[Federal Register Volume 60, Number 243 (Tuesday, December 19, 1995)]
[Rules and Regulations]
[Pages 65382-65387]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 95-30254]
[[Page 65381]]
_______________________________________________________________________
Part II
Environmental Protection Agency
_______________________________________________________________________
40 CFR Part 60
Standards of Performance for Municipal Waste Combustors and Emission
Guidelines; Final Rules, Proposed Rule and Notice
Federal Register / Vol. 60, No. 243 / Tuesday, December 19, 1995 /
Rules and Regulations
[[Page 65382]]
ENVIRONMENTAL PROTECTION AGENCY
40 CFR Part 60
[AD-FRL-5327-3]
Standards of Performance for Municipal Waste Combustors
AGENCY: Environmental Protection Agency (EPA).
ACTION: Direct final rule.
-----------------------------------------------------------------------
SUMMARY: This action amends the ``Standards of Performance for
Municipal Waste Combustors'' (subpart Ea). These amendments are being
made to improve the clarity of subpart Ea and to make subpart Ea
consistent with subparts Eb and Cb.
DATES: The direct final rule Secs. 60.17, 60.50a, 60.51a, 60.56a,
60.58a, and 60.59a will be effective January 29, 1996 unless
significant adverse comments are received by January 18, 1996. If
significant adverse comments are received on any amendment in this
rule, that amendment will be withdrawn by timely publication in the
Federal Register. The incorporation by reference of certain
publications listed in this regulation is approved by the Director of
the Federal Register as of January 29, 1996.
FOR FURTHER INFORMATION CONTACT: Mr. Walter Stevenson at (919) 541-5264
or Mr. Fred Porter at (919) 541-5251, Combustion Group, Emission
Standards Division (MD-13), U.S. Environmental Protection Agency,
Research Triangle Park, North Carolina 27711.
SUPPLEMENTARY INFORMATION: If significant adverse comments are received
on any amendment of this direct final rule, the comments will be
addressed in a subsequent rulemaking in the Federal Register based on
those provisions of the proposed rule contained in the Proposed Rules
Section of this Federal Register that is identical to this direct final
rule. The amendments in question will be withdrawn from this direct
final rule. Amendments of the direct final rule that do not receive any
significant adverse comments will become final 40 days from today's
Federal Register notice. If no significant adverse comments are filed
on any provision of this direct final rule, then the entire direct
final rule will become effective 40 days from today's Federal Register
notice and no further action is contemplated on the parallel proposal
published today.
On February 11, 1991 (56 FR 5488), the EPA promulgated in the
Federal Register new source performance standards (NSPS) for municipal
waste combustors (MWC's) for which construction, modification, or
reconstruction is commenced after December 20, 1989. The regulations
were promulgated as subpart Ea in 40 CFR part 60.
Today's action modifies the applicability and definitions sections
of the final regulation to improve clarity and make them consistent
with those of subparts Eb (standards of performance for new MWC's for
which construction commenced after September 20, 1994 or modification
or reconstruction commenced after June 19, 1996, and Cb (emission
guidelines for existing MWC's for which construction commenced on or
before September 20, 1994) that are being promulgated in a separate
section of today's Federal Register. Today's changes do not
significantly modify the requirements of the regulation. The revisions
are discussed in the order in which they appear in the subpart Ea
regulation.
Preamble Outline: The following outline is provided to aid in
locating information in this preamble.
