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

















































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                      Funds for this project were provided by the Department of
                      Environmental Regulation, Office of Coastal Management using
                      funds made available through the National Oceanic and
                      Atmospheric Administration under the Coastal Zone
                      Management Act of 1972, as amended.














                                  LAKE WORTH LAGOON


                                  NATURAL RESOURCES INVENTORY
                                               -AND-
                                  RESOURCE ENHANCEMENT STUDY



                                  DECEMBER 15,1990



                            DAMES & MOORE

                                      IN CONJUNCTION WITH
                                      PALM BEACH COUNTY
                  DEPARTMENT OF ENVIRONMENTAL RESOURCES MANAGEMENT







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                                              TABLE OF CONTENTS


              SECTION                                                                             PAGE



              1.0    EXECUTIVE SUMMARY                                                              1

              2.0    INTRODUCTION                                                                   5
              3.0    LITERATURE/DATA SEARCH - DATABASE DEVELOPMENT                                  7
              4.0    FIELD STUDIES AND MAPPING                                                      8

              5.0    NATURAL RESOURCES INVENTORY                                                    9

                     5.1    HISTORY OF LAKE WORTH LAGOON                                            9

                     5.2    GOVERNMENTAL JURISDICTION BOUNDARIES                                    13

                     5.3    LAND USE                                                                14

                     5.4    BATHYMETRY                                                              15

                     5.5    HYDROLOGIC AND HYDRAULIC CHARACTERISTICS                                16

                     5.6    SEDIMENT CHARACTERISTICS                                                18

                     5.7    POINT AND NONPOINT SOURCE OUTFALLS                                      20

                     5.8    SHORELINE CHARACTERISTICS                                               23

                     5.9    SUBMERGED NATURAL RESOURCES                                             24

                     5.10   KNOWN OCCURRENCES OF FISH                                               27

                     5.11   ENDANGERED, THREATENED AND RARE SPECIES                                 29
                            AND SPECIES OF SPECIAL CONCERN

                     5.12   MARINAS AND DOCKS                                                       31

                     5.13   WATER QUALITY                                                           33
                            5.13.1 Water Chemistry                                                  33
                            5.13.2 Sediment Chemistry                                               36
                            5.13.3 Benthic Fauna                                                    37

              6.0    HABITAT RESTORATION AND ENHANCEMENT                                            38

                     6.1    PROJECT TYPES                                                           38

                     6.2 PROJECT AREAS                                                              41

                     6.3 PROJECT EVALUATION                                                         43

              7.0    NATURAL RESOURCES EVALUATION & RECOMMENDATIONS                                 45




  I
  1     8.0 APPENDIX
            8.1 REFERENCES/LJTERATURE DATABA.SE CONTENTS
  1         8.2 SEDIMENT GRAIN SIZE DATA TABLES (A-F)
  1         8.3 MUNYON ISLAND PLANT UST
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                           LIST OF TABLES AND FIGURES



         TABLE



         1.  LAND USE

         2.  HYDROLOGICAL FACTS

         3.  NONPOINT SOURCE OUTFALL SUMMARY

         4.  SHORELINE CHARACTERISTICS

         5.  SEAGRASS COVERAGE

         6.  LAKE WORTH AREA FISH

         7.  FISH COLLECTED IN LAKE WORTH LAGOON

         8.  ENDANGERED, THREATENED AND RARE SPECIES
             AND SPECIES OF SPECIAL CONCERN

         9.  PLANTS OF GEMINI BOTANICAL GARDENS

         10. MARINA AND BOAT RAMP SURVEY

         11. TROPHIC STATE INDEX CALCULATIONS

         12. TROPHIC STATE INDEX SUMMARY

         13. FECAL COLIFORM SUMMARY

         14. HABITAT RESTORATION AND ENHANCEMENT PROJECTS SUMMARY

         15. PROJECT EVALUATION CRITERIA

         16. PROJECT EVALUATION MATRIX










         FIGURES



         1.  DREDGED AND FILLED AREAS

         2.  GOVERNMENTAL JURISDICTION BOUNDARIES

         3.  LAND USE

         4.  BATHYMETRY

         5.  HYDROLA)GIC AND HYDRAULIC CHARACTERISTICS

         6.  SEDIMENT CHARACTERISTICS

         7.  POINT AND NONPOINT SOURCE OUTFAILS

         8.  SHORELINE CHARACTERISTICS

         9.  SUBMERGED NATURAL RESOURCES

         10. KNOWN OCCURRENCES OF FISH

         11. ENDANGERED, THREATENED AND RARE SPECIES
             AND SPECIES OF SPECIAL CONCERN

         12. MARINAS AND DOCKS

         13. WATER QUALITY STATIONS

         14. HABITAT RESTORATION AND ENHANCEMENT PROJECT AREAS











                                             1.0 EXECUM S


              Lake Worth Lagoon is recognized as one of Florida's important estuarine lagoon systems.
              Continually impacted by an expanding population since the late eighteen hundreds, Lake
              Worth Lagoon must be protected through implementation of a comprehensive management
              plan if its unique natural resources are to be preserved and maintained. The first step in
              the formulation of a management plan is the survey, inventory and analysis of existing
              natural resources, literature and data contained herein.



              Over two hundred sources of literature and data on the natural resources of Lake Worth
              Lagoon have been identified and organized in a computerized database system. Information
              identified through the literature and data search has been further supplemented with field
              studies in order to produce a series of 14 maps which geographically illustrate the status of
              various natural resources and characteristics of Lake Worth Lagoon. This report includes
              tables, maps, and supporting information that describes the following:


               1. Dredged and Filled Areas: Lake Worth Lagoon has been transformed from a freshwater
              lake to urban estuarine lagoon in the past 100 years by continual man-induced impacts
              associated with development of the area. Major alterations of Lake Worth Lagoon have
              been made by the filling of previously submerged lands and dredging of submerged lands
              to maintain channels and inlets.



               2. Governmental Jurisdictional Boundaries: Portions of Lake Worth Lagoon are within
              the boundaries of unincorporated Palm Beach County, thirteen municipalities, a port
              authority, and an inlet district.


               3. Land Use: Six zoning designations and major land uses are distributed along Lake
              Worth Lagoon; Residential (72.5%), Public (17.5%), Commercial (8.1%), Industrial/Utilities
              (1.0%), Water (0.8%) and Community Service (0.1%).








               4. Bathymetry: Water depths within Lake Worth Lagoon are variable (< 1.0'-30.0'
              NGVD). Numerous areas have been dredged for navigation. T'he Atlantic Intracoastal
              Waterway is maintained at -11.0'(NGVD), the Lake Worth Inlet and Port of Palm Beach
              are maintained at -35.0'(NGVD), and the South Palm Beach Inlet has design depth of -
              6.0'(NGVD).


               S. Hydrologic and Hydraulic Characteristics: Lake Worth Lagoon receives freshwater
              input from rainfall, which averages 5.4'/year, and groundwater inflows estimated at 281-330
              cfs. Drainage from 3 major canals (C-16, C-17, and C-51) contributes considerable amounts
              of freshwater into Lake Worth Lagoon. Salinity variations in the Lake correspond closely
              to the seasonal variations in the freshwater inflow. Major tidal influences occur via the Lake
              Worth and South Lake Worth Inlets. '17he West Palm Beach Canal (C-51) controls the
              flushing characteristics of the Lake more  than tidal and wind driven forces; its flow direction
              is 75% northward and 25% southward. Lantana Bridge is the area where the tidal influence
              from the inlets is most reduced. The maximum residence time of the water body between
              the two inlets is about 28 tidal cycles (14 days).


               6. Sediment Characteristics: Sediment grain sizes and types, along with occurrences of
              rock outcrops throughout the lagoon have been identified. Data from five sediment studies
              conducted from 1970 - 1989 are presented on a map and in tabular form.


               7. Point and Nonpoint Source Outfalls: During the 1950's an estimated 10 million gallons
              per day (MGD), of raw sewage was discharged directly into Lake Worth Lagoon. By 1970,
              most sewage was treated to secondary standards, but the discharge had increased to 18.49
              MGD. During the past twenty years discharges into Lake Worth Lagoon have been greatly
              reduced through the use of alternative effluent disposal methods. Concurrently stormwater
              discharge has increased over the years. A total of 381 stormwater outfalls and 4 point
              sources were documented in this survey.




                                                            -2-










              8. Shoreline Characteristics: Lake Worth Lagoon's shoreline is approximately 70 linear
              miles (91.5 miles including canals), much of which has been altered through the years. 87%
              of the original shoreline mangroves have been eliminated resulting in mangroves along only
              19% of the shoreline. Bulkheads comprise approximately 65% of the shoreline.


               9. Submerged Natural Resources: Lake Worth Lagoon is host to valuable plant and
              animal communities such as seagrass beds (6 species), macroalgae (10 species), oyster
              habitat, corals and sponges. Seagrasses cover approximately 35% of the total submerged
              area of Lake Worth Lagoon. Tliree main areas of the lagoon support extensive seagrass
              beds. Of the total seagrass area of 2110 acres, the percentages of area dominated by various
              seagrass species are: Halodule wrightii (51%); Halophild decipiens and Halophila     johnsond
              (25%); and a mixed assemblage of all three species (19%). Syfingodiumfififonne (1%) is
              primarily found near the Lake Worth Inlet area and a major Thalassia testudinum bed (2%)
              is located east of Big Munyon Island. Halophild johnsond has been designated by the Florida
              Natural Areas Inventory as a species of limited distribution and recommended for inclusion
              on the State list of threatened plant species.


              10. Known Occurrences of Fish: 261 species of fish are known to occur in Lake Worth
              Lagoon and in the vicinity of the inlets. 195 species have been collected within Lake Worth
              Lagoon. The fish collection data from six studies conducted from 1962-1985 are presented
              on a map of the lagoon.


              11. Endangered, Threatened and Rare Species and Species of Special Concern: 13 plant
              and 27 animal species known or likely to naturally inhabit Lake Worth Lagoon are recorded.
              All known protected plant species occur in either in John D. MacArthur State Recreation
              Area or Gemini Botanical Gardens.



              12. Marinas and Docks: The survey indicates that Lake Worth Lagoon has storage/dock
              facilities for approximately five thousand boats (2558 marina slips and 2156 dry storage racks

                                                           -3-








              and hundreds of private docks). The area currently accommodates 47 marinas, and 8 public
              boat ramps.


              13. Water Quality: Water quality data has been collected in Lake Worth Lagoon since the
              late 1960's. Data indicates that the lagoon is a moderately polluted estuarine system. A
              trend analysis indicates water quality either remained fairly constant or slightly improved
              over a fifteen year period. Analysis of sediments for heavy metals and organic compounds
              indicate a system which chronically receives runoff from urban development.


              14. Habitat Restoration and Enhancement: 20 habitats along Lake Worth Lagoon have
              been selected, identified and evaluated in order to establish a prioritized list of areas in
              need of restoration/enhancement.        Five project types for habitat restoration and
              enhancement to be implemented are - Shoreline and Wetlands Creation, Artificial Reef
              Creation, Shoreline Stabilization (rip rap), Seagrass and Oyster Bed Creation and Public
              Information and Education.



              Analysis of the available information regarding Lake Worth Lagoon indicates that water
              quality and habitat resources have been drastically impacted by urbanization of the area
              over the past one hundred years. Fish and wildlife habitat has declined due to dredging and
              filling activities. However, productive areas of seagrass beds, shoreline mangrove
              communities and other habitat components remain and are utilized by a great number of
              fish and wildlife species. These areas need to be protected and preserved, while other
              declining habitats need to be enhanced or restored to their natural state.


              The information in this report is a valuable basis for development of a comprehensive
              management plan for Lake Worth Lagoon. The report provides an analysis of resource
              trends, as well as recommendations for habitat enhancement projects which will be
              undertaken by Palm Beach County's Department of Environmental Resources Management
              through use of County Vessel Registration Fee Ordinance revenues.



                                                          -4-












                                                2.0 INTRODUCrION



              The coastal lagoons and estuaries of Florida are extremely important resources which
              benefit all of us in many ways. As distinct geographic features they are the focal point of
              life along the coast. Our cities are built along their shores, and we utilize their waters for
              recreation and commerce. The fish and wildlife resources which make Florida unique also
              depend upon these natural systems for their existence. Seventy percent of our recreational
              and commercial fish species are dependent upon coastal estuaries at some point in their life
              cycle (Harris et. al., 1983).


              Lake Worth Lagoon is located in Palm Beach County along the urbanized southeast coast
              of Florida (Location Map). Historically, Lake Worth Lagoon been one of the most abused
              and least protected coastal water bodies in Florida. Since the first settlers arrived in Palm
              Beach County in the late eighteen hundreds, Lake Worth Lagoon has been subjected to a
              constant onslaught of environmentally degrading activities including channel dredging,
              shoreline bulkhead construction and filling, causeway and bridge construction, dock and
              marina construction, industrial waste discharge, sewage disposal, stormwater runoff, canal
              development, port development, mosquito control, and power plant construction and
              operation. While the cumulative impact of these activities over the past one hundred years
              has significantly altered Lake Worth Lagoon from its previous character and diminished its
              value as a healthy estuarine ecosystem, significant regionally important natural resources
              remain. The fish and wildlife values, water quality, and recreational values which remain
              must be identified, evaluated, and protected to assure their future viability. Proper
              management of the Lake Worth Lagoon System will lead to protection and enhancement
              of this important coastal resource.


              The Indian River Lagoon located to the north, and Biscayne Bay located to the south of
              Lake Worth Lagoon have been subject to numerous studies and management activities in
              recent years. However, Lake Worth Lagoon has received relatively little attention by

                                                          -5-


























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                                                          LOCATION MAP OF LAKE WORTH LAGOON








             environmental agencies. For this reason, the Palm Beach County Department of
             Environmental Resources Management, (ERM) initiated this Natural Resources Inventory
             and Resource Enhancement Study of Lake Worth Lagoon.


             This study was funded by a Federal Coastal Zone Management Grant administered by the
             Florida Department of Environmental Regulation, Office of Coastal Management. ERM
             was responsible for conducting the literature search, and field studies. Dames & Moore was
             contracted by ERM to organize and analyze data, produce maps, and generate the report.


             The objectives of this project were to:
                    0      Identify significant research, data and literature regarding the natural
                           resources of Lake Worth Lagoon.

                    0      Identify and map important environmental characteristics of Lake Worth
                           Lagoon.

                    0      Analyze the information and maps to determine environmental trends and
                           conditions.

                    0      Identify and evaluate habitat restoration and enhancement projects which can
                           be undertaken by ERM.


             The findings of this study will ultimately be utilized by ERM as the basis of a comprehensive
             Lake Worth Lagoon Management Plan designed to improve and protect Lake Worth
             Lagoon as an important coastal natural resource. The report will guide ERM in its
             selection of Lake Worth Lagoon habitat restoration or enhancement projects undertaken
             with revenues produced by the County Vessel Registration Fee Ordinance.


             Ibis study was completed through a four task approach:


                    1. Literature Search and Database Development
                    2. Field Studies and Mapping
                    3. Natural Resources Inventory and Analysis
                    4. Identification of Potential Habitat Restoration and Enhancement Projects.


                                                         -6-










                     3.0 LITERATUREIDATA SEARCH AND DATABASE DEVELOPME


             A detailed literature and data search was conducted by ERM staff in an effort to locate
             information related to natural resources of Lake Worth Lagoon. Sources of literature
             investigated in the search include:


                    Area Planning Board of Palm Beach County
                    Florida Atlantic University
                    Florida Department of Environmental Regulation
                    Florida Department of Natural Resources
                    Municipal Comprehensive Plans
                    Palm Beach County Library
                    South Florida Water Management District
                    University of Miami
                    University of Florida


             References were organized in a DBASE software program to provide a manageable and
             expandable database. Entries include title, author, reference number, date of publication,
             key words, location of publication, and abstract. The entries can be retrieved by author,
             reference number or key word. The database currently includes over two hundred citations,
             and is available for use through ERM. A complete list of references contained in the
             database is included in the appendix of this report (Appendix 8.1).











                                                        -7-













                                      4.0 FIELD STUDIES AND MAPPING



             Field studies were conducted during the spring and summer of 1990 by ERM. The studies
             were structured to produce resource baseline information that can be presented on map
             overlays of Lake Worth Lagoon. Field study methods are briefly discussed in the sections
             of the report which precede each map overlay.


             The information produced through field studies and the literature/data search is presented
             as overlays to a base map developed from United States Geological Survey, (USGS)
             quadrangle maps scaled at 1 inch = 2000 feet. Overlays include:


                   Dredged and Filled Areas
                   Governmental Jurisdiction Boundaries

                   Land Use

                   Bathymetry
                   Hydrologic and Hydraulic Characteristics
                   Sediment Distribution
                   Point and Nonpoint Source Outfalls
                   Shoreline Characteristics
                   Submerged Natural Resources
                   Known Occurrences of Fish
                   Endangered, Tbreatened and Rare Species and Species of Special Concern
                   Marinas and Docks

                   Water Quality Stations
                   Habitat Restoration and Enhancement Project Areas


             The maps were produced by AUTOCAD software, and are presented in match line format
             in this document (Map Key). Full size maps with color overlays are available for review at

             ERM.


                                                       -8-









                                                             LEGEND -A





                                                                          -B



























































                NOTE:


                THE NORTHERN BOUNDARY OF THE STUDY AREA
                IS LITTLE LAKE WORTH.

                THE SOUTHERN BOUNDARY OF THE STUDY AREA
                IS THE OCEAN AVENUE BRIDGE, BOYNTON BEACH.
              t
                       P Im Beach County
                       Dapu.Am.,t of            LAKE WORTH LAGOON                                      D&M JOB NO.
                       ENVIRONMENTAL                                                                  20335-001-049
                       RESOURCES                        MAP KEY
                       MANAGEMENT            1                             -1                      1











                            5.0 NATURAL RESOURCES INVENTORY AND ANALYSIS



              5.1 HISTORY OF LAKE WORTH LAG00


              Lake Worth Lagoon is a narrow elongated lagoon bordered on the west by the Atlantic
              Coastal Ridge and on the east by a barrier island or peninsula. The barrier island was
              formed as part of an offshore bar during the late Pleistocene (120,000 years B.P.) when sea
              level was elevated. As sea level dropped during the glacial age the offshore bar became
              partially lithified. During the last rise in sea level the present day barrier island and narrow
              lagoon was established. The sea reached its present level about 6000 years ago, and the
              Florida Peninsula emerged in approximately its present shape. Sea levels oscillated over the
              last 6000 years changing the shape of the shoreline. Ile closing or opening of inlets,
              followed by the creation of brackish or freshwater conditions are common events in narrow
              coastal lagoons like Lake Worth Lagoon. During modem times Lake Worth was first noted
              on an 1830 map as a freshwater lake with drainage from a swampy area along the western
              edge (Pierce, 1970).


              Florida pioneers first came into contact with Lake Worth during the Seminole Indian wars
              of the mid-eighteen hundreds. In fact, Lake Worth is named after Brigadier General
              William Jenkins Worth, an important military figure of that era. The Seminole Indians
              which had settled in the area at that time called the lake "Hypoluxo", which meant "water
              all around, no get out". This was a fitting name, as Lake Worth at that time was a
              freshwater lake with no permanent connections to the ocean, and no significant outflows or
              surface water inflows.



              The barrier island to the east (Palm Beach) separated Lake Worth from the Atlantic Ocean.
              Extreme high tides and waves, high lake water levels and storms occasionally caused the
              formation of small temporary inlets. To the west, a sand ridge separated the lake from the
              mainland, which at the time consisted mostly of sawgrass marsh. The lake was also isolated

                                                           -9-









              from the Loxahatchee River to the North, and Hillsboro River to the south by sand ridges
              which connected the mainland to the barrier island at each end of the lake.


              Historically, only three natural islands existed in Lake Worth. Big and Little Munyon Islands
              located in the northern part, and Hypoluxo Island located in the southern part of the lake.
              Vast freshwater marshes surrounded the lake, and freshwater grassbeds grew within the lake.
              The main sources of water for the lake were direct rainfall and groundwater inflow from the

              west.



              The first settlers came to the shores of Lake Worth in the 1860's. They immediately began
              the changes known as progress that continue to this day. Several early attempts were made
              to create navigable inlets from the ocean, and in 1877 construction of a stable inlet was
              achieved. Immediately, the lake began to change to a saltwater lagoon system. During the
              1890's the East Coast Canal Company completed dredging of a navigation canal from the
              north end of Lake Worth Lagoon to the Jupiter Inlet. This resulted in an increase in
              freshwater discharges to the north end of Lake Worth Lagoon via the Loxahatchee River.
              Also during this decade developers began filling the wetland edges of Lake Worth Lagoon,
              an activity that would continue into the 1970's.


              In the early 1900's, the Intracoastal Waterway was completed from the south end of Lake
              Worth Lagoon to Biscayne Bay. By 1915 the Port of Palm Beach created a permanent inlet
              4 feet deep at the north end of Lake Worth Lagoon. The inlet was deepened to 16 feet in
              1925. The dredge spoils were deposited in Lake Worth Lagoon resulting in the creation of
              Peanut Island. In 1917 the South Lake Worth Inlet was created in a failed effort to improve
              tidal circulation and provide flushing to the south end of the lagoon. T'he completion of the
              West Palm Beach Canal and spillway in 1925 resulted in creation of a significant freshwater
              inflow to Lake Worth Lagoon. Its creation also provide the drainage necessary for
              development of the west shore of the lagoon.





                                                         -10-








             By the 1940's the changes in hydrology along with the pollutants contributed by freshwater
             and sewage effluent inflows had resulted in unacceptable water quality in Lake Worth
             Lagoon. In an effort to improve this problem Palm Beach County dredged one half million
             yards of sediment from the mid portion of the lagoon and deposited it on the Atlantic
             beaches of the Town of Palm Beach. Fumes from the decomposition of this organic material
             along the beaches reportedly resulted in paint peeling from houses. By the early 1950's,
             water quality in Lake Worth Lagoon was at its worst as an estimated ten million gallons of
             raw sewage effluent were discharged daily. In response to the problem, a massive cleanup
             effort occurred in the 1960's and 1970's resulting in 70% of the population being served by
             secondary treatment sewage disposal systems.


             During this period, the assault on Lake Worth's shoreline reached its peak. Most of the
             shoreline was extended waterward by dredging and filling activities in the fringing wetlands.
             The newly created upland areas were contained by shoreline bulkheads. Large upland areas
             were created north of the Lake Worth Inlet in the area of Palm Beach Shores. In 1959,
             Munyon Island was enlarged by deposition of dredge spoil. Between 1940 and 1975 an
             estimated 87% loss in mangrove wetlands occurred through shoreline development. As of
             1975, an estimated 275 acres of mangrove forest was all that remained (Harris et.al, 1983).


             Today, Lake Worth Lagoon is connected to the Atlantic Ocean by two permanent inlets.
             The Lake Worth Inlet is 400 feet wide by 35 feet deep, and the South Lake Worth Inlet is
             200 feet wide by 6 feet deep. The Atlantic Intracoastal Waterway channel runs the entire
             length of Lake Worth Lagoon. Eight causeways and bridges connect the mainland to the
             barrier island. Forty seven marinas and hundreds of private docks are scattered along the
             shoreline. Approximately 65% of the lagoon shoreline is bulkheaded. Only approximately
             19% of the shoreline remains fringed by mangroves. Industrial activities include the Port of
             Palm Beach and the Riviera Beach Power Plant. Major freshwater inflows to Lake Worth
             include the Earman River (C-17), West Palm Beach Canal (C-51), and Boynton Beach
             Canal (C-16).








             Ile information for the map of dredged and filled areas (Figure 1) was adapted from the
             W. Vines, 1970 report, Surface Waters. Submergcd Lands, and Waterfront Lands for the
             Area Planning Board of Palm Beach County (Figure 7, Dredged and Filled Areas in Inland
             Waters). This map includes previously submerged lands which have been filled, and
             submerged lands which have been dredged. Major changes have not occurred in the past 20
             years due to environmental regulations which limit dredging and filling activities.


             This brief history illustrates that through man's activities, Lake Worth Lagoon has evolved
             over the past one hundred years from a freshwater lake system to an urban estuarine lagoon
             system in need of management.




































                                                        -12-











                                    LEGEND



                              SUBMERGED LANDS WHICH
                              HAVE BEEN DREDGED




                              PREVIOUSLY SUBMERGED LANDS
                        . . . ....... . ...
                              WHICH HAVE BEEN FILLED










                                     NOTES


                       ADAPTED FROM VINES, W.R., 1970,
                       SURFACE WATERS, SUBMERGED LANDS,
                       AND WATERFRONT LANDS
                       FOR AREA PLANNING BOARD OF PALM BEACH
                       COUNTY, FLORIDA, FIGURE 7














              Palm Beach County                                 D&M JOB NO.
              Department of  LAKE WORTH LACOON                 20335-001-049
              ENVIRONMENTAL
              RESOURCES      DREDGED AND FILLED                   FIGURE
        tMANAGEMENT                AREAS                           I-A



















                                                           LITTLE
                                                           LAKE
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                                                                   NY 0
                                                                    LA

             A                                                                   IJTTLE                                 A'j
                              EARMAN RIVER                                       MUNYON
                                                                                 ISLAND
                       Palm Beach County                                                                  DIIM 1011 No.
                       Department of             LAKE WORTH LAGOON              0     1000   2000        20335-001-049
                       ENVIRONMENTAL
                       RESOURCES                 DREDGED AND FILLED                  SCALE                   FIGURE
                       MANAGEMENT                          AREAS                     (FEET)                    I-B






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                      Palm Beach County
                      Department of           LAKE WORTH LAGOON            0    1000   2000        D&M JOB NO.
                      ENVIRONMENTAL                                      1                        20335-001-049
                      RESOURCES               DREDGED AND FILLED                SCAM                  FIGURE
                      MANAGEMENT                       AREAS                   (FEET )         I       I-C









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                     Palm Beach County                                                       D&M JOB NO.
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                           Palm Beach County
                           Department of               LAKE WORTH LAGOON                  0      1000    2000          D&M JOB NO.
                           ENVIRONMENTAL                                                                              20335-001-049
                           RESOURCES                    DREDGED AND FILLED                      SCALE                      FIGURE     -
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             51 GOVERNMENTAL JURISDICTION 13OUNDARIES


             The submerged area and shoreline of Lake Worth Lagoon is divided between the
             geographical jurisdiction of many governmental units. The extreme north section, including
             Little Lake Worth is in unincorporated Palm Beach County. The Port of Palm Beach
             Authority controls the northern inlet area. T'he southern inlet area is controlled by the South
             Lake Worth Inlet District. The following thirteen municipalities also include portions of
             Lake Worth Lagoon:



                    North Palm Beach

                    Lake Park

                    Riviera Beach

                    Palm Beach Shores

                    West Palm Beach

                    Palm Beach

                    Lake Worth

                    Lantana

                    South Palm Beach

                    Hypoluxo
                    Manalapan
                    Boynton Beach
                    Ocean Ridge


             Figure 2 depicts the current jurisdictional boundaries of each governmental unit. The
             boundaries were determined by review of USGS quadrangle maps, and a map depicting
             municipal boundaries as recognized by the Palm Beach County Tax Appraisers Office.


             Note: The figure begins with Plate 2-B because there is no need for a legend.



                                                       -13-









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                        Department f              LAKE WORTH LACOON               0      1000 2000           D&M JOB NO.
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                  5.3 LAND USE


                  The majority of land adjacent to Lake Worth Lagoon has been intensively developed for
                  waterfront commercial and residential purposes. Single-family homes and multi-unit
                  condominiums with waterfront or canal based marina facilities are very common. Major
                  industrial areas are concentrated near the Port of Palm Beach. Commercial areas are
                  limited and consist mostly of waterfront offices, restaurants and marina facilities. Open
                  spaces are limited to public parks and road right-of-ways. The approximate percentages of
                  shoreline area designated for various land uses are presented in Table 1.


                                                                               TABLE I


                                                                              LAND USE


                                    LAND USE DESIGNATION                                    *LINEAR hflLES                    PERCENT OF
                                                                                                                               SHORELINE


                    Residential Areas                                                              50.75                            72.5%

                    Public Ownership/Public Districts                                               12.25                           17.5%

                    Commercial Districts                                                            5.67                             8.1%

                    Industrial/Utilities District                                                   0.70                             1.0%

                    Community Services District                                                     0.07                             0.1%

                    Water Area/Open Space                                                           0.56                             0.8%

                       The total length of the Lake Worth Lagoon shoreline excluding canals is approximately 70 miles.

                  While not located within the area of this study, it should be noted that the drainage basins
                  surrounding the C-16, C-17, and C-51 canals contain a significant amount of undeveloped
                  lands. The manner in which these lands are developed could have a significant impact on
                  Lake Worth Lagoon, the receiving water for runoff from these canal basins.


                  Land uses along the shoreline of Lake Worth Lagoon are depicted on Figure 3. Zoning
                  designations and land uses have been combined into six categories; public use or ownership,
                  residential, commercial, industrial, special use, and open water areas. Shoreline areas have
                  been classified into these categories based upon zoning designations found on the 1989 Redi
                  Map aerial photographs. Submerged land deed area designations were obtained from the
                  Palm Beach County Property Appraisers Office.

                                                                                 -14-









                                       LEGEND






                 RESIDENTIAL AREAS



                 PUBLIC OWNERSHIP, PUBLIC DISTRICTS, PUBLIC RECREATION AND
                 OPEN SPACE, PUBLIC/SEMI- PUBLIC PLANNED UNIT DEVELOPMENT,
                 RECREATION, RECREATIONAL OPEN SPACE, PRESERVATION/
                 CONSERVATION AREAS, COMMUNITY FACILITY DISTRICT


                 COMMERCIAL DISTRICTS (GENERAL, MARINE, OFFICE, NEIGHBORHOOD,
                 BUSINESS), HOTELS, OFFICE PROFESSIONAL DISTRICT, LAKE FRONT
                 DISTRICT, WEST PALM BEACH LAKE FRONT DISTRICT, WEST PALM
                 BEACH LAKE FRONT CORE DISTRICT, WEST PALM BEACH DOWNTOWN
                 PLANNED UNIT DEVELOPMENT



                 GENERAL INDUSTRIAL DISTRICT, UTILITIES DISTRICT



                 COMMUNITY SERVICE DISTRICT INCLUDING U.S. COAST GUARD STATION



                 WATER AREA/OPEN SPACE



















               Palm Beach County
               Department of    LAKE WORTH LAGOON                     D&M JOB NO.
               ENVIRONMENTAL                                         20335-001-049
               RESOURCES             LAND USE                           FIGURE
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             5A B



             In the late 1800's, Lake Worth was a shallow water body with the majority of its area
             ranging in depth from < 1 to 2 meters. Historical depths have been significantly altered by
             dredging and filling activities which have occurred over the past one hundred years. Lake
             Worth Lagoon currently ranges in depth from less than one foot to thirty five feet.
             Presently, the Atlantic Intracoastal Waterway is maintained at a design depth of -11 feet
             referenced to the National Geodetic Vertical Datum (NGVD) of 1929. The Lake Worth

             Inlet and Port of Palm Beach are maintained at -35 feet NGVD. South Lake Worth Inlet
             has a design depth of -6 feet NGVD. In addition, a number of basins, marinas, access
             channels and canals are maintained at various depths for navigation purposes. Dredged
             material from navigation projects has been deposited in areas of the lagoon resulting in spoil
             islands and shoals. Some areas were dredged as a source for fill material, resulting in
             isolated holes. (e.g.: Little Lake Worth has been dredged to a depth of 7 meters). For the
             most part, the areas of the lagoon which have not been dredged or converted to upland by
             fill activates remain at < 1-2 meters in depth.


             Bathymetric information for Lake Worth Lagoon is available from several sources. T'he
             USGS quadrangle maps include bathymetric contours at one meter intervals with
             supplemental 0.5 meter contours. The datum for the contours is mean low water. Navigation
             maps published by the National Oceanic and Atmospheric Administration (NOAA)
             indicated spot depths at mean low water.


             The bathymetry map (Figure 4) has been created by digitizing the one-half meter contour
             lines found on the USGS quadrangle maps. Spot depths throughout the lagoon were
             established by field measurements taken by ERM. Major holes and shoal areas were also
             located in the field, and are depicted on the map.





                                                          -15-













                                          LEGEND


                     2.5 SPOT DEPTH IN METERS DETERMINED BY FIELD SURVEY (MLW)



                                           NOTES


                   BATHYMETRIC CONTOUR INTERVAL 1 METER WITH SUPPLEMENTARY 0.5 METER
                   CONTOURS - DATUM IS MEAN LOW WATER

           SOURCE: U. S. COAST AND GEODETIC SURVEY AND NATIONAL OCEAN SERVICE, 1986.




































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                          Department of               LAKE WORTH LACOON                 0       1000   20 0           D&M JOB NO.
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                          RESOURCES                         BATHYMETRY                          SCALE                    FIGURE
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             5.5 HYDROLOGIC AND HYDRAULIC C                           STICS



             The hydrologic and hydraulic characteristics of Lake Worth Lagoon have been greatly
             altered from historic conditions by changes in tidal influence and freshwater inflows.


             Tidal influence occurs at Lake Worth Wet, South Lake Worth Inlet, and the Intracoastal
             Waterway entrances located at the north and south ends of Lake Worth Lagoon. Mean tide
             ranges are 2.6 feet at Palm Beach, 2.5 feet at Boynton Beach, and 2.8 feet at North Palm
             Beach, (van de Kreeke and Wang, 1976).


             Freshwater inflows to Lake Worth Lagoon according to SFWMD, 1977 are:


                    West Palm Beach Canal (C-51)               49.7%
                    Earman River (C-17)                        12.1%
                    Boynton Canal (C-16)                       10.7%
                    West Palm Beach STP                         1.3%*
                    Boynton Beach STP                           .3%*
                    Surface Runoff                             4.1%

                    Groundwater                                22.3%



                    *The West Palm Beach and Boynton Beach wastewater treatment plant outfalls have
                    subsequently been eliminated.


             The C-51 canal is the largest inflow discharging an average of 356 million gallons per day.
             Seventy five percent of the discharge flows north and reaches the Lake Worth Inlet within
             five days. Twenty five percent flows south and reaches South Lake Worth Inlet within nine
             days (SFWMI), 1977). The maximum residence time of the water body between the two
             inlets is approximately 14 days (Chiu et.al, 1970). Miscellaneous hydrological and hydraulic
             facts for Lake Worth Lagoon are presented in Table 2.



                                                        -16-












                                                                   TABLE 2



                                                          HYDROLOGICAL FACTS

                1.      Surface area of Lake Worth, including the bays is 2.64 X 108 feet'.

                2.      Surface area of Lake Worth between the two inlets is 1.96 X 108 feet2.

                3.      Volume of water below mean sea level, including the bays is 2.1 x 109 feet3.

                4.      Volume of water below mean sea level between the inlets is 1.73 x 109 feet3.


                5.      Average rainfall is 5.4 feet/year, a characteristic daffy rainfall during the wet season is 1 inch/day.

                6.      lWical evaporation rates are 0.05 inches/day during the winter, 0.22 inches/day during the summer
                        (computed by Lee, 1975 for Card Sound, a lagoon on the Atlantic coast of Florida approximately 100
                        miles south of Lake Worth).

