                                                                4
                                     E
                                                                                                                                                    CL M
                                           6  . ........................... ......  NH4  .........................................................................................................................
                                                                  --0- P04                                                                     5    Cp
                                 C*3                                                                                                                    :r
                                 0                               ...................................................................................................................................................................
                                 z         4  . .......... . ..............                                                                         W-ft
                                                                                                                                               6       (D
                                                                                                                                                       (D
                                           2  . ...............................          H20TBLI      ...... liw- ----- ................ ............ ............7
                                              .L--- -                                 Q   -   I @- :@l         Nv-;
                                           0  b-@: @                9@@@E                                      - 0-                     --G    8
                                              LO      LO      LO      LO        LO     LO      LO       LO      LO      LO       LO       (D
                                              0)      0)              0)
                                              cc               Ca               CO      Cz                                                 CL
                                                      U.              <                                                 z                 <

                                                                                          DATE









                                                                              FIGURE 32A
                                                                                 SITE RC
                                    14-                Mean N-species in Well Water Samples
                                                                                                           N03
                                    12   . ............. .............................................................................  NI-14  ............................................-
                                                                                                          DIN

                                    10   - ------------- ............... ..................................... ...........................................................................................



                                      8  . .......     ............... ..................................... ...........................................................................................


                             Z E
                                                       .........  .........................N
                                      6  . .......                                 ..... ...........................................................................................
                                                                                 N
                             cq
                             0                                                   N
                             z        4  . .......     ...        .........      N       ............................ .......... --------------------------------------------------



                                                                              ---        . .....               .....................................................
                                      2                ...        .........                  ...............................



                                      0

                                                 4           1          2           3       RP/C I RP/C 2 RP/C 3 RP/C 4
                                                                                    RC   WELL



                                                                              FIGURE 32B
                                                                                 SITE RC
                                                             Mean P04 in Well Water Samples
                                      2




                                                                                             P04
                                    1.5                ......................... .......              ....................................................................




                                 E
                                                       ...        ...         ...............................................................................................................

                                a
                                 CL



                                    0.5                ...        ...         ...        ...          ...................................................................





                                      0

                                                 4           1          2           3       RP/C 1 RP/C 2 RP/C 3 RP/C 4
                                                                                   RC WELL












                                                                                            FIGURE 32C
                                                                                                SITE RC
                                                     Water Table Depth in Relationship to Bottom of EDA
                                                                                March 1995 to April 1996
                                                                   [Bottom of EDA assumed to be 2" B%3oj
                                             0
                                                                                                                                                                                  RCI D
                                             2                                               BOMM Of EDA                                                                          RC2D
                                                                                                                                                                           A      RC3
                                                                                                                                                                       --v--RC4
                                       cc
                                             4   . ............................................. ............  ........
                                                                                                       eparation
                                                                            %                          ................... ....................... ...................... ....................... .......................-
                                                                                 %          48"      5eparalon
                                             6


                                   CL        8      ........... ................... ... .....  ..................... ........... .. ............... .... ... ............  .................... ......................
                                   LUUJ
                                       0    10   . ..................................... ...... ................ . . ................ .................... ..................... .....................  .................. . ......................


                                            12   . ............. ....... .. . ................. ...................... ....................... ...................... ...................... ........ ............. ......................


                                            14
                                                 LO          LO          LO           LO           LO          LO           U)         LO
                                                 a)                                    0)                      a)                                   CD           CD
                                                                                                               6)                                   LL            IL
                                                                          Ca                                                0           (D          as            CL
                                                                                                   7)                       z
                                                                                                    DATE













                                                                                          FIGURE 32D
                                                                                              SITE RC
                                                       EDA Treatment with respect to Groundwater Depth
                                    N03 20         -                          January 1995 to April 1996                                                  0
                                                   . ........................................................................................ ...............................................................................I.. . .... . . .........
                                    NH4      18    .3 ........................... .......................................................................................................... I --m--H20TBL
                                    P04            . ......x ............................................ ...........................................
                                             16    . ............ ..................................  ......... y6ft ............. 6f ... EM .................................... ...............................
                                     N."                                            A'-** ....* ............ *-OM
                                     le            -                                                                                                      2    CO
                                     0       1     . ................... \.- ..................  .........................................T ........................... ........................................ (D
                                     CL        4                                                                                                               F(D
                                     b..d          . ..................... ................./... ......  ..........................................  ...........................  ................................... ........
                                                                    ......... ......... . .....                               A                        - 3
                                     ad      12    . .......................     *. ... .. ..........I......................... ................ ... ............................-..... ..
                                                   . ....................... ........ ........... ... ........ . .................... ... ................................I..... ...  Cr
                                                                                       . ...................................                                   0
                                                                                                              / NY            I\
                                             10    -                                                                                                           0
                                                                                                                                                          4    C
                                         E         . ..............V    ................... .. ............ ................... .......... ................ ........... .....
                                     z                     ................. ..
                                                                                       ......                                                                  CL (D
                                               8   - ...............................................I....... .....  ......../...........\ \.............................../
                                                     .....................    ....... ....... . .... .VI      ............ ........ . ......  ........................... ........5(n-2*
                                                                                                                                                                    :r
                                     z                                                                        ........... ..... ................. \x .................... .........
                                                                                                                                                               r
                                                                                                  ............ ......  .. . . .
                                                               ......            .......
                                     0         6   . ................... ..   ...... .
                                                                              I     -            %                                                        6
                                                     ........................ ...........  . . ... .. ......  ......................... .. ..... ...........   (D
                                               4