I. Description of Changes
A. Dates of Applicability
B. Applicability of Cofired Combustors and Tire-Burning
Facilities
C. Applicability of Subpart Ea to Certain Other Facilities
D. Definitions
1. Definitions of Modification and Reconstruction
2. Definition of MSW and Calculation of MWC Unit Capacity
3. Definition of an MWC
E. Clarification of the Carbon Monoxide Standard
F. Update of Operator Training Specifications
G. Clarification of MWC Unit Load Measurement
II. Judicial Review
III. Administrative
A. Paperwork Reduction Act
B. Executive Order 12291 Review
C. Regulatory Flexibility Act
I. Description of Changes
A. Dates of Applicability
Subpart Ea is applicable to MWC units with capacities greater than
225 megagrams per day (Mg/day) of municipal solid waste (MSW) for which
construction, modification, or reconstruction was commenced after
December 20, 1989. To avoid overlap with the subpart Eb NSPS, the dates
for applicability for subpart Ea specified in Sec. 60.50a(a) are being
changed to apply to MWC's (1) commencing construction after December
20, 1989 and on or before September 20, 1994 or (2) commencing
modification or reconstruction after December 20, 1989 and on or before
June 19, 1996. The MWC plants that commence construction after
September 20, 1994 or that commence modification or reconstruction
after June 19, 1996 are subject to subpart Eb, which is more stringent
than subpart Ea. The change is also being made to subpart Ea to avoid
the same MWC plant being subject to duplicative requirements under two
NSPS (subparts Ea and Eb). This change is reflected in the definitions
for ``MWC plant'' and ``MWC plant capacity'' in Sec. 60.51a. It should
be noted that plants that are subject to subpart Ea will also be
subject to the emission guidelines contained in subpart Cb, which apply
to plants constructed on or before September 20, 1994.
B. Applicability to Cofired Combustors and Tire-Burning Facilities
The wording in Sec. 60.50a (c), (d), and (e) is being changed so
that cofired facilities and facilities that only burn tires are clearly
defined as not being subject to any sections of subpart Ea. Currently,
they are exempt from all requirements of subpart Ea except
recordkeeping requirements. This change will make subpart Ea consistent
with subparts Eb and Cb. It will also clarify that, for purposes of the
title V operating permits program, such facilities are not considered
subject to subpart Ea. In addition, because the applicability to
cofired combustors has been clarified, the definition of ``cofired
combustor'' has been revised in Sec. 60.51a. Relative to these changes,
Sec. 60.58(j)(3) is being removed and items in Sec. 60.59a (a)(1),
(b)(14), and (m) are being moved to Sec. 60.50a(d).
C. Applicability of Subpart Ea to Certain Other Facilities
Section 129 of the Clean Air Act (Act) specifies that qualifying
cogeneration facilities, qualifying small independent power producers,
Solid Waste Disposal Act section 3005 permitted facilities, and
materials recovery facilities recovering metals are not MWC's and are
not regulated under section 129. Subparts Eb and Cb specify that these
units are not subject to subparts Eb and Cb. Additionally, subparts Eb
and Cb specify that pyrolysis/combustion units that are an integrated
part of a plastics/ rubber processing unit are not subject to the MWC
regulations. These exemptions are being incorporated into subpart Ea
(Sec. 60.50a (g), (h), (i), (j), and (k)) to be consistent with
subparts Eb and Cb.
D. Definitions
Revisions are being made to 13 definitions, 13 new definitions are
being added, and 2 are being deleted to clarify subpart Ea and make it
consistent with
[[Page 65383]]
the terms defined in subpart Eb. Several of these definitions are
discussed below.
1. Definitions of Modification and Reconstruction
Two new terms, ``modification'' (or ``modified municipal waste
combustor'') and ``reconstruction'', are being added to Sec. 60.51a to
incorporate the section 129 definition of ``modified solid waste
incineration unit.'' These definitions are very similar to the
definitions of these two terms in Secs. 60.14 and 60.15 of 40 CFR 60
subpart A (the NSPS general provisions). The addition of these
definitions will clarify subpart Ea and make the terms used in subparts
Ea, Eb, Cb, and section 129 relating to modification and reconstruction
consistent with each other.
2. Definition of MSW and Calculation of MWC Unit Capacity
To avoid confusion and possible conflict with the pending medical
waste incinerator (MWI) regulations which were proposed in February
1995 and are scheduled to be promulgated in the near future, the
definition of MSW in Sec. 60.51a of subpart Ea is being revised to be
consistent with subparts Eb and Cb. Additionally, the determination of
``MWC unit capacity'' in Sec. 60.58a(j)(4) and its definition in
Sec. 60.51a are being revised so that only a single heat input value is
used for MSW. This change is being made so that subpart Ea will be
consistent with subparts Eb and Cb. Section 60.59a(b)(15) is also being
deleted.