                7.      An estimate of 281 cfs for the groundwater inflow was calculated for September 1974 and 1975 by J.
                        van de Kreeke et al. 1976.


                8,      The residence time of completely mixed pollutants - The time interval required to replace 50% of the
                        resident water (half-life) is about two tidal cycles (or one day) and the pollutants are reduced to 10%
                        of the original concentration in 6 to 8 tidal cycles (or 3 to 4 days).

                9.      The residence time of stagnant pollutants - A particle was found to have a net drift of about 3000 feet
                        per tidal cycle southward. A net inflow of about 2 X 104 feet per tidal cycle per foot width was found
                        to be associated with this net drift. In this case, the maximum residence time of the water body
                        between the two inlets would be about 14 days. (Chiu et al. 1970)

                10.     Salinity variations in Lake Worth correspond closely to the seasonal variations in the fresh water
                        inflow. The importance of groundwater inflow is illustrated by the salinity of 34 ppt during April, 1975
                        at Southern Boulevard Bridge compared to the ocean salinities of 36 ppt and higher when other
                        freshwater sources were negligible. Salinity profiles along the length of Lake Worth (on 9/18/74) show
                        a minimum of halfway between the two inlets. North of the West Palm Beach Canal, the salinity
                        distribution oscillates over a distance approximately equal to the tidal excursion. Vertical salinity
                        stratification is most pronounced south of the West Palm Beach Canal. (J. van de Kreek et al. 1976

                11.     Friction factor (F) values in Lake Worth varied from 0.002 in the wider and deeper parts to 0.017 in
                        the constrictions. The values of the friction factors are higher than the often recommend literature
                        value F = 0.0025. A simplified one-dimensional analytical model yielded an overall friction factor of
                        F = 0.017. The reason for these high values is the irregular bathymetry, in particular the constrictions,
                        leading to a three-dimensional flow pattern (J. van de Kreeke et al. 1976).








             Figure 5 presents a summary of Lake Worth Lagoon's hydrologic characteristics. Data
             presented on the map include: tidal amplitudes (feet) and tidal phases (hours) relative to
             the Lake Worth pier in the Atlantic Ocean; average tidal velocity for flood and ebb tides
             (feet/second); tidal flow or discharge flow (feet/second); volume of water (feet); salinity
             measurements of tidally averaged salinity and measured high and low tide salinities (parts
             per thousand); salinity measurements averaged for dry and wet seasons (parts per thousand);
             and friction factors as determined from a hydrological model of Lake Worth (Van de
             Kreeke et.al, 1976).


             The sources used to compile this information are: Area Planning Board of Palm Beach
             County, 1979; Bishop, W. M. Consulting Engineers and Area Planning Board of Palm Beach
             County, 1974; Bruun, P., I Battjes, T. Chiu, and J. Purpura, 1966; Chiu, T., J. van de
             Kreeke, and R. Dean, 1970; Florida Department of Environmental Regulation Southeast
             Florida District Branch Office, Port St. Lucie, Fla. Lake Worth Basin Water Quality
             Assessment for fiscal years 1985 and 1990. - water quality data; South Florida Water
             Management District, West Palm Beach, Florida -water flow data from 1985 - 1990 for the
             Earman River (C-17), West Palm Beach Canal (C-51), and the Boynton Canal (C-16);
             Schneider, J., 1973; University of Florida, 1971; van de Kreeke, J., J. Wang, R. Rehrer,and
             M. Roessler, 1976; van de Kreeke, J., and I Wang, 1978.


             A comprehensive circulation study of the entire Lake Worth Lagoon has not been done.
             Accordingly, flow directions, the extent of tidal flushing influences, and the quantities of
             water exchanged through the inlets have not been documented.













                                                        -17-






                                                             LEGEND



                   0     TIDAL AMPLITUDES AND PHASES
                        XX/ RELATIVE TIDAL AMPLITUDES = AMPLITUDE IN LAGOON/AMPLITUDE IN OCEAN (L.W. PIER)
                        /XX PHASE LAG = (HOURS) WITH RESPECT TO OCEAN TIDE AT L.W. PIER
                  AAVERAGE TIDAL VELOCITY = FLOOD TIDE/EBB 71DE (FT./SEC.)
                             DIRECTION
                    El   TIDAL FLOW OR DISCHARGE FLOW IN CUBIC FEET PER SECOND (CFS)
                           A BASED ON DISCHARGE (WPB   CANAL 948 CFS, BOYNTON CANAL 0 CFS, OCEAN TIDE RANGE 3.6 Fr.)
                           B BASED ON DISCHARGE (WPB   CANAL 1170 CFS, BOYNTON CANAL 24 CFS, OCEAN TIDE RANGE 3.4 FT.)
                           C BASED ON DISCHARGE (WPB   CANAL 228 CFS, BOYNTON CANAL 200 CFS, OCEAN TIDE RANGE 2.1 FT.)

                           D NO FRESH WATER INFLOW
                         EF  FRESH WATER INFLOW 1500   CFS FROM THE WPB CANAL (C-51)

                       GH I  MEAN DISCHARGE BASED ON 1971-1976 FLOW, FROM AREA PLANNING BOARD OF PALM BEACH COUNTY,
                             1979 - PALM BEACH COUNTY 208 AREAWIDE WASTE TREATMENT MANAGEMENT PLAN


                         WATER VOLUME IN CUBIC FEET (CUF)

                       ADF NO FRESH WATER INFLOW

                      BCEG FRESH WATER INFLOW 1500 CFS FROM THE WPB CANAL (C-51)

                         H I FROM AREA PLANNING BOARD OF PALM BEACH COUNTY. 1979 - PALM BEACH COUNTY 208 AREAWIDE
                             WASTE TREATMENT MANAGEMENT PLAN


                         SALINITY IN PARTS PER THOUSAND (PPT)
                           A TIDALLY AVERAGED SALINITY/MEASURED HIGH TIDE SALINITY/MEASURED LOW TIDE SALINITY, MEASURED
                             ON 9/18/74, FROM J. VAN DE KREEKE AND OTHERS, 1976. FIG. E2, PAGE 36
                           8 AVERAGE DRY SEASON/AVERAGE WET SEASON FROM THE FLORIDA DEPARTMENT OF ENVIRONMENTAL
                             REGULATION - PORT ST. LUCIE OFFICE, LAKE WORTH BASIN ASSESSMENT SURVEYS 1985 AND 1990.
                             AVERAGE SALINITIES WERE CALCULATED FROM MIDDEPTH SAMPLES COLLECTED DURING AN OUTGOING
                             TIDE ON 11/5/84, 2/4/85. 5/1&2/85, 8/12/85, 12/13/89, 3/22/90 AND 6/4/90.

                         THE FLOW DIRECTION VALUES ARE BASED ON 852 FEET3 /SECOND FLOW FROM THE WPB CANAL (C-51).

                         THE RESIDENCE TIME IS THE TIME TAKEN TO REMOVE THE ACCUMULATED VOLUME OF FRESH WATER
                         FROM THE LAGOON.

                         THIS IS THE AREA OF MINIMUM CURRENT ACTIVITY AND MINIMUM MIXING WHERE THE TIDES PROPAGATING
                         THROUGH THE TWO INLETS MEET AT THE TIDAL DIVISION LINE.

                         TIDAL DATA SHOWS THAT THERE IS A CONSIDERABLE OVERLAPPING BETWEEN THE TWO INLETS AND THAT
                         THE LAKE WORTH INLET INFLUENCES THE WATER LEVELS IN THE LAKE TO A GREAT EXTENT.

                         BASED ON WEEKLY SURFACE WATER SAMPLES AT HIGH AND LOW WATER FROM 1/75           12/75.

                         10EX = 10 x






                        Palm Beach County         LAKE WORTH LAGOON                                         D&M JOB NO.
                        Department of                                                                      20335-001-049
                        ENVIRONMENTAL
                        RESOURCES                HYDROLOGIC AND HYDRAULIC
            I*MANAGEMENT                               CHARACTERISTICS                                           5-A














                                                     1.00/0.81
                                                                    Iti
                                         IF

                                                   LITTLE
                                                  LAKE
                                                   WORTH


                                         V@
                      18                              35/29.3


                              34.8/28

















                        0.77/0,40










                                                                                 0


                                                      MUNYON\
                                                         ISLAND



                                                                                                       0
                                                                                                       i
                            MEAN DISCHARGE                                                             0
                                                                                                       1:2


                            C-17 CANAL                                                                 z
                            66.5 CFS


           A                              . . . . . . . . . . . . . . . . .LITTLE
                                                                         C,










                         EARMAN RIVER (C-                             MUNYON
                                                                                                       0
                                                                                                       N)
                                                            32.8/24   ISLAND
                    P:lm Beach County
                    D partment of        LAKE WORTH      LAGOON     0    1000   2000       D&M JOB NO.
                    ENVIRONMENTAL                                                          20335-001-049
                    RESOURCES           HYDROLOGIC AND   HYDRAULIC       SCALE               FIGURE
          ItMANAGEMENT                 I     CHARACTERISTICS             (FEET)                5-B







                                                                 MEAN DISCHARGE
                                                                 C-17 CANAL
                                                                     .5 CFS
                           A                                                                                                                                                                                                                     Ap
                                                                                                                                                                  UTTLE
                                                           EARMAN RIVER (C-                                                                                       MUNYON
                                                                                                                                                                  ISIAND
                                                                                                                                            32.8/24

                                                                       FLOW DATA
                                                                     Lqm
                                250--                          EARMANw`RIVnE0Rw V(#CL-UE1 7)


                                 200 . . . . .................................................I............... . ...... . ........... . ..........................I .........................



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



                                 100   . . ............................................ . ........ . ................ ... .... .....-. . .................... 11-11,  ...............



                                  so . ... ....................... ... .. ..... .. ........... .... ..... ....... ..............................................                                                                              0
                                                                                                                                                                                                                                              z



                                    Im
                                                    a A A a A & A A m & A A A a A i i a 6 a , , , , I , I. . . . . . . . . .                                                                                                                  >q
                                                 19"             111407         low             1909         l9w                                                                                                                              --I
                                                                                                                                                                                                                                              0



                                                                                                                                                                                                                                              0
                                                                                                                                                                                                                                              0






                                                                                                                        36/29.7


                                                                                                BLUE HERON BRIDGE
                                                                                    MEAN TIDAL RANGE 15 2.7 FEET                                                                                     SINGER
                                                                                                                                                                                                     ISIAND

                                                                                                                                                       0.97/0.82                                                                                 0

                                                                                                                                                                               INFLOVI/TIDAL CYCLE 6.3 X 1                           E8
                                                                                                                                                                               OUTFL@W/TIDAL CYCLE 6.2 X                            1 OE8
                                                                                                                                                                                                                                                 m


                                                                                                                                                                                                                                                 0
                                                                                                                                                                                                                                                 X
                                                                                                                                                                                                                                      A
                                                                                                                                                    PEANUT
                                                                                                                                                     ISLAND
                                                                                                                                                                                                 LAKE WORTH INLETM
                                                                                                                                                                                                                                                 -n
                                                                                                             36.8/27.7                                                                                                                           X
                                                                                                                                                                                                                                       H         Q
                                                                     PORT OF PALM BEACH                                                                                                                                        8
                                                                     MEAN TIDAL RANGE IS 2.6 FEET                                                  B                                                                                             0
                                                                     SPRING TIDAL RANGE IS 3.1 FEET


                                                                                                                                                                    INFLOW/ IDAL CYCLE                        X 10EB                             -4
                                                                                                                                                                                                                                                 0
                                                                                                                                                                    OUTFLOW IDAL                CYCL 6.45 @                10E8                  ;0
                                                                                                                                                                                                                                                 p
                                                                                                                                                  0.93/0.50                                                                                      0
                                                                                                                                                                                       LAKE      WO TH INLET              ANNUAL                 NJ
                                                                                                                                                                                       EBB      FILO VOLUME
                                                                                                                                                                                       4224      9          10EB
                           B                                                                                   34/36/31                                                                                                                          Bf
                                                P Im Beech County                                                                                                                                                   D&M JOB NO.
                                                D:parbnent of                                     LAKE WORTH LAGOON                                              0          1000          2000                    20335-001-049
                                                ENVIRONMENTAL
                                                RESOURCES                                       HYDROLOGIC AND HYDRAULIC                                                  SCALE                                           FIGURE
                         ItMANAGEMENT                                                        I             CHARACTERISTICS                                   I            (FEET)                                             5-C








           B                                                                                            B'



                                                34/36/31



                                                                                                       -n



                                                                                                       0
                                                                                                       z

                                                                                                       -n


                                                                                                       0











                                                   33/35.5/30




                                                   34.5/24.3

                                                                               32/35/28
                                                                   B
             z                                                          A




                                          CROSS SECTION            1.0
                                          AVERACE TIDAL
                                          VELOCITY              .8               0.98/0.45


                                                                           MA MUM FLOW
                                                                           3.5 x I OE4 CFS
                                                                           2.9 X 1 OE4 CFS             0
                                                                                                       z

                                                                                                       -n
                                                                                                       >




                                                                                                       P


                                                                                                       LA
                                                                              0.91/0.42

                                  FLAGLER MEMORIAL BRIDGE

                                                                                                       -n




                                                                                                       z


                                                                     A
                CLEAR

                 L4KE                                                        30.5/33.5/27.5
                                                                           MA  MU@
                                                                           3 .5 X I
                                                                             .9 X 1
                                                                           27















               CLE R
           ti__@E@_
                     Palm Beach County
                     Department of        LAKE WORTH LAGOON          0     1000 2000       D&M JOB NO.
                     ENVIRONMENTAL                                                         20335-001-049
                     RESOURCES           HYDROLOGIC AND HYDRAULIC        SCALE                FIGURE
          ItMANAGEMENT                _I      CHARACTERISTICS            (FEET)                5-D









                                                                                    A
                   CLEAR


                                                                                                                              0
                     IAKE                                                                    30.5/33.5/27.5                   z


                                                                                                                              0
                                                               33.8/21.3                      0.91/1.38


                                                    ROYAL PARK BRIDGE



                                                                                               28.5/32/26

                                                                                  A












                                                                                      V,,







                                                                                                                              0
                                                                                      >                                       z
                                                               27/29/24.5                L
                                                                                                                              0

                 TIDALLY AVERAGED SALINITY IN THE VICINITY OF THE SOUTHERN BOULEVARD  A
                                                                                                                              0
                  BRIDGE AND THE DISCHARGE OF THE WEST PALM BEACH CANAL (C-51)                                                0




                   30

                   25-
                                                                                    FISHERMAN
                                                                                       ISlAND
                                                                         200
                                                                         '000
                   10.                                                   wo
                                                                         6w
                   5                                                     400
                                                                         200                             0.87/1.EJ8
                      ON FEN      AM WY JM ML                  wv DEC
                                  (WOM J. MW DE KREEXE AM MIERS, IS76)


                                       SOUTHERN BOULEVARD BRIDGE
                                                                                                       MEAN TIOWL RANGE
                                                                                 A                     IS 2.4 Ff E-T
                          PHASE RELATION BETWEEN SALINITY AND WATER LEVELS
                              NEAR THE SOUTHERN BOULEVARD BRIDGE


                                                 MDCM TIME or WN WAIM
                                                        F rL W w     26/29/24
                       30-
                       25                                                                                                     0
                          -                                                                                                   z
                       20

                       NOV 27 28   29   30  DEC 1 2    3     4   57-4
                                  (FROM J. VAN VE XREEXE AM OrMEM. 1276)
                                                                                                   tA
                                                                                                                              0



                                                                                                                              D
                                                                         D

                                                                                    @Jl 4@@i

                                                                                      A
                          Palm Beach County
                          Department of            LAKE WORTH LAGOON                0     1000    2000         D&M JOB NO.
                          ENVIRONMENTAL                                                                       20335-001-049
                          RESOURCES              HYDROLOGIC AND HYDRAULIC                SCALE                    FIGURE
                          MANAGEMENT                    CHARACTERISTICS                  (FEET)                    5-E










                                                                                                                                                                                                                                                                                                                                                                                                  f




                                                                                                                                                                                                                                                                   A                                                                                                                              0



                                                                                                                                                                                                    CROSS SECTION
                                                                                                                                                                                                    AVERAGE TIDAL
                                                                                                                                                                                                    VELOCITY                                                                         .9                 B                                                                                         -n
                                                                                                                                                                                                                                                                    0.7
                                             -j L)
                                                                                                                                                                                                                                                                                                                                       fM@XIMUM FLOW
                                                                                                                                                                                                                                                                                                                                                                                                  0
                                                                                                                                                                                                                                                                                                                                               7 X 10E4 CFS                                       z
                                                                                        C-51 FLOW DIRECTION                                                                                                                                                                                                                                11 @35 X 1 OE4 CFS                                     -n
                                                                                        NORTHWARD 75% (630                                               CF                                                                                                                                                                                                                                       >
                                                                                                                                                                S                                                                                                                         HUNTERS
                                                                                        SOUTHWARD 25% (222                                               CFS@                                                                                                                                  ISLAND                              1                                                              0

                                                                                        C-51 RESIDENCE TIME
                                                                                        NORTHWARD 5.26 DAYS
                                                                                        SOUTHWARD 8.7 DAYS
                                                                                                                                                                                                    NET TRANSPORT/
                                                                                                                                           MEAN DISCHARGE                                           TIDAL CYCLE (CUF)
                                                                                                                                           C-51 CANAL                                                                                                                                               33/20                          .1
                                                                                                                                           637.4 CFS
                                                                                                                                                                                                                  f 4.36 X 1 OE7                                                                                        9 74
                                                                                                                                                                                                                                                                       C
                                                                                                                                                                                                                              0.88/1.74
                                                                                                                               WEST PALM BEACH CANAL (C-51)
                                                                                                                                                                                                                                                                                                            D                46                    AVERAGE NET
                                                                                                                                               33/22.3                                                          J1.11 X                   10E7                                                                                                     FLOW (CFS)
                                                                                                                                                                                                                                                                         E                A
                                                                                                                                                                                                                                                                                                             F            j530

                                                                                                                                                         FLOW DATA
                                                                                                                                                  MEAN ONLY FLOW VALUE
                                                                      IA                                                                                                                                                                   12.39                     10E7
                                                                                                                                               WP8 CANAL (C-51)
                                                                                        25W

                                                                                        2W       . ....... .......... ...... ... .. ........... . ........ ..... ... ...... ..... ............... ......... ..... .............. ................... 44 25/22

                                                                                                 . ............... ... ..... ........... ............................. .. ...... ........ ........ . ...... ...................................
                                                                                                                                                                                                                                                                                                    IBIS
                                                                                        @low     . ....................................  .............................. ..... ....... .. ........... . ...................... . ...............                                                     ISLE
                                                                                           wo       .......... ..... .... . ....           .. .. ........... .          I    ..... ..... ................ ........................  J....
                                                                                                                                     .... ..........                         ... ... .              -AA                                                                         A
                                                                                                 1985                 low                    1987                       to"                   low                    low
                                                                                                                                                                                                                     24/23/25





                                                                                                                                                                                                                                                                                                                                                                                                  T


                                                                                                                                                                                                                                                                                                                                                                                                  0
                                                                                                                                                                                                                                                                                                                                                                                                  z

                                                                                                                                                                                                                                                                                                                                                                                                  -n


                                                                                                                                                                                                                                                                                                                                                                                                  0


                                                                                                                                                                                                                          24.5/24/25                                             A
                                            E                                                                                                                                     LAKE AVENUE BRIDGE                                                                                                                                                                                              Ef
                                                                                                                                                                                                                                                   '25

                                                                                                                                                                                                                                                   IDGE
                                                                                                                                                                                                                     0.86/1.88                                                                                    7
                                           t
                                                                             PaLm Beach County
                                                                             Department of                                                                   LAKE WORTH LAGOON                                                                                  0                  1000 2000                                                       D&M JOB NO.
                                                                             ENVIRONMENTAL                                                                                                                                                                                                                                                      20335-001-049
                                                                             RESOURCES                                                                   HYDROLOGIC AND HYDRAULIC                                                                                                s                                            i                              FIGURE
                                                                             MANAGEMENT                                                                                      CHARACTERISTICS                                                                                    (F ET)                                                                           5-F










                                                                                                                                   X
                                                                          24.5/24/25         A
               E                                                                                                                   CY
                                                            LAKE AVENUE BRIDGE                                                     z

                                                                                                                                   >

                                                                                                                                   0
                                                                                                                                   x
                                                                        0.86/1.88                                                  P


                                                LAKE WORTH PIER
                                                MEAN TIDAL RANGE IS 2.8 FEET
                                                SPRING TIDAL RANGE IS 3.3 FEET                     1.0/0.0


                                                                     25/25/25-11



                                                                                            A




                                                                                                           7/27.5/@6

                                                                                                                                   0
                                                   71DAL DIVISION LINE BETWEEN
                                                   THE LAKE WORTH INLET AND
                                                   THE SOUTH LAKE WORTH INLET
                                                   (UNIV. OF FLA., 1971)
                                                                                                         35.5/27,                  0
                                                                                                                                   ;0
                                                        OCEAN AVENUE BRIDGE               ------                                   P

                                                                                           B


                                                                                                           MAXIM    FLOW
                                                                                                  Q         .3 X IOE4 CFS
                                                            CROSS SECTION                                    3 X lOE4 CFSi
                                                            AVERAGE TIDAL
                                                            VELOCITY                       C     co
                                                                                    0.5




                                                                                   0.3
                                                                                                 96

                                                                                       A
                                                                    29/28/30.5





               F                                                                                                                   Ff




                          PaLm Beach County
                          Department of              LAKE WORTH LACOON                 0      1000 2000            D&M JOB NO.
                          ENVIRONMENTAL                                                                            20335-001-049
                          RESOURCES                HYDROLOGIC AND HYDRAULIC                  SCAU                      FIGURE
             ItMANAGEMENT                                  CHARACTERISTICS           I       (FEEr)                     5-C









                                          F                                                                                                                                                                                                                                                                                                                                                      Fï¿½









                                                                                                                                                                                                                                                                                                                                                                                             0
                                                                                                                                                                                                                                                                                                                                                                                             z




                                                                                                                                                                                                                                                                                                                                                                                             0

                                                                                                                                                                                                                                                       A                                                                                                                                     P
                                                                                                                                                                                                                                                                                                                                                                                             0
                                                                                                                                                                                                                                                                                                            S UTH LAKE WORTH INLET                                                           0
                                                                                                                                                                                                                                                                                                                                                                                             f1i
                                                                                                                                                                              31.5/33/30.5                                                                                                                         NUAL EBB FLOW
                                                                                                                                                                                                                                                                                                   I               LUME 703.262 X 10E8
                                                                                                                                                                                                                                                                     35--5-/--2-6-.-3-f
                                                                                                                         THE DIVIDING LINE BETWEEN
                                                                                                                         THE TIDAL AREAS OF LAKE                                                                                                                                                                   INFLOW/TIDAL CYCLE
                                                                                                                         WORTH AND SOUTH LAKE                                                                                                                                                                      0.9 X 1 OE8
                                                                                                                         WORTH                                                                                                                                                                              I      OUTFLOW/TIDAL CYCLE
                                                                                                                         (BRUNN & OTHERS, 1966)                                                                                                    BEER CAN                                                        1.0 X I OE8
                                                                                                                                                                                                                                                          ISIAND
                                                                                                                                                                               0.86/2-15                                                                                                                       -2@@ \@@WORTI.
                                                                                                                                                                                                                                                                                                              SOUTH LA
                                                                                                                               MEAN DISCHARGE                                 33/33/33                                             A                                                                          INLET                E    lp G
                                                                                                                                                                                                                                                                                  AXIM M DISCHARG
                                                                                                                               C- 16 CANAL                                                                                                                                    0.7 X 10E4 CFS
                                                                                                                               106.7 CFS
                                                                                                                                                                                                                                                                                   INF OW/TIDAL CYCLE 0.84 X 1OE8
                                                                                             BOYNTON CANAL (C-16)                                                                                                                                                                  0 FLOW/TIDAL CYCLE 1.08 X IOE8
                                                                                                                FLOW DATA                                                                                                                    365/2 3
                                                                                                          MEAN MLY rLow VALUE                                                                                                                                                                      SOUTH LAKE WORTH INLET
                                                  3w                                             BOYNTON CANAL (C-16)                                                                                                                                                                              FRICTION FACTOR = 0.005

                                                  3M    . . . .............................................. . ................ . ................. ... . .................................                                                                                                        SOUTH LAKE WORTH INLET FLOW
                                                                                                                                                                                                                                                                                                   DIRECTION IN LAGOON
                                                  2W    . ............... ..........;....... .... .. ................. . .......... ...... ........ .. . ................. . ..........................                                                                                            NORTHWARD - 60%
                                                                                                                                                                                                                                                                                                   SOUTHWARD - 40%
                                                  2w    . .......................... .... ...................... .  .........  ....... .. ...  .... ........ ...... ....... .......... .....


                                                        . ...... . ................. . .....  ....        ""I".     -...       ............. . ....... ................................. ...


                                                        . .. . ......................  ... - -            -11, . ....... . ... . ...... .. .............     . ...... ................ .....


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



                                                        M                     low                     IN7                      ING                    im                    1"0
                                                                                                              OCE          AN             AVENUE BRIDGE                                                                                  36/25.7
                                                                                                                                                                                                                                                                                                                                                                           '
                                                                                                                                                                                                                                                                                                                                                                                8
                                                                                                                                                                                                                                                                                                                                                                           @E



























                                                                              Palm Beach County                                                                                                                                                                                      000                    2000                                   ID&M JOB No.
                                                                              Department of                                                                  LAKE WORTH LAGOON                                                                                 0                                                                                20335-001-049
                                                                              ENVIRONMENTAL
                                                                              RESOURCES                                                                HYDROLOGIC AND HYDRAULIC                                                                                                  SCALE                                                                        FIGURE
                                         ItMANAGEMENT                                                                                                                       CHARACTERISTICS                                                                                      (FEET)                                                                          5-H












              5.6 SEDIMENT CHARACTERISTTCS



              The sediments of lake Worth Lagoon have been the subject of several studies over the past
              fifteen years. Sediment samples have been highly variable in the percentages of various grain
              sizes. Fine to medium sands appear to be the predominant type of sediment in Lake Worth
              Lagoon.


              Grain size characteristics, category definitions and grain size data for Lake Worth Lagoon
              sediments were compiled from the literature and put in tabular form (Appindix 8.2). The
              grain size data was divided into descriptive categories. The categories are: shell material or
              gravel, pebble or cobble size particles; shelly sand; sand; silty sand; sandy silt; and silt.


              Figure 6 depicts the locations of sampling stations utilized in sediment studies and the grain
              size category of the sample collected at each station. Field observations were used to
              determine the location of peat deposits or rock outcrops depicted on the map. The studies
              used to compile data for the map are: Reed, J.K, 1975; Rogers, R. 1970; Rudolph, H., 1989;
              Schropp, S., and F. Calder, 1989; Tropical Ecosystems Inc., 1983.


              Distinct geographical distribution of various sediment categories is not indicated by analysis
              of eidsting data. Shell or gravel sized particles were found only at two locations in the
              central part of the lagoon that have been heavily altered by dredge and fill activities. Silt
              sized particles were found only at the northern end of the study area in Little Lake Worth
              which has been dredged to 7 meters in depth resulting in a siltation basin. Shelly sand,
              sands, and sandy silt are distributed throughout the study area with greater occurrence of
              the larger sized particles near and north of the inlets, and greater occurrence of the smaller
              particles near the C-17 inflow and from the C-51 inflow south to the vicinity of Lake Avenue
              Bridge. These observations can be logically supported by several hydrological facts: greater
              tidal energy and flushing near the inlets prevents deposition of fine materials; canal inflows
              contain large amounts of suspended particles which settle out in the lagoon; tidal influence

                                                          -18-








            is most reduced in Lake Worth Lagoon south of the C-51 inflow near Lantana Bridge
            allowing maximum settlement of suspended particles . Peat deposits occur south of Blue
            Heron Bridge and south of Hypoluxo Island. Limestone outcrops occur in the vicinity of
            Lake Worth Inlet, near the islands that are located west of the Town of Palm Beach, and
            North of Hypoluxo Island.











































                                                     -19-






                                           LEGEND
                @    SHELL MATERIAL, OR GRAVEL, PEBBLE OR COBBLE SIZE PARTICLES
                     > 2mm (-l phi UNITS)

                     SHELLY SAND
                     GREATER THAN 10% SHELL MATERIAL OR PARTICLES > 2mm (-l phi)
                     AND GREATER THAN 10% SAND SIZE PARTICLES

                RXX  SAND
                     PREDOMINANTLY PARTICLES SMALLER THAN A GRANULE AND LARGER
                     THAN A COARSE SILT GRAIN, HAVING A DIAMETER IN THE RANGE OF
                     0.062mm - 2mm (4 TO -1 phi UNITS) WITH LESS THAN 10% OF
                     PARTICLES LARGER THAN 2mm AND 10% PARTICLES LESS THAN 0.062mm
                Ig   SILTY SAND
                     AN UNCONSOLIDATED SEDIMENT CONTAINING MORE PARTICLES OF SAND
                     SIZE THAN OF SILT SIZE, MORE THAN 10% SILT AND LESS THAN 10%
                     OF OTHER SIZES

                @g   SANDY SILT
                     AN UNCONSOLIDATED SEDIMENT CONTAINING MORE PARTICLES OF SILT
                     SIZE THAN OF SAND SIZE, MORE THAN 10% OF SILT AND LESS THAN
                     10% OF ALL OTHER SIZES
                E3   SILT
                     AN UNCONSOLIDATED SEDIMENT CONTAINING MORE THAN 80% SILT SIZE
                     PARTICLES, LESS THAN 12% CLAY AND LESS THAN 20% SAND

                     PEAT
                     AN UNCONSOLIDATED DEPOSIT OF SEMICARBONIZED PLANT REMAINS


                     ROCK
                     A LIMESTONE OUTCROP SOMETIMES UNDERLYING A THIN LAYER OF
                     SEDIMENT


                xx   STATION DESIGNATIONS



                                        REFERENCES

                  D# DEIS, D., R. WALESKY, H. RUDOLPH, 1983. FOR PALM BEACH COUNTY
                     AREA PLANNING BOARD - UNPUBLISHED REPORT BY TROPICAL
                     ECOSYSTEMS, INC.

                LW#  RODGERS, R., 1970. U.S.E.P.A. - UNPUBLISHED STUDY OF LAKE WORTH

                  R# RUDOLPH, H., 1989. FLORIDA DEPARTMENT OF ENVIRONMENTAL
                     REGULATION, PORT ST. LUCIE OFFICE, BIOLOGY SECTION - UNPUBLISHED
                     REPORT OF LAKE WORTH

                  S# SCHROPP, S. AND F. CALDER, 1989. FLORIDA DEPARTMENT OF
                     ENVIRONMENTAL REGULATION, TALLAHASSEE OFFICE, COASTAL ZONE
                     MANAGEMENT SECTION - UNPUBLISHED STUDY ON LAKE WORTH



                  Palm Beach County                                          D&M JOB NO.
                  Department of     LAKE WORTH LAGOON                       20335-001-049
                  ENVIRONMENTAL
                  RESOURCES              SEDIMENT                              FIGURE
         I*MANAGEMENT                 CHARACTERISTICS    I                I     6-A






















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                           Department of               LAKE WOR TH         LAGOON        0       000    2000           D&M JOB NO.
                           ENVIRONMENTAL                                                                             20335-001-049
                           RESOURCES                           SEDIMENT                        SCALE                      FIGURE
              ItMANAGEMENT                                CHARACTERISTICS                      (FEET)                      6-B





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                       Palm Beach County                                                               D&M JOB
                       Department Of           LAKE WORTH LAGOON             0     1000   2000                  NO.
                       ENVIRONMENTAL                                         1                        20335-001-049
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                       Palm Beach county
                       Department 41,          LAKE WORTH LAGOON             0    10010 2000          D&M JOB NO.
                                                                                                     20335-00-049
                       ENVIRON              I
                       RESOURCES                      SEDIMENT                    SCALE                  FIGURE
                       MANAGEMENT                 CHARACTERISTICS                 (FErr)                  6-H












             5.7 POINT AND NON-POINT SOURCE QUITALLS



             Point source discharges to Lake Worth Lagoon have been greatly reduced in recent years.
             During the 1950's, an estimated ten million gallons per day (MGD) of raw sewage was
             discharged resulting in extensive bacterial and nutrient pollution. By 1970, seven major waste
             water treatment plants had been constructed, discharging 18.49 MGD of secondarily treated
             sewage effluent. The volume was reduced to 2.98 MGD by 1984, largely as a result of the
             National Pollution Discharge Elimination System (NPDES) program administered by the
             U.S. Environmental Protection Agency. According to the Florida Department of
             Environmental Regulation, three waste water treatment plants currently discharge a total
             of approximately 2.36 MGD of secondarily treated sewage effluent to the Lake Worth
             watershed (personal communication, DER, October, 1990).


             The plants with discharge are as follows:


                    Seacoast Utilities

                    North Palm Beach Waste Water Treatment Plant
                      design capacity - 4.85 MGD
                      yearly average discharge (10/89 - 9/90) - 2.11 MGD
                    Maisonettes South Inc.

                    Condominium Waste Water Treatment Plant
                      design capacity - 0.1 MGD
                    Wellington Arms
                    Condominium Waste Water Treatment Plant
                      design capacity - 0.15 MGD


             The Seacoast Utilities North Palm Beach Waste Water Treatment Plant is scheduled to take
             their discharge off line in December, 1990.



                                                         -20-









             The Florida Power and Light Company's Riviera Beach Power Plant circulates 282 MGD
             of cooling water. Ile discharge into the lagoon is approximately ten degrees warmer than
             the ambient water temperature (Harris et.al, 1983).


             Federal (NPDES) and state environmental regulations require removal of existing point
             sources or in some cases retrofit to meet established effluent limits. New point sources must
             apply 'best technology' and meet stringent discharge standards in order to receive required
             federal and state permits. While new discharges are not categorically prohibited, the
             standards which must be met discourage them.


             Non point source discharges to Lake Worth Lagoon represent a relatively small percentage
             of the total freshwater inflow but result in a major water quality influence. Most of the
             surrounding urban areas discharge stormwater runoff directly to the lagoon. A total of 381
             stormwater discharge pipes along the Lake Worth Lagoon shoreline were identified in the
             course of this study. A summary of the outfall sizes is presented in Table 3.