                                                     ..................... ................. ....             ........................ ....... ....... . . ..... ...........
                                                                                                                              OL
                                               2   . ..... ............. ......  ......... .. ...... ................................... tv OL ....... .....  ft - ---- -------- .. ...... 1W
                                                                                                                       ...... ....

                                                   . .......... ... ................. ..... ... .........................M .............  ....... .... ....................................... .... ..............
                                               0   -A                         -     -                  . . ..... *'**'***"**                              8
                                                   LO      LO     LO          LO    LO      LO      LO        LO       LO     LO     LO      (0        CO
                                                                                    M       CD      a)                                       a)
                                                                                                                                             1
                                                           6                                                           6)                     %-
                                                   as      (D      cc                       CO                         =3     0      CD       Ca
                                                           UL                 <                                        <      z                        <
                                                                                                    DATE
                                                                                                                       ..... ..... @OL









                            Figure 33. Geometric mean concentrations of dissolved inorganic nutrients in surface
                            water from sites along transects of creeks and harbor sites around Hampton Harbor:
                                                                          6/95-6/96.


                          2.5-,




                            2-                                                                                     El N03

                                                                                                                   0 NH4

                          1.5-                                                                                     0 DIN

                                                                                                                   El P04


                            1





                          0.5-





                            0
                                10    11    12     4     7     5     3           8     9           6     14    1     2     13    15    16
                                               Mill Creek transect             Farm Brook                    Harbor sites










                           Figure 34. Geometric mean concentrations of bacteria in surface water from sites
                            along transects of creeks and harbor sites around Hampton Harbor: 6/95-6/96.


                       700-,



                       600-

                                                                                                    El Fecal colifonns
                       500-                                                                         0 E. coli

                                                                                                    N Enterococci
                       400-
                                                                                                    S C. perfringens


                       300-



                       200-



                       100-



                         0
                             10   11    12    4    7     5     3          8    9          6     14    1    2    13    15    16
                                           Mill Creek transect           Farm Brook                 Harbor sites












                                                        FIGURE 35.
                               Geometric mean concentrations of fecal coliforms, E. coil,
                                        and C. perfringens in soil cores taken from
                                   just above the water table along a transect at WRH,
                                                      November 1995
                           107

                                          Fc                N
                           106                                . .......................... ......................... ..........................:
                                          Ec
                                          Cp
                                              ................ ..............





                                . ........................ ............... . ............. . ................ ........  ......................... ...............
                           105
                                                                                         IN

                           104 . ..........................
                       z
                                                                                         IN
                                                    . ................ . ................ . ............... . ...............
                          1000 --: ..............          "INN



                                                . . ................ . ................ . ............... . ...............
                           100 . ................



                            10    . . .

                                  Control    EDA         1         3         9         27
                                                           CORE
                                             1, 3, 9, & 27 9  1 distance (in feet)
                                                  downgrXeunat of EDA edge.



                                                        FIGURE 36.
                                  Geometric mean concentrations of C..perfringens in
                              soil cores taken above the water table in 3 transects at REH
                                                      December 1995

                            106 -


                            105 -                   .............. ..............  .............. ............... ............... ................ I-

                        C30


                        z
                        Q.                             N
                            104       . ............... . .............. .............. ...............  ...............
                                                 IN










































                           1000

                                   1-1   1-3   1-9   2-1   2-3   2-9    3-1  3-3   3-9 CTRL

                                                       TRANSECT-CORE
                                            1, 3, and 9 equal core distance (in feet)
                                                     away from EDA edge

























                                                                  limillimilmll
                                                                   3 6668 14101 6891