In addition to the clarification concerning medical waste, the
definition of MSW in Sec. 60.51a is being revised to specify that
``clean wood'' is excluded, while refuse-derived fuel (RDF) and yard
waste are included. To ensure clarity, definitions for ``clean wood'',
``untreated lumber'', and ``yard waste'' are being added to
Sec. 60.51a. Because the definition of MSW is being revised to clarify
that RDF is a type of preprocessed MSW and not a different type of
waste, the phrase ``MSW or RDF'' in several paragraphs is being
replaced with ``MSW'' to avoid redundancy. These clarifications are
consistent with the intent of subpart Ea, and will make the definition
of MSW consistent with subparts Eb and Cb.
3. Definition of an MWC
The definition of an MWC in Sec. 60.51a is being revised to be
consistent with that in subpart Eb. The most significant difference is
the addition of a description of the physical boundaries of an MWC. The
clarification of the boundaries of the affected facility will assist in
considering cost for making reconstruction determinations.
E. Clarification of the Carbon Monoxide Standard
The specifications for the carbon monoxide (CO) standards in
Secs. 60.56a(a) and 60.58(a) (h)(1) and (h)(2) are being revised to
clarify the EPA's intent as to which standard applies to which
combustor type. It was intended that the mass burn refractory unit CO
standard apply to both mass burn refractory units and rotary mass burn
refractory units. This was not clear in the promulgated regulation
because the definition in Sec. 60.51a of mass burn refractory units
excluded rotary mass burn refractory units. In order to clarify this,
the definition of mass burn refractory unit is being clarified to
include rotary mass burn rotary refractory units.
It was also intended that the CO standard for coal/RDF mixed fuel-
fired units be applicable to pulverized coal-type units, as opposed to
spreader stoker-type units that would fall under the RDF stoker
standard. Accordingly, the coal/RDF mixed fuel-fired combustor CO
standard is being renamed the pulverized coal/RDF mixed fuel-fired
combustor CO standard, and a CO standard for spreader stoker coal/RDF
mixed fuel-fired combustors equivalent to the RDF stoker standard is
being listed separately. Corresponding definitions are being added and
revised in Sec. 60.51a.
F. Update of Operator Training Specifications
The operator training requirements in Sec. 60.56a(d) specify that
provisional or operator certification shall be obtained in accordance
with the American Society of Mechanical Engineers (ASME) QRO-1-1989
requirements or an equivalent State-approved certification program. The
ASME standard was updated in 1994 and so, to be consistent with
subparts Eb and Cb, the reference is being updated to QRO-1-1994.
G. Clarification of MWC Unit Load Measurement
The MWC unit load measurement specified in Sec. 60.58a(h)(6) is
being modified to include feedwater flow monitoring as an alternative
to steam flow measurement. The wording of this section is being revised
to match the wording in subparts Eb and Cb and a definition of ``MWC
unit load'' is being added to Sec. 60.51a.
II. Judicial Review
Under section 307(b)(1) of the Act, judicial review of the actions
taken by this final rule is available only on the filing of a petition
for review in the U.S. Court of Appeals for the District of Columbia
Circuit within 60 days of today's publication of this action. Under
section 307(b)(2) of the Act, the requirements that are subject to
today's rule may not be challenged later in civil or criminal
proceedings brought by the EPA to enforce these requirements.
III. Administrative
A. Paperwork Reduction Act
The information collection requirements of the previously
promulgated NSPS were submitted to and approved by the Office of
Management and Budget (OMB). A copy of this Information Collection
Request (ICR) document (the ICR number is 1506.4, with an OMB approval
number 2060-0210) may be obtained from Sandy Farmer, Regulatory
Information Division (Code 2136), U.S. Environmental Protection Agency,
401 M Street, SW, Washington, DC 20460 or by calling (202) 260-2740.
Today's changes to the NSPS will have no significant impact on the
information collection burden estimates made previously. The burden
will be reduced slightly. Consequently, the ICR has not been revised.
B. Executive Order 12291 Review
The MWC NSPS promulgated on February 11, 1991 was considered a
``major rule'' under Executive Order 12291 and a regulatory impact
analysis (RIA) was prepared. The amendments issued today clarify the
rule and do not add any additional control requirements. The EPA
concludes these amendments would have a negligible impact on the
results of the RIA and the change is considered to be within the
flexibility of the analysis.