                                                       TABLE 3
               Drainage Outfall Diameter           Non-Point Source Ouffalls Number of Outfalls
               small (<24')                                                       57

               medium (> 24" - 4T)                                                28

               large (> 48!)                                                      33

               undetermined                                                       263


                                                       Total                      381






             A great number of the drainage systems which discharge to Lake Worth Lagoon were
             constructed prior to the advent of regulations which require passive treatment components
             to be designed into the system prior to discharge. The impact of stormwater pollution on

                                                         -21-









             water quality in Lake Worth is apparent in the overall Trophic State Index water quality
             rating at the lower end of the good range. Since point sources have been greatly reduced
             in recent years, it is reasonable to conclude that stormwater runoff is the major source of
             water quality pollution. Stormwater runoff from urban areas contains high levels of metals,
             nutrients, suspended solids, and oils and greases. Degraded water quality in turn increases
             biochemical oxygen demand and adversely impacts fish, wildlife and recreational resources.


             State and local regulations require new stormwater drainage systems to be constructed and
             operated in accordance with design and performance standards which result in some
             treatment of drainage water prior to discharge. Existing outfalls however, are not required
             to retrofit. In recognition of the water quality impacts of stormwater discharges, the City
             of West Palm Beach has included a provision in its comprehensive plan to create a
             stormwater utility sometime during the 1990's when the city's population reaches 100,000.
             If the plan is implemented, stormwater runoff will be treated in a utility prior to discharge.
             Stormwater utilities, retrofit requirements, and improved design of stormwater treatment
             systems are initiatives which must be undertaken in order to reduce the water quality
             impacts of stormwater discharges.


             The locations of major discharge points are indicated on Figure 7. Outfall locations were
             obtained from Municipal Comprehensive Plans, the Riviera Beach Development of Regional
             Impact Document and field observations. Outfall sizes were noted when the information
             was included in Comprehensive Plans. The sizes of the outfalls were designated as small
             (<24 inch diameter), medium (24 - 48 inch diameter), large (>48 inch diameter), unknown
             size, and point sources (waste water treatment plants and electric power plants).











                                                          -22-












                                                          LEGEND



                                                      OUTFALL SIZE


                                                    0 SMALL (< 24" DIAMETER)

                                                    9 MEDIUM        24"-47" DIAMETER)

                                                    0 LARGE       46' DIAMETER)

                                                    e POINT SOURCE


                                                    0 UNDETERMINED DIAMETER







































                       Palm Reach County                                                                D&M JOB NO.
                       Department of            LAKE WORTH LAGOON                                     20335-001-049
                       ENVIRONMENTAL
                       RESOURCES                POINT AND NONPOINT                                         FIGURE
            ItMANAGEMENT                          SOURCE OUTFALLS                                              A


















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                          Department of              LAKE WOJ?TH LAGOON                0      1000    2000          D&M JOB NO.
                          ENVIRONMENTAL                                                                            20335-001-049
                          RESOURCES                   POINT AND NONPOINT                     SCALE                     FIGURE
                          MANAGEMENT                    SOURCE OUTFALLS                      (FEET)                      7-B






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                    Palm Beach County
                    Department of         LAKE WORTH LAGOON          0    1000 2000         D&M JOB NO.
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                         RESOURCES                  POINT AND NONPOINT                     SCALE                    FIGURE
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                                                                                                                                       IV


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                      Palm Beach County
                      Department of           LAKE WORTH LAGOON             0     1000 2000          D&M JOB NO.
                      ENVIRONMENTAL                                                                 20335-001-049
                      RESOURCES               POINT AND NONPOINT                 SCALE                  FIGURE
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                         Palm Beach County
                         Department of               LAKE WORTH LAGOON                 0     1000 2000             D&M JOB NO.
                         ENVIRONMENTAL                                                                            20335-001-049
                         RESOURCES                   POINT AND NONPOINT                      SCAM                      FIGURE
                         MANAGEMENT                     SOURCE OUTFALLS                     (FEET)                      7-G









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                       Palm Beach County                                                              D&M 1011 NO,
                       Department of           LAKE WORTH LACOON             0    1000 2000          20335-001-049
                       ENVIRONMENTAL
                       RESOURCES               POINT AND NONPOINT                 SCALE                  FIGURE
                                                                                                           -H
           ItMANAGEMENT                     I    SOURCE OUTFAUS                   (FEET)                  7












                     SA SHORELINE CHARACTERISTICS


                     Most of the Lake Worth Lagoon shoreline has been altered by dredging, filling, and
                     bulkhead construction (see Figure 1). Between 1940 and 1975, an estimated 87% of
                     shoreline mangroves were eliminated by shoreline development (Harris et.al, 1983). The
                     ecological value of mangrove communities has been well documented in the scientific
                     literature. Mangrove communities provide habitat for marine organisms, protect shorelines
                     from erosion, and enhance water quality by acting as natural filters. Detrital material
                     produced by mangroves is the basis of the food chain for South Florida's marine and
                     estuarine ecosystems. Currently only about 19% of the shoreline (including islands) has
                     fringing mangroves. Bulkheads have been constructed on approximately 65% of the
                     shoreline (including canals). The linear extent of major shoreline types is presented on

                     Table 4.


                                                                                      TABLE 4

                                                                          SHORELINE CHARACTERISTICS

                                             SHORELINE TITE                          LINEAR bULES                        PERCENTAGE OF
                                                                                                                            SHORELINE

                                       Bulkhead                                             55.3                                  60

                                       Bulkhead with Rip-Rap                                4.1                                   4.5
                                       ReveMent

                                       Natural Shorefine(Unvagetated)                       8.2                                   9

                                       Rock                                                 0.6                                    .5

                                       Rip Rap Revetment                                    3.5                                    4
                                       Exotic Vegetation                                    2.5                                    3

                                       Mangrove                                             17.3                                  19

                                                   TOTAL                                    91.5                                 100

                                       *Includes connected canals.


                     Shoreline characteristics are depicted on                            Figure 8. The shoreline was divided into six
                     categories; seawall revetment, rip-rap revetment, natural unvegetated shoreline, rock,
                     mangrove vegetation, and exotic vegetation. The initial map was plotted from 1989 "Redi"

                                                                                                                                                     o
                     aerial pho      tographs. Field observations were used to ground truth the aerial ph                                               tographs
                     and plot shoreline characteristics.

                                                                                        -23-











                                                         LEGEND




                    ociocio BULKHEAD

                    AAAA&   NATURAL SHORE

                    a a 13 a13 ROCK

                            RIP-RAP REVETIVIENT

                    &AAA&   MANGROVES(Rhizophora mangle - RED MANGROVE. Avicennia germinans - BLACK MANGROVE,
                                         Lagunculaft racemosa - WHITE MANGROVE)
                    meson   EXOTIC VEGETATION (Casuarina equistifolia - AUSTRALIAN PINE, Schinus terebinthifolius
                                                 BRAZILIAN PEPPER, Thespesia populnea CORK TREE)





































                       Palm Beach County                                                            D&M JOB NO.
              XAI@N Department of             LAKE WORTH LAGOON                                    20335-001-049
                       ENVIRONMENTAL
                       RESOURCES                     SHORELINE                                         FIGURE
             WMANAGEMENT                          CHARACTERISTICS                                        8 -A



















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                                                                 LAKE
                                                                  WORTH







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                                                                      MUNYO
                7:J                                                       ISIX



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                                 BARMAN RMR (C-17)                                         MUNYON
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                          Palm Beach County
                          Department of               LAKE WORTH          LAGOON         0     1000     2000          D&M JOB NO.
                          ENVIRONMENTAL                                                                          1  20335-001-049
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              5.9 SUBMERGED NATURAL RESOURCES



             Submerged bottom resources in Lake Worth Lagoon include seagrass beds, macro algae,
             oyster habitat, corals and sponges.


             Seagrasses first became established in Lake Worth Lagoon when the system was converted
             from freshwater to marine due to the influences of permanent inlets. Seagrasses reportedly
             have never been abundant (Harris et. al., 1983). In general, seagrasses are most abundant
             and dense in shallow areas and in areas which maintain good water clarity due to sheltering
             or tidal flushing.


             Six species of seagrasses are known to occur in Lake Worth Lagoon. Turtle grass, Thalassia
             testudinum is capable of forming dense beds. Shoal grass, Halodule wrightii is most tolerant
             of temperature and salinity changes. Manatee grass, Syringodium filifortne mixes with other
             species in small beds. Halophila engelmanni and Halophild johnsond and Halophild decipiens
             populate deeper areas. In Lake Worth Lagoon, Halodule wrighth is the most abundant
             species of seagrass in terms of area coverage, and occurs primarily in shallow areas.
             Thalassia and Syringodium are found infrequently, and are most abundant in the north end
             of the lagoon. Halophild engelmwmi was observed in a single occurrence in North Lake
             Worth Lagoon.


             Seagrass communities can be found throughout Lake Worth Lagoon. The highest
             concentrations of seagrass communities are located in the northeast lagoon area and in the
             vicinities of the Lake Worth and South Lake Worth Inlets. In northeast Lake Worth Lagoon
             extensive turtle grass and shoal grass communities exist in the area east of the Intracoastal
             Waterway between Palm Beach Isles and Big Munyon Island. The greatest abundance of
             manatee grass is located in the vicinity of Lake Worth Inlet. The areas north of Lake Worth
             Inlet, south of South Lake Worth Inlet, and in the vicinity of the Bingham Islands contain
             significant communities of mixed Halophild and Halodule.



                                                         -24-









                   Species of macro algae also become attached to the bottom or form drifting mats. Seagrass
                   and macro algal communities are very important habitat for many marine species. Their
                   continued survival in Lake Worth Lagoon is dependent upon protection from direct impacts
                   and maintenance of good water quality.


                   Table 5 is a quantitative summary of seagrass coverage in Lake Worth Lagoon. Of the total
                   2110 acre area of seagrass coverage, Halodule Wghid is the dominant seagrass comprising  
			 1010 acres (51%). Halophila johnsonii and Halophila decipiens are second in abundance
                   covering 555 acres (25%). Mixed assemblage of all three species comprise 380 acres (19%).
                   Other species of seagrass comprise only 65 acres (3%).






                                                                                      TABLE 5

                                                                             SEAGRASS COVERAGE


                                          SPECIES                              ESTIMATED ACRES OF                     PERCENT OF TOTAL ACRES OF
                                                                                      COVERAGE                                    SEAGRASS

                         Halode Wrightii, Shoal Grass                                        585                                        28%

                         Halophila decpipiens, Paddle Grass                                  450                                        20%
                         Halopha johnsond, Johnson's Seagrass

                         Mixed Halodule  and Halophila sp.                                   285                                        15%

                         Syringodium filiforme, Manatee Grass                                  30                                         1%

                         Thalassia restudinum, Turtle Grass                                 35                                         2%

                         Attached Macro-Algal Species                                       40                                         2%

                         Mixed Halodule wrightii and Attached                                 425                                        23%
                         Macro-Algal Species

                         Mixed Halodule Species and Attached                               105                                        5%
                         Macro-Algal Species

                         Mixed Halodule , Halophild Species                            95                                         4%
                         and Attached Macro-Algal Species

                         Total - All Species                                              2110

                         (2110 acres= apprcximately 35% of the total submerged area of Lake Worth Lagoon)







                                                                                    -25-
 









             While not as abundant as seagrass communities, other types of bottom resources including
             oyster bars, corals and sponges also provide important habitat functions for marine
             organisms. Oyster bars can be found in the vicinity of John D. MacArthur State Recreation
             Area, in the vicinity of the Bingham Islands and at the north end of Hypoluxo Island.
             Corals and sponges are limited in occurrence to areas within close proximity to the inlets.


             The submerged bottom resources inventory is presented on Figure 9. Field observations
             were made of the distribution of seagrasses, macro algae, oyster habitat, corals and sponges.
             Observations were made by snorkeling, use of an underwater viewer, and sample collections
             with a sharp tined double edged thatching rake. The results of additional surveys which
             have been conducted for dredge and fill project evaluation were included on the map.
             Combinations of species of seagrasses or algae are coded as mixed assemblages. Attached
             macro algal species include; Caulerpa species (C sertularibides, C prolifera, C me-xicana),
             Udotea sp., Penicillus sp., Halimeda sp., Dictyota sp., Padina sp., Hypnea sp., Acanthophora
             spicifera. Oyster habitat includes Crassostrea species (C virginica, C rhizophorae). Coral
             species include; Siderastrea sp., Porites sp., Monastrea sp., Oculina sp., Leptogorgia setacea
             species of sponge include; Cliona sp. and Spheciospongia vesparium.


             During field studies ERM observed a conspicuous absence of seagrasses on a shallow sand
             bar north of Munyon Island and in shallow areas north and south of the C-51 Canal. Exact
             causes are unknown, but may be related to sediment characteristics or inadequate water
             quality resulting from the effects of canal discharges and/or poor tidal flushing.












                                                         -26-










                                                LEGEND




                      Halodule wrightii SHOAL GRASS

                      Halophila decipiens PADDLE GRASS
                      Holophila johnsonii JOHNSON'S SEAGRASS
                  1959i3MIXED Halodule wrightii AND Halophila SPECIES

                      Syringodiurn filiforme MANATEE GRASS

                      Thalassia testudinurn TURTLE GRASS

                      ATTACHED MACRO - ALGAL SPECIES - INCLUDES: Caulerpa SPECIES
                      (C. sertularioides, C. prolifera, C. mexicana), Udotea sp., Penicillus sp.,
                      Halimeda sp., Dictyota sp., Padina sp., Hypnea sp., Acanthophora spicifera

                      MIXED Halodule wrightii AND ATTACHED MACRO - ALGAL SPECIES

                      MIXED Halophila SPECIES AND ATTACHED MACRO - ALGAL SPECIES
                  Moo MIXED Holodule wrightii, Holophila SPECIES AND ATTACHED MACRO -
                      ALGAL SPECIES

                  FiVXCrassostrea SPECIES (C. virginica, C. rhizophorea) OYSTER BAR
                  @CORALS (Siderastrea sp., Porites sp., Monastrea sp., Oculina sp.,
                      unidentified sp. SEA WHIP), AND SPONGES (Cliona sp.   BORING SPONGE,
                      Spheciospongic vesparium  LOGGERHEAD SPONGE)


















            *
                    Palm Beach County                                               D&M JOB NO.
                    Department of      LAKE WORTH LAGOON                           20335-001-049
                    ENVIRONMENTAL
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                    MANAGEMENT          NATURAL RESOURCES                               9-A


















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                                                                                                                                                                                D&M JOB NO.
                                                                                 LAKE                                                   P         1000 Z000                   20335-001-049
                                           'm' WIWI,
                                            . .        . no                                                                                       SLAU                               FIGURE
                                       MANAGEMENT                                 NATURAL RESOURCES                                               (Fzrr)                               9-H












              5.10 KNOWN OCCURRENCES OF FISH



              Several studies of Lake Worth Lagoon's fish populations have been conducted over the past
              twenty years. Table 6 is a list of 261 fish species which have been collected in Lake Worth
              Lagoon including fish species found in the vicinity of the inlets.


              Both resident and transient populations are found in the lagoon, but population sizes as well
              as timing and nature of utilization by various species are largely unknown. Hedgepeth, 1985
              collected the largest number of species during the month of July.


              While conclusive data documenting the population trends of various fish species in Lake
              Worth Lagoon are not available, it is clear from review of historical accounts and catch
              records that commercial and recreational fisheries resources in the lagoon have greatly
              declined over the past forty years (Harris, et.al, 1983; Lewis et.al, 1985; McCrary et.al, 1985;
              WPB Fishing Club, 1990; Woodburn, 1961). The most likely reasons for fisheries declines
              are habitat destruction and water quality degradation which have been documented in other
              sections of this report. Improperly regulated fish harvesting is probably a contributing
              factor.



              Table 7 is a compiled list of the 195 fish species collected in Lake Worth Lagoon. Ile list
              was phylogenetically arranged and each taxa was assigned a number. Figure 10 depicts the
              locations of fish collections from Lake Worth Lagoon. The locations of stations or transects
              where fish were collected during six studies have been plotted on the map. The number
              codes for fish taxa listed on Table 7 are cited at the appropriate collecting sites. The
              literature source key includes code letters for each study used and code numbers to identify
              stations or transects. Included for each of these studies are the methods of collections and
              the dates the collections were made. The studies used to compile the table and map are:
              Hedgepeth, M., 1985; Herrema, D., J. Reed, and J. van Montfrans, 1973; Rehrer, R., 1977;
              Rogers, G.R., 1970; Tropical Ecosystems Inc., 1983; Woodburn, K, 1962.

                                                           -27-









             The greatest numbers of fish species have been collected near Munyon Island, northwest of
             Palm Beach Shores, near Lake Worth Inlet, near Hunters Island and in the vicinity of South
             Lake Worth Inlet, all areas which contain some of the lagoon's most diverse marine habitats.
             It must be noted however, that sampling stations and frequencies tended to be more
             concentrated in those areas.



             The total number of species collected in Lake Worth Lagoon (195), and in the lagoon
             including the vicinity of the inlets (261), is comparable to the total for the Loxahatchee
             River Area where 267 species have been collected (Christensen, 1965), to the Indian River
             Lagoon where 286 species have been collected (Gilmore et.al, 1981), and to Biscayne Bay
             where 193 species have been collected (DERM, 1984).


































                                                         -28-














                                                                    TABLE 6


                                            LAKE WORTH FISH INCLUDING FISH FOUND IN
                                                         THE VICINITY OF INLETS


                    Found in vicinity of inlets
                 T   Found throughout Lake Worth
                     Questionable identification (not known to occur in North America, R. Robins - personal communication).



                      FAMILY
                               GENUS, SPECIES                                         COMMONNAME


                        BRANCHIOSTOMIDAE
                               Asymmetron sp.                                         lancelet
                  I            Asymmetron lucayanum                                   sharptaff lancelet

                        ORECTOLOBIDAE
                  I            Ginglymostoma cirratum                                 nurse shark

                        CARCHARHINIDAE
                  I            Carcharhinus brevipinna                                spinner shark
                  T            Carcharhinus leucas                                    bull shark
                  I            Carcharhinus limbatus                                  blacktip shark
                  I            Carcharhinus obscums                                   dusky shark
                  I            Negapfion brevirostris                                 lemon shark

                        SPHYRNIDAE
                  I            Sphyma tiburo                                          bonnethead


                        PRISTIDAE
                  I            Pristis perotteli                                      largetooth sawfish

                        TORPEDINIDAE
                  I            Narcme brasiliensIs                                    lesser electric ray

                        RAJIDAF-
                  I            Raja eglantefia                                        cleamose ray

                        DASYATIDAE
                  T            Dasyatis ameficana                                     southern stingray
                  T            Dasyatis sabina                                        Atlantic stingray
                  T            Dasyatis sayi                                          bluntnose stingray
                  T            Gymnura micrura                                        smooth butterfly ray

                        MYLIOBATIDAE
                  T            Aetobatus nafinari                                     spotted eagle ray
                  T            Rhinoptera bonasus                                     cownose ray

                        MOBULIDAE
                  T            Manta birostfis                                        Atlantic manta Ouveniles)













                        ELOPIDAE
                   T            Elops saurus                                           ladyfish
                   T            Megalops atlanticus                                    tarpon

                        ALBULIDAE
                   I            Albula vulpes                                          bonefish (rare in Lake Worth)

                        MURAENIDAE
                   I            Echidna catenata                                       chain moray
                   T            Gymnothorax funebrqis                                   green moray
                   I            Gymnothorax moringa                                    spotted moray
                   I            Muraena miliarqis                                       goldentail moray
                   I            Uropterygius diopus                                    marbled moray

                        OPHICHTHIDAE
                   T            Myrophis punctatus                                     speckled worm eel

                        CLUPEIDAE
                                undetermined sp
                   T            Brevoortia smithi                                      yellowfin menhaden
                   T            Brevoortia tyrannus                                    Atlantic menhaden
                                Harenguld sp.                                          sardine
                   I            Harenguld clqupeold                                     false pilchard
                   I            Harenguld humeralis                                    redear sardine
                   T            Harenguld jaguana                                      scaled sardine
                   I            Jenkinsia lamprotaenia                                 dwarf herring
                                Jenkinsia majua                                        little-eye herring
                   T            Opisthonerna oglinum                                   Atlantic thread herring
                   T            Sardinella aurita                                      spanish sardine

                        ENGRAULIDAE
                                Anchoa sp.                                             anchovy
                                Anchoa cayorum                                         Key anchovy
                   T            Anchoa hepsetus                                        striped anchovy
                                Anchoa lamprotaenia                                    longnose anchovy
                   T            Anchoa Iyolepis                                        dusky anchovy
                   T            Anchoa mitchilli                                       bay anchovy

                        SYNODONTIDAE
                   T            Synodus foetens                                        inshore lizardfish
                   I            Rachinocephalus myops                                  snakefish

                        CYPRINIDAE
                   T            Notropis maculatus                                     taillight shiner

                        ARIIDAE
                   T            Ariopsqis felis                                         sea catfish
                   T            Bagre marinus                                          gafftopsail catfish

                        BATRACHOIDIDAE
                   T            Opsanus beta                                           gulf toadfish
 












                         ANTENNARIIDAE
                    I            Antennarius ocellatus                                   ocellated frogfish
                    T            Antennarius scaber                                      splitlure frogfish
                    I            Histrio histrio                                            sargassum fish

                         OGCOCEPHALIDAE
                    I            Ogcocephalus nasutus                                    shortnose batfish
                    I            Ogcocephalus radiatus                                   polka-dot batfish

                         EXOCOETIDAE
                    I            Cypselurus heterurus                                     Atlantic flyingfish

                         HEMIRAMPHIDAE
                    I            Hemiramphus brasiliensis                                ballyhoo
                    I            Hyporhamphus unifasciatus                               halfbeak

                         BELONIDAE
                                 Strongylura sp.                                         needlefish
                    T            Strongy1ura marina                                      Atlantic needlefish
                    T            Strongylura notata                                      redfin needlefish
                    T            Strongylura timuca                                      timucu
                    T            Tylosurus acus                                          agujon

                         CYPRINODONTIDAE
                    T            Floridichthys carpio                                     goldspotted killifish
                    T            Fundulus confluentus                                    marsh killifish
                    T            Fundulus grandis                                         gulf killifish
                    T            Rivulus marmoratus                                      rivulus


                         POECILIIDAE
                    T            Heterandria formosa                                     least killifish
                    T            Poecilia latipinna                                      sailfin molly

                         ATHERINIDAE
                    T            Membras martinica                                       rough silverside
                    T            Menidia beryllina                                       inland killifish

                         FISTULARIIDAE
                    I            Fistularia tabacaria                                    bluespotted cornetfish

                         SYNGNATHIDAE
                    T            Hippocampus erectus                                     lined seahorse
                    T            Hippocampus zosterae                                    dwarf seahorse
                                 Syngnathus sp.                                          pipefish
                    T            Syngnathus floridae                                     dusky pipefish
                    T            Syngnathus louisianae                                   chain pipefish
                    I            Syngnathus pelagicus                                    sargassum pipefish
                    T            Syngnathus scovelli                                     gulf pipefish
 












                        SCORPAENIDAE
                   I           Scorpaena bergi                                        goosehead scorpionfish
                   I           Scorpaena calcarata                                    smoothhead scorpionfish
                   T           Scorpaena grandicomis                                  plumed scorpionfish

                        TRIGLIDAE
                               Prionotus sp.                                          Searobin
                   I           Prionotus ophryas                                      bandtail searobin
                   I           Prionotus scitulus                                     leopard searobin
                   I           Prionotus tibulus                                     bighead searobin

                        CENTROPOMIDAE
                   T           Centropomus pectinatus                                 tarpon snook
                   T           Centropomus undecimalis                                common snook

                        SERRANIDAE
                               Alphestes afer                                         mutton hamlet
                   I           Diplectrum formosum                                    sand perch
                   T           Epinephelus itajara                                    jewfish
                               Epinephelus morio                                      red grouper
                   I           Hypoplectrus unicolor                                  butter hamlet
                   I           Serranus tigrinus                                      harlequin bass
                   I           Serranus tortugarum                                    chalk bass

                        PRIACANTHIDAE
                   I           Pristigenys alta                                         short bigeye

                        APOGONIDAE
                   I           Apogon binotatus                                       barred cardinalfish
                   I           Apogon pseudomaculatus                                 twospot cardinalfish
                   I           Apogon xenus                                           sponge cardinalfish
                   I           Phaeoptyx pigmentaria                                  dusky cardinalfish

                        POMATOMIDAE
                   T           Pomatomus saltatrix                                     bluefish


                        RACHYCENTRIDAE
                   I           Rachycentron canadum                                   cobia

                        ECHENEIDAE
                   I           Echeneis naucrates                                     sharksucker


                        CARANGIDAE
                               undetermined sp.                                       jack
                   I           Alectis ciliaris                                       African pompano
                   I           Caranx bartholomaei                                    yellow jack
                   I           Caranx crysos                                          blue runner
                   T           Caranx hippos                                          crevalle jack
                   T           Caranx latus                                           horse-eye jack
                   I           Caranx ruber                                           barjack
                   I           Decapterus macarellus                                   mackerel scad
                   I           Decapterus punctatus                                    round scad
 










                                 Elagatis bipinnulata                                     rainbow runner
                    T            Oligoplites saurus                                       leatherjacket
                    I            Selar cramenophthalmus                                   bigeye scad
                    T            Selene vomer                                             lookdown
                    I            Seriola dumerili                                         greater amberjack
                                 Trachinotus sp.
                                 Trachinotus carolinus                                     Florida pompano
                    T            Trachinotus falcatus                                      permit
                                 Trachinotus goodei                                        palometa

                         CORYPHAENIDAE
                    I            Coryphaena hippurus                                      dolphin

                         LUTJANIDAE
                    I            Lutjanus analis                                           mutton snapper
                    T            Lutjanus apodus                                           schoolmaster
                    I            Lutjanus cyanopterus                                      cubera snapper
                    T            Lutjanus griseus                                          mangrove (gray) snapper
                    T            Lutjanus synagris                                         lane snapper
                    I            Ocyurus chrysurus                                        yellowtail snapper
                    I            Rhomboplites aurorubens                                   vermilion snapper

                         LOBOTIDAE
                    T            Lobotes surinamensis                                     tripletail

                         GERREIDAE
                    T            Diapterus sp.
                    T            Diapterus auratus                                        Irish pompano
                    T            Diapterus plumieri                                       striped mojarra
                    T            Eucinostomus sp.                                         mojarra
                    T            Eucinostomus argenteus                                   spotfin mojarra
                    T            Eucinostomus gula                                        silver jenny
                    T            Eucinostomus harengulus                                  tidewater mojarra
                    I            Eucinostomus jonesi                                      slender mojarra
                    T            Eucinostomus melanopterus                                flagfin mojarra
                    T            Gerres cinereus                                          yellowfin mojarra
                                 Gerres sp.                                               mojarra
                    T            Ulaema lefroyi                                           mottled mojarra

                         HAEMULIDAE
                    I            Anisotremus virginicus                                     porkfish
                                 Haemulon sp.                                             grunt
                    I            Haemulon album                                           margate
                    T            Haemulon aurolineatum                                    tomtate
                    I            Haemulon flavolineatum                                   French grunt
                    I            Haemulon macrostomum                                     Spanish grunt
                    T            Haemulon parrai                                          sailors choice
                    I            Haemulon plumieri                                        white grunt
                    I            Haemulon sciurus                                         bluestriped grunt
                    I            Haemulon striatum                                        striped grunt
                    T            Othopris chrysoptera                                     pigfish
 












                        SPARIDAE
                               undertermined sp.
                   T           Archosargus probatocephalus                           sheepshead
                   T           Archosargus rhomboidalis                              sea bream
                   I           Calamus sp.                                           porgy
                   I           Calamus penna                                          sheepshead porgy
                               Diplodus argenteus                                    silver porgy
                   T           Diplodus holbrooki                                    spottail pinfish
                   T           Lagodon rhomboides                                    pinfish

                        SCIAENIDAE
                               undetermined sp.                                      drum
                   T           Bairdiella chrysoura                                  silver perch
                   T           Cynoscion arenarias                                   sand seatrout
                   T           Cynoscion nebulosus                                    spotted seatrout
                   I           Equetus acuminatus                                    high-hat
                   I           Equetus lanceolatus                                   jackknife - fish (rare)
                   T           Leiostomus xanthurus                                  spot
                   I           Menticirrhus americanus                               southern kingfish
                   T           Micropogonias undulatus                               Atlantic croaker
                   I           Odontoscion dentex                                    reef croaker
                   T           Pogonias cromis                                       black drum
                   T           Sciaenops ocellata                                    red drum
                   I           Umbrina coroides                                      sand drum


                        MULLIDAE
                   I           Mulloidichthys martinicus                             yellow goatfish

                        KYPHOSIDAE


                   T           Kyphosus sectatrix                                     Bermuda chub

                        EPHIPPIDAE
                   T           Chaetodipterus faber                                  Atlantic spadefish

                        CHAETODONTIDAE
                               Chaetodon capistratus                                   foureye butterflyfish
                   I           Chaetodon ocellatus                                   spotfin butterflyfish
                   I           Chaetodon sedentarius                                 reef butterflyfish (rare)
                   I           Chaetodon striatus                                    banded butterflyfish

                        POMACANTHIDAE
                   I           Holacanthus bemudensis                               blue angelfish
                   I           Holacanthus ciliaris                                  queen angelfish
                   I           Holacanthus tricolor                                  rock beauty
                   I           Pomacanthus arcuatus                                  gray angelfish
                   I           Pomacanthus paru                                      French angelfish

                        POMACENTRIDAE
                   I           Abudefduf saxatilis                                   sergeant major
                               Chromis cyanea                                        blue chromis (rare)
                               Chromis multilineata                                  brown chromis
 









                               Microspathodon chrysurus                                yellowtail damselfish (rare)
                               Pomacentrus ? diencaeus (juvenile)                      longfin damselfish
                               Pomacentrus dorsopunicans                              dusky damselfish
                               Pomacentrus leucostictus                                beaugregory
                               Pomacentrus planifrons                                  threespot damselfish
                               Pomacentrus partitus                                    bicolor damselfish
                               Pomacentrus variabilis                                  cocoa damselfish


                         LABRIDAE
                               Bodianus rufus                                          Spanish hogfish
                               Bodianus pulchellus                                     spotfin hogfish (rare)
                               Doratonotus megalepis                                   dwarf wrasse
                               Halichoeres garnoti                                     yellowhead wrasse
                               Halichoeres maculipinna                                 clown wrasse
                               Halichoeres pictus                                      painted wrasse
                               Halichoeres radiatus                                    puddingwife
                               Hemipteronotus novacula                                pearly razorfish
                               Thalassoma bifasciatum                                 bluehead wrasse


                         SCARIDAE
                               Cryptomus roseus                                        bluelip parrotfish
                               Scarus croicensis                                        striped parrotfish
                               Scarus quacamaia                                        rainbow parrotfish
                               Scarus taeniopterus                                      princess parrotfish
                               Scarus vetula                                            queen parrotfish
                               Sparisoma sp.                                           parrotfish
                               Sparisoma chysopterum                                 redtail parrotfish
                               Sparisoma radians                                       bucktooth parrotfish
                               Sparisoma rubripinne                                    redfin parrotfish
                               Sparisoma viride                                       stoplight parrotfish

                         MUGILIDAE
                               Mugil sp.                                               mullet
                 T             Mugil cephalus                                          striped mullet
                 T             Mugil curema                                           white mullet
                 T             Mugil gaimardianus                                      redeye mullet
                 T             Mugil trichodon                                         fantail mullet

                         SPHYRAENIDAE
                               Sphyraena sp.
                 T             Sphyraena barracuda                                     great barracuda
                 T             Sphyraena borealis                                      northern sennet
                 T             Sphyraena picudilla                                     southern sennett

                         POLYNEMIDAE
                 I             Polydactylus oligodon                                   littlescale threadfin

                         PISTOGNATHIDAE
                 T             Opistognathus maxillosus                                mottled jawfish
 












                         CLINIDAE
                    I           Acanthemblemaria aspera                                 roughhead blenny
                    I           Coralliozetus bahamensis                                blackhead blenny (rare)
                    I           Labrisomus nuchipinnis                                  hairy blenny
                    T           Paraclinus fasciatus                                    banded blenny
                    T           Paraclinus grandicomis                                   horned blenny
                    I           Paraclinus nigripinnis                                  blackfin blenny

                         BLENNIIDAE
                    I           Hypleurochilus aequipinnis                               oyster blenny
                    I           Hypleurochilus bermudensis                              barred blenny
                    T           Lupinoblennius nicholsi                                 highfin blenny

                         GOBIIDAE
                                undetermined sp.                                        goby
                    T           Bathygobius soporator                                   frillfin goby
                    I           Coryphopterus glaucofraenum                              bridled goby
                                Gobionellus sp.                                         goby
                    T           Gobionellus boleosoma                                  darter goby
                    T           Gobionellus saepepallens                                dash goby
                    T           Gobionellus smaragdus                                   emerald goby
                                Gobiosoma sp.                                           goby
                    T           Gobiosoma bosci                                         naked goby
                    I           Gobiosoma gemmatum                                      frecklefin goby*
                    I           Gobiosoma longipala                                     twoscale goby
                    I           Gobiosoma oceanops                                      neon goby
                    T           Gobiosoma robustum                                      code goby
                    T           Lophogobius cyprinoides                                   crested goby
                    T           Microgobius gulosus                                     clown goby
                    T           Microgobius microlepis                                  banner goby

                         ACANTHURIDAE
                    I           Acanthurus chirurgus                                     doctorfish
                    I           Acanthurus coeruleus                                    blue tang

                         SCOMBRIDAE
                                Scomberomorus cavalla                                   king mackerel
                                Scomberomorus maculatus                                 spanish mackerel
                                Scomberomorus regalis                                     cero

                         STROMATEIDAE
                    I           Psenes cyanophrys                                       freckled driftfish

                         BOTHIDAE
                                Bothus sp.                                              flounder
                    I           Bothus ocellatus                                        eyed flounder
                    T           Citharichthys macrops                                    spotted whiff
                    T           Citharichthys spilopterus                               bay whiff
                    T           Paralichthys albigutta                                  gulf flounder
                                Syacium sp.                                             flounder
                    T           Syacium micrurum                                        channal flounder
                    T           Syacium papillosum                                      dusky flounder
 












                         SOLEIDAE
                    T           Achirus lineatus                                       line sole
                    I           Gymnachirus melas                                       naked sole

                         CYNOGLOSSIDAE
                                Symphurus sp.                                          tonguefish
                    T           Symphurus arawak                                       Caribbean tonguefish
                    T           Symphurus plagiusa                                      blackcheek Tonguefish

                         BALISTIDAE
                                Balistes sp.                                           triggerfish
                    I           Canthidermis maculatus                                 rough triggerfish

                         MONACANTHIDAE
                    I           Aluterus scriptus                                       scrawled filefish
                    I           Cantherhines pullus                                    orange spotted filefish
                                Monacanthus sp.                                        filefish
                    T           Monacanthus ciliatus                                   fringed filefish
                    T           Monacanthus hispidus                                   planehead filefish

                         OSTRACIIDAE
                    T           Acanthostracion quadricomis                            scrawled cowfish
                                Lactophrys sp.                                         trunkfish
                    I           Lactophrys bicaudalis                                  spotted trunkfish
                    T           Lactophrys trigonus                                     trunkfish
                    T           Rhinesomus triqueter                                    smooth trunkfish

                         TETRAODONTIDAE
                    I           Canthigaster rostrata                                  sharpnose puffer
                                Sphoeroides sp.                                        puffer
                    I           Sphoeroides dorsalis                                   marbled puffer
                    T           Sphoeroides nephelus                                   southern puffer
                    T           Sphoeroides spengleri                                  bandtail puffer
                    T           Sphoeroides testudineus                                checkered puffer

                         DIODONTIDAE
                    T           Chilomyctetus schoepfi                                  striped burrfish
                    I           Diodon histrix                                         porcupinefish
 











                                                                                     TABLE 7



                                                                 FISH COLLECTED IN LAKE WORTH LAGOON



                      MAP        FAMILY                                                                       COMMON NAME
                                 GENUS, SPECIES


                                 BRANCHIOSTOMIDAE
                      1.         Asymmetron sp.                                                                 lancelet
                      2.         Asymmetron lucayanum                                                           sharptail lancelet

                                 CARCHARHINIDAE
                      3.         Carcharhinus limbatus                                                        blacktip shark


                                 RAJIDAE
                      4.         Raja eglanteria                                                              clearnose ray

                                 DASYATIDAE
                      5.         Dasyatis americana                                                            southern stingray
                      6.         Dasyatis sabina                                                              Atlantic stingray
                      7.         Dasyatis sayi                                                                bluntnose stingray
                      8.         Gymnura micrura                                                               smooth butterfly ray

                                 ELOPIDAE
                      9.         Elops saurus                                                                 ladyfish

                                 MEGALOPIDAE
                      10.        Megalops atlanticus                                                           tarpon

                                 ALBULIDAE
                      11.        Albula vulpes                                                                bonefish

                                 OPHICHTHIDAE
                      12.        Myrophis punctatus                                                           speckled worm eel


                                 CLUPEIDAE
                      13.        undetermined sp
                      14.        Brevoortia smithi                                                             yellowfin menhaden
                      15.        Brevoortia tyrannus                                                            Atlantic menhaden
                      16.        Harengula sp.                                                                sardine
                      17.        Harengula clupeola                                                           false pilchard
                      18.        Harengula humeralis                                                           redear sardine
                      19.        Harengula jaguana                                                             scaled sardine
                      20.        Jenkinsia lamprotaenia                                                         dwarf herring
                      21.        Jenkinsia majua                                                              little-eye herring
                      22.        Opisthonema oglinum                                                             Atlantic thread herring
                      23.        Sardinella avrita                                                            spanish sardine


                                 ENGRAVLIDAE
                      24.        Anchoa sp.                                                                   anchovy
                      25.        Anchoa cayorum                                                               key anchovy
                      26.        Anchoa hepsetus                                                               striped anchovy
                      27.        Anchoa lyolepis                                                              dusky anchovy
                      28.        Anchoa mitchilli                                                              bay anchovy

                                 SYNODONTIDAE
                      29.        Synodus foetens                                                               inshore lizardfish
                      30.        Trachinocephalus mypos                                                       snakefish

                                 CYPRINIDAE
                      31.        Notropis maculatus                                                          taillight shiner
 














                                  ARIIDAE
                      32.         Ariopsis felis                                                                  sea catfish
                      33.         Bagre marinus                                                                  gafftopsail catfish

                                  BATRACHOIDIDAE
                      34.         Opsanus beta                                                                  gulf toadfish

                                  ANTENNARIIDAE
                      35.         Antennarius ocellarus                                                         ocellatcd frogfish
                      36.         Histrio histrio                                                                  sargassum fish
                      37.         Antennaris scaber                                                             splitlure frogfish

                                  OGCOCEPHALIDAE
                      38.         Ogcocephalus radiatus                                                          polkadot batfish
                      39.         Ogcocephalus nasutus                                                             shortnose batfish

                                  HEMIRAMPHIDAE
                      40.         Hypolhamphus unifasciatus                                                     halfbeak

                                  BELONGIDAE
                      41.         Strongylura sp.                                                                needlefish
                      42.         Strongylura marina                                                              Atlantic needlefish
                      43.         Strongylura notaia                                                             redfin needlefish
                      44.         Strongylura timuca                                                             timucu
                      45.         Tylosurus acus                                                                agujon

                                  CYPRINODONTIDAE
                      46.         Floridichthys carpio                                                            goldspotted killifish
                      47.         Fundulus confluentus                                                           marsh killifish
                      48.         Fundulus grandis                                                              gulf killifish

                                  POECILIIDAE
                      49.         Heterandria formosa                                                             least killifish
                      50.         Poecilia latipinna                                                            sailfin molly

                                  ATHERINIDAE
                      51.         Membra martinica                                                             rough silverside
                      52.         Menidia beryllina                                                             tidewater silverside

                                  FISTULARIIDAE
                      53.         Fistularia tabacaria                                                             bluespotted cornetfish

                                  SYNGNATHIDAE
                      54.         Hippocampus erectus                                                            fined seahorse
                      55.         Hippocampus zosterae                                                           dwarf seahorse
                      56.         Syngnathus sp.                                                                pipefish
                      57.         Syngnathus floridae                                                           dusky pipefish
                      58.         Syngnathus louisianae                                                              chain pipefish
                      59.         Syngnathus pelagicus                                                          sargassum pipefish
                      60.         Syngnathus scovelli                                                              gulf pipefish

                                  SCORPAENIDAE
                      61.         Scorpaena bergi                                                               goosehead scorpionfish
                      62.         Scorpaena calcarata                                                           smoothhead scorpionfish
                      63.         Scorpaena grandicomis                                                          plumed scorpionfish

                                  TRIGLIDAE
                      64.         Preionotus sp.                                                                Searobin
                      65.         Prionotus ophryas                                                                bandtail searobin
                      66.         Prionotus scitulus                                                               leopard searobin
                      67.         Prionotus tribulus                                                              bighead searobin

                                  CENTROPOMIDAE
                      68.         Centropomus pectinatus                                                        tarpon snook
                      69.         Centropomus undecimalis                                                        common snook
 














                                   SERRANIDAE
                      70.          Diplectrum formosum                                                              sand perch

                                   PRIACANDOE
                      7L           Pristigenys alta                                                                short bigeye

                                   APOGONIDOE
                      72.          Apogon pseudomaculatus                                                           twospot cardinalfish
                      73.          Phaeoptyx pigmentaria                                                           dusky cardinalfish

                                   POMATOMIDAE
                      74.          Pornatomus saltatrix                                                              bluefish


                                   CARANGIDAE
                      75.          undetermined sp.                                                                  jack
                      76.          Carany bartholomaei                                                                yellowjack
                      77.          Caranx cuysos                                                                    blue runner
                      78.          Carany hippos                                                                     crevalle jack
                      79.          Carany latus                                                                      horse-eye jack
                      80.          Decapterus macarellus                                                            mackerel scad
                      81.          Decapterus punctatus                                                                round scad
                      82.          Oligoplites saurus                                                               leatherjacket
                      83.          Selene vomer                                                                     lookdown
                      84.          Seriola sp.                                                                      amberjack
                      85.          Trachinotus sp.
                      86.          Trachinotus carolinus                                                             Florida pompano
                      87.          Trachinotus Falcatus                                                             permit

                                   CORYPHAENIDAE
                      88.          Coryphaena hippurus                                                              dolphin

                                   LUTJANIDAE
                      89.          Lutjanus analis                                                                    mutton snapper
                      90.          Lutjanus apodus                                                                  schoolmaster
                      91.          Lutjanus griseus                                                                  mangrove (gray) snapper
                      92.          Lutjanus synagris                                                                lane snapper
                      93.          Rhomboplites aurorubens                                                              vermilion snapper

                                   LOBOTIDAE
                      94.          Lobotes surinamensis                                                                  tripletail

                                   GERREIDAE
                      95.          Diapterus sp.
                      96.          Diapterus auratus                                                                  Irish pompano
                      97.          Diapterus plumieri                                                                striped mojarra
                      98.          Eucinostumus sp.                                                                 mojarra
                      99.          Eucinostumus argenteus                                                                spotfin mojarra
                      100.         Eucinostumus gula                                                                      silver jenny
                      101.         Eucinostumus harengulus                                                              tidewater mojarra
                      102.         Eucinostumus jonesii                                                                   slender mojarra
                      103.         Eucinostumus melanopterus                                                              flagfin mojarra
                      104.         Gerres cinereus                                                                  yellowfin mojarra
                      105.         Gerres sp.                                                                       mojarra
                      106.         Ulaema lefroyi                                                                   mottled mojarra

                                   POMADASYIDAE
                      107.         Haemulon sp.                                                                     grunt
                      108.         Haemulon aurolineatum                                                            tomtate
                      109.         Haemulon flavolineatum                                                           French grunt
                      110.         Haemulon macrostomum                                                            spanish grant
                      ill.         Haemulon parrai                                                                 sailors choice
                      112.         Haemulon sciurus                                                                 bluestriped grunt
                      113.         Haemulon striatum                                                                 striped grunt
                      114.         Orthopris chrysoptera                                                            pigfish
 













                                  SPARIDAE
                       115.       undertermined sp.
                       116.       Archosargus probatocephalus                                                       sheepshead
                       117.       Archosargus rhomboidalis                                                        sea bream
                       118.       Calamus sp.                                                                    porgy
                       119.       Calamus penna                                                                  sheepshead porgy
                       120.       Diplodus holbrooki                                                              spottail pinfish
                       121.       Lagodon rhomboides                                                             pinfish

                                  SCIAENIDAE
                       122.       undetermined sp.                                                                drum
                       123.       Bairdiella chrysoura                                                           silver perch
                       124.       Cynoscion arenarios                                                                sand seatrout
                       125.       Cynoscion nebulosus                                                           spotted seatrout
                       126.       Leiostomus xanthurus                                                           spot
                       127.       Menticirrhus americanus                                                         southern kingfish
                       128.       Micropogonias undulatus                                                          Atlantic croaker
                       129.       Odontoscion dentex                                                               reef croaker
                       130.       Pogonias cromis                                                                black drum
                       131.       Sciaenops ocellata                                                                 red drum
                       132.       Umbrina coroides                                                               sand drum

                                  EPHIPPIDAE
                       133.       Chaetodipterus faber                                                             Atlantic spadefish

                                  POMACANTHIDAE
                       134.       Pomacuathus arcuatus                                                              gray anglefish

                                  POMACENTRIDAE
                       135.       Abudefduf saxatilis                                                            sergeant major

                                  LABRIDAE
                       136.       Halichoeres maculipinna                                                          clown wrasse
                       137.       Hemipteronotus novacula                                                         pearly razorfish

                                  SCARIDAE
                       138.       Cryptomus roseus                                                                 bluelip parrotfish
                       139.       Sparisoma sp.                                                                 parrotfish
                       140.       Sparisoma chrysopterum                                                          redtail parrotfish
                       141.       Sparisoma radians                                                               bucktooth parrotfish

                                  MUGILIDAE
                       142.       Mugil sp.                                                                       mullet
                       143.       Mugil cephalus                                                                  striped mullet
                       144.       Mugil curema                                                                    white mullet
                       145.       Mugil gaimardianus                                                               redeye mullet
                       146.       Mugil trichodon                                                                   fantail mullet

                                  SPHYRAENIDAE
                       147.       Sphyraena sp.
                       148.       Sphyraena barracuda                                                            great barracuda
                       149.       Sphyraena borealis                                                              northern sennet
                       150.       Sphyraena picudilla                                                               southern sennett

                                  POLYNEMIDAE
                       151.       Polydactylus oligodon                                                           littlescale threadfin

                                  CLINIDAE
                       152.       Paraclinus fasciatus                                                             banded blenny

                                  BLENNIIDAE
                       153.       Lupinoblennius nicholsi                                                        highfin blenny
 














                                   GOBIIDAE
                       154.        undetermined sp.                                                                   goby
                       155.        Bathygobius soporator                                                                frillfin goby
                       156.        Coryphopterus glaucofraenum                                                          bridled goby
                       157.        Gobionellus sp.                                                                     goby
                       158.        Gobionellus boleosoma                                                               darter goby
                       159.        Gobionellus smaragdus                                                                emerald goby
                       160.        Gobiosoma sp.                                                                      goby
                       161.        Gobiosoma bosci                                                                    naked goby
                       162.        Gobiosoma longipala                                                                twoscale goby
                       163.        Gobiosoma gemmatum                                                                 frecklefin goby
                       164.        Gobiosoma robustum                                                              code goby
                       165.        Lophogobius cyprinoides                                                            crested goby
                       166.        Microgobius gulosus                                                                    clown goby
                       167,        Microgobius microlepis                                                             banner goby

                                   NOMEIDAE
                       168.        Psenes cyanophrys                                                                  freckled driftfish

                                   BOTHIDAE
                       169.        Bothus sp.                                                                           Bounder
                       170.        Bothus ocellatus                                                                    eyed flounder
                       171.        Citharichthys macrops                                                               spotted whiff
                       171         Citharichthys spilopterus                                                             bay whiff
                       173.        Paralichthys albigutta                                                              gulf flounder
                       174.        Syacium sp.                                                                         flounder
                       175.        Syacium micrurum                                                                    channal flounder
                       176.        Syacium papillosum                                                                 dusky flounder

                                   SOLEIDAE
                       177.        Achirus lineatus                                                                    line sole


                                   CYNOGLOSSIDAE
                       178.        Symphurus sp.                                                                        tonguefish
                       179.        Symphurus arawak                                                                   caribbean tonguefish
                       180.        Symphurus plagiusa                                                                    blackcheek tonguefish

                                   BALISTIDAE
                       181.        Balistes sp.                                                                       triggerfish

                                   MONACANTHIDAE
                       182.        Ahuterus scriptus                                                                       scrawled filefish
                       183.        Monacanthus sp.                                                                    filefish
                       184.        Monacanthus ciliatus                                                                   fringed filefish
                       185.        Monacanthus hispidus                                                                   planehead filefish

                                   OSTRACIIDAE
                       186.        Acanthostracion guadricomis                                                          scrawled cowfish
                       187.        Lactophrys sp.                                                                     trunkfish
                       188.        Lactophrys trigonus                                                                  trunkfish
                       189.        Lactophrys trigueter                                                                smooth trunkfish

                                   TETRAODONTIDAE
                       190.        Sphoeroides sp.                                                                    puffer
                       191.        Sphoeroides nephelus                                                                southern puffer
                       192.        Sphoeroides spengleri                                                              bandtail puffer
                       193.        Sphoeroides testudineus                                                             checkered puffer

                                   DIODONTIDAE
                       194.        Chilomycterus schoepfi                                                               striped burrfish
                       195.        Diodon histrix                                                                       porcupinefish


                       *Questionable identification (not known to occur in North America)
 










                                                                                                     LEGEND




                                 DEIS - DEIS. D.. R. WALESKY. H. RUDOLPH. 1983.                                   BENTHIC SAMPLE IN AUGUST 1982.
                                        AREA PLANNING BOARD STUDY - UNPUBLISHED
                                 MH# - HEDGEPETH. M.. 1985. FLA DNR STUDY - UNPUBLISHED                          DAY SEINE TRAWLS BIWEEKLY BETWEEN SEPTEMBER 1982 AND AUGUST 1983.
                                 OH - HERREMA. 0.. J. REED. AND J. VAN MONTFRANS. 1973. -   UNPUBLISHED           COLLECTIONS BY ROTENONE. DIP NETS AND SEINE TRAWLS. DAYTIME IN
                                                                                                                  DECEMBER 1972. AND JANUARY 1973
                                 RR# - REHRER. R.. 1977. UNIV. OF MIAMI STUDY - UNPUBUSHED                       DAY TRAWLS, DAY AND NIGHT GILL NETS COLLECTED DURING MAY AND OCTOBER
                                                                                                                  1973 AND 1974, AUGUST 1974 AND JANUARY 1975.
                                 LW# - ROGERS, R.. 1970. US EPA STUDY - UNPUBLISHED                               NIGHT TRAWLS COLLECTED BETWEEN JULY 29 AND AUGUST 30. 1970.
                                 KW# - WOODBURN, K., 1962. FLA BOARD OF CONSERVATION STUDY         UNPUBLISHED     COLLECTIONS BY SEINE TRAWLS AND PUSHNETS DAYTIME IN AUGUST 1961.








                                 Numbers Correspond To Fish Taxa Listed in Table 7














































                     
                                       Palm Beach County                                                                                                                      D&M JOB NO.
                                       Department of                            LAKE WORTH LAGOON                                                                           20335-001-049
                                       ENVIRONMENTAL
                                       RESOURCES                                KNOWN OCCURRENCES
                                       MANAGEMENT                                              OF FISH
 







                                        jr@






                                                                                                                         LITTLE
                                                                                                                         LAKE
                                                                                                                         WORTH











                                                                                                                                                    LW1
                                                                                                                                                    5 24 32 69
                                                                                                                                                    100 114 124 Q7
                                                                                                                                                    133 156    1 74    1W

                                                             k                                                     LWI

                                                                                 KW1
                                                                                 32 55 a2 91
                                                                                 100 116 125 144             KWI
                                                                                 184 190 194








                                                                                           \N




                                                                                 LW2
                                                                                 24 32301
                                                                                 127 100174108177                                  LW2


                                                                                 MMI
                                                                                 1 69il
                                                                                 13 161716
                                                                                 19 20 23 2,
                                                                                 27 Za 29 30                                                                                                                                 014
                                                                                 32 40 42 43 KW2                                                                                                                             9 10 12 28
                                                                                 44 54 55 57 13 28 82 83                                                                                                                     Z9 32 42     .6
                                                                                 58 59w63  a 9  1  97    100                                                                                                                 47 48 60 69
                                                                                 970 77 79 1921 12,    44    4,                                KW2 MH                                                                        74 78 91 94
                                                                                 860 82V87 185 190
                                                                                 999                                                                                                                                                  102 106
                                                                                 ag123                                                                                                                                       1164110016 117 121
                                                                                 .1. Voga,0.9                                                                                                                                125  131 138 144
                                                                                 I                                                         LW3                                                                               148  155 159 161
                                                                                 104 107 1108 109 LW3                                                                                                                        164  165 169 177
                                                                                 0,Al 12113 24 32 59 100                                                               DH                                                    193    4
                                                                                                                                                                                                                                  19
                                                                                 1116 117 120 124 127 175 179
                                                                                 1214 123125126                          11
                                                                                 132 133 42 143
                                                                                 144 145 1146 148                                          'YON
                                                                                 158 160 162167                                  MUN
                                                                                 171 172 173 la4
                                                                                 151 1                                                 ISLANDk
                                                                                 1 a92 19863 18994 191

                                                                                                                                                                                                                                 KW4
                                                                                                                                                                                                                                 7 13 56 W
                                                                                       LW4                                                                                                                                       89 91    '00     07
                                                                                       24 32 54 21                                                                                                                                 12 114 121 148
                                                                                       92 100 107     116                                                                                                                         1152 164 185 190
                                                                                       127 174 177 IaO
                                                                                       193 194                                                                                                                                    194
                                                                                                                /L












                            A                                                                                -------------------                                       LITTLE                                KW4                                      A'j
                                                             EARMAN RIVER (C-17)                                                                                       MUNYON
                                                                                                                                                                       ISLAND
                                                 Palm Beach County
                                                 Department of                                      LAKE WOI?TH                         LAGOON                      0           1000           2000                      D&M        JOB NO.
                                                                                                                                                                                                                      20335-001-049
                                                 ENVIRONMENTAL
                                                 RESOURCES                                           KNOWN OCCURRENCES                                                        SCAU                                              FIGURE
                          ItMANAGEMENT                                                        I                       OF FISH                                                 (FEET)                      I                  -   .





                                                                                                                                                                                        )r,,.3 56 GO
                                                                                                                                                                                            91    '00  107
                                                                                                                                                                                           2 111 2     1
                       A                                                                                                                     LITTLE                                     1112 164 1185 119406     At
                                                    EARMAN               RIVER (C- 17)                                          KIN3         MUNYON                          KW4
                                                                                                                                             is
                                                                         KW3                                                                                                                      KW5
                                                                         99 100 148 184                                             LIN5                                                          24 28 43 57
                                                                         115                                                                                                                      52 67 si "
                                                                                                                                                                                                  100 125 146 154
                                                                                                                                                                                                  157  169 177   190

                                                                         LIN5
                                                                         5 24 32 64
                                                                         100 116 174 177
                                                                         LING                                                                                                      KV5
                                                                         24 32 64 69
                                                                         78  112 87 92
                                                                         100, 116 127   165
                                                                         177                                                                     V--;/


                                                                                                                                                    C=                   . . . . . . . . . . . . . . . . . .

                                                                         LW7
                                                                         24 32 64 92                                             W
                                                                         100 133 174    193                                                         1


                                                                                        Kws 43 99 100
                                                                                        148


                                                                                        LWO
                                                                                        32 38 39 5.4
                                                                                        70 72 100 108
                                                                                        174


                                                                                  BLUE HERON BRIDGE
                                                                                        L"                                                                                 SINGER
                                                                                        24
                                                                                        70   100 175 176                                                                   ISIAND



                                                    MH2
                                                    1314   17 20
                                                    23 26  27 28
                                                    29 41  42 43
                                                    44 45  52 53                                                               M
                                                    57 58  61 53
                                                    70 76  77 83
                                                    as 87  89 91
                                                    92 95  go 99
                                                    100 10, 102 103
                                                    10.4 106 107 Joe                             DEIS                              EANUT
                                                    116 117 lie 120                             2
                                                    121 125 128 135                                                              ISLAND
                                                    137 139 140 141                                                                                 KW7
                                                    143 144 148 149                                                                                                    LAKE WORTH INLET
                                                    ISO151 157  158
                                                    170 17, '73 182
                                                    IM 184 187  ISO
                                                    169 192 193 195
                                                                                             RRI-I                        DEIS                                                           XvWn7 43 90 99
                                                                                                                                                                                         19
                                                                                             63 92                                                                                       100 111


                                                                                                                                                                                        RRI-3
                                                                                                                                                                                        99
                                                                                                                                      RRI


                                                                                             RRI-2
                                                                                             1
                                                                                              1                                        LINII                                            LW"
                                                                                             7 176                                                                                      24 32 64 70
                                                                                                                                                                                        100 127 174






                       B                                                                                                                                                                                         B0




                                         Palm Beach County
                                         Department of                                  LAKE WORTH LAGOON                                 0         1000 2000                           D&M JOB
                                         ENVIRONMENTAL                                                                                                                               20335-001 049
                                         RESOURCES                                      KNOWN OCCURRENCES                                           SCALE                                    FIGURE
                                         MANAGEMENT                                                 OF FISH                                         (FEET)                                     10-C









                    B
                                                                                                                                                                100 127 133 175




                                                                                                                     W12






                                                                                                                                                                LW13
                                                                                                                                                                24 32 04 70
                                                                                                                                                                92 100 107 174
                                                                                                                                                                190 194


                                                                                                                    W13                                            RR2-3
                                                                                  RR2-1                                                                            176
                                                                                  54 99                                   RR2

                                                                                  RR2-2
                                                                                  go                                                                               LW14
                                                                                                                                                                   32 91 100 111
                                                                                                                                                                   116 130 177





                                                                                                                        L014                                       RR3-2
                                                                                                                                                                   lie


                                                                                            RR3-I


                                                                                                                         RR3





                                                                                         L*15
                                                                                         24 69 100 116
                                                                                         127 174                        W15
                      0







                                                                                       LWI 6
                                                                                       24 92 100 116                                                                   RR4-i
                                                                                       127 M                            WIG                                           33 37

                                                                                                                                                                    RR4-2
                                                                                                                  RR                                                32 92 116


                                                                                       LW17
                                                                                       32 07 83 100                     W17
                                                                                       127 130 177






                                                           FLAGLER MEMORIAL BRIDGE                                                          RR5-2
                                                                                       RR5-1                                                " 117 172
                                                                                       29 172                       RR5
                                                                                                                                          Me
                                                                                                                                          32 100 130 133
                                                                                                                   LWIS                   104



                                                                                                                                             RR6-2
                         CLEAR                                                                                                         ---    2 33
                    C         LAYCE                                                    RR -1                                                                                        cil
                                   Palm Beach County
                                   Department of                         LAKE WORTH LAGOON                              0       1000        2000                D&M JOB NO.
                    ,AAkA                                                                                                                                    20335-001-049
                                   ENVIRONMENTAL                                                               Is
                                   RESOURCES                             KNOWN OCCURRENCE                                      SCAM                                FIGURE
                                   MANAGEMENT                       I                  OF FISH                        I        (FEET)                                 10-D           I







                          CLEAR                                                                                                              32 33
                    c                                                                                                                                                              C

                               LAKE

                                                                                                                                          Lwlg
                                                                                                                                          5 32 100 127
                                                                                                                    LW19                  133 153 178 t90

                                                                          ROYAL PARK BRIDGE




                                                                                   RR7-1
                                                                                   116 194                          RR7



                                                                                   LW20
                                                                                   24 32 100 127
                                                                                   130                              LW20










                                                                                                                                      ED






                                                                             LW21
                                                                             2
                                                                               3
                                                                             4 32 100 127
                                                                             153





                                                                                     RRS-4
                                                                                    32



                                                                                                                                                                    RR8-3
                                                                                       RR8-I                                                                        " 115 119 172
                                                                                      sa 100 119 172                         RR8                                    194

                                                                                                                                 ---  D

                                                                                             LW22
                                                                                            22 24 32 100
                                                                                            127 130 153
                                                                                                                                                                    LW23
                                                                                                                                                                    22 24 32 100
                                                                                                                               W23                                  116 127 153 193
                                                       SOUTHERN BOULEVARD BRIDGE
                                                                                                                                  ru








                                                                                          RR9-1
                                                                                          100 116
                                                                                                                         RR9



                                                                                                                                             U)


                                                                                           RR9-2
                                                                                           32 116                                                               LW24
                                                                                                                                                            1   24 81 100 116
                                                                                                                                                                127 .130 193 194
                                                                                2 100 127
                                                                                                                          LW21
                                                                                                                                             RRI
                                                                                                                                             32






                                                                                                                                          LW,9
                                                                                                                                             :.2
                            @AR
                                     E


                                                                                                @172@
                                                                                           01 111






























                                    Department of                        LAKE WORTH LAGOON                             0        1000 2000                     D& M JOB NO.
                                                                                                                                                                ,q
                                    ENVIRONMENTAL                                                                                                           20335-001-049
                                                                                                               Is                C
                                    RESOURCES                            KNOWN OCCURRENCE                                                                         FIGURE
                                                                                                                               SCAU
                    4FIMANAGEMENT                                                     OF FISH                                  (FEET)                               fo-E
                                                                                                                                                                      N-M --- w-ft"









                                                                                                                                                                                                                  LW24
                                                                                                                                                                                                                  14 81 100 116
                                                                                                                                                                                                                  27130 193 194  D$


                                                                                                                                                                                                                  LW25
                                                                                                                                                                                                                  22 24 32 34
                                                                                                                                                                                                                  'a 100 124 127
                                                                                                                                                                                                                  110 153 174 190



                                                                                                                                                                                                                  RR10-3
                                                                                                         MH3   -----------                                                                                        ga 132 194
                                                                                                         5 9                                                               MN3
                                                                                                         Is 19 20 25
                            D@j                                                                          26 27 28 29    RR10-1
                                                                                                         32 42 43 4.4   32
                                                                                                         60 63 69 77
                                                                                                         78 82 117 91
                                                                                                         9
                                                                                                         a9,   '00                                        RRIO
                                                                                                         101 81029104 116                                                  UNTERS            i
                                                                                                         117 126 142 143                                                                                          LW26
                                                                                                         144145148  155                                                    ISLAND                                 24 32 91 100
                                                                                                         58 16 1 3  1
                                                                                                         1172 17'7 1692 1969                                                                                      16 1215 127 12a
                                                                                                         194            3RR10- 2                                                                                  115316  174 93
                                                                                                                        32 116                                         V26





                                                                                                                                                                                                                  NE OF RR11-2
                                                                                                                                                                                                                  3 9 32 33
                                                                                                                                                                                                                  6
                                                                                                                                                                                                                  68 9 75Z78
                                                                                                                                                                                                                  95 25 1 5 142
                                                                                                                                                                    RRII                                          RR11-2
                                                                                                                                                                                                                  32 68 91 116
                                                                                                                           1-1                                                                                    128 133
                                                                                                                        3R2RIG9 128 132





                                                                                                                                                              W28



                                                                                                                        LW28
                                                                                                                        24 3 97 127                                        IBIS
                                                                                                                        12a 74 177 150                                     ISLE

                                                                                                                                                                                                                  RR12-2
                                                                                                                                                                                                                  16

                                                                                                                                                                  RR12

                                                                                                                        RR12-1                                         LW29
                                                                                                                        32 54 iia 128



                                                                                                                                                                                                                  LW29
                                                                                                                                                                                                                  24 32 97 116
                                                                                                                                                                                                                  127 12a 133 190





                                                                                                                                                                                                                  LW30
                                                                                                                                                                                                                  5 24 32 97
                                                                                                                                                                       LW30                                       12712a 130 133
                                                                                                                                                                                                                  175 180




                                                                                                                                                                                                                  RR13-2
                                                                                                                             RR13-1                                                                               193 194
                                                                                                                             32 69  97 116
                                                                                                                             128 172 ,   so   W                        R13


                                                                                                                                                                                                                  LW31
                          E                                                                              IAKE AVENUE BRIDGE                                            LW31                                                      Es
                                                                                                                                                                           'S@
                                                                                                                                                                       @IW26@















                                             P lm Beach County
                                             D:partment of                                  LAKE WORTH LAGOON                                        @O @10002000                                                 D&M JOB NO.
                                             ENVIRONMENTAL                                                                                  is                                                       20335-001-049
                                             RESOURCES                                       KNOWN OCCURRENCE                                                    SCAU                                             FIGURE
                        ItMANAGEMENT                                                   I                       OF FISH                                                                                            10-F









                                                                                                                                                                             LW31
                                                                                                                                                                      1      5 24 32 7
                                                                                                                                           LW31                       1      100 128 130 175
                     E                                                                LAKE AVENUE BRIDGE                                                                     --- ---        Et






                                                                                                   LW32
                                                                                                   24 32 100 116
                                                                                                   127 128 130 133
                                                                                                   1751801931 94                        LW32







                                                                                                                                                                             LW33
                                                                                                                                                                             5 24 32 82
                                                                                                                                                                             100 115 127 133
                                                                                                                                                                             175 177 180  190
                                                                                                                                                                             193


                                                                                                                                       LW33


                                                                                                   4 32 128 172
                                                                                                   ISO 193



                                                                                                                                                                             RR14-2
                                                                                                                                                                             100 116 132




                                                                                                   LW34
                                                                                                   824 7 100
                                                                                                   127 12:130 175                  W3
                                                                                                   06 192 iS3 194                                                            RR15-2
                                                                                                                                     15                                      32 128
                                                                                                   RR15-1                                                                    LW35
                                                                                                   5 29 ga 100                                                               5 24 32 65
                                                                                                   116 171                                                                   100 116 127 130
                                                                                                                                                                             175 t77 178 193
                                                                                                                                                                             194


                                                                                                                             W35

                                                                                 OCEAN AVENUE BRIDGE







                                                                           LW35
                                                                           24 32 91 92
                                                                           100 10a 116             127
                                                                           12   133   156          174                      LW36
                                                                           1192

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                                      Palm Beach County
                                      Department of                          LAKE WORTH LAGOON                                0       1000 2000                       D&M JOB NO.
                                      ENVIRONMENTAL                                                                                                                  20335-001-049
                                      RESOURCES                              KNOWN OCCURRENCES                                         SCAIE                                 FIGURE
                     WMANAGEMENT                                                                   OF FISH                            (FEET)                                 10-G









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                                                                                                                                                            14 32   "M
                                                                                                                                                            69 75 78 83
                                                                                                                                                            95      105 116 122
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                                                                                32 35  38 99                                                                128 133 142

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                                                                                      164                                                                   RR18-2
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                                    PaLm Beach County
                                    Department of                           LAKE WORTH LACOON                               0         1000          2000             D&M JOB NO.
                                    ENVIRONMENTAL                                                                         I 1-0@                                    20335-001-049
                                    RESOURCES                               KNOWN OCCURRENCE                                         SCAU                                 FIGURE
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             S.11 ENDANGERED, THREATENED AND RARE SPECIES

                 AND SPECIES OF SPECIAL CONCERN



             The shoreline of Lake Worth Lagoon is almost completely developed and densely populated
             leaving very few native areas suitable to support appreciable numbers of protected
             (endangered threatened and rare species and species of special concern) plant and/or
             animal species. All known protected plants occur either in John D. MacArthur State
             Recreation Area located in northeast Lake Worth Lagoon or Gemini Botanical Gardens
             located in Manalapan just north of South Lake Worth Inlet. While some protected species
             may occur elsewhere along the shore of Lake Worth Lagoon, their presence is unrecorded
             at this time. Protected animals which occur in the study area are transient in nature, making
             it difficult to document all known occurrences. For example, manatees could be in any area
             of the lagoon at any time.


             Table 8 is a listing of protected plant and animal species which have been identified in or
             are likely to naturally inhabit the Lake Worth Lagoon study area. The list includes a total
             of 40 species including 13 plants, I mammal, 4 reptiles, 18 birds, and 4 fishes. The status
             of each species and the listing agencies or organizations are noted on the table. No attempt
             was made to address beach and dune species in this report.


             Table 9 is a listing of protected plant species which are present at Gemini Botanical
             Gardens (GBG), a private botanical garden established in 1986. The site was originally
             cleared of native vegetation in 1946 when a private residence and garden were built. One
             area of native hammock remains. The goals of the GBG are to cultivate and preserve the
             wide species diversity and plant density once found in the native ecosystem, and to assemble
             a documented collection of native plants that might be used for such purposes as
             safeguarding the germplasm of endangered species. Most listed plants have been introduced

             to GBG since 1986.




                                                         -29-








             In addition to species fisted on the tables Halophila johnsond, a species of seagrass which
             occurs in abundance in Lake Worth Lagoon has been designated by the Florida Natural
             Areas Inventory as a species of limited distribution and recommended for inclusion on the
             state list of threatened plant species. Halophild johnsonni may be more abundant in Lake
             Worth Lagoon than anywhere else in the state (personal communications, W.J. Kenworthy,
             NMFS, December, 1990).


             Figure 11 depicts known occurrences, probable sighting locations, and desirable habitat for
             naturally occurring protected species. The information presented on the map was derived
             from the following sources: municipal comprehensive plans; Florida Natural Areas
             Inventory; MacArthur State Recreation Area records; Florida Department of Natural
             Resources; Gemini Botanical Gardens; Florida Game and Freshwater Fish Commission;
             Pine Jog Environmental Studies Center; ERM records and observations.