C. Regulatory Flexibility Act
The Regulatory Flexibility Act of 1980 requires the identification
of potentially adverse impacts of Federal regulations upon small
business entities. The Act specifically requires the completion of a
regulatory flexibility analysis in those instances where small business
impacts are possible. Because this rulemaking imposes no adverse
economic impacts, a regulatory flexibility analysis has not been
prepared.
List of Subjects in 40 CFR Part 60
Environmental protection, Air pollution control, Incorporation by
reference, Reporting and recordkeeping requirements.
[[Page 65384]]
Dated: October 31, 1995.
Carol M. Browner,
Administrator.
For reasons set out in the preamble, title 40, chapter I, part 60,
subpart Ea of the Code of Federal Regulations is corrected as follows:
PART 60--[AMENDED]
1. The authority citation for part 60 is revised to read as
follows:
Authority: 42 U.S.C. 7401, 7411, 7414, 7416, 7429, and 7601.
Subpart Ea Heading--[Revised]
2. The heading for subpart Ea is revised to read as follows:
Subpart Ea--Standards of Performance for Municipal Waste Combustors
for which Construction is Commenced after December 20, 1989 and on
or before September 20, 1994
3. Section 60.17 of subpart A of part 60 is amended by revising
paragraphs (h)(1), (h)(2), and (h)(3) to read as follows:
Sec. 60.17 Incorporation by reference.
* * * * *
(h) * * *
(1) ASME QRO-1-1994, Standard for the Qualification and
Certification of Resource Recovery Facility Operators, IBR approved for
Sec. 60.56a.
(2) ASME PTC 4.1-1964 (Reaffirmed 1991), Power Test Codes: Test
Code for Steam Generating Units (with 1968 and 1969 Addenda), IBR
approved for Secs. 60.46b and 60.58a(h)(6)(ii).
(3) ASME Interim Supplement 19.5 on Instruments and Apparatus:
Application, Part II of Fluid Meters, 6th Edition (1971), IBR approved
for Sec. 60.58a(h)(6)(ii).
* * * * *
4. Section 60.50a is amended by revising paragraphs (a), (c), (d),
(e), and (f), removing paragraph (g), redesignating paragraph (h) as
paragraph (l), redesignating paragraph (i) as paragraph (m), and adding
new paragraphs (g), (h), (i), (j), and (k) to read as follows:
Sec. 60.50a Applicability and delegation of authority.
(a) The affected facility to which this subpart applies is each
municipal waste combustor unit with a municipal waste combustor unit
capacity greater than 225 megagrams per day (250 tons per day) of
municipal solid waste for which construction, modification, or
reconstruction is commenced as specified in paragraphs (a)(1) and
(a)(2) of this section.
(1) Construction is commenced after December 20, 1989 and on or
before September 20, 1994.
(2) Modification or reconstruction is commenced after December 20,
1989 and on or before June 19, 1996.
* * * * *
(c) Any unit combusting a single-item waste stream of tires is not
subject to this subpart if the owner or operator of the unit:
(1) Notifies the Administrator of an exemption claim; and
(2) Provides data documenting that the unit qualifies for this
exemption.
(d) Any cofired combustor, as defined under Sec. 60.51a, located at
a plant that meets the capacity specifications in paragraph (a) of this
section is not subject to this subpart if the owner or operator of the
cofired combustor:
(1) Notifies the Administrator of an exemption claim;
(2) Provides a copy of the federally enforceable permit (specified
in the definition of cofired combustor in this section); and
(3) Keeps a record on a calendar quarter basis of the weight of
municipal solid waste combusted at the cofired combustor and the weight
of all other fuels combusted at the cofired combustor.
(e) Any cofired combustor that is subject to a federally
enforceable permit limiting the operation of the combustor to no more
than 225 megagrams per day (250 tons per day) of municipal solid waste
is not subject to this subpart.
(f) Physical or operational changes made to an existing municipal
waste combustor unit primarily for the purpose of complying with
emission guidelines under subpart Cb are not considered a modification
or reconstruction and do not result in an existing municipal waste
combustor unit becoming subject to this subpart.