             The map's symbols are located in areas where listed species would most likely occur. All
             listed plants are documented as occurring within the boundaries of MacArthur State
             Recreation Area or Gemini Botanical Gardens. All manatee locations are situated in areas
             that would be attractive to manatees. These areas include grass beds (feeding areas),
             freshwater discharges, and the Florida Power and Light Riviera Beach Power Plant
             discharge (warm water). The sea turtle locations are in grassbed areas suitable for feeding.
             Other reptile species symbols are located in suitable areas of habitat. Wading bird symbols
             are located in intertidal areas suitable for feeding. Shorebird symbols are located on sandy
             or pebbly beaches. Other bird species symbols are located in areas in which ERM made
             sightings. Snook symbols are located in areas which contain structure such as bridges, oyster
             bars and rock outcrops. Other fish species symbols are located in areas of suitable habitat.










                                                        -30-












                                                              TABLE 8



                 ENDANGERED SPECIES, THREATENED SPECIES, RARE SPECIES AND SPECIES OF
                   SPECIAL CONCERN THAT MIGHT BE FOUND IN AND AROUND LAKE WORTH
                                        LAGOON, PALM BEACH COUNTY, FLORIDA

                                                                                                   STATUS
                LATIN NAME                             COMMONNAME


                PLANTS


                Aoroslichum aureun,                    Golden Leather Fern                             E
                Acrostichum danaeifolium               Giant Leather Fern                              T
                Cereus pentagonus                      Dildo Cactus                                    T
                Chrysophyllum oliviforme               Satin Leaf                                      E
                Encyclia tampensis                     Butterfly Orchid                                T
                Ophioglossum palmatum                  Hand Fern                                       E
                Opuntia humifusa                       Twistspine Prickly Pear                         T
                Opuntia stricta                        Prickly Pear                                    T
                Phlebodium aureum                      Golden polypody                                 T
                Psilotum nudum                         Whisk Fern                                      T
                Tillandsia paucifolia                  Wild Pine                                       T
                Tillandsia valenzuelana                Soft Leaf Wild Pine                             T
                Vittaria lineata                       Shoestring Fern                                 T

                VERTEBRATES


                MAMMALS

                Trichecus manatus latirostris          West Indian Manatee                             E


                REPTILES


                Caretta caretta caretta                Loggerhead Turtle                               T
                Chelonia mydas mydas                   Green Turtle                                    E
                Gopherus polyphemus                    Gopher Tortoise                                 SSC
                Drymarchon corais couperi              Indigo Snake                                    SSC

                BIRDS


                Ajaia ajaja                            Roseate Spoonbill                               SSC
                Aramus guarana                         Limpkin                                         SSC
                Casmerodius albus                      Great Egret                                     SSC
                Charadrius melodus                     Piping Plover                                   T
                Egretta rufescens                      Reddish Egret                                   SSC
                Egretta thula                          Snowy Egret                                     SSC
                Egretta tricolor                       Tricolored (Louisiana) Heron                    SSC
                Egretta caerulea                       Little Blue Heron                               SSC
                Eudocimus albus                        White Ibis                                      SSC
                Falco peregrinus tundrius              Artic Peregrine Falcon                          E
                Haematopus pallialus                   American Oystercatcher                          SSC
                Nyctanassa violacea                    Yellowcrowned Nigh Heron                        SSC










              Nyclicorax nycticorax                  Blackcrowned Nigh Heron                       SSC
              Pandion haliaetus                      Osprey                                        SSC
              Pelecanus occidentalis                 Brown Pelican                                 SSC
              Plegadis falcinellus                   Glossy Ibis                                   SSC
              Sterna antillarum                      Least Tern                                    T
              Vireo altiloquus                       Blackwhiskered Vireo                          R

              FISHES


              Centropomus undecimalis                Common Snook                                  SSC
              Gobionellus stigmaturus                Spottail Goby                                 SSC
              Oostethus lineatus                     Opossum Pipef ish                             R
              Rivulus marmoralus                     Rivulus                                       SSC


              STATUS DESIGNATION KEY:


              E=Endangered
              T=Threatened
              R=Rare
              SSC=Species of Special Concern


              The status of the above listed plant and animal species was determined by one or more of the
              following agencies and/or publications:

              Florida Game and Freshwater Fish Commission; United States Fish and Wildlife Service;
              Florida Department of Agriculture; Rare and Endangered Biota of Florida (Pritchard Series).












                                                               TABLE 9




                                               Plants of Gemini Botanical Gardens


               NAME                                             COMMON NAME                           STATUS


               Acacia choriophylla                              Tamarindillo                             E
               Acoelorrhaphe wrighth                            Paurotis palm                            T
               Anemia adiantifolia                              Pine fern                                T
               Bletia purpurea                                  Pine pink                                T
               Campyloneurum phyllitidis                        Strap fern                               T
               Cassia keyensis                                  Big Pine Partridge Pea                   T
               Cereus eriophorus var. fragrans                  Fragrant woolbearing cerus               E
               C. gracilis                                      West coast prickly apple                 E
               C. robinii                                       Tree cactus                              E
               Clusia rosea                                     Balsam apple                             E
               Commelina gigas                                  Climbing dayf lower                      T
               Cordia sebestena                                 Geiger tree                              E
               Cucurbita okeechobeensis                         Okeechobee gourd                         E
               Cupania glabra                                   Cupania                                  E
               Cyrtopodium punctatum                            Cowhorn orchid                           E
               Dryopteris ludoviciana                           Florida shield fern                      T
               Encyclia cochleata                               Shell orchid                             T
               Equisetum hymale                                 Scouring rush                            T
               Eugenia confusa                                  Redberry ironwood                        T
               E. rhombau                                       Red stopper                              E
               E. simpsonii                                     Simpson's ironwood                       T
               Guaiacum sanctum                                 Lignumvitae tree                         E
               Hippomane manicella                              Manchineel                               T
               Hypelate trifoliata                              Inkwood                                  T
               Ilex krugiana                                    Krug's holly                             E
               Ipomoea microdactyla                             Wild potato morning glory                E
               Jacquemontia reclinata                           Beach clustervine                        E
               Jacquinia keyensis                               Joewood                                  T
               Lycopodium cernuum                               Nodding club moss                        T
               Lycopodium dichotomum                            Hanging club moss                        E
               Nephrolepsis biserrata                           Boston f ern                             T
               Nolina atopocarpa                                Fl, Beargrass                            E
               N. brittoniana                                   Brittons beargrass                       E
               Oncidium variegatum                              Dancing lady orchid                      E
               Opuntia cubensis                                 Prickly pear                             T
               0. spinosissima                                  Semaphore cactus                         E
               Peperomia floridana                              Everglades                               E
               Polyrrhiza lindenii                              Ghost orchid                             E
               Polystachya flavescens                           Pale flowered polystachya                T
               Pseudophoenix sargentii                          Buccaneer palm                           E
               Rhipsalis baccifera                              Mistletoe cactus                         E
               Roystonea elata                                  Fl, Royal palm                           E
               Sabal etonia                                     Scrub palmetto                           T
               Sabal minor                                      Dwarf palmetto                           T
               Strumpfia maritima                               Pride-of-big-pine                        E










               Suriana maritima                              Bay cedar                              E
               Swietenia mahogani                            West Indian mahogany                   T
               Tetrazygia bicolor                            Tetrazygia                             T
               Thelypteris kunthii                           Aspidium fern                          T
               Tillandsia flexuosa                           Twisted air plant                      T
               T.setacea                                     Wild pine air plant                    T
               Trismeria trifoliata                          Braken f ern                           T
               Vanilla planifolia                            Commercial vanilla                     T
               Verbena maritima                              Coastal vervain                        E
               Zanthoxylum flavum                            Yellowhart                             E





                                            SPECIES                     LEGEND                                 STATUS

                                            PLANTS
                                          1 Acrostichum aureum - Golden Leather Fern                               E
                                          2 Acrostichum danaeifolium - Giant Leather Fern                          T
                                          3 Cereus pentagonus - Dildo Cactus                                        T
                                          4 Chrysophyllum oliviforme - Satin          Leaf                         E
                                          5 Encyclia tampensis - Butterfly Orchid                                   T
                                          6 Ophioglossum palmatum - Hand Fern                                     E
                                          7 Opuntia humifusa - Twistspine Prickly          Pear                    T
                                          8 Opuntia stricta - Prickly Pear                                          T
                                          9 Phlebodium aureum - Cabbage Palm               Fern                    T
                                          10 Psilotum nudum - Whisk Fern                                           T
                                          11 Tillandsia paucifolia - Wild Pine                                     T
                                          12 Tillandsia valenzuelana - Soft Leaf Wild Pine                          T
                                          13 Vittaria lineata - Shoestring Fern                                    T

                                            VERTEBRATES
                                            MAMMALS
                                          14 Trichecus manatus latirostris - West Indian Manatee                    E


                                            REPTILES
                                          15 Caretta caretta caretta - Loggerhead Turtle                            T
                                          16 Chelonia mydas mydas - Green Turtle                                    E
                                          17 Gophetus polyphemus - Gopher Tortoise                                 SSC
                                          18 Drymarchon corais couperi - Indigo Snake                              SSC


                                            BIRDS
                                   (W)    19 Ajaia ajaja - Roseate Spoonbill                                       SSC
                                   (W)    20 Aramus guarana - Limpkin                                              SSC
                                          21 Casmerodius albus - Great Egret                                      SSC
                                   (W)    22 Charadrius melodus - Piping Plover                                     T
                                   (W)    23 Egretta rufescens - Reddish Egret                                     SSC
                                   (W)    24 Egretta thula - Snowy Egret                                           SSC
                                   (W)    25 Egretta tricolor   - Tricolored   Heron                            SSC
                                   (W)    26 Egretta caerulea    -  Little Blue Heron                             SSC
                                   (W)    27 Eudocimus albus   -      White Ibis                                    SSC
                                          28 Falco peregrinus tundrius -      Arctic Peregrine Falcon            E
                                          29 Haematopus palliatus - American Oystercatcher                        SSC
                                   (W)    30 Nyctanassa violacea - Yellow-crowned Night Heron                      SSC
                                   (W)    31 Nycticorax nycticorax - Block-crowned Night Heron                     SSC
                                          32 Pandion haliaetus - Osprey                                            SSC
                                          33 Pelecanus occidentalis - Brown Pelican                                SSC
                                   (W)    34 Plegadis falcinellus - Glossy Ibis                                    SSC
                                          35 Sterna antillarurn - Least Tern                                        T
                                          36 Vireo altiloquus - Block-whiskered Vireo                               R


                                            AMPHIBIANS
                                            (none)

                                            FISHES
                                          37 Centropomus undecimalis - Common Snook                                SSC
                                          38 Gobionellus stigmaturus - Spottail Goby                               SSC
                                          39 Oostethus lineatus - Opossum Pipefish                                  R
                                          40 Rivulus marmoratus - Rivulus                                          SSC


                                   (W)    = WADING BIRD GROUP
                                   E = Endangered
                                   T = Threatened
                                   R = Rare
                                   SSC    = Species of Special Concern

                                   The    status of the above listed plant and animal species was determined by
                                   one    or more of the following agencies and/or publications:

                                   Florida Game and Freshwater Fish Commission: United States Fish and Wildlife
                                   Service; Florida Department of Agriculture: Rare and Endangered Biota of
                                   Florida (Pritchard Series)


                           Palm Beach County                                                                                   D&M JOB NO.
                           Department of                  LAKE WORTH LAGOON                                                  20335-001-049
                           ENVIRONMENTAL                  ENDANGERED, THREATENED
                           RESOURCES                        AND RARE SPECIES AND                                                  FIGURE
                           MANAGEMENT                   SPECIES OF SPECIAL CONCERN                                                  11 -A
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                      Department of           LAKE WORTH       LAGOON       0     1000 2000          D&M JOB NO.
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                      RESOURCES                 AND RARE SPECIES AND             SCALE                  FIGURE
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             5.12 MARINAS AND DOCKS


             Forty seven (47) major marinas comprising 2558 wet boat slips and 2156 dry storage racks
             are located in the Lake Worth Lagoon study area. In addition, hundreds of private docks
             have been constructed by shoreline residential property owners, and several commonly
             utilized anchorage areas for live aboard boats are known to exist. Public boat launching
             facilities exist at eight locations.


             Locations of marinas and boat ramps were determined from municipal comprehensive plans,
             the Riviera Beach DRI, and field observations. Boat docks were identified from the 1989
             "Redi" aerial photographs. Public access areas include parks, inlets and public docks where
             water activities take place. Marina characteristics were determined from a telephone or
             personal interview survey. The information gathered included name of facility, location, the
             number of wet boat slips, the number of dry boat racks, and status of fuel, boat repair and
             sewage pump-out facilities. Boat ramps were inspected to determine their launching and
             vehicle parking capacities. The information from this survey has been compiled and is
             presented on Table 10. The locations of docks, marinas, boat ramps and public access areas
             located within the study area are depicted on Figure 12. The numbers on the map
             correspond to the marinas as numbered on Table 10.


             Boats, marinas and associated activities are known to have cumulative impacts which
             contribute to water quality degradation. Metals emitted from anti-fouling paints, nutrients
             and bacteria contained in wastes which are flushed overboard, oils and greases associated
             with power boats, and chemicals utilized for boat maintenance are all potential sources of
             pollution associated with boats and marinas. In addition, boating activity can directly impact
             habitat resources by propeller dredging, boat wake induced erosion, and disturbance of
             wildlife (e.g., boat collisions with manatees).





                                                         -31-










              Tbe survey indicates that Lake Worth Lagoon has storage/dock facilities for almost five
              thousand boats. This number does not include docking facilities associated with private
              homes and condominiums, boats anchored offshore, or boats launched at boat ramps. Of
              the forty seven commercial marina facilities servicing Lake Worth Lagoon, eleven allow live
              aboard boats, while only three provide sewage pump out facilities. Eighteen marinas provide
              boat repairs, and twenty one have ftieling facilities. While major single sources of pollution
              are not likely, it is probable that the cumulative effect of these activities contributes to water
              quality degradation in Lake Worth Lagoon.





































                                                            -32-
















                                                                                                                                     TABLE 10


                                                                                                      LAKE WORTH MARINA AND BOAT RAMP SURVEY                                 1990

                                                                                                                                                                   * = planned

                                                                                                        OF WET                 OF DRY                  YIN         YIN                   YIN                   Y/N                   COMMENT'S
                                                                                                         Slips                RACKS                 FUEL          BOAT                 LIVE               PUMP OUT
                                                                                                                                                                 REPAIR             ABOARDS               FACILITIES


                                       MARINAS

                             I. Charter boats (Boynton Beach)                                             33                      0                    N
                                                                                                  L                                                           I      N                   N                     N
                           F2 7WT,,eEdge Marina luc.(Boynton Beach)                                       41                      0                    Y             N                   N                     N
                                                                                                          20                      0                      -F N                            N                     N
                           F Club N..tico (Boynton Beach)                                                                                              N
                             4.  Palm Beach Marina (Hypobno)                                              0.                      220                  Y             Y                   N                     N
                             S.  Palm Beach Yacht Center (Hypoluzo)                                       60                      300                  Y             Y                   N                     N
                             6.  Sportsman Park (Lantana)                                                 11                      0                    N             N                   N                     N             Boat ramp
                             7.  Burger Boat Comparzy (Lautama)                                           S4                      a                    Y             Y                   N                     N
                             &   Gundlach's Marina (Lantana)                                              $29                     350                  Y             Y                   N                     'N
                             9.  Murrelle Marina (Lantana)                                                40                      0                    N             Y                   N                     N
                             10. Flagler Yacht Club (West Palm Beach)                                     22                      0                    N             N                   N                     N             Priv,to
                             11. The Harbor Towers & Marina (West Palm Beach)                             11                      0                    0             N                   N                     N             Private
                             12 Town of PB Municipal Docks (Pahn Beach)                                             L             0                    N             N                   Y                     Y
                             13. Palm Harbor Marina (West Palm Beach)                                     166                     0                    Y             N                   Y                     N

                             14. Flagler Marina (Yacht Club) (Palm Beach)                                 45                      0                    Y             N                   Y                     N

                             15. Spencer Boat Company (West Palm Beach)                                   100                     0                    Y             Y                   N
                             16. Rybovich Diesel & Marine (West Palm Beach)                               57                      0                    N             Y                   N                     N                               and Service
                                                                                                                                                                                                                          I  Boat Construction
                            @
                             17. Flotilla Club (West Palm Beach)                                          16                      10                   N             N                   N                     N          I

                             I& Sailfish Club of Florida (Palm Beach)                                     95                      16                   Y             N                   Y                                   Prismte
                             13





                             Is

                             187.. flotria Ch
                                 SiI.,h Clu













                                                                                                                                    TABLE 10
                             19. Cracker Bay Boat Works lite. (Rivkra Beach)                                S                    ISO            I     N      J     Y                    Y                     N            Serivice facility

                             20. Riviera Bch Municipal Marina (Riviera Beach)                               137                  190                  Y            N                    Y                     y

                             21. Old Slip Marina (Rh*ra Beach)                                              so                   0                    N            Y                    Y                     N

                             2Z Pelican Pier (Riviera Beach)                                                20                   -0                   N            N                    N                     N
                             -23. Perry Oceanographics Inc. (Riviera Beach)                                 3    T-              0                    N            N                    N                     N        T-For large vessels
                             24. Hudgin Fish Company Inc. (Riviera Beach)                                   3S                   0                    Y            N                                          N        Tz-ercial fish company

                             25. Rybovich Diesel & Marine Service Inc. (North) Riviers. Beach               31                   10                   Y            Y                    N                     N            Service facility

                             26. Tanner's Marine Center (Riviera Beach)                                     10                   0                    N            Y                    N                     N            Service facility
                             27. Newport Cove Marine Center (Riviera Beach)                                 S                    200                  Y            Y      T             N                     N

                             28. Blue Heron Docks (Riviers. Beach)                                          20                   0                    N            N                    Y                     N
                             29. Saillish Marina (Palm Beach Shores)                                        100                  0                    Y            N  -T                Y                     N

                             30. Buccaneer Marina (Palm Beach Shores)                                       is                   0                    Y            N                    N                     N

                             31. Cannonsport Marina (Pahn Beach Shores)                                     29                   0                                 N                    _N                    N

                             32 Captains Walk Condominium (Palm Beach Shores)                               19                   0                    N            N                    N                     N            Private
                             33, Intercoastal Club (Palm Beach Shores)                                      12                   0                    N            N                    _N        T           N            Private

                             34. Lake Park Marina (lAke Park)                                               224                  0                    N            N                    N                     N            Boat ramps

                             3S. Bassett Boat Company (North Pabn Beach)                                    11                   90                   Y            Y                    N                     N

                             36. Pandise Harbor & Vfflas (North Paint Beach)                                34                   0                    N            N                    N                     N            Private
                             37. Lotts Brothers Bait, Tackle & Marina (North Paint Beach)                   26                   0                    Y            N                    N            I        N         I

                             38. Anchorage Park Marina (North Palm Beach)                                   30                   195                               N                    N                     N            Boat ramp

                             39. North Palm Beach Marina (North Palm Beach)                                 ISO                  0                    Y            Y                    Y                     N
                             40. Old Port Cove Marina (South) (North Palm Beach)                            300                  a                    N            N                    _N           I        N
                            @
                             41. Old Port Cove Marina (North)                                               91                   0                    N            N                    N                     N

                             42 Harbor Point Marina (Palm Beach Gardens)                                    7S                   0                    Y            N                    Y                     Y
                            F39.
                            F40

                             4 - Old Port I
                               1


                               2. Harbor P.














                                                                                                                                        TABLE 10
                               41 Marina at Twelve Oaks (North Palm Beach) Condominium                        66                        0           1     N      J      N       I           N                      N              Private
                                                                                                                                                                                            N           T (propoged)
                               44. Smerel Harbor Inc. (Palm Beach Gardens)                                    160                       319               Y             Y       I

                               4S. Seminole Boat Yard (Palm Beach Gardens)                                    9                         60                N             Y                   N                      N               rvke facility
                               46. E & H Boatworks Inc. (Palm Beach Gardens)                                  10                        12                N             Y                   N          J           N            Service facility

                               47. The Way's Club (`PaIm Beach Garde-)                                        12                   4"S                    N             Y                   N                      N             Service facility

                               PUBLIC BOAT RAMPS LOCATION                                                 RAMPS           *RAMP CAPACITY                  ON SITE TRAILER PARKING SPACES                        OFF SITE TRAILER PARKING SPACES

                               1. Boat Club Park (Boynton)                                                    4                         6                                     90                                                      60

                               2 Sportsman Park (Lantana)                                                     2                         4                                     is                                                      is

                               3, Bryant Park    (Lake Worth)                                                 2                         4                                     38                                                      36

                               4. Currie Park    (Rk4era Beach)                                               4                                                               70                                                      0

                               S. Phil Poster Park (Riviera Beach)                                            2                         4                                     66                                                      0
                            IE
                            'E





















                               6. Lake Park (LAke Park)                                                       4                         4                                     so                                                      0

                               7. Anchorage Park (North Pain Beach)                                           t                         2                                     10                                                      0

                               & Juno Park       (Juno Beach)                                                                                                                 is                                                      0

                               *Ramp Capacity = the number of vehicles that c4n bunch boatg at one time at the facility.






                                                             LEGEND

                              MARINAS                                PUBLIC BOAT RAMPS               LOCATION



                        CHARTER BOATS                                      130AT CLUB PARK           BOYNTON
                     (DWATERS EDGE MARINA                                  SPORTSMAN PARK            LANTANA
                     @ CLUB NAUTICO                                        BRYANT PARK               LAKE WORTH
                     (DPALM BEACH MARINA                                   CURRIE PARK               WEST PALM BEACH
                     @ PALM BEACH YACHT CENTER                             PHIL FOSTER  PARK         RIVIERA BEACH
                     @ SPORTSMAN PARK                                    &LAKE PARK MARINA           LAKE PARK
                     @BURGER BOAT COMPANY                                & ANCHORAGE PARK            NORTH PALM BEACH
                     @ GUNDLACH'S MARINA                                 &JUNO PARK                  JUNO BEACH
                     0 MURRELLE MARINA
                     @THE HARBORTOWERS AND MARINA
                     (E)FLAGLER YACHT CLUB
                     @TOWN OF PALM BEACH MUNICIPAL DOCKS
                     @PALM HARBOR MARINA                                         PUBLIC PIER/PUBLIC ACCESS
                     (qFLAGLER MARINA (YACHT CLUB)
                     @ SPENCER BOAT COMPANY                                      BOAT DOCK
                     @RYBOVICH DIESEL AND MARINE SERVICE INC. (SOUTH)
                     @FLOTILLA CLUB
                     @SAILFISH CLUB OF FLORIDA
                     @CRACKER BOY BOAT WORKS INC.
                     @RIVIERA BEACH MUNICIPAL MARINA
                     @OLD SLIP MARINA
                     @ PELICAN PIER
                     @ PERRY OCEANOGRAPHICS INC.
                     (B HUDGINS FISH COMPANY INC.
                     @ RYBOVICH DIESEL AND MARINE SERVICE INC. (NORTH)
                     @ TANNER'S MARINE CENTER
                     @ NEW PORT COVE MARINE CENTER
                     @ BLUE HERON DOCKS
                     @ SAILFISH MARINA
                     @ BUCCANEER MARINA
                     @ CANNONSPORT MARINA
                     @ CAPTAIN'S WALK
                     @ INTERCOASTAL CLU13
                     @LAKE PARK MARINA
                     @ BASSETT E30AT COMPANY
                     @ PARADISE HARBOR & VILLAS
                     @ LOTT BROTHERS BAIT, TACKLE AND MARINA
                     @ ANCHORAGE PARK MARINA
                     @ NORTH PALM BEACH MARINA
                     @ OLD PORT COVE MARINA (SOUTH)
                        OLD PORT COVE MARINA (NORTH)
                        HARBOR POINT MARINA
                        MARINA AT TWELVE OAKS CONDOMINIUM
                     (9 SOVEREL HARBOR INC.
                     @ SEMINOLE 130AT YARD
                     @ E & H BOAT WORKS
                     @ THE WAY'S MARINA
               t
                        Palm Beach County
                        Department of             LAKE WORTH LAGOON                                          D&M JOB NO.
                        ENVIRONMENTAL                                                                      20335-001-049
                        RESOURCES                  MARINAS AND DOCKS                                            FIGURE
                        MANAGEMENT             I                                I                       I        12-A











                                              LJ


                                                      jILITTLE,
                          i  46
                                                        LAKE
                              45                        WORTH

                              44

                   UJUH                          43
                   42



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                                                                                         0





                                                            MUNrYON'  '
                                                               ISIAND@




             A
                                                                             LITTLE
                            EARM'AN RIVER      (C- - 17)                     MUNYON
                                                                                                   7
                                                                             ISLAND
                       Palm Beacb County                                                             D&M  JOB NO.
                       Department of          LAKE WORTH LAGOON             0    1000   2000       20335-001-049
                       ENVIRONMENTAL
                       RESOURCES               MARINAS AND DOCKS                 SCALE                 FIME
           I*MANAGEMENT                    I                                     (FEET)       I I       12-B











                                                                35
            A                                                                 LITTLE                                A
                            EARMAN RIVER (C- 17)                              MUNYON
                                                                              ISLAND























                                             BLUE HERON BRIDGE                                 33 32
                                                                                               SINGER
                                                                                               ISLAND

                                                                        25

                                                                        23                     29


                                                                      21


                                                                       PEANUT
                                                       20               ISLAND
                                                        19                                   LAKE WORTH INLET














                                                                  ----------- ----
             B


                      Palm Beach County                                           1000   20           D&M JOB NO.
                      Department of            LAKE WORTH LAGOON             0                       20335-001-049
                      ENVIRONMENTAL                        11
                      RESOURCES                                                   SCALE                  nGURE
            WMANAGEMENT                                                          (FEET)                   12-C









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                                                                      17







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                                      FLAGLER MEMORIAL BRIDGE                14

                                                                            13



                CLEAR
             C                                                                                                       CT
           F                 li

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           @
                   LAKE

                      Palm Beach County                                             000   20,,0        D1111 1013 NO.
                      Department Of            LAKE WORTH LAGOON 0
                      ENVIRONMENTAL                                        .  1-0@                   20335-001-049
                      RESOURCES                 MARINAS AND DOCKS                 SCALE                   FIGURE
            @MANAGEMENT                     I                               I     (FEET)                   f2-D





              C   CLEAR                                                                                                         Cf

                     LAKE






                                                    ROYAL PARK BRIDGE











                                                                                        V)


















                                                                                     FISHERMAN
                                                                                        ISLAND






                                       SOUTHERN BOULEVARD BRIDGE

















                         Palm Beach County                                                                       D&M JOB NO.
                         Department of             LAKE WORTH LAGOON                 0     1000    2000        20335-001-049
                         ENVIRONMENTAL          I                                  I                     I I                    -I
                         RESOURCES                  MARINAS AND DOCKS                     SCAIX                     FIGURE
                         MANAGEMENT                                                       (FEET)                     12-E
                                                                                  wdb@


















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                                                         HUNTERS4
                                                         ISLAND 1.






                                                                j

                         WEST PALM BEACH CANkL (C-51)
                       . . . . . ............. . .. - - - ---------------








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                                                          ISLE
















         E                         LAKE AVENUE BRIDGE                       E?


               Palm Beach County                                         NO.
               Department of   LAKE WORTH LAGOON   0  1000 2000    D&M JOB NO.
               ENVIRONMENTAL                                      20335-001-049
               RESOURCES        MARINAS AND DOCKS     SCALE          FIGURE
        ItMANAGEMENT                              I   (FEET)          f 2-F






            E                                       LAKE AVENUE BRIDGE                                         NOW E








                                                                      IIr-











                                                 OCEAN AVENUE BRIDG




















            F                                                                                                      F
             *
                      Palm Beach County                                                              D&M JOB NO.
                      Department of           LAKE WORTH LAGOON             0     1000 2000         20335-oot-049
                      ENVIRONMENTAL
                      RESOURCES                MARINAS AND DOCKS                 SCALE                  FIGURE
                      MANAGEMENT                                                 (FEET)                  12-C









                                                                                                        F







                                                                       J,












                                                                 BEER CAN
                                                                   ISLAND


                                                                                   OUTH LAKE WORTH
                                                                                  NLET





                         BOYNTON CANAL (C-16)














                             OCEAN AVENUE BRIDGE











                     Tl
                     Department of                                   I     off   III       D&M JOB NO.
                     ENVIRONMENTAL                                                        20836-001-049
                     1
                     RESOURCES            MARINAS AND DOCKS              SCALE                FIGURE
                     I                                                                                   I
                     MANAGEMENT                                          (FEET)               12-H
           re,                                                     I               'Mi









             5.13 WATER QUALI


             5.13.1 Water Chemistry


             Water quality studies have been ongoing in Lake Worth Lagoon since the late 1960's. The
             Environmental Protection Agency conducted a large scale water quality survey in 1969-1970.
             In subsequent years, the USGS, Florida Department of Environmental Regulation (DER),
             Palm Beach County Health Department, and ERM have collected numerous water quality
             data.



             T'he lack of a well organized long term water quality monitoring effort makes it difficult to
             analyze long term water quality trends in great detail. Inconsistencies in sampling locations,
             sampling frequency, methodology and parameters analyzed contribute to this difficulty. In
             an effort to analyze trends in Water Quality for Lake Worth Lagoon, data which is
             contained in STORET, the U.S. Environmental Protection Agency (EPA) water quality data
             base was retrieved for the years 1969 - 1990. For the trend analysis, the Trophic State
             Index, (TSI), which is utilized by Florida Department of Environmental Regulation to
             generate the yearly water quality assessment for the State of Florida (305b report) was
             selected.



             'Me water quality of lakes and estuaries in Florida is described by the TS1 which is a
             measure of the potential for algal growth. The components which make up the TS1 include
             total nitrogen (TN), total phosphorus (T?), chlorophyll-A (CHIA) and Secchi depth (SD).
             The index is based upon a trophic classification scheme developed by R.E. Carlson in 1977
             (Hand, et.al, 1988).


             The first step in calculating the TSI is to average raw data, by months (if enough data is
             available) to adjust for seasonal effects and then calculate the mean of the monthly averages
             for each parameter sampled at each station. In some of the early data total nitrogen
             averages were not available, therefore averages had to be calculated from the raw data.

                                                         -33-








            The next step involves calculating the TSI. The calculations for TSI are consistent with
            DER's most recent water quality evaluations which are explained in the 1988 305b report
            (Hand et.al, 1988).


            Equations which generate the TSI are:


            CHIA = 16.8 + 14.4 x LOG (CHILA value)
            SD = 60 - 30 x LOG (SD value)


            TN = 56 + 19.8 x LOG (TN value)
            TP     18.6 X LOG (T? value x 1000) - 18.4
            TSI    (CHIA + SD + NUTR*) / 3


                   where: LOG      Natural Log
                          : value   ug/l CHIA m SD, mg/l T`P, mg/l TN.


                   where: * means If TN/TP > 30 then NUTR*         TP
                                   If TN/T`P < 10 then NUTR        TN
                                   If 10 < TN/T? < 30 then NUTR* = (T? + TN)/2


            The scale for TSI is from 0 to 100 where a high score indicates eutrophication (high in
            nutrients). DER has outlined the following breakout for evaluating water quality of
            estuaries:

                                                    Estuaries

                                       Good                     0-49

                                       Fair                    50-59

                                       Poor                    60-100



            Lake Worth Lagoon water quality stations with EPA STORET code numbers were located
            from station descriptions found in records from the Florida Department of Environmental

                                                      -34-








             Regulation, Southeast District, Port St Lucie Office's Lake Worth Water Quality Basin
             Assessment Survey for Fiscal year 1985, and from ERM files. The station locations are
             presented on Figure 13.


             'ne TSI of twenty four STORET stations in Lake Worth was analyzed for three time
             periods, 1975-1979, 1980-1984, 1985-1990. For years prior to 1975 there was insufficient data
             to calculate the T'SI. The results of the TSI calculations are presented in Table 11. A
             summary of the TSI trends are presented on Table 12.


             In general, the TSI analysis indicates that water quality either remained fairly constant or
             slightly improved for most stations over the fifteen year period. The average TSI for Lake
             Worth Lagoon stations for the period 1986-1990 is 46, which classifies overall water quality
             at the lower end of the good range. In general, water quality has slightly improved from
             little Lake Worth south to the vicinity of Royal Park Bridge. Water quality in the Earman
             River remains poor, and impacts the lagoon at the confluence point. Water quality of the
             West Palm Beach Canal (C-51) has slightly improved, but the discharge impacts the lagoon
             as far north as Southern Boulevard Bridge, where poor water quality has existed for the
             entire period of record. From C-51 south through the area of study, water quality has
             slightly improved in recent years. Boynton Canal (C-16) exhibits the best water quality of
             the three major canal inflows. This analysis suggests that the major pollution sources are
             the canal inflows, and that poor tidal dilution of the C-51 discharge is compounded near the
             Southern Boulevard Bridge.


             In an effort to determine if a correlation between slightly improving water quality and
             reduction of waste water inflow exists, trends in fecal coliform bacteria were analyzed. Once
             again, a lack of consistent sampling is apparent, making a definitive trend analysis
             impossible. The analysis does indicate declining fecal coliform values at some STORET
             stations. The West Palm Beach Canal (C-51) continues to be the major source of fecal
             coliform. A summary of the fecal coliform. data is presented in Table 13.



                                                         -35-



   mm mm-m m mm mmmm=mm== m




                TABLE 11 : TROPHIC STATE INDEX CALCULATIONS



                     TROPHIC STATE INDEX CALCULATIONS FOR 1975-79                                of Begin      End
                     STORET# Location                                  Station      Type       obs. year      year     SD       NITRO     PHOS       CHLA      TSI

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

                     2BO10723  INTRACOSTAL WWY AT PALM 8 GARDE         21FLA761230  ESTUARY      17      75      79        ND    0.635     0.128         ND    47.01
                     28010724  LITTLE LAKE WORTH AT PGA BLVD BR        21FLA761230  ESTUARY      16      75      79        ND      0.76    0.128         ND    50.57
                     28010725  ICW AT US 1 BRIDGE                      21FLA761230  ESTUARY      17      75      79        ND    0.689     0.147         ND    48.62
                     2BO10726  CANAL C-17 AT ALT AIA BRIDGE            21FLA761230  ESTUARY      18      75      79        ND    2.877     0.212         ND    79.08
                     28010727  EARMAN RIVER AT US 1 BRIDGE             21FLA761230  ESTUARY      15      75      79        ND    0.855     0.135         ND    52.90
                     28010728  LAKE WORTH AT BLUE HERON BLVD BR        21FLA761230  ESTUARY      16      75      79        ND    0.509     0.092         ND    42.63
                     28010734  WP CANAL AT SO. OLIVE AVE BRIDGE        21FLA761230  ESTUARY      is      75      79        ND    1.048     0.172         ND    56.93




                     TROPHIC STATE INDEX CALCULATIONS FOR 1980-85                                of Begin      End
                     STORET# Location                                  Station      Type       obs. year      year     SD       NITRO     PHOS       CHLA      TSI

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

                     28010723  INTRACOSTAL WWY AT PALM 8 GARDE         21FLA761230  ESTUARY        4     80      85       1.8    0.341     0.057       9.3     41.99
                     28010724  LITTLE LAKE WORTH AT PGA BLVD BR        21FLA761230  ESTUARY        7     80      85        ND    0.893     0.211         ND    53.76
                     28010725  ICW AT US I BRIDGE                      21FLA761230  ESTUARY        7     80      85        ND    1.256     0.226         ND    60.51
                     2BO10726  CANAL C-i7 AT ALT AlA BRIDGE            21FLA761230  ESTUARY        7     80      85        ND    2.403     0.214         ND    77.38
                     28010727  EARMAN RIVER AT US 1 BRIDGE             21FLA761230  ESTUARY        7     80      85    0.875     1.567     0.218      19.3     62.78
                     28010728  LAKE WORTH AT BLUE HERON BLVD BR        21FLA761230  ESTUARY      11      80      85       1.85   0.605     0.154           5   42.52
                     28010734  WP CANAL AT SO. OLIVE AVE BRIDGE        21FLA761230  ESTUARY      10      80      85       0.95   1.376     0.234      14.5     59.72
                     28010769  LAKE WORTH AT SOUTHERN BLVD BRDGE       21FLA820904  ESTUARY      10      80      85        ND    1.688     0.525         ND    66.36
                     28010771  ICW AT OCEAN AVE, BOYNTON               21FLA820904  ESTUARY        9     80      85        ND    1.271     0.244         ND    60.75
                     28010M    LITTLE LK WORTH-CNTR, LK WRTH SAS       21FLA841228  ESTUARY        4     80      85       1.7    0.281     0.059      10.3     41.78
                     28010774  MUNYON TRANS W, LK WRTH SAS             21FLA84i228  ESTUARY        4     80      85    1.525     0.242     0.033      11.5     42.41
                     28010775  MUNYON TRANS MID, LK WRTH SAS           21FLA841228  ESTUARY        4     80      85    1.075     0.231     0.067      10.3     45.07
                     28010776  MUNYON TRANS E, LK WRTH SAS             21FLAS41228  ESTUARY        4     80      85    0.925     0.236     0.076       6.2     44.26
                     28010777  E OF ICW WAY MRKR 3, LK WRTH SAS        ZIFLAB4122B  ESTUARN        4     BO      B5    i.575     0.224       0.06     13.7     42.40
                     28010778  CURRIE PK WEST, LK WRTH BAS             21FLAS41228  ESTUARY        4     80      85       1.25   0.330     0.077       8.1     44.75
                     28010779  CURRIE PK MID, LK WRTH BAS              21FLA841228  ESTUARY        4     80      85          1   0.339     0.078       4.7     44.55
                     28010780  CURRIE PK EAST, LK WRTH BAS             21FLAS41228  ESTUARY        4     80      85       1.25   0.340     0.068         10    45.96
                     28010781  LK WRTH AT ROYAL PALM, LKWRTH SAS       21FLA841228  ESTUARY        4     80      85    1.175     0.436     0.079      10.8     48.59
                     2BO10782  ICW HAV MRKR 28, LK WRTH SAS            21FLAS41228  ESTUARY        4     80      85    0.925     0.608     0.189         12    53.68
                     28010M    LK WRTH AT SR812, LK WRTH BAS           21FLAS41228  ESTUARY        4     80      85       1.1    0.369     0.076      15.5     49.90
                     28010784  ICW NAV MRKR 44, LK WRTH SAS            21FLA841228  ESTUARY        4     80      85    1.425     0.318     0.059         19    47.29
                     28010785  ICW NAV MRKR 48, LK WRTH SAS            21FLA841228  ESTUARY        4     80      85    1.275     0.320     0.069       9.2     44.97
                     28010786  C-16 NR CONTROL STRUCT LKWRTH BA        21FLA841228  ESTUARY        4     80      85    1.675     0.470     0.106      12.9     46.40
                     28010787  ICW AT SR 804, LK WRTH BAS              21FLA841228  ESTUARY        4     80      85       1.15   0.366     0.082       6.5     45.22










                 TABLE 11 continued:



                     TROPHIC STATE INDEX CALCULATIONS FOR 1986-90                               of Begin     End
                     STORET# Location                                  Station     Type       obs. year     year      SO       NITRO    PHOS       CHLA      TSI

                     ............................................................................... ....................................................
                     28010723  INTRACOSTAL WVY AT PAL14 B GARDE        21FLA761230 ESTUARY        1     86     90       1.7     0.368     0.054        ND    40.14
                     28010724  LITTLE LAKE WORTH AT PGA BLVD BR        21FLA761230 ESTUARY        2     86     90        NO      0.47      0.08        ND    41.05
                     28010725  ICW AT US I BRIDGE                      21FLA761230 ESTUARY        1     86     90        ND      1.52      0.13        NO    68.21
                     28010726  CANAL C-17 AT ALT AIA BRIDGE            21FLA761230 ESTUARY        2     86     90        NO      1.49     0.075        ND    62-90
                     28010727  EARMAN RIVER AT US 1 BRIDGE             21FLA761230 ESTUARY        2     86     90          1    0.803     0.251        ND    55.83
                     28010728  LAKE WORTH AT BLUE HERON BLVD BR        21FLA761230 ESTUARY        2     86     90     2.333     0.194     0.067        RD    29.06
                     28010734  WP CANAL AT SO. OLIVE AVE BRIDGE        21FLA761230 ESTUARY        2     86     90     1.667     0.579     0.155        ND    44.92
                     28010769  LAKE WORTH AT SOUTHERN BLVD BRDGE       21FLA820904 ESTUARY        2     86     90        ND     1.735      0.34        ND    66.91
                     28010771  ICW AT OCEAN AVE, BOYNTON               21FLA820904 ESTUARY        1     86     90        NO      3.05      0.22        NO    80.00
                     28010M    LITTLE LK WORTH-CNTR, LK WRTH BAS       21FLA841228 ESTUARY        1     86     90     1.867     0.375     0.054        NO    38.92
                     2BOiO774  14UNYON TRANS W, LK WRTH BAS            21FLA841228 ESTUARY        1     86     90     1.833     0.284     0.043        NO    36.45
                     28010775  RUNYON TRANS HID, LK WRTH BAS           21FLA841228 ESTUARY        1     86     90     0.967     0.264     0.048        NO    45.32
                     28010776  MUNYOM TRANS E, LK WRTH BAS             21FLA841228 ESTUARY        1     86     90     1.033     0.234     0.035        ND    43.13
                     28010777  E OF ICW NAV MRKR 3, LK WRTH BAS        21FLA841228 ESTUARY        1     86     90       2.4     0.144     0.022        ND    25.68
                     28010778  CURRIE PK WEST, LK WRTH SAS             21FLA841228 ESTUARY        2     86     90     1.233     0.275     0.031        ND    42.08
                     280i0M    CURRIE PK MiO, LK WRTH SAS              21FLAS41228 ESTUARY        2     86     90     1.733     0.277     0.033        RD    37.04
                     28010780  CURRIE PK EAST, LK WRTH SAS             21FLA841228 ESTUARY        2     86     90       1.7     0.389     0.034        NO    43.16
                     28010781  LK WRTH AT ROYAL PALM, LKWRTH SAS       21FLA841228 ESTUARY        2     86     90     1.533     0.368     0.035        NO    44.58
                     28010782  ICW NAV MRKR 28, LK WRTH OAS            21FLA841228 ESTUARY        1     86     90     0.833     0.464     0.056        NO    53.14
                     28010783  LK WRTH AT SR812, LK WRTH SAS           21FLAS41228 ESTUARY        1     86     90       1.4     0.438     0.039        RD    47.30
                     280107M   ICW NAV MRKR 44, LK WRTH SAS            21FLAS41228 ESTUARY        1     86     90       1.3     0.423     0.043        ND    45.55
                     28010785  ICW NAV MRKR 48, LK WRTH BAS            21FLA841228 ESTUARY        2     86     90     1.633     0.354      0.03        NO    42.72
                     28010786  C-16 MR CONTROL STRUCT LKWRTH BA        21FLAS41225 ESTUARY        2     86     90     2.267     0.346     0.037        ND    35.22
                     28010787  ICW AT SR 804, LK WRTH BAS              21FLA841228 ESTUARY        1     86     90     1.725     0.276     0.036        ND    37.08



                     Numerical. vatues for each parameter are averages for the period indicated.
                     SD = secchi depth (meters)
                     NITRO    totat nitrogen (mg/t)
                     PHOS     totat phosphorous (mg/t)
                     CHLA     chiorophytL a (ug/t)
                     TSI   trophic state index
                     ND   no data availabLe









               UBLE 12 TROPHIC STATE INDEX TREND CALCULATION SUMMARY
                                                                                                  of Begin      End          TSI         TSI         TSI
                 STORET# Location                                    Station        Type        obs.   year    year       1975-79     1980-85     1986-90
                 --------------------------------------------------------------------------------------------------------------------------------
                 28010723  INTRACOSTAL WWY AT PALM B GARDE           21FLA761230    ESTUARY       36      75      90      47 GOOD     42 GOOD     40 GOOD
                 28010724  LITTLE LAKE WORTH AT PGA BLVD OR          21FLA761230    ESTUARY       28      75      87      51 FAIR     54 FAIR     41 GOOD
                 28010725  ICW AT US I BRIDGE                        21FLA761230    ESTUARY       27      75      87      49 GOOD     61 POOR     68 POOR
                 28010726  CANAL C-17 AT ALT AlA BRIDGE              21FLA761230    ESTUARY       28      75      87      79 POOR     77 POOR     63 POOR
                 28010727  EARMAN RIVER AT US 1 BRIDGE               21FLA761230    ESTUARY       46      75      90      53 FAIR     63 POOR     56 FAIR
                 28010728  LAKE WORTH AT BLUE HERON BLVD BR          21FLA761230    ESTUARY       47      75      90      43 GOOD     43 GOOD     29 GOOD
                 28010734  WP CANAL AT SO. OLIVE AVE BRIDGE          21FLA761230    ESTUARY       46      75      90      57 FAIR     60 POOR     45 GOOD
                 28010769  LAKE WORTH AT SOUTHERN BLVD BRDGE         21FLA820904    ESTUARY       12      80      87      ND          66 POOR     67 POOR
                 28010771  ICW AT OCEAW AVE, BOYNTON                 21FLA820904    ESTUARY       11      80      87      ND          61 POOR     80 POOR
                 28010M    LITTLE LK WORTH-CNTR, LK WRTH BAS         21FLA841228    ESTUARY       20      84      90      RD          42 GOOD     39 GOOD
                 28010774  MUNYON TRANS W, LK WRTH OAS               21FLAS41228    ESTUARY       18      84      90      NO          42 GOOD     36 GOOD
                 28010775  MUNYON TRANS MID, LK WRTH OAS             21FLA841228    ESTUARY       18      84      90      ND          45 GOOD     45 GOOD
                 28010776  MUNYON TRANS E, LK WRTH BAS               21FLA841228    ESTUARY       14      84      90      ND          44 GOOD     43 GOOD
                 28010777  E OF ICW NAV MRKR 3, LK WRTH BAS          21FLA841228    ESTUARY       18      84      90      ND          42 GOOD     26 GOOD
                 28010778  CURRIE PK WEST, LK WRTH BAS               21FLA841228    ESTUARY       19      84      90      ND          45 GOOD     42 GOOD
                 28010779  CURRIE PK MID, LK WRTH BAS                21FLA841228    ESTUARY       16      84      W       ND          45 GOOD     37 GOOD
                 28010780  CURRIE PK EAST, LK WRTH BAS               21FLAS41228    ESTUARY       18      84      90      ND          46 GOOD     43 GOOD
                 28010781  LK WRTH AT ROYAL PALM, LKWRTH BAS         21FLAS41228    ESTUARY       18      84      90      ND          49 GOOD     45 GOOD
                 28010782  ICW HAV MRKR 28, LK WRTH BAS              21FLA841228    ESTUARY       16      84      90      ND          54 FAIR     53 FAIR
                 28010783  LK WRTH AT SR812. LK WRTH BAS             21FLAS41228    ESTUARY       18      84      90      ND          50 FAIR     47 GOOD
                 28010784  ICW NAV MRKR 44, LK WRTH OAS              21FLA841228    ESTUARY       20      84      90      ND          47 GOOD     46 GOOD
                 28010785  ICW NAV MRKR 48, LK WRTH BAS              21FLAS41228    ESTUARY       18      84      90      ND          45 GOOD     43 GOOD
                 28010786  C-16 WR CONTROL STRUCT LKWRTH BA          21FLA841228    ESTUARY       18      84      90      ND          46 GOOD     35 GOOD
                 28010787  ICW AT SR 804, LK WRTH BAS                21FLA841228    ESTUARY       18      84      90      ND          45 GOOD     37 GOOD



                 if the TSI is between 0-49, the water quality is classified as GOOD.
                 if the TSI is between 50-59, the water quality is classified as FAIR.
                 if the TSI is between 60-100, the water quality is classified as POOR.
                 ND = no data available













                                                                                                                                                TABLE 13
                                                                                                                                     FWAL COLIFORMS SUMMARY

                                                                        1975-1980                                                                                 INI-1985                                                                            198& 1 9w



                                           Total                    Total              Total               Total                    Total * Of           Total              Total               Total                                                             Total             Total
                                                                                       samples            samples                    sampling            ampies             samples             samples                                                          umples             samples
                                                                exceeding 200       exceedmg 400      exceeding 8W                    "ents            zceedmg 9W        exceedmg 400        exceeding 800                                  7ET                  eedmg 400       exceedmg 800
                                     of nmprmg @vrezrts            samples                                                                                                                                                             rz

           Station #
           28010723                            15       -4                                                                                4                                                                                    2
           28010724                            15                       1                                                                 7                                                                                    2                                      1

           28010725                            15                       1                                      1                          7                                                                                    2

           28010M                              15                       3                 2                                               7                                                                                    2

           28010727                            is                       2                                      2                          11                                                                                   4

           28010728                            15                       1                                      1                          11                                                                                   4

           28010734                            15                       6                 2                    2                          9                                     1                  2                           5                 1                    1

           28010769                            3                                                                                          7                                     1                                              2

           28010771                            3                                                                                          6                  1                                                                 1

           2801(rn3                            0                                                                                          4                                                                                    2
           28010774                            0                                                                                          4                            1                                                       3                           1
           28010775                            0                                                                                          4                                                                                    3

           28010776                            0                                                                                          4                                                                                    2

           28010777                            0                                                                                          3                                                                                    3

           28010778                            a                                                                                          4                                                                                    3

           28010779                            0                                                                                          4                                                                                    3

           28010780                            0                                                                                          3                                                                                    3

           28010781                            0                                                                                          4                                                                                    3
           28010782                            0                                                                                          4                                                                                    3
           M10783                              0                                                                                          4                  1                                                                 3
                        -F






































           29010784                            0                                                                                          4                                                                                    2
           28010785                            0                                                                                          4                                                                                    3
           28010786                            0                                                                                          4                                                                                    3

           28010787                            0                                                                                          4

           * Sample thredwkb aluea are per 100 ml ofaample and correlated toState Standards kr Bacteriok)gkil Qmlity in Class III Waters IFAC Rule 17-302.560(5)]









             5.131 Sediment Chemistry


             Lake Worth Lagoon Sediment Chemistry has been investigated by: Rodgers, 1970; SFWMD,
             1977; Rudolph, 1989; Schropp and Calder, 1989. SFWMD found sediments at the south end
             of the lagoon to be higher in carbon, nitrogen, and phosphorus concentrations than
             sediments at the north end of the lagoon.


             Sediments from Lake Worth Lagoon were sampled and analyzed by Schropp and Calder in
             1983 and 1989. Samples taken in 1983 were localized in the area of the Port of Palm Beach
             (6 stations) and were analyzed for appearance and metals contents. Twenty one
             stations throughout Lake Worth Lagoon were sampled in 1989, with one station located in
             the Port of Palm Beach (PPB-009).


             The locations of sediment sampling stations are depicted on Figure 13. The locations were
             determined from station descriptions on field forms used by the Florida Department of
             Environmental Regulation, Office of Coastal Zone Management, unpublished study of the
             sediment chemistry of Lake Worth (Schropp, S. and F. Calder, 1989).


             Stations sampled in 1983 were not re-sampled in 1989. All stations sampled in 1989 were
             analyzed for appearance and metals content. In addition, 6 stations (LWO-3, LWO-11,
             LWO-13, LWO-15, LWO-16, and LWO-17) were analyzed for the presence of semivolatile
             organics, polycyclic aromatic hydrocarbons (PAH's and N-PAH's), and pesticides.


             Analyses for semivolatile organics were below detection limits. Pesticides scans were also
             below detection limits for all compounds except Aroclor-1254, a polychlorinated bipbenyl
             (PCB) based pesticide which was found at two stations, LWO-11 and LWO-13, in amounts
             ranging from 10 to 14 ug/kg dry weight. Several of the PAH compounds were detected at
             all six stations. Compounds found above detection limits included benzo(a)pyrene,
             benzo(b)fluoranthene,     benzo(g,h,i)perylene,    benzo(k)Fluoranthene,       fluoranthene,
             indenopyrene, pyrene, phenanthrene, and 2-methylnaphthalene. PAH's are derivatives of
             petroleum products, especially diesel fuels.


                                                        -36-








             Metals concentrations were examined against normalized curves following the method of the
             Department of Environmental Regulation (DER, 1987, A Guide to the InteEpretation of
             Metal Concentrations in Estuarine Sediments). Station concentrations above normal limits
             were found for cadmium (1983 data), chromium (1983 and 1989 data), copper (1983 and
             1989 data), lead (1983 and 1989 data), nickel (1989 data), and zinc (1983 and 1989 data).
             Since the stations sampled in 1983 were not re-sampled in 1989, no trend analysis is
             possible. Of those metals found above normal concentrations, lead appeared to be the most
             prevalent, followed by zinc, nickel, copper, cadmium and chromium. Mercury, which can not
             be examined against normalized curves was present in slightly elevated concentration at
             stations near the Port of Palm Beach.



             Elevated metal concentrations and the presence of PAH's are indicative of a system which
             chronically receives significant runoff from urban development areas. Their presence in the
             sediments of Lake Worth Lagoon is not surprising considering historical and present land
             uses as well as water quality trends.


             5.13.3 Benthic Fauna



             The literature indicates that a number of studies of benthic macroinvertebrate populations
             have been conducted over the past twenty years. However, a detailed trend analysis is not
             possible due to the lack of fixed station long term sampling data. EPA (1970) collected
             samples from 339 stations, but the sorting and identification was never completed. Reed
             (1975) collected 171 taxa from 11 stations during 1972 -1973. Deis (1978) collected 134 taxa
             from 12 stations in 1977. Tropical Ecosystems Inc. (1983) duplicated the Reed study in 1982
             - 1983 and identified 310 taxa. Rudolph (1989) collected 262 from six stations in Lake
             Worth Lagoon in 1985. Rudolph found a reduction in diversity when compared to the TEI
             study, and the species diversity values were comparable to other moderately polluted
             estuaries.






                                                        -37-












                                                             LEGEND




                                                          STORET # 280107--
                                                  FXJX    DER SEDIMENT STATION
                                                  FP X]   DER SEDIMENT STATION PPB#

























               *
                         Palm Beach County                                                                 D&M JOB NO.
                         Departuxent of           LAKE WORTH LAGOON                                       20335-001-049
                         ENVIRONMENTAL
                         RESOURCES              WATER QUALITY STATION                                         FIGURE
                         MANAGEMENT                                                                             13-A

















                                                                  LITTLE
                                                                 LAKE
                                                                  WORTH





                                                    2

                      iLL-J,   II























                                                                      MUNYON
                                                                          ISLAN




                                                                                    75

               A                                                                           LITTLE                                   MA'
                                                   R@   C @-ll '71
                                 EARMAN RIVE'                                              MUNYON
                          Palm Beach County                                            @) ISLAND
                          Department of               LAKE WORTH          LAGOON         0     1000     2000          D&M JOB NO.
                          ENVIRONMENTAL                                                  6w!!@                   1  20335-001-049
                          RESOURCES                IWATER QUALITY STATIONS1                    SCAM                      FIG
                          MANAGEMENT                                                          (FEET)                      13








                                                 74
                                                                                             A0
                                                   L@j         LJTTLE
                       EARMAN RIVE (C- 17)                     MUNYON
              26                                               ISLAND

              (STATION 28010726 IS LOCATED
              ON @HE C-17 CANAL AT OLD
              DIXIE HIGHWAY   NOT ON MAP)


















                                                          6
                                     BLUE HERON BRIDGE                      SINGER
                                                                            ISIAND







                                                  P@
                                                          PEANUT
                                                          ISIAND           LkKE WORTH INLET

                                                    FP-5]





                                                     P4 P9




          B
                                    R (C- 177)
                                     CATED
                                     OLD
                                     I MAP)
                                                 @BRIDGE@
                                                                            S
                                                      bE
                                                                T
                                                          IS












                                                           P2 P6









           t
                  Palm Beach County                                               D&M JOB NO.
                  Department of       LAKE WORTH LAGOON       0   1000  2000     20335-001-049
                  ENVIRONMENTAL                              I
                  RESOURCES         WATER QUALITY STATIONS        SCAU              FIGURE
                  MANAGEMENT                                      (FEET)             13-C









              B                                                                                                                   Bs








                                                                          Fg-1



























                                           FIAGLER MEMORIAL BRIDGE
              @
              C   CLEAR                                                                                                           Cs

                      LAKE

                         Palm Beach 5ounty
                         Department o               LAKE WOJ?TH LAGOON                0      1000    2000         D&M JOB NO.   9
                         ENVIRONMENTAL                                                                           20335-001-04
                         RESOURCES               LATER QUALITY STATIONS                     SCALE                     FIGURE
                         MANAGEMENT                                                 I       (FEET)                     13-D





             C    CLEAR                                                                                                    ct

                    LAKE





                                                                                81
                                                   ROYAL PARK BRIDGE













                                                                                    V)
                                                                                            ED















                                                                                  FISHERMAN
                                                                                     ISIAND





                  'Al
                                     SOUTHERN BOULEVARD BRIDGE                             I to


                                                                                              ik A



                                                                                                                           Do




                        Palm Beach County
                        Department of             LAKE WORTH LAGOON               0     1000   2000          D&M JOB NO.
                        ENVIRONMENTAL                                                                      20335-001-049
                        RESOURCES                ATER QUALITY STATIONS                 SCALE                    FIGURE
            IWMANAGEMENT                                                               (FEET)                    13-E











                                                                                                                    ns


                                                                            IIH
                                                                                     HUNTERSI
                                                                                       ISLAND









                                      WEST PALM BEACH CAD41, (C-51)
                                                                                [1-5]







                                                                                        IBIS
                                                                                        ISLE






















             E
                                                     LAKE AVENUE BRIDG


                       P:lm Beach County                                                                   JOB NO.
                       D@ partment of          LAKE    WORTH LACOON          0     1000 2000           D&M
                        NVIRONMENTAL                                                                 20335-001-049
                       RESOURCES            IWATER    QUALITY STATIONIS           SCALE                  FIGURE
            ItMANAGEMENT                                                          (FEET)                  13-F









            E
                                                   LAKE AVENUE BRIDGE




























                                                 OCEAN AVENUE BRIDGE          83











            F                                                                                                     Ff




                      Palm Beach County
                      Department of           LAKE WORTH LAGOON            0     1000 2000          D&M JOB NO.
                      ENVIRONMENTAL                                                                20335-001-049
                      RESOURCES              ATER QUALITY STATIONS              SCALE                  FIGURE
           I*MANAGEMENT                                                   I     (FEET)                  f3-G








          F                                                                               Fl








                                                      11-91






                                                         BEER CAN
                                                          ISLAND


                                                                      SOUTH LAKE WORTH
                                                                       INLET





                     BOYNTON CANAL (C- 16)            85
                                                    21








                                                  0





                                          87

                         OCEAN AVENUE BRIDGE











                -P 0110PH                                                      D&M JOB NO.
                       It
                 Departme'n o       LAKE WORTH LAGOON      0    1000 2000     20335-001-049
                 ENVIRONMENTAL
                 RESOURCES        WATER QUALITY STATIONS1      SCAU              FIGURE
                 MANAGEMENT                                    (FEEr)             13-H












            6.0 HABITAT RESTORATION AND ENHANCEMENT



            Palm Beach County adopted a vessel registration fee ordinance (No.88-40) effective June,
            1989, for the expressed purpose of generating revenue to finance enhancement projects for
            water bodies within the county.


            T'he ordinance directs that the monies be used for:



                   1. The protection of valuable coastal and lagoon habitats
                   2. 'Fhe maintenance and enhancement of fisheries and habitats.

                   3. The construction of artificial reefs.



            In order to initiate restoration and enhancement activities in Lake Worth Lagoon prior to
            implementation of a comprehensive management plan, an inventory of project types, project
            areas, and ratings has been developed in conjunction with the resource inventory.


            The projects which are identified are primarily geared toward habitat improvement, with
            water quality enhancement being a secondary benefit.


            6.1 PROJECT TYPES



            Five habitat restoration and enhancement project types which may be implemented in Lake
            Worth Lagoon were identified and evaluated. They are described below:


            Shoreline Wetlands Creatio


            Red mangrove wetland creation projects have a high probability for success if the proper
            substrate elevation is established; if daily tidal influence is assured; and if the area is
            protected from erosive wave energy. Red mangroves can be established along shorelines,

                                                       -38-








              and in areas from which exotic vegetation is removed and the substrate is scraped down to
              intertidal elevation. If high wave energy exists along a shoreline, it may be necessary to
              protect the planting area with rip rap. Lake Worth Lagoon has a number of shoreline areas
              and spoil islands which could be regraded and revegetated with red mangroves. Cordgrass,
              Spartina altem@ftora can be planted in place of red mangroves on sites prepared to similar
              conditions to create salt marsh areas. However, in Lake Worth Lagoon, salt marsh areas
              will eventually become replaced by red mangrove communities through natural successional
              processes. Communities of black, white and buttonwood mangrove are more difficult to
              created than shoreline red mangrove communities due to problems associated with the
              establishment and stabilization of precise substrate elevations required to support these
              species and prevent invasion by undesirable exotic species. These factors increase the
              difficulty of creating the more diverse wetland systems.


              Artificial Reefs



              Structures can be placed on the lagoon bottom to create artificial reef habitats. The
              structures will be rapidly colonized by a variety of marine epifauna, and are known to attract
              and ultimately produce diverse assemblages of fish. A variety of inorganic materials can be
              used for reef construction as long as they can be successfully anchored to the bottom, or
              have sufficient weight to prevent their movement by tides and currents. Artificial reef
              projects must also be constructed in a manner which will prevent them from becoming
              hazards to navigation. In general, areas near the inlets have higher marine diversity and
              would benefit the most from this type of project. Holes which have been created by
              dredging are potential sites for this type of project.


              Rip Rap Shoreline Stabilization


              Rock or concrete rubble rip rap can be placed along the base of existing bulkheads and
              along high energy shorelines for shoreline stabilization and habitat creation purposes. Rip
              rap creates habitat similar in ecological value to habitat created by artificial reef structures.

                                                           -39-









             When placed at the base of bulkheads, rip rap dissipates reflected wave energy which would
             have produced bottom scouring. Rip rap can also be used an alternative to vertical
             bulkheads or can be placed waterward of shoreline wetland plantings for wave protection.
             Many areas which could benefit from this type of project exist along the shoreline of Lake
             Worth Lagoon.


             Seagyrass and Qyster Bed Creation


             Seagrass beds occur in varying composition and density throughout Lake Worth Lagoon.
             In general, the most viable grass beds occur in shallow areas with good water clarity. If an
             area does not support seagrasses, it is generally due to inappropriate site conditions.
             Survival of plantings in such areas has been relatively unsuccessful in projects undertaken
             in other similar water bodies. An unsuccessful seagrass bed creation project was undertaken
             at Bicentennial Park, Riviera Beach as a mitigation requirement of a DER wetland
             alteration permit. Several experimental designs are currently being studied throughout
             Florida to provide an open artificial structure and promote oyster growth along existing
             bulkheads. In the future, experimental projects of this type will be evaluated and utilized if
             appropriate.


             Public Information



             Public information describing the natural resources of Lake Worth Lagoon and describing
             the efforts of ERM to protect and enhance these resources could be provided in the form
             of signs and displays and other written information located at boat ramps, public parks and
             marina facilities located along Lake Worth. Public awareness will lead to appreciation,
             which will lead to resource protection and support of the restoration and enhancerpent
             efforts.







                                                         -40-











             62 PROJECT AREAS



             Lake Worth Lagoon can best be characterized as an urban estuary. The majorityof Lake
             Worth's shoreline and islands are dominated by urban development. For this reason there
             are very few areas remaining which contain high quality diverse habitat components.
             Virtually all of the remaining habitat areas have been impacted to some extent by human
             activities, and present considerable opportunities for enhancement and restoration. It is
             recommended that habitat restoration and enhancement efforts in Lake Worth be focused
             upon the best remaining diverse habitat areas, with the objective of maintaining, protecting
             and improving them as examples of diverse and productive native habitat. For the purposes
             of this investigation, only project sites which are located on publicly owned lands or lands
             accessible to the public have been considered. Potential project sites were identified through
             field investigation and review of aerial photographs.


             Listed below are four significant areas which contain relatively diverse habitat components
             with potential for restoration and enhancement.


             Habitat Area 1.



             The northeastern section of Lake Worth Lagoon in the vicinity of John. D. MacArthur State
             Recreation Area is the best remaining example of the native ecosystem. This area contains
             numerous seagrass beds, shoreline mangrove fringes, hardwood hammocks, mangrove islands
             and embayments. The area also contains Big and Little Munyon Islands and another
             smaller island. These islands have been impacted by dredge spoil disposal and subsequent
             invasion by exotic plant species. Big Munyon Island retains a remnant coastal hammock in
             its interior portion (Appendix 8.3). Since Big Munyon Island is under public ownership as
             a component of the Florida State Park System, an ambitious exotic removal, shoreline
             configuration and stabilization, and saltmarsh/mangrove shoreline planting program could
             be undertaken to improve the habitat value of the island. Within the Singer Island portion
             of the recreation area there is a recently cleared corridor along State Road AlA. This

                                                         -41-









             corridor could be planted with wetland and upland plant species. 'Mis habitat area also
             contains elevated areas of spoil that have attracted exotic vegetation such as Australian Pine
             and Brazilian Pepper that could be removed.


             Habitat Area 2



             Ile area in the vicinity of Uke Worth Inlet maintains high marine productivity because of
             the tidal influence provided by the inlet. A submerged area north of the Blue Heron Blvd.
             Bridge and immediately west of Palm Beach Isles has been deepened by past dredging, and
             has a potential for development of an inshore artificial reef The area will require ftirther
             investigation to determine the feasibility of such a project. Also in the vicinity of Lake
             Worth Inlet is the 72 acre Peanut Island which was created by dredge spoil deposition. The
             majority of the island is covered by Australian Pines. Peanut Island has been recognized as
             having great potential as a public recreation area. If Peanut Island is acquired by the state
             or county for public recreation purposes, reconfiguration of portions of the shoreline and
             interior for native habitat restoration could be undertaken in association with park
             development.


             Habitat Area 3



             Ile areas immediately north and south of the Southern Boulevard Bridge and east of the
             Atlantic Intracoastal Waterway channel contain a number of small spoil islands known as
             Fishermans Island, The Bingham Islands and Hunters Island. Mangrove wetlands and
             seagrass beds are fairly abundant in the vicinity. This area is undeveloped, and is known
             for a moderate concentration of bird life. The islands are owned by the Town of Palm
             Beach. The types of activities previously suggested for Big Munyon Island could be
             undertaken to improve the habitat value of this diverse area.






                                                         -42-











             Habitat Area 4



             The area in the vicinity of South Lake Worth Inlet is subject to considerable tidal influence,
             and contains several habitat areas which could be enhanced. Beer Can Island which is
             located just northwest of the inlet has a badly eroding western shoreline, which could be
             protected with rip rap or enhanced a fringing mangrove community.


             Shoreline habitat creation could also be done at Ocean Inlet Park located south of the inlet.
             Just north of the Ocean Boulevard Bridge (Boynton Beach), the Intracoastal Waterway
             bisects the largest mangrove swamp in the southern portion of Lake Worth. The edges of
             the swamp are eroding and could be protected from wave energy by placement Of Tip rap.
             A similar site exists immediately south of the Ocean Avenue Bridge.


             Additional projects not located within the four habitat areas previously described have also
             been identified. All of the potential projects which have been identified are summarized in
             Table 14. The project sites are identified on Figure 14.


             6.3 PROJECT EVALUATION



             T'he conceptual projects which have been identified were evaluated and rated through the
             use of a evaluation matrix which takes into account the following criteria:


                    Construction resources requirements - considers access and staging for project
                    construction, relative cost of materials equipment and labor required per unit of
                    project, and any known unique construction problems associated with the project.
                    The evaluation assumes that different types of construction activities can be made
                    equivalent by adjusting linear distance or volume of construction activity. (eg: 50
                    linear feet of shoreline plantings may be equal to one tenth acre of artificial reef).





                                                         -43-









                     Maintenance requirements - considers the level of maintenance and monitoring
                     required to assure project success. Maintenance considerations include items such as
                     exotic plant control, replanting/replacement and general cleanup. Monitoring effort
                     required can range from visual inspection to intensive data collection.


                     Ecolop-ical benefits - the level of ecological benefit is dependent upon the size of
                     project, existing conditions of the resources in the vicinity, ongoing human impacts
                     in the area, and diversity of functions provided by the restored or enhanced habitat.


                     Land availabili     - considers public versus private ownership, as well as the
                     probability of the owners permission and level of support for restoration efforts.


                     Public gcceptance - considers whether the project may be objectionable to a
                     particular special interest for reasons such as aesthetics or use restrictions. A project
                     may also be of little interest, or may be highly supported by the general public.


                     Probabili1y for success - considers site conditions which may effect the success of the
                     project, as well as known success rates for similar completed projects.


                     Proximity to significant natural resources - considers whether the project is within,
                     close to, or isolated from an area of significant natural resources. The assumption is
                     that clustered habitat resources will be of greater ecological value than small isolated

                     habitat areas.



             Evaluation criteria values are presented in Table 15. The completed evaluation matrix is
             presented in Table 16. The evaluation matrix is an attempt to develop standard evaluation
             criteria for the comparison of conceptual projects. The resulting ratings are recommended
             only as a guideline to the selection of projects which are undertaken. Additional projects can
             be evaluated using the same matrix, and numerical values for evaluation criteria can be
             modified if complications are discovered during the planning phase of a given project.