(g) A qualifying small power production facility, as defined in
section 3(17)(C) of the Federal Power Act (16 U.S.C. 796(17)(C)), that
burns homogeneous waste (such as automotive tires or used oil, but not
including refuse-derived fuel) for the production of electric energy is
not subject to this subpart if the owner or operator of the facility
notifies the Administrator of an exemption claim and provides data
documenting that the facility qualifies for this exemption.
(h) A qualifying cogeneration facility, as defined in section
3(18)(B) of the Federal Power Act (16 U.S.C. 796(18)(B)), that burns
homogeneous waste (such as automotive tires or used oil, but not
including refuse-derived fuel) for the production of electric energy
and steam or forms of useful energy (such as heat) that are used for
industrial, commercial, heating, or cooling purposes, is not subject to
this subpart if the owner or operator of the facility notifies the
Administrator of an exemption claim and provides data documenting that
the facility qualifies for this exemption.
(i) Any unit required to have a permit under section 3005 of the
Solid Waste Disposal Act is not subject to this subpart.
(j) Any materials recovery facility (including primary or secondary
smelters) that combusts waste for the primary purpose of recovering
metals is not subject to this subpart.
(k) Pyrolysis/combustion units that are an integrated part of a
plastics/rubber recycling unit (as defined in Sec. 60.51a) are not
subject to this subpart if the owner or operator of the plastics/rubber
recycling unit keeps records of: the weight of plastics, rubber, and/or
rubber tires processed on a calendar quarter basis; the weight of
chemical plant feedstocks and petroleum refinery feedstocks produced
and marketed on a calendar quarter basis; and the name and address of
the purchaser of the feedstocks. The combustion of gasoline, diesel
fuel, jet fuel, fuel oils, residual oil, refinery gas, petroleum coke,
liquified petroleum gas, propane, or butane produced by chemical plants
or petroleum refineries that use feedstocks produced by plastics/rubber
recycling units are not subject to this subpart.
* * * * *
5. Section 60.51a is amended:
a. by removing the definitions of ``coal/RDF mixed fuel fired
combustor'', ``large MWC plant'', ``mass burn refractory MWC'', ``mass
burn rotary waterwall MWC'', ``mass burn waterwall MWC'', ``maximum
demonstrated MWC unit load'', ``medical waste'', ``municipal-type solid
waste or MSW'', ``municipal waste combustor or MWC unit'', ``MWC
plant'', ``MWC plant capacity'', and ``MWC unit capacity'', and;
b. by revising the definitions for ``cofired combustor'', ``maximum
demonstrated particulate matter control device temperature'', and
``standard conditions'', and;
c. by adding new entries to the section. The revised entries and
the new entries are set out to read as follows:
Sec. 60.51a Definitions.
* * * * *
Calendar quarter means a consecutive 3-month period
(nonoverlapping) beginning on January 1, April 1, July 1, and October
1.
* * * * *
[[Page 65385]]
Clean wood means untreated wood or untreated wood products
including clean untreated lumber, tree stumps (whole or chipped), and
tree limbs (whole or chipped). Clean wood does not include yard waste,
which is defined elsewhere in this section, or construction,
renovation, and demolition wastes (which includes but is not limited to
railroad ties and telephone poles), which are exempt from the
definition of municipal solid waste in this section.
Cofired combustor means a unit combusting municipal solid waste
with nonmunicipal solid waste fuel (e.g., coal, industrial process
waste) and subject to a federally enforceable permit limiting the unit
to combusting a fuel feed stream, 30 percent or less of the weight of
which is comprised, in aggregate, of municipal solid waste as measured
on a calendar quarter basis.
* * * * *
Large municipal waste combustor plant means a municipal waste
combustor plant with a municipal waste combustor aggregate plant
capacity for affected facilities that is greater than 225 megagrams per
day (250 tons per day) of municipal solid waste.
Mass burn refractory municipal waste combustor means a field-
erected combustor that combusts municipal solid waste in a refractory
wall furnace. Unless otherwise specified, this includes combustors with
a cylindrical rotary refractory wall furnace.
Mass burn rotary waterwall municipal waste combustor means a field-
erected combustor that combusts municipal solid waste in a cylindrical
rotary waterwall furnace.
Mass burn waterwall municipal waste combustor means a field-erected
combustor that combusts municipal solid waste in a waterwall furnace.
Maximum demonstrated municipal waste combustor unit load means the
highest 4-hour arithmetic average municipal waste combustor unit load
achieved during four consecutive hours during the most recent dioxin/
furan performance test demonstrating compliance with the applicable
limit for municipal waste combustor organics specified under
Sec. 60.53a.
Maximum demonstrated particulate matter control device temperature
means the highest 4-hour arithmetic average flue gas temperature
measured at the particulate matter control device inlet during four
consecutive hours during the most recent dioxin/furan performance test
demonstrating compliance with the applicable limit for municipal waste
combustor organics specified under Sec. 60.53a.
* * * * *
Modification or modified municipal waste combustor unit means a
municipal waste combustor unit to which changes have been made if the
cumulative cost of the changes, over the life of the unit, exceed 50
percent of the original cost of construction and installation of the
unit (not including the cost of any land purchased in connection with
such construction or installation) updated to current costs; or any
physical change in the municipal waste combustor unit or change in the
method of operation of the municipal waste combustor unit increases the
amount of any air pollutant emitted by the unit for which standards
have been established under section 129 or section 111. Increases in
the amount of any air pollutant emitted by the municipal waste
combustor unit are determined at 100-percent physical load capability
and downstream of all air pollution control devices, with no
consideration given for load restrictions based on permits or other
nonphysical operational restrictions.
* * * * *
Municipal solid waste or municipal-type solid waste or MSW means
household, commercial/retail, and/or institutional waste. Household
waste includes material discarded by single and multiple residential
dwellings, hotels, motels, and other similar permanent or temporary
housing establishments or facilities. Commercial/retail waste includes
material discarded by stores, offices, restaurants, warehouses,
nonmanufacturing activities at industrial facilities, and other similar
establishments or facilities. Institutional waste includes material
discarded by schools, nonmedical waste discarded by hospitals, material
discarded by nonmanufacturing activities at prisons and government
facilities, and material discarded by other similar establishments or
facilities. Household, commercial/retail, and institutional waste does
not include used oil; sewage sludge; wood pallets; construction,
renovation, and demolition wastes (which includes but is not limited to
railroad ties and telephone poles); clean wood; industrial process or
manufacturing wastes; medical waste; or motor vehicles (including motor
vehicle parts or vehicle fluff). Household, commercial/retail, and
institutional wastes include:
(1) Yard waste;
(2) Refuse-derived fuel; and
(3) Motor vehicle maintenance materials limited to vehicle
batteries and tires except as specified in Sec. 60.50a(c).
Municipal waste combustor, MWC, or municipal waste combustor unit:
(1) Means any setting or equipment that combusts solid, liquid, or
gasified MSW including, but not limited to, field-erected incinerators
(with or without heat recovery), modular incinerators (starved-air or
excess-air), boilers (i.e., steam-generating units), furnaces (whether
suspension-fired, grate-fired, mass-fired, air curtain incinerators, or
fluidized bed-fired), and pyrolysis/combustion units. Municipal waste
combustors do not include pyrolysis/combustion units located at
plastics/ rubber recycling units (as specified in Sec. 60.50a(k) of
this section). Municipal waste combustors do not include internal
combustion engines, gas turbines, or other combustion devices that
combust landfill gases collected by landfill gas collection systems.
(2) The boundaries of an MWC are defined as follows. The MWC unit
includes, but is not limited to, the MSW fuel feed system, grate
system, flue gas system, bottom ash system, and the combustor water
system. The MWC boundary starts at the MSW pit or hopper and extends
through:
(i) The combustor flue gas system, which ends immediately following
the heat recovery equipment or, if there is no heat recovery equipment,
immediately following the combustion chamber;
(ii) The combustor bottom ash system, which ends at the truck
loading station or similar ash handling equipment that transfer the ash
to final disposal, including all ash handling systems that are
connected to the bottom ash handling system; and
(iii) The combustor water system, which starts at the feed water
pump and ends at the piping exiting the steam drum or superheater.
(3) The MWC unit does not include air pollution control equipment,
the stack, water treatment equipment, or the turbine generator set.