                                                           -44-














                                                                                                                                                    TABLE 14


                                                                                                                HABITAT RES17ORATION AND ENHANCEMENT PROJECTS SUMMARY

                                Pr(ject No.            Project Name                       Project Type                             Project Owner                              Project Area                                   Comments                              Project Rating


                                       I          MacArthur State Park           Shoreline Plantings/Rip Rap           Florida Department of Natural                Up to 40M Imear ft. of                 Requires removal of exotic vegetation,                         A
                                                  Area                                                                 Resources                                    shoreline and 5WO linear ft.           mobilization of equipment and materials
                                                                                                                                                                    of roadside.                           to the island will be required, a moderate
                                                                                                                                                                                                           energy shoreline may increase
                                                                                                                                                                                                           maintenance requirement.

                                       2          Palm Beach Isles-Hole          Artificial Reef                       Florida Department of Natural                Approximately 10 acres                 Barges and other heavy equipment will                          A
                                                                                                                       Resources                                                                           be required to transport reef building
                                                                                                                                                                                                           structures to the site. Should be highly
                                                                                                                                                                                                           utilized by marine fauna due to close
                                                                                                                                                                                                           proximity to inlet. Low maintenance,
                                                                                                                                                                                                           primarily monitoring, Obstruction of
                                                                                                                                                                                                           navigation may be a permitting concern.

                                                  Peanut Island                  Shoreline Plantings/Rip Rap           U.S. Coast Guard, Palm Beach                 Up to 7000 linear ft.                  Requires mobilization of equipment 2nd                         B
                                                                                                                       County, Port of P21m Beach                                                          material to Island. Moderate energy
                                                                                                                                                                                                           shoreline and heavy human use may
                                                                                                                                                                                                           increase maintenance requirement. May
                                                                                                                                                                                                           be included in future Fork development
                                                                                                                                                                                                           plant.

                                                  N. Lakeway Drive -             Shoreline PlantingvRip Rap            Palm Beach Country Club and Gulf             1500 linear ft.                        Accessible by conventional equipment.                          B
                                                  Palm Beach                                                           Course                                                                              Some removal of exotic vegetation
                                                                                                                                                                                                           required. Should not conflict with
                                                                                                                                                                                                           existing land use. Moderate energy
                                                                                                                                                                                                           shoreline may increase maintenance
                                                                                                                                                                                                           requirements.

                                       5.         West Palm Beach                Rip Rap                               City of West Palm Beach                      6000 linear ft.                        Rip rap can be placed at the toe of the                        C
                                                  Bulkhead                                                                                                                                                 existing bulkhead with land based
                                                                                                                                                                                                           equipment. Habitat value will be
                                                                                                                                                                                                           diminished due to location. May cause a
                                                                                                                                                                                                           maintenance concern; ie., Etter trap.

                                       6.         Royal Park Bridge.             Artificial Reef                       Florida Department of Natural                Undetermined area                      Barges and other heavy equipment will                          C
                                                  Hole                                                                 Resources                                                                           be required to transport reef building
                                                                                                                                                                                                           materials to the site. Location is isolated
                                                                                                                                                                                                           from other resource areas and inlets.
                                                                                                                                                                                                           Proximity to channel and residences May
                                                                                                                                                                                                           result in concerns and objections.

                                       7.         Southern Boulevard             Shoreline Plantings/Rip Rap           City of West Palm Beach                      600 linear feet                        Located in the vicinity of other resources                     B
                                                  Bridge-NW Shore                                                                                                                                          but in a highly developed area. Site is
                                                                                                                                                                                                                  ible by convention land based
                                                                                                                                                                                                           accessi
                                                                                                                                                                                                           equipment. Maintenance requirements
                                                                                                                                                                                                           may be increased by heavy human
                                                                                                                                                                                                           activity in area.











                                       8.           Palm Beach Islands             Shoreline Plantings                    Town of Pabn Beach                             Several linear miles of                 Accessible by boat only. Will require                           A
                                                                                                                                                                         Shoreline                               removal of some exotic vegetation. Low
                                                                                                                                                                                                                 energy shorelines and limited human
                                                                                                                                                                                                                 activity will reduce maintenance needs.
                                                                                                                                                                                                                 Located in an area of significant
                                                                                                                                                                                                                 resources.

                                       9.           Southern Boulevard             Artificial Reef                        Florida Department of Natural                  Undetermined area                       Barges and other heavy equipment                                B
                                                    Bridge - Hole                                                         Resource&                                                                              required to transport reef building
                                                                                                                                                                                                                 materials to the site. Located in the
                                                                                                                                                                                                                 vicinity of significant resources but away
                                                                                                                                                                                                                 from inlets. impacts to navigation may
                                                                                                                                                                                                                 be a permitting issue.

                                       10.          Ocean Avenue- Phipps           Shoreline Plantingr/Rip Rap            Town of Palm Beach and Private                 2900 linear ft.                         Removal of exotic vegetation will be                            B
                                                    Ocean Park Vicinity                                                                                                                                          required. Somewhat isolated from other
                                                                                                                                                                                                                 resources. Accessible by conventional
                                                                                                                                                                                                                 land based equipment. Ibis Isles
                                                                                                                                                                                                                 residents may object.

                                       11.          C-51 Shoreline                 Shoreline Plantings(Rip Rap            South Florida Water Management                 400 linear ft.                          Accessible by conventional land based                           C
                                                                                                                          District                                                                               equipment. High energy generated by
                                                                                                                                                                                                                 spMway discharge may create
                                                                                                                                                                                                                 maintenance problems. Isolated from
                                                                                                                                                                                                                 significant resources.

                                       12.          Lake Worth Golf                Shoreline Plantings/Rip Rap            City of Lake Worth                             7000 linear ft.                         Shoreline has some existing mangrove                            B
                                                    Course                                                                                                                                                       and rip rap areas. Removal of exotic
                                                                                                                                                                                                                 vegetation will be required. Isolated
                                                                                                                                                                                                                 from significant resource areas.
                                                                                                                                                                                                                 Accessible by conventional land based
                                                                                                                                                                                                                 equipment. Moderate energy shoreline.

                                       13.          Ocean Avenue - South           Shoreline plantings/ Rip Rap           Privately Owned, adjacent to road              50DO linear ft.                         Accessible by conventional land based                           C
                                                    Palm Beach                                                            corridor                                                                               equipment. Removal of exotic vegetation
                                                                                                                                                                                                                 will be required. Isolated from
                                                                                                                                                                                                                 significant resource areas. Moderate
                                                                                                                                                                                                                 energy shoreline. Degree of cooperation
                                                                                                                                                                                                                 by adjacent residents unknown.

                                       14.          Half Moon Bay - Hole           Artificial Reef                        Florida Department of Natural                  Undetermined area                       Barges and other heavy equipment                                C
                                                                                                                          Resources                                                                              required to transport reef building
                                                                                                                                                                                                                 Materials to the site. Isolated from
                                                                                                                                                                                                                 significant resources. Adjacent upland
                                                                                                                                                                                                                 property owners may object concerning
                                                                                                                                                                                                                 impacts to navigation.

                                       15.          Hyp-l- Spit                    Shoreline Plantings                    Town of Manalapan                              400 linear ft.                          Site access is limited. Area is already
                                                                                                                                                                                                                 vegetated by wetland plants to some
                                                                                                                                                                                                                 degree. 7le level ofsupport by adjacent
                                                                                                                                                                                                                 residents is unknown. Site is somewhat
                                                                                                                                                                                                                 isolated.











                                     16.          Boynton Beach Boat             Shoreline Plantings/ Rip Rap          City of Boynton Beach                         600 linear ft.                         Accessible by conventional land based                          A
                                                  Civic Park                                                                                                                                                equipment. Site already has some rip rap
                                                                                                                                                                                                            and mangroves. Close proidmity, to
                                                                                                                                                                                                            significant resources. Site limited in size.

                                     17.          Beer Can Island                Shoreline PlairtingstRip, Rap         South Lake Worth inlet District,              500 linear ft.                         Adjacent to inlet in an area of hirly                          A
                                                                                                                       and Privately Owned                                                                  diverse marine resources. Removal of
                                                                                                                                                                                                            exotic vegetation will be required.
                                                                                                                                                                                                            Accessible only by barge or boat. Area of
                                                                                                                                                                                                            high shoreline energy and heavy public
                                                                                                                                                                                                            use.

                                     18.          Ocean Inlet Park               Shoreline P12ntinpiRip Rap            Palm Beach County Parks                       500 linear ft.                         Adjacent to inlet in a fitirly diverse                         B
                                                                                                                       Recreation Department                                                                marine area. Accessible by conventional
                                                                                                                                                                                                            based equipment. High energy shoreline
                                                                                                                                                                                                            and heavy public use.

                                     19.          Ocean Ridge and                Rip Rap                               Florida Inland Navigation District,           4500 linear ft.                        Eroding mangrove shoreline can be                              B
                                                  Boynton Beach                                                        Corps of Engineers                                                                   protected by rip rap. Barges and special
                                                  Mangrove Areas                                                                                                                                            equipment required to transport
                                                                                                                                                                                                            Materials to the site. Project area is
                                                                                                                                                                                                            somewhat isolated. Maintenance
                                                                                                                                                                                                            requirements minor.

                                     20.          County Owned                   Shoreline Plantings/Rip Rap           Palm Beach County Department of               7.0 acres                              Eroding mangrove shoreline can be                              A
                                                  Mangrove Preserve                                                    Environmental Resources                                                              protected by rip rip. Interior areas can
                                                                                                                       Management                                                                           be graded and planted with mangroves.
                                                                                                                                                                                                            Barges and special equipment required.
                                                                                                                                                                                                            Area is isolated. Minor maintenance
                                                                                                                                                                                                            requirements.

                                   Other          Parks, Marinas. Public         Public Information                    Various owners                                Over 50 potential sites                Signs, displays, and other written
                                                  Access Areas                                                                                                                                              information regarding the natural
                                                                                                                                                                                                            resources of Lake Worth Lagoon Can be
                                                                                                                                                                                                            distributed to promote protection and
                                                                                                                                                                                                            support for restoration and enhancement.














                                                                                                                        TABLE 15


                                                                                                  PROJECT EVALUATION CRITERIA VALUES
                          MatriK Value                                                              1                                                 2                        T                          3

                          Evaluation Criteria
                          Construction Resources Requirements               Special equipment, materials or services            Conventional Construction with minor               Conventional construction and labor.
                                                                            which will inflate cost per unit.                   special considerations.
                          Maintenance Requirements                          Intensive maintenance required.                     Moderate routine maintenance required.             Minor maintenance or monitoring only
                                                                                                                                                                                   required.

                          Ecological Benefits                               Minor benefits.                                     Moderate benefits.                                 Significant benefits.
                          Land Availability                                 Privately owned.                                    Public ownership by a non-resource                 Public ownership by a resource related
                                                                                                                                related entity.                                    entity.
                          Social Acceptance                                 Some interests may object                           Neither significant objection or support           Significant public support likely.
                                                                                                                                anticipated.

                          Probability for Success                           Poor-risky project.                                 Good chance for success.                           Excellent chance of success.
                          Praximity to Significant Natural                  Isolated.                                           Within close proximity to a significant            Within a significant resource area.
                          Resources                                                                                             resource area.














                                                                                                                                               TABLE 16


                                                                                                                          PROJECF EVALUATION MAMX

                                                 Project Number                            2       3       4        5         6     7          8                     11      12       13      14      15      16       17        18    19         20

                                                 Evaluation Criteria
                                                 Construction Resources           2        1       1       3        2         1     3          2       1 1   3       3       3        3       1       1       3        1         3     1          1
                                                 Requirements                                           I                                I                                        I                I                       I               I
                                                 Maintenance                      3        3       2       2        1         3     2          2       3     2       1       2        2       3       2       2        2         2     3          3
                                                 Requirements                                           I                                                                         I                                        I
                                                 Ecological Benefit%              3        3       3       2        1         1     2          3       2     2       1       2        2       1       1    1  2        3         2     2          3

                                                 Land Availability                3        3       2       1        2         3     2          3       3     3       3       2        1       3       2       3        3         3     3          3

                                                 Public Acceptance                3        3       3       2        2         1     2          3       1     2       1       2        1       1       2       2        2         1     2          3
                                                 Probability for Success          3        3       2    1  2        2         2     2          3       2     2       1       3    1   2       2    1  2       2        3   1     2     2          3
                                                 Project Location in              3        3       3       2        1         1     2          3       2     2       1       1        1       1       2       3        3         3     1          3
                                                 Proxictity to Significant
                                                 Natural Resources

                                                 Total Score                      20       19      16      14       1 1       12    15         19      14    16      11      15       12      12      12      17       17        16
                                                 Rank (A-()                       A        A                        C                          A       B     B       C       B        C       C       C       A        A   I     B     B          A

                                                 No of Projects within each range and corresponding rank                                       Totals Score Range                       Rank                    Total Number of Projects

                                                                                                                                                       (17-20)                           A                                       6
                                                                                                                                                       (14-16)                           B                                       8

                                                                                                                                                       (11-13)                           C                                       6









                                                      LEGEND


             PROJECT NO.            PROJECT                                          PROJECT TYPE
                  (D   MACARTHUR STATE PARK AREA                              SHORELINE PLANTINGS/RIP RAP
                  (D   PALM BEACH ISLES      HOLE                             ARTIFICIAL REEF
                  G    PEANUT ISLAND                                          SHORELINE PLANTINGS/RIP RAP
                  0    N. LAKEWAY DRIVE      PALM  BEACH                      SHORELINE PLANTINGS/RIP RAP
                  0    WEST PALM BEACH BULKHEAD                               RIP RAP

                       ROYAL PARK BRIDGE - HOLE                               ARTIFICIAL REEF

                       SOUTHERN BOULEVARD BRIDGE - NW SHORE                   SHORELINE PLANTINGS/RIP RAP

                       PALM BEACH ISLANDS                                     SHORELINE PLANTINGS

                       SOUTHERN BOULEVARD BRIDGE - HOLE                       ARTIFICIAL REEF

                       OCEAN AVENUE - PHIPPS OCEAN PARK        VICINITY       SHORELINE PLANTINGS/RIP RAP
                  (D   C-51 SHORELINE                                         SHORELINE PLANTINGS/RIP RAP
                  0    LAKE WORTH GOLF COURSE                                 SHORELINE PLANTINGS/RIP RAP
                  (D   OCEAN AVENUE - SOUTH PALM BEACH                        SHORELINE PLAN7INGS/RIP RAP
                  G    HALF MOON BAY - HOLE                                   ARTIFICIAL REEF

                       HYPOLUXO ISLAND SPIT                                   SHORELINE PLANTINGS

                       BOYNTON BEACH BOAT CLUB PARK                           SHORELINE PLANTINGS/RIP RAP

                       BEER CAN ISLAND                                        SHORELINE PLANTINGS/RIP RAP

                       OCEAN INLET PARK                                       SHORELINE PLANTINGS/RIP RAP

                       OCEAN RIDGE AND BOYNTON BEACH MANGROVE AREAS           RIP RAP

                       COUNTY-OWNED MANGROVE PRESERVE                         SHORELINE PLANTINGS/RIP RAP











                      R
                      P Im Beach County
                       'p',aftent of        LAKE WORTH LAGOON                                  D&M JOB NO.
                      ENVIRONMENTAL                                                          20335-001-0.4.9
                                             HABITAT RESTORATION
            ttRESOURCES
                      MANAGEMENT                PROJECT AREAS         @mmv@@@


















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                                                    ISLAND
               Palm Beach County                                    D&M JOB NO.
               Department of   LAKE WORTH  LAGOON  0   1000 2000    20335-001-049
               ENVIRONMENTAL   HABITAT RESTORATION
               RESOURCES        AND ENHANCEMENT        SCAU           FIGURE
       ItMANAGEMENT          I    PROJECT AREAS        (FEET)          14-B






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                                                                 ISLAND            LAKE WORTH INLET








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                     Department of        LAKE' WORTH LAGOON         0    1000 2000         D&M JOB NO.
                     ENVIRONMENTAL        HABITAT RESTORATION                               20335-001-049
                     RESOURCES              AND ENHANCEMENT               SCALE               FIGURE
          ItMANAGEMENT                        PROJECT AREAS              (FEET)                14-C









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                      Department of           LAKE WORTH LAGOON             0     1000   2000        D&M JOB NO.
                      ENVIRONMENTAL           HABITAT RESTORATION                                   20335-001-049
                      RESOURCES                 AND ENHANCEMENT                  SCAU                   FIGURE
                      MANAGEMENT                 EriNvin      fcoNll@mlm         (FEET)                  14-D




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                                                                                                    ISLE

















              E                                             LAKE AVENUE BRIDGE                                                     E


                          Palm Beacb County
                          Department of              LAKE WORTH LAGOON                 0      1000    2000          D&M JOB NO.
                          ENVIRONMENTAL              HABITAT RESTORATION                                          20335-001-049
                          RESOURCES                    AND ENHANCEMENT                       SCAM                      FIGURE
              *MANAGEMENT                                 PROJECT AREAS                      (FEET)                     14-F










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                                                                            0
             F                                                                                                          Ff



                       Palm Beach                                                                        D&M JOB NO.
                       Department icounty       LAKE WORTH LACOON              0     1000    2000       20335-001-049
                                  f
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                       RESOURCES                  AND ENHANCEMENT                    SCALE                  FIGURE
             WMANAGEMENT                            PROJECT AREAS             I     (FEET)                   14-G









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                                                                BEER CAN
                                                                 ISLAND


                                                                               SOUTH LAKE WORTH
                                                                               INLET





                        BOYNTON CANAL (C- 16)














                            OCEAN AVENUE BRIDGE











                    ;n r" Beach county                                                   D&M JOB NO.
                    Department If        LAKE WORTH LACOON         0    1000  2000
                                                                                        20335-001-049
             v      ENVIRONMENTAL
            "A vL 00.
                    RESOURCES             AND ENHANCEMENT              SCAM                FIGURE
                    MANAGEMENT              PROJECT AREAS              (FEET)               14-H










                     7.0 NATURAL RESOURCES EVALUATION AND RECOMMENDATIONS


              Analysis of the information used to compile this report leads to several observations
              regarding the status of water quality and natural resources in Lake Worth Lagoon.


              1. Lake Worth Lagoon was historically a freshwater lake. Man's activities have changed it
              to a productive estuarine lagoon over the past 100 years. As an important fish and wildlife,
              recreational, and aesthetic resource it is desirable to maintain Lake Worth Lagoon as a
              healthy estuarine lagoon system.


              2. Overall water quality has stabilized or slightly improved in recent years. Water quality is
              currently classified by the TSI at the lower end of the good range. Benthic diversity and
              sediment chemistry suggest a chronic condition of moderate pollution. Since point sources
              have been significantly reduced in recent years, stormwater runoff is apparently the major
              source of pollutants. The presence of PAH's and elevated metals concentrations in lagoon
              sediments supports this assumption. Over three hundred stormwater outfall pipes discharge
              directly to Lake Worth Lagoon. Hundreds of other outfalls discharge into C-16, C-17, and
              C-51, the major freshwater inflows to the lagoon. Additionally, the impact of stormwater
              discharge can be expected to increase as undeveloped lands in the canal drainage basins are
              converted to urban types of development. In order to improve water quality in Lake Worth,
              elimination of remaining point sources, as well as treatment or diversion of stormwater
              discharges must occur. Strategies which could be employed after proper investigation,
              identification of problem areas, and planning efforts include storrawater retrofit or diversion,
              stormwater utilities, and increased performance criteria for new sources.


              3. Boating and marina activity in Lake Worth Lagoon contribute to overall water quality and
              habitat degradation. Proper monitoring and management of boating activities will minimize
              the impact while still providing recreational boating opportunities.





                                                           -45-









             4. Drastic habitat losses have occurred through the years as a result of shoreline
             urbanization and dredge and fill activities. Over 65% of the shoreline has been bulkheaded.
             Over 87% of the original mangrove habitat has been lost resulting in only 19% of the
             shoreline (including islands) being fringed by mangroves. Despite direct impacts by dredge
             and fill activities and indirect impacts of degraded water quality, considerable areas of
             habitat, including over 2000 acres of segrass beds remain, and a diverse population of fish
             and wildlife species utilize the habitat areas. Remaining habitat should be protected through
             regulation, public awareness, and public acquisition. Until the time when an overall
             management plan can be implemented, enhancement and restoration of impacted habitats
             should be pursued where feasible as suggested in the Habitat Restoration and Enhancement
             section of this report.


             5. Existing monitoring programs do not provide data which is adequate to definitively track
             ongoing resource trends. As restoration, management and enhancement activities are
             implemented, an ongoing comprehensive water quality and habitat monitoring program
             should also be implemented to measure the degree of success of various activities in the
             overall enhancement of Lake Worth Lagoon.























                                                         -46-




 I
 I
 I
 I
 I
 I
 I
 I
 I
 I                    APPENDIX
                      SECTION 8.0
 1
 1
 1
 I
 I
 I
 I I
 I
 I







                                                                 APPENDIX 8.1

                                                  References/Literaturo Data Saito Contents


                 Applied Biology, Inc. 1976. Ecological Parameter Monitoring at the Riviera Plant. Florida Power & Light
                         Company Report.

                 Area Planning Board of Palm Beach County. 1974. Stormwater Study Design, West Palm Beach. Area
                         Planning Board of Palm Beach County.

                 Area Planning Board of Palm Beach County. 1979. Palm Beach County 208 Areawide Waste Treatment
                         Management Plan. Area Planning Board of Palm Beach County.

                 Area Planning Board of Palm Beach County. 1980. A Profile of Palm Beach County Municipalities, July 1980.
                         Area Planning Board of Palm Beach County.

                 Arthur V. Strock and Associates, Inc. 1983. Sand Search in South Lake Worth. Report Prepared for Palm
                         Beach County.

                 Austin, D. F., Weise, J.G. 1972. Annotated Checklist of the Boynton Beach Hammock. Quarterly Journal
                         of the Florida Academy of Science. 35:145-154.

                 Bach, S.D. 1984. Summary of Water Quality Sediment and Biological Studies for Lake Worth, Florida.
                         Unpublished.

                 Bane, LL. 1979. A Seasonal Study of Sessile Marine Fouling Organisms in Northern Lake Worth, Florida.
                         M. S. Thesis Florida Atlantic Univ.


                 Barry, J. J. 111. 1981. Letter From Florida Department of Health and Rehabilitative Services to Trust for
                         Public Land Regarding Little Munyon Island.

                 Beccasio, A. D., Fotheringham, N., Redfield, A.E., Frew, R. L, Levitan, W.M., Smith, J.E., Woodrow, J.0.,
                         Jr.   1982.   Gulf Coast Ecological Inventory: User's Guide and Information Base. Report
                         #FWS/OBS/82/55.

                 Beeler, E. I., O'Shea, T. J. 1988. Distribution and Mortality of the West Indian Manatee (Dichechus manatus)
                         in the Southeastern United States: A Compilation and Review of Recent Information. National
                         Ecology Research Center Report No. 88-09.

                 Birnhak, B.K 1974. An Examination of the Influence of Fresh Water Canal Discharges on Salinity in Selected
                         Southeastern Florida Estuaries. South Florida Environmental Project, Report #DI-SFEP-74-19.

                 Bishop, W. M. 1973. Palm Beach County Water Quality Management Plan. Volume 1 Implementation
                         Strategy. Area Planning Board of Palm Beach County.

                 Boynton Beach, City of. 1989. Comprehensive Plan. City Comprehensive Plan

                 Brink, L, 1976, Bicentennial Commission of Riviera Beach, Florida. A History of Riviera Beach,

                 Brogan, J. 1987. Boat Owners Want Their Place in The Sun. Palm Beach Post, February 16, 1987.

                 Bromwell and Carrier, Inc. 1989. Long-Range Dredged Material Management Plan for the Intracoastal
                         Waterway in Palm Beach County, Florida. Prepared for Florida Inland Navigation District.

                 Brucker, W. M. 1958. Palm Beach County From Lake Worth Inlet to South Lake Worth Inlet, Florida, Beach
                         Erosion Control Study. 85th Congress 2nd Session, House Document No. 342, U.S. Government
                         Printing Office.










                Bruun, P.M., Battjes, J.A., Chiu, T.Y., Purpura, J. A- 1966. Coastal Engineering Model Studies of Three
                         Florida Coastal Inlets. Engineering Progress at the University of Florida, Volume XX, No. 6 Bulletin
                         #122 Section E.


                Caldwell, J. M. 1950. Bypassing Sand at South Lake Worth Inlet, Florida. Proceedings of the First Coastal
                         Engineering Conference, Pages 320-325.

                Causaras, C. R. 1981. Annotated Bibliography of the Geology and Hydrology of the Surficial Aquifers in
                         Dade, Broward and Palm Beach Counties, Florida. U.S.G.S. Open File Report 82-154.

                Central and Southern Florida Flood Control District 1968. Present and Projected Land Use Analysis of the
                         Earman River Canal (C-17) West Palm Beach, Florida. Central and Southern Florida Flood Control
                         District


                Central and Southern Florida Flood Control District. 1973. Preliminary Evaluation Report on Land and
                         Water Management Planning in the C-51 Watershed. Prepared for Division of State Planning, State
                         Department of Administration.

                Chiu, T. Y., Van De Kreeke, J., Dean, R.G. 1970. Residence Times of Waters Behind Barrier Islands.
                         Completion Report to the Office of Water Resources Research, Department of the Interior.

                Christensen, B. A., Snyder, R.M. 1975. Physical Modeling of Scour Initiation and Sediment Transport in
                         Distorted Tidal Models. Symposium on Modeling Techniques, Vol. 11, September, 1975.

                Christensen, R. F. 1965. An Ichthyological Survey of Jupiter Inlet and Loxahatchee River, Florida. M. S.
                         Thesis, Florida State University, December 1965.

                Clark, J., Smith, W. G., Kendall, A. W., Jr., Rahay, M. P. 1970. Studies of Estuarine Dependence of Atlantic
                         Coastal Fishes. Bureau of Sport Fisheries Wildlife Technical Paper No. 59.

                Coastal and Oceanographic Engineering Department. 1971. Observations at South Lake Worth Inlet.
                         University of Florida (71/010).

                Coastal and Oceanographic Engineering Laboratory. 1968. Interim Report, South Lake Worth Inlet Study.
                         University of Florida (68/001).

                Coastal and Oceanographic Engineering Laboratory. 1969. Sand Tracing Program for Specific Areas on the
                         Lower East Coast of Florida, Palm Beach Area From Lake Worth Inlet to South Lake Worth Inlet.
                         University of Florida (69/005).

                Coastal and Oceanographic Engineering Laboratory. 1969. Sand Tracing Program for Specific Areas on the
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                 K. C. Mock and Associates. 1962. Investigation of Tidal Hydraulics of the South Lake Worth Inlet and Its
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                 Mann, T. M. 1977. Impact of Developed Coastline on Nesting and Hatchling Sea Turtles in Southeastern
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                Mann, T. M. 1978. Impact of Developed Coastline on Nesting Sea Turtles in Southeastern Florida.
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                Mikkelson, P. S., Mikkelson, P. M., 1986. List of Molluscan Species of Peanut Island, Lake, Worth, Florida.
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                Miller, R. A. 1979. Characteristics of Four Urbanized Basins in South Florida. U. S. Geological Survey Open
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                       the Salinity and Biota of Shallow Lagoons. University of Miami Technical ReporL

               Van De Kreeke, J., Wang, J. D. 1978. Tidal Hydraulics and Salt Balance of Lake Worth, Florida.
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               Van De Kreeke, J., Wang, J. D. 1976. Tidal Hydraulics and Salt Balance of Lake Worth. University of Miami
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                       Seagrasses. Unpublished, Submitted for Geography Seminar GE06938 Florida Atlantic University.










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              Yeend, J. S. 1983. Hydrographic Survey, South Lake Worth Inlet, Palm Beach County, Florida. Report for
                      Board of Commissioners of South Lake Worth Inlet District

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                      on Coastal Engineering, Pages 457-462.







                                                             APPENDIX 8.2-TABLE A


                                                            GRAIN SIZE CHARACTERISTICS


                                 grain size                   phi scale                           type of sediment
                                                              (0) units

                        64-256                                 -6--9         cobble


                        4-64                                   -2-04         pebble

                        2 -4                                      -1         granule

                        1-2                                       0          very coarse sand

                        .5-1.0                                    1          coarse sand


                      0.25,0.5                                    2          medium sand


                      0.125 -0.25                                 3          fine sand

                      0.063 - 0.125                               4          very fine sand

                      0.031 - 0.063                               5          coarse silt


                      <0.004                                    8-14         silt and clay
                      PHI GRADE SCALE - A geometric grade series, 4)(phi)=-1.4427 log. (d(nun)/lmm) d(mm) (imm) (240))

                      PHI MEDIAN DIAMETER - mid point of the particle oize distribution (050th percentile)

                      PHI MEAN DIAMETER - an average of the phi median medium diameter (060) and one standard deviation on either
                      side of the median (016 and 4b84)

                      SORTING COEFFICIENT                             The following verbal limits indicates relative sorting.

                                                                               less than 0.35  = very well sorted

                                                                                  0.35 to 0.50    = well sorted


                                                                               0.50 to 1.00   = moderately sorted

                                                                                 1.00 to 2.00   = poorly sorted

                                                                              2.00 to 4.00    = very poorly sorted

                                                                           greater than 4.00 = extremely poorly sorted

                      SKEWNESS                                The quality of asymmetry shown by a frequency distribution around the
                                                              medium particle size. Positive skewness - coarser particles exceed finer
                                                             particles. Negative skewness - finer particles exceed coarser particles. The
                                                                        following verbal limits indicates relative skewness.

                                                                             -1.00 to -0.30  = very negative skewd

                                                                               -0.30 to -0.10     negative skewd

                                                                              -0.10 to +0.10     nearly symetrical

                                                                               +0.10 to +0.30   = positive skewed

                                                                            +0.30 to +1.00    = very positive skewed

                      KURTOSIS                                The ratio of the sorting in the extremes of the particle size distribution
                                                             compared with the sorting in the central part. The following verbal limits
                                                                                        indicate kurtosis.

                                                            0.67 to 0.90 = platykurtic (less peaked than the ponding normal frequency
                                                                                          distribution)

                                                           0.90 to 1.11 = mesokurtic (closely resembling a normal frequency distribution)

                                                              1.11 to 1.50 = leptokurtic (more peaked than the corresponding normal
                                                                                     frequency distribution)

                                                                                  1.60 to 3.00  very leptourtic

                                                                            greater than 3.00  extremely leptokurtic




                                                                                                                                      M M M M I=












                                                                                                                                            APPENDIX 8.2 - TABLE B

                                                                                                                                                     STUDY: REED, J. K., 1975

                                                                                                                                                               TABLE I

                                    Averages of bimonthly sedimentary data from six sampling periods for each statiolL
                                    Percent gravel, und. sik, clar, mean particle diameter in phi units, median particle diameter in phi units and millimeters, and standard deviation(sorti* in phi units.
                                       STATION                     NEAR                    % GRAVEL                      % SAND                       % SILT                      % CLAY                            M                  M                        M                            0
                                                              EQUIVALENT                                                                                                                                            2                  d                        d                            I
                                                              EPA STATION                                                                                                                                           (0)                (0)                    (mm)                           (0)
                                               I                   LW35E                         1.9.                       58.8                         26.5                        12.8                           &"                 MO                     0.095                          2.72

                                               2                   LWs32G                        &2                         70.0                         17.7                        9.1                            128                2.48                   0.179                          2.80
                                               4                   LWSIB                         0.2                        20.7                         59.1                        20.0                           6.01               6.24                   0.013                          2.S4
                                               5                   LW31A                         2.6                        87.5                         6.4                         &5                             2.16               2.12                   0-23D                          1.65
                                               6                   LW28C                         0.0                        219                          54.3                        20.7                           5.94               5.91                   0.017                          2.27

                                               9                   LW27A                         0.4                        92.6                         4.0                         &0                             2.3()              2.32                   0.200                          1.10
                                               I I                 LW26A                         2.0                        9&3                          2.6                         2.1                            1.88               1.81                   o.285                          1.12
                                               13                  LW25A                         2.7                        90.5                         4L6                         2.2                            2.15               2.24                   0.212                          1.29
                                               14                  LW22C                         6.4                        91.0                         1.2                         1.4                            1.63               1.74                   0.2"                           1.11
                                               17                  LW20C                         0.7                        84L5                         10.3                        t5                             2.75               2.50                   u77                            1.64
                                               18                  LW15A                         0.1                        51.2                         39.5                        9.2                            4L45               &95                    0.065                          2.18



   mm mm mm MAWS m m                                                                                       m m                                    am










                                                                APPENDIX 8.2 - TABLE C


                                STUDY: R. ROGERS, 1972 EPA STUDY OF LAKE WORTH LAGOON: SEDIMENT GRAIN SIZE ANALYSIS

                                                               WEIGHT PERCENT IN PHI UNITS


           STATION
                  -6    -5     -4    -3     -2    -1      0     1      2     3      4     5      6   MEDIAN      SORTING      SKEWNESS KURTOSIS
                                                                                                       PHI     COEFFICIENT

           IA                                                               14.7   9.0   76.3          4.34        0.81         -0.50      1.62
           ic                                     0.3    3.3   16.1  23.7   20.1  11.3   25.3          2.33        1.61         0.09       0.69
           1E                               1.9   2.5    5.0    7.2  38.9   37.3   7.1    0.1          1.86        1.10         -0.17      1.32

           1F                               0.6   1.5    4.8    6.6  31.7   39.9  14.1    0.8          2.12        1.09         -0.16      1.21

           IH                               0.3   2.1    6.0    7.9  61.4   18.4   1.9    2.0          1.55        0.87         -0.02      1.76
           2A                                     0.1  1 3.3   20.6  23.3   15.1  13.1   24.5          2.18        1.65         0.14       0.66
           2C                                     0.2    0.8    2.1  17.9   56.5  22.2    0.4          2.52        0.80         -0.03      1.24

           2E                                            3.0   13.5  25.3   22.5  13.1   22.5          2.36        1.53         0.10       0.77

           2G                               12.9  7.7   12.9    9.5  28.5   23.1   5.0    0.5          1.25        1.90         -0.36      0.83

           21                               2.7   3.1    6.4    6.7  36.1   31.9  11.9    1.3          1.86        1.34         -0.18      1.39

           3A                                     0.4    2.1   16.8  77.5     2.6  0.2    0.3          1.40        0.54         -0.26      1.16

           3C                               2.5   10.1  16.7    9.8  26.8   28.7   5.0    0.4          1.40        1.59         -0.30      0.77
           3E                                     0.1    1.1    2.9  20.6_  54.1  17.0    4.2          2.47        0.87         -0.01      1.29
           3G                                     3.2   25.8   26.4  18.0   11.7   6.2    8.8          0.80        1.67         0.30       0.96
           4A                               1.2   1.3    1.7    1.7  16.0   61.0 113.4    3.9          2.46        0.88         -0.14      1.70
           4C                                     1.3    3.0    7.5  41.0   37.3   7.5    2.5          1.93        0.98         0.01       1.15
           4E                                            1.2   11.7  21.8   16.1  15.1   34.1          2.95        1.53         -0.11      0.68
           4G                               4.1   7.8   12.5 1 13.4  36.5 1 15.7   8.7 1 1.4           1.34        1.65         -0.20      1.12




                                                                                                                                            man,














                                                                 APPENDIX 8.2-TABLE C CONT.

                                 STUDY: R. ROGERS, 1972 EPA STUDY     OF LAKE WORTH LAGOON: SEDIMENT GRAIN SIZE      ANALYSIS
          -4H                                4.0    7.7   10.    13.4  48.0   12.5   3.3    0.5          1.30        1.38         -0.38       1.21
            41                               0.6    1.4    4.9   5.4   44.1   22.8  13.7    7.0          1.85        1.28         0.18        1.26
            4K                               0.7    2.7    4.6   14.1  -25.0  40.1  12.7    0.2          2.08        1.23         -0.28       1.11
          -4M                                       7.3  - 5.9   8.6   52.5   17.6   6.8    1.3          1.54        1.28         -0.14       2.00
          -40                                0.8    1.9    2.7   10.2  64.1   14.3   4.5    1.6          1.54        0.83         0.10        1.77
          -4Q                                0.6    1.3    3.0   19.3  56.5   12.2  .4.3    2.8          1.46        0.95         0.06        1.61
            5A                               0.8    0.7    1.4   4.0   61.6   29.3   1.0    1.2          1.70        0.70         0.11        1.04
            5C                               11.5   5.8    8.5   12.6  41.1   18.1   1.8    0.5          1.28        1.69         -0.43       1.11
            5E                               3.9    2.7    5.1   6.3   26.5   39.1  15.1    1.4          2.14        1.39         -0.32       1.45
            5G                               6.7    8.4    8.8   10.6  47.6   15.0   1.3    1.6          1.33        1.53         -0.43       1.21
            51                               2.6    8.7    15.1  15.1  34.3   13.4   8.8 ,  2.1          1.25        1.64         -0.14       1.07
            5K                                      2.2-   2.5   5.2   37.8   37.0  14.1    1.2          2.06        1.01         -0.04       1.12
            5M                               3.3    3.8    6.9   6.4   38.2   25.4  14.6    1.4          1.77        1.48         -0.17       1.43
            50                        2.2    1.5    3.5    5.3   8.8   51.4   17.7   8.4    1.3          1.56        1.34         -0.13       2.00
            5Q                               1.2    0.5    0.8   16.2  68.8   10.1   2.2    0.4          1.46        0.67         -0.05       1.46
            6C                                     0.3     1.0   5.5   22.2   37.5  31.3    2.2          2.56        1.03         -0.12       0.92
            6E                               1.1    0.5    1.8   3.1   19.1  -44.7  28.0    1.8          2.55        1.01         -0.13       1.15
            6G                                      1.3    3.4   4.5   12.2   48.4  28.6    1.5          2.59        1.06         -0.20       1.41
            61                               1.2    1.3    2.8   4.9   23.9   51.0  14.5    0.4          2.31        1.01         -0.26       1.31
            6K                                      0.7    1.7   2.0     9.2  58.1  27.9    0.4          2.63        0.77         0.02        1.23
            6M                                      0.3    1.0   1.8     8.1  55.1  33.3    0.4          2.70        0.76         0.01        1.06
                                             1. 1 1 2.1    2.9   3.2   17.61 54.0   18.9    0.3          2.43        1.07         -0.26       1.69
























                                                               APPENDIX 8.2-TABLE C CONT.

                                 STUDY: R. ROGERS, 1972 EPA STUDY OF LAKE WORTH LAGOON: SEDIMENT GRAIN SIZE ANALYSIS
            6Q                               4.0    1.9   2.4    2.9  38.2   46.7    3.7   0.2          2.01        1.08        -0.33       1.53
            6R                               0.2    0.4   1.3    3.0  31.2   51.9   11.3   0.7          2.27        0.79        -0.07       0.97
            7A                                      1.3   1.7    2.3    6.8  25.3   53.2   9.4          3.24        0.98        -0.29       1.24
            7C                                      0.2   0.7    3.1  1B.0   40.7   33.6   3.7          2.69        0.93        -0.08       0.92
            7F                                      0.1   0.9    1.4  13.1   47.8   23.4   13.4         2.72        0.99          0.18      1.08
            8A                                      0.3   1.3    4.7  20.0   65.0    4.5   4.1          2.36        0.82        -0.16       1.55
            8C                               0.3    0.3   0.8    3.2.   9.7  39.8   44.8   1.3          2.90        0.84        -0.17       0.98
            8E                               0.8    0.7   1.5    4.1  24.9   43.0   24.2   0.8          2.42        1.01        .-0.11      1.07
            8G                                      2.4   2.5    8.3  60.4   26.0    0.3   0.2          1.61        0.76          0.02      1.34
            81                               4.3    8.2   6.8   12.5  47.2   18.6    2.4   0.1          1.39        1.41        -0.37       1.34
            9A                               1.9    1.8   1.6    5.0  42.3   39.3    5.4   2.7          1.94        0.99        -0.05       1.27
            9c                               0.6    0.5   7.0   36.6  37.3   16.4    1.2   0.4          1.14        0.97          0.02      0.98
            9E                                      1.7   4.0    9.4  32 . 6 35.5   16.5   0.4          2.07        1.09        -0.09       1.09
            9G                               4.5    6.1   9.6   16.0  28.2   20.5   14.6   0.5          1.49        1.69        -0.17       1.04
            91                                      1.9   2.6    9.7  35.1   45.6    5.0   0.1          2.02        0.88        -0.23       0.97
            9K                               0.5    1.7   4.4   14. 1 27.0   39.7   12.5   0.1          2.06        1.17        -0.23       1.07
            10aA                                    0.7 1 2.3    8.4  32.2   51.5    4.9   0.0          2.13        0.83        -0.28       0.95
            lOaD                8.6    1.5   2.8    3.6 1 6.5    8.3  16.0   37.7   14.8   0.2          2.07        2.25        -0.58       1.33
            lobA                             0.1    0.3   1.4    4.0  35.8   54.1    4.1   0.1          2.15        0.71        -0.21       0.84
            lobC          8.2   3.3    2.7   5.5    9.6   8.3    9.1  32.4   18.4    2.3   0.2          1.10        2.48        -0.55       1.02
            11A               1              2.5    1.8   3.4   10.4  28.0   45.1    8.5   0.4          2.09        1.15        -0.31       1.24
            11B                              2.6          6.7    4.1  40.0   40.6 ,  1.5   0.1          1.80        1.19        -0.34       1.44



   mommmumm man moomm"m m m mm@nvf










                                                              APPENDIX 8.2-TABLE C CONT.

                                STUDY: R. ROGERS, 1972    EPA STUDY OF LAKE WORTH LAGOON: SEDIMENT      GRAIN SIZE ANALYSIS
           lic                               6.3   7.9    7.3   6.0   28.3   36.2   7.8    0.2          1.80        1.73          -0.44      1.19
           11D   14.7    0.0   0.0    0.0    2.8   6.0    3.5   5.8   20.8   34.9  11.0    0.5          1.83          -            -           -
           11E                               9.8   4.8    4.8  10.4   32.0   33.0   4.5    0.7          1.63        1.68          -0.44      1.22
           11F                               3.3   4.3    4.1   8.5   24.6   42.9  12.0    0.4          2.12        1.39          -0.39      1.42
           11G                                     0.6    0.6   1.4   10.6   63.6  23.0    0.2          2.58        0.71          0.05       1.33
           11H                              10.7   6.0    13.0 15.9   32.8   15.4   6.0    0.2          1.13        1.74          -0.29      1.04
           111                                     1.8    1.9   4.9   30.6   44.1  16.0    0.8          2.25        0.98          -0.12      1.11
           Ili                                     0.7    0.7   2.7   13.1   47.5  34.7    0.5          2.69        0.84          -0.05      1.01
           11K                                     0.3    0.6   2.5   14.1   32.9  47.8    1.7          2.98        0.88          -0.27      0.90
           12A                               0.4   1.6    2.3   5.3   62.9   25.7   1.5    0.3          1.64        0.75          0.05       1.32
           12C                                     0.8    1.5   1.7   14.8   47.1  30.7    3.5          2.66        0.88          -0.03      1.01
           12E                                     o.3    0.4   0.9  ,  4.5  28.2  64.0    1.8          3.25        0.69          -0.31      0.93
           121                               3.2   4.9    11.0  7.4   15.8   32.6  22.8    2.3          2.24        1.75          -0.39      1.03
           13A                                     1.9    3.2   5.1   24.0   45.5  16.9    3.4          2.35   1    1.10          -0.15      1.26
           13C                                     0.7    1.6   2.7   21.3   60.7  10.7    2.3          2.39        0.77          -0.12      1.30
           13E                                     3.7    4.2   6.4   17.2   45.5  19.5    3.5          2.41        1.26          -0.25      1.42
           13G                                     0.3    1.1   2.6   35.4   55.3   4.8    0.6          2.19        0.68          -0.15      0.80
           14A                               0.8   3.3    7.2   8.5   25.6   39.8  12.1    2.6          2.11        1.31          -0.29      1.24
           14C                               1.8   5.0    7.2   5.8   22.0   44.3  11.0    2..9         2.18        1.44          -0.39      1.40
           14E                                     1.0    2.8  24.4   64.6     6.6  0.5    0.2          1.34        0.69          -0.17      1.10
           14F                               0.2   0.8    1*0   5.5   76*2   15,8 , 0.2    0.4          1.56        0.55          0.05       1.35
           15A                                     0.2    5.6  13.6   15.7   16.4 115.9    32.6         2.91        1.69      J   -0.19  1   0.71



   mmmm













                                                               APPENDIX 8.2-TABLE C CONT.


                                STUDY: R. ROGERS, 1972 EPA    STUDY OF LAKE WORTH LAGOON: SEDIMENT      GRAIN SIZE  ANALYSIS

          15C                               0.5    2.7    2.7   6.2   18.2  40.7   15.4  14.1           2.50        1.39         -0.03       1.27

          15E                               2.9    3.8    6.5   7.3   25.2  32.7   13.8   7.9           2.13        1.63         -0.19       1.39

          15G                               0.7    1.6    5.4   7.3   28.8  41.9   11.5   2.9           2.15        1.13         -0.19       1.26

          16A                                      0.3    3.3   4.6   18.6  44.8   12.7  15.8           2.52        1.30         0.07        1.3

          16C                                      0.4   10.3  18.3   26.8  27.2    7.2   9.8           1.78        1.48         0.01        1.07

          16E                                      0.08   5.3   6.5   19.6  27.5   18.0  23.1           2.68        1.51         -0.04       0.89

          16G                                      3.9    9.6  12.0   28.2  32.1    9.2   5.0           1.87        1.42         -0.17       1.17

          161                               7.0    20.9  22.5  11.1   12.0  14.9    6.1   5.4           -0.02       2.03         0.28        0.81

          17A                               0.5    2.7    3.1   4.8   38.9  38.0    7.3   4.7           2.00        1.10         0.05        1.38

          17C                                      1.8    2.5  30.1   60.4    5.0   0.3   0.1           1.26        0.67         -0.21       0.86

          17E                               1.5    0.5    2.4  30.4   59.3    5.6   0.2   0.1           1.26        0.69         -0.18       0.87

          17G                               0.8    3.7    7.0   8.0   34.7  39.6    4.0   2.1           1.88        1.19         -0.27       1.26

          17H                               0.1    2.2    6.2   8.4   18.9  42.7   13.7   7.8           2.33        1.38         -0.16       1.35

          18A                               7.1    5.6    5.5   7.9   42.0  29.3    1.8   0.8           1.57        1.53         -0.41       1.55
          18C          38.2   24.8   9.0    5.7-   7.8    5.0   2.6    4.3    2.2   0.2   0.3           -4.52       2.21         0.58        1.04
          18E                                      1.3    4.4  13.4   60.2  15.9    3.2   1.7           1.51        0.86         -0.01       1.54

          19A                               1.0    4.1    8.3  20.4   44.1  15.1    4.5   2.5           1.37        1.25         -0.08       1.34

          19C                               9.4    6.5    8.6   7.9   42.3  24.1    0.8   0.4           1.42        1.65         -0.44       1.12

          19E                                      0.4    4.4  16.6   30.5  17.0   12.1  19.0           1.94        1.59         0.23        0.81

          19F                                      0.4    4.4  18.9   22.6  15.9   12.5  26.1           2.27        1.67         0.08        0.66

          20A          11.1    0.0   0.0    13.1  10.0   10.5   7.8   33.8  11.7    1.0   0.9           0.68        2.39         -0.48       0.95
          20C                      1            1 0.5    3.1   9.2    64.3  22.9                        1.58        0.71         0.04        1.38





















                                                                 APPENDIX 8.2-TABLE C CONT.

                                 STUDY: R. ROGERS, 1972 EPA    STUDY OF LAKE WORTH LAGOON: SEDIMENT GRAIN SIZE        ANALYSIS
           20E                                      0.5    0.8   3.2   51.5   42.8 1 1.1    0.2           1.88        0.65         0.08        0.75
           20G                               8.7    14.5  16.9   19.8  36.7     2.3  0.4    0.9           0.50        1.45         -0.30       0.78
           21A                 25.7          11.3   4.7    7.9   7.5   23.1   14.6   3.1    2.2           0.06        2.86         -0.28       0.56
           21C                                      0.7    2.1   5.0   66.3   25.4   0.2    0.3           1.64        0.68         0.09        1.25
           21E                               1.9    3.0    8.1   14.4  61.5   10.4   0.2  , 0.6           1.37        0.97         -0.34       1.56
           21F                               14.3   7.1   16.8   15.7  26.0   17.5   1.9    0.9           0.76        1.84         -0.25       0.87
           21G                               3.2    2.9    8.0   13.8  41.5   27.9   2.2    0.4           1.53        1.25         -0.26       1.25
           211                               3.1    10.6  21.1   23.2  25.8   11.4   2.5    2.2           0.65        1.45         -0.05       0.93_
           211                               6.2    5.1    6.1   4.0     8.9  25.7   39.5   4.5           2.77        1.92         -0.56       1.22
           21L                                      0.4    8.1-  17.7  17.4   14.4   12.8   29.11         2.44        1.80         -0.05       0.67
           22A                               12.2   9.8    7.8   11.5  44.1   14.0   0.4    0.2           1.20        1.69         -0.50       0.91
           22C                               0.1    0.1    0.5   1.2   94.4     3.7  0.0    0.0           1.51        0.32           0.0       0.74
           22E                               6.4    2.3    5.6   10.0  51.7   22.5   1.2    0.3           1.50        1.31         -0.34       2.15
           22G                                      2.3    6.8   33.0  40.9   12.6   2.7    1.8           1.19        1.01         -0.03       1.10
           221                               6.4    7.3   17.0-  19.6  29.0   15.1   3.1    2.5        1  0.99        1.62         -0.17       1.02
           23A                                      1.0    2.0   38.1  53.1     5.0  0.4    0.4           1.17        0.69         -0.09       0.81
           23C                               0.8    0.6    2.9   28.5  46.5   12.6   3.7    4.5           1.37        1.07         0.16        1.33
           23E                               0.8    1.4    3.3   22.8  50.2   17.3   3.2    1.1           1.43        0.93         -0.03       1.18
          [
           2


           2

           2



          P2
           23G                               1.2    3.3    4.5   7.6   45.6   36.6   0.9    0.3           1.73        0.99         -0.18       1.33
           24H                                      1.2    5.8   32.0  39.2   15.8   3.0    2.9           1.28  1     1.07         0.08        1.10
           25A                                      0.2    3.4   15.3  19.7   21.4   18.5   21.5          2.53        1.57         -0.02       0.77
                                                    1.1    3.1   7.1   28.7   52.6 1 7.2    0.4           2.19        0.91         -0.25       1.32




  No,


















                                                              APPENDIX 8.2-TABLE C  CONT.

                                STUDY: R. ROGERS, 1972 EPA    STUDY OF LAXE WORTH   LAGOON: SEDIMENT   GRAIN SIZE  ANALYSIS
           25E                                     4.8  11.5   21.0  36.1   23.3    2.5   0.9          1.35        1.21         -0.15      0.97

           25G                                     1.9   3.6   38.9  45.6    7.6    1.3   1.1          1.12        0.82         0.02       0.98

           25J                              1.4    1.8   3.9   16.7  45.3   20.5    5.0   5.5          1.58        1.25         0.07       1.50

           26A                       7.8    2.4    4.9   3.1   11.9  48.5   19.1    2.0   0.4          1.41        1.68         -0.47      1.90

           26C                                     0.9   2.1    2.7  12.9   72.5    8.1   0.8          2.43        0.69         -0.19      1.62

           26E                              1.7    5.2  13.3   17.5  55.3    6.7    0.1   0.3          1.22        1.09         -0.42      1.07

           26G                                     0.2  17.5   19.4  18.2   14.3    9.8  20.5          1.71        1.91         0.14       0.7

           261         21.1    5.7   4.0    3.5    2.6   3.3   37.8  17.3    3.0    0.7   0.9          0.26        2.82         -0.61      0.61
           26J               1                     0.3   4.6   12.7  20.1   16.4    11.9 33.9          2.75        1.65         -0.08      0.69
           27A                                     0.1   0.4    4.2  47.1   45.0    2.3   0.9          1.96        0.66         0.02       0.74

           27C   46.8                       8.0    4.6   5.2    9.3  16.7    8.2    0.8   0.4          -2.60        -            -           -

           27D                              15.8   4.2  11.7   18.1  34.5   13.3    1.2   1.1          1.00        1.82         -0.42      0.97

           28A                                     0.3   2.2    3.7  22.3   41.4    14.3 15.9          2.52        1.24         0.12       1.08

           28C                17.5          2.3   12.5  29.2   16.1    9.9   5.8    3.1   3.6          0.40        2.68         -0.17      1.40

           28E                              7.2    2.0   3.3    6.8  16.4   18.7    21.3 24.5          2.77        2.03         -0.30      1.11

           29A                                     0.2   0.4    1.4    8.8   0.6    44.3 44.3          3.87        0.92         -0.21      1.29

           29C                                     1.3   4.7   10.8  43.0   37.9    2.0   0.4          1.78        0.90         -0.12      1.06

           29E                24.3          5.7    3.6   6.3    7.6  24.1   19.3    6.0   3.1          1.11        3.03         -0.48      0.69

           29G                              0.1    0.3   1.3    2.2    7.3   9.4    21.8 57.6          4.13        1.12         -0.52      1.13

           30A                                     0.5   3.3   24.8  58.4   11.2    1.4   0.4          1.37        0.77         -0.09      1.17

           30C                              8.3    6.9  11.4   21.3  49 9    1.9    0.1   0.2          1.04        1.32         -0.54      1.06
           30E                                          11.5   33.6  23.7   11.5    7.0  12.7          1.21        1.63         0.34   F























                                                                              APPENDIX 8.2-TABLE C CONT.

                                         STUDY: R. ROGERS, 1972 EPA            STUDY  OF LAKE WORTH LAGOON: SEDIMENT             GRAIN SIZE     ANALYSIS
               31A                                   125.2 31.6      i 17. 8-   9.4      7.4    5.1     1.8      1.8             1.22           1.68            0.37          1.10
               31B                                                   l  0.2     1.8    10.3    24.3    18.0    45.4              3.74           1.17            -0.32         0.77
               31C                                      10.1    7.3    1.4.9   15.9    24.5    16.2     4.1      7.0             1.07           2.00            -0.11         1.06
               31E                                                      0.7     7.6    16.5    16.4    17.6    41.3              3.50           1.44            -0.33         0.74
               31G                                   1          0.2     2.0     6.0    25.3     8.8    19.3    38.5              3.40           1.48            -0.30         0.67
               32A            56.9              1.6             0.7     1.4     2.6    25.1    10.6     0.8      0.5             -5.12          3.18            0.83          0.50
               32C                                              0.9     2.0     6.3    58.8    31.0     0.7      0.3             1.69           0.73            0.05          1.08
               32E                                      7.9 13.4       15.0    11.4    23.1    24.0     2.8      2.4             1.10           1.81            -0.27         0.76
               32G                                                      2.4    17.8    35.4    18.6     8.2    17.6              1.84           1.52            0.30          0.96
               32I                                              0.2  1  2.7    14.0    21.2    21.4    12.8    27.7              2.56           1.58            0.02          0.71
               32K                                              3.4     5.4    49.6    33.0     7.0     0.9      0.7             0.83           0.90            0.10          1.12
               32L                                      0.1     2.2    .13.9   14.9    17.7    19.3    14.7    17.3              2.07           1.86            -0.03         0.78
             -33A                                               11.8   13.0    29.8    32.4    10.8     1.3      0.9             0.85           1.30            -0.15         1.09
               33C                                      1.8     1.7     9.6    14.5-   41.3    29.2     1.4      0.6             1. 54'         1.15            -0.22         1.10
               33E                                      7.8     6.9    .12.4   13.2    32.5    24.4     1.7      1.0             1.30           1.64            -0.35         0.95
               33G                                      0.3     0.7     2.8     4.6    36.1    48.5     4.0      3.1             2.11           0.90            --0.13        1.14
               33I                                      0.4-    0.5     0.8     3.5    89.9     4.6     0.1      0.2             1.50           0.35            -0.03         0.79
               34A              1.5     0.7     1.3     1.4     3.6     2.8    16.5    55.7    16.0     0.4      0.2              1.4           1.15            -0.35         1.89
               34C                                      13.0    24.0   16.4    10.1    13.1    15.6     4.0      3.8             -0.21          2.04            0.24          0.77
               34E                                      1.7     1.3     5.2     6.8    36.6    44.3     3.4      0.8             1.96           0.97            -0.26         1.17
               34G                                              1.3     4.7     7.3    31.0    43.5    10.4      1.8             2.13           1.05            -0.17         1-21H
               35A                                                      1.5    17.7    26.5    15.7    1.1. 3  27.3              2.27           1.60            0.15          0.6 6_























                                                                APPENDIX 8.2-TABLE C CONT.

                                STUDY: R. ROGERS, 1972 EPA      STUDY OF LAKE WORTH LAGOON: SEDIMENT    GRAIN SIZE  ANALYSIS
        r
           35C                               3.8   1.9    6.9   12.9  51.2   14.4   5.1    3.8          1.48        1.34         -0.10       2.08
           35E                                     1.2    2.2    9.2  65.0   20.4   0.8    0.3          1.57        0.70         0.05        1.42
           36A                 0.7    0.7    0.4   17.5  13.4   29.3  30.1    6.7   1.0    0.3          0.59        1.37         -0.17       0.87
           36C                               1.4   5.8   17.5   14.2  24.9   24.4   5.7    6.0          1.45        1.67         -0.09       0.93
           3'6E                              0.1   0.3    0.4    0.9    5.7  16.7  24.3    24.3 27.3    4.07        1.37         -0.12       0.85
           37A                               3.4   10.2  15.8   18.6  36.9   13.9   1.0    0.3          1.06        1.40         -0.31       0.93
           37C                               0.6   2.2    4.7-  10.4  44.5   32.1   3.8    1.7          1.72        1.02         -0.10       1.22
           37E                                     1.4    1.8-  12.2  64.7   18.4   1.1    0.4          1.53        0.70         0.04        1.41
           38A                               1.9   1.2    3.1   13.4  61.5_  17.4   1.0    0.4          1.49        0.84         -0.1 3      1.61
           38C                                     0.1    3.6   18.3  21.8   16.7  12.6    27.0         2.38        1.65         0.06        0.66
           38E                                     0.6    6.2   10.6  43.2   23.2   9.9    6.2          1.75        1.22         0.13        1.27
           39A                               1.5   4.5    7.8   12.0  52.8   17.9   2.6    0.9          1.46        1.16         -0.25       1.70
           39C                               0.8   1.8    3.9   16.0  59.8   16.6   0.8    0.3          1.46        0.85         -0.16       1.53
           39E                               4.4   6.9   12.1.  12.5  37.6   22.2   3.5    0.9          1.38        1.51         -0.32       1.03
           39H                               1.6   2.3    6.0   11.4  68.2    9.4   0.3    0.7          1.42        0.86         -0.30       1.90
           40A                               0.2   0.7    1.1   10.4  113.9   3.4   0.1    0.3          1.45        0.46         -0.18       1.17
           40C                                     0.2    0.5    1.4  16.1   80.9   0.7    0.3          2.39        0.50         -0.24       1.17
           40E                                            0.4    2.1  .26.7  66.8   3.9    0.1          2.31        0.61         -0.26       0.92
           40F                               0.3   0.5    2.2   12.3  16.8   49.3  17.4    1.1          2.36        1.07         -0.24       1.15
           3

           3
























           41A                               2.2   2.9    5.2   26.0      2  13.4   4.3    2.9          1.32        1.22         -0.04       1.40
           41C                               0.6   0.8    4.1    5.5  14.4   60.3  13.4    1.1          2.41        0.98         -0.31       1.85
           41                                4.6   3.9    6.9   25.9  51.6    6.3   0.6    0.2          1.17        1.09         -0.36       1.36



                                                                                                                                                                            "a Map No















                                                                                                     APPENDIX 8.2 - TABLE D


                                                                                                        STUDY: I-L RUDOLPH, 1989

                                                                                                          Weight Percent in PHI Units
                                                                                                               Data Not on Overlay
                                  Date                Station         Equivalent EPA              <-I                  0+1                   2                    3                     4                    5
                                                                           Station
                            Feb 85                      -773                                                           0.1                   1.1                  2.0                  4.3                  92.5
                            Feb 85                      0775          LW 4H                       0.2                  3.5                   13.9                 39.7                 35.0                 7.7
                            Feb 85                      0728          LW 9D                       1.8                  10.2                  20.4                 41.8                 23.4                 Z4
                            Feb 85                      $778          LW 15A                      1.2                  5.1                   30.2                 29.7                 12.9                 21.9
                            Feb 85                      $734          LW 27A                      0.1                  7.7                   75.6                 14.2                 0.7                  1.7
                            Feb 85                      794           LW 4OF                      1.5                  26.1                  56.9                 13.8                 0.4                  1.3
                            Aug 85                      0778          LW 15A                      2.0                  17.5                  53.5                 22.6                 1.9                  7-5











                                                                                                    APPENDIX 8.2 - TABLE E


                                                                                                 STUDY: SCHROPP, S. & F. CALDER, 1989

                                                                                                           Weight Percent in PHI Units

                           Replicate A

                           Station                                     0.25                 1.25                2                  Z75                 3.75              >3.75                Mean               Mean
                                                                                                                                                                                              Phi                 mm


                           1                                              1                 2                   9                  58                  29.8                 0.2               2.51                0.18

                           2                        2                     13                11                  13                 31                  17                   13                2.18                0.22

                           3                        2                     2                 7                   33                 42                  124                  1.6               2.03                0.24

                           4                        4                     9                 13                  40                 24                  8                    2                 1.59                0.33

                           5                        3                     5                 10                  30                 32                  IZ6                  7.4               Z05                 0.24

                           6                        1                     4                 37                  32                 3                   17.7                 5.3               1.69                0.31

                           7                        3                     6                 11                  43                 .21                 13.4                 2.6               1.78                0.29

                           8                        6                     7                 10                  24                 5                   40.9                 7.1               217                 0.22

                           PPB 9                    3                     7                 3                   6                  75.9                0.8                  4.3               110                 0.23

                           9                        6                     6                 10                  54                 17.6                3.9                  Z5                1.51                0.35

                           10                       3                     4                 11                  40                 14                  215                  5.8               Z03                 0.25

                           11                       4                     6                 30                  42                 11.6                Z2                   4.2               1.39                0.38

                           13                       23                    22                13                  11                 8                   19.2                 3.8               0.86                0.55

                           14                       5                     6                 6                   10                 33                  3Z4                  7.6               Z34                 0.20

                           15                       2                     4                 9                   40                 28                  IZ8                  4.2               1.97                0.26

                           16                       17                    22                19                  17                 33.3                6.7                  2                 0.79                0.58

                           17                       9                     10                21                  32                 17                  9                    2                 1.31                0.41

                           18                       6                     7                 9                   35                 30                  8.5                  4.5               1.74                0.30

                           19                       7                     19                11                  23                 13                  20.8                 6.2               1.59                0.33

                           2                        2                     2                 16                  15                 43                  19.4                 Z6                2.17                0.22

                           21                       2                     2                 6                   50                 28                  7.8                  4.2               1.96                0.26











                                                                                                                              APPENDIX 8.2 - TABLE F

                                                                                                                              Tropical Ecosystems Inc., 1983

                                                                                                                                      WeIgtft Percent In PHI Units
                                                                                                                                      * - Values are Approxknale
                                           Date                        SWIM              Equivalent EPA Statim       EquWW Reed StOODn                                       0+1                 2&3                       4                      5
                                           Apr 82                            1                   LW 35E                          1                                              5                  62                      15                     17
                                           Aug 82                            1                   LW 35E                          1                                              4                  75                      13                     7
                                           Apr 82                            2                   LW 320                          2                        3                     9                  56                      17                     15
                                           Aug 82                            2                   LW 32G                          2                        2                     4                  41                      7                      46
                                           Apr 82                            3                   LW 310                          4                        2                     2                  a                       28                     00
                                           Aug 82                            3                   LW 31B                          4                        2                     5                  5                       10                     78
                                           Apr 82                            4                   LW 31A                          5                        1                     2                  28                      28                     43
                                           Aug 82                            4                   LW 31A                          5                        0                     4                  41                      19                     38
                                           Apr 82                            5                   LW 29C                          6                        2                     5                  63                      14                     to
                                           Aug 82                            5                   LW 29C                          a                        1                     3                  20                      20                     48
                                           Apr 82                            a                   LW 27A                          9                        2                     0                  97                      1                      0
                                           Aug 112                           a                   LW27A                           9                        0                     5                  94                      1                      0
                                           Apr 82                            7                   LW 25A                          I 1                      0                     10                 87                      2                      1
                                           Aug 82                            7                   LW 20A                          11                       2                                        as                      2                      0
                                           Apr 82                            a                   LW 25A                          13                       7                                        65                      11                     a
                                           Aug 82                            a                   LW 25A                          13                       4                     4                  85                      7                      0
                                           Apr 82                            9                   LW 22C                          14                       2                     10                 84                      2                      2
                                           Aug 82                            9                   LW 22C                          14                       0                     a                  92                      2                      0
                                           Apr 82                            to                  LW 20C                          17                       3                     5                  50                      is                     25
                                           Aug 82                            10                  LW 20C                          17                       1                     5                  OD                      10                     4
                                           Apr 82                            11                  LW ISA                          Is                       0                     1                  27                      30                     38
                                           Aug 82                            It                  LW ISA                          Is                       2                     3                  53                      22                     20
                                           Apr 82                            12                  LW lIF                                                   10                    a                  52                      20                     6
                                           Aug 82                            12                  LW IIF                                                   3                     4                  62                      30                     1
                                        [[D I










                                           Apr 82                            13                  LW 9D                                                    1                     5                  64                      29                     1
                                           Aug 82                            13                  LW 90                                                    0        1            2                  40                      la                     42
                                           Apr 82                            14                  LW 4H                                                    0                     2                  49                      38                     11
                                           Aug 82                            14                  LW 4H                                                    5                     7                  56                      14                     18











                                                                   APPENDIX 8.3


                                                    MUNYON ISLAND PARTIAL PLANT LIST
                                                                 by Anne Cox 11/12/90



                  TREES
                  Black mangrove                                                                   Avicennia germinans
                  Gumbo limbo                                                                      Bursera simaruba
                  Australian pine *                                                                Casuarina equisetifolia
                  Pigeon plum                                                                      Coccoloba diversifolia
                  Seagrape                                                                         Coccoloba uvifera
                  Buttonwood                                                                       Conocarpus erecta
                  Royal poinciana (Cult)                                                           Delonix regia
                  Strangler fig                                                                    Ficus aurea
                  Blolly                                                                           Guapira discolor
                  White mangrove                                                                   Laguncularia racemosa
                  Ironwood                                                                         Krugiodendron ferreum
                  Sapodilla. (Cult)                                                                Manilkara zapota
                  Mastic                                                                           Mastichodendron foetidissimum
                  Chinaberry (Cult)*                                                               Melia azedarach
                  Red mulberry                                                                     Morus rubra
                  Red mangrove                                                                     Rhizophora mangle
                  Cabbage palm                                                                     Sabal palmetto
                  Bloodberry                                                                       Rivina humilis
                  Brazilian pepper  *                                                              Schinus terebinthifolius


                  SHRUBS
                  Flexible caper                                                                   Capparis flexuosa
                  Papaya *                                                                         Carica papaya
                  Snowberry                                                                        Chiococca alba
                  Coin vine                                                                        Dalbergia ecastophyllum
                  White stopper                                                                    Eugenia axillaris
                  Surinam cherry (Cult)*                                                           Eugenia uniflora
                  Spanish stopper                                                                  Eugenia foetida
                  Florida privett                                                                  Forestiera segregata
                  Wild coffee                                                                      Psychotria nervosa
                  Randia                                                                           Randia aculeata
                  Wild lime                                                                        Zanthoxylum fagara
                  Unknown shrub*


                  HERBS AND FORBS
                  Ragweed                                                                          Ambrosia artemisiifolia
                  Sea ox-eye daisy                                                                 Borrichia frutescens
                  Grey nicker                                                                      Caesalpinia bonduc
                  Periwinkle                                                                       Catharanthus roseus
                  Stinging nettle                                                                  Cnidoscolus stimulosus
                  Sedge                                                                            Cyperus sp.
                  Crowfoot grass                                                                   Dactyloctenium aegyptium
                  Seaside heliotrope                                                               Heliotropium curassavicum
                  Railroad vine                                                                    Ipomoea pescaprae
                  Iva                                                                              Iva imbricata
                  Wild balsam apple                                                                Momordica charantia
 









                 Prickly pear cactus                                                          Opuntia sp.
                 Corky passionflower                                                          Passiflora suberosa
                 Sea purslane                                                                 Sesuvium portulacastrum
                 Ball moss                                                                    Tillandsia recurvata
                 Unknown vine
                 Unknown shrub (purple flowers)

                 (Cult) Indicates cultivated. Possibly planted by previous owners of property.
                  * Indicates exotic, escaped from cultivation, or reseeding in the wild.
















                       PARTIAL PLANTLIST FOR SMALL ISLAND IMMEDIATELY SOUTH OF BURNT BRIDGE
                                                              by Anne Cox 11/12/90

                 TREES
                 Black mangrove                                                               Avicennia germinans
                 Seagrape                                                                     Coccoloba uvifera
                 Buttonwood                                                                   Conocarpus erecta
                 White mangrove                                                               Laguncularia racemosa
                 Cabbage palm                                                                 Sabal palmetto
                 Braziliain pepper *                                                          Schinus terebinthifolius

                 SHRUBS
                 Coin vine                                                                    Dalbergia ecastophyllum

                 HERBS AND FORBS
                 Sea ox-eye daisy                                                             Borrichia frutescens
                 Sea purselane                                                                Sesuvium portulacastrum

                   *Indicates exotic, escaped from cultivation, or reseeding in the wild.
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                                                                                                                               NOAA COASTAL SERVICES CTR LIBRARY



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