* * * * *
Municipal waste combustor plant means one or more MWC units at the
same location for which construction, modification, or reconstruction
is commenced after December 20, 1989 and on or before September 20,
1994.
Municipal waste combustor plant capacity means the aggregate MWC
unit capacity of all MWC units at an MWC plant for which construction,
modification, or reconstruction of the units commenced after December
20,
[[Page 65386]]
1989 and on or before September 20, 1994. Any MWC units for which
construction, modification, or reconstruction is commenced on or before
December 20, 1989 or after September 20, 1994 are not included for
determining applicability under this subpart.
Municipal waste combustor unit capacity means the maximum design
charging rate of an MWC unit expressed in megagrams per day (tons per
day) of MSW combusted, calculated according to the procedures under
Sec. 60.58a(j). Municipal waste combustor unit capacity is calculated
using a design heating value of 10,500 kilojoules per kilogram (4,500
British thermal units per pound) for MSW. The calculational procedures
under Sec. 60.58a(j) include procedures for determining MWC unit
capacity for continuous and batch feed MWC's.
Municipal waste combustor unit load means the steam load of the MWC
unit measured as specified in Sec. 60.58a(h)(6).
* * * * *
Plastics/rubber recycling unit means an integrated processing unit
where plastics, rubber, and/or rubber tires are the only feed materials
(incidental contaminants may be included in the feed materials) and
they are processed into a chemical plant feedstock or petroleum
refinery feedstock, where the feedstock is marketed to and used by a
chemical plant or petroleum refinery as input feedstock. The combined
weight of the chemical plant feedstock and petroleum refinery feedstock
produced by the plastics/rubber recycling unit on a calendar quarter
basis shall be more than 70 percent of the combined weight of the
plastics, rubber, and rubber tires processed by the plastics/rubber
recycling unit on a calendar quarter basis. The plastics, rubber, and/
or rubber tire feed materials to the plastics/rubber recycling unit may
originate from the separation or diversion of plastics, rubber, or
rubber tires from MSW or industrial solid waste, and may include
manufacturing scraps, trimmings, and off-specification plastics,
rubber, and rubber tire discards. The plastics, rubber, and rubber tire
feed materials to the plastics/rubber recycling unit may contain
incidental contaminants (e.g., paper labels on plastic bottles, metal
rings on plastic bottle caps, etc.).
* * * * *
Pulverized coal/refuse-derived fuel mixed fuel-fired combustor or
pulverized coal/RDF mixed fuel-fired combustor means a combustor that
fires coal and RDF simultaneously, in which pulverized coal is
introduced into an air stream that carries the coal to the combustion
chamber of the unit where it is fired in suspension. This includes both
conventional pulverized coal and micropulverized coal.
Pyrolysis/combustion unit means a unit that produces gases,
liquids, or solids through the heating of MSW, and the gases, liquids,
or solids produced are combusted and emissions vented to the
atmosphere.
Reconstruction means rebuilding an MWC unit for which the
cumulative costs of the construction over the life of the unit exceed
50 percent of the original cost of construction and installation of the
unit (not including any cost of land purchased in connection with such
construction or installation) updated to current costs (current
dollars).
Refractory unit or refractory wall furnace means a combustion unit
having no energy recovery (e.g., via a waterwall) in the furnace (i.e.,
radiant heat transfer section) of the combustor.
* * * * *
Spreader stoker coal/refuse-derived fuel mixed fuel-fired combustor
or spreader stoker coal/RDF mixed fuel-fired combustor means a
combustor that fires coal and refuse-derived fuel simultaneously, in
which coal is introduced to the combustion zone by a mechanism that
throws the fuel onto a grate from above. Combustion takes place both in
suspension and on the grate.
Standard conditions means a temperature of 20 deg.C (68 deg.F)
and a pressure of 101.3 kilopascals (29.92 inches of mercury).
* * * * *
Untreated lumber means wood or wood products that have been cut or
shaped and include wet, air-dried, and kiln-dried wood products.
Untreated lumber does not include wood products that have been painted,
pigment-stained, or ``pressure-treated.'' Pressure-treating compounds
include, but are not limited to, chromate copper arsenate,
pentachlorophenol, and creosote.
Waterwall furnace means a combustion unit having energy (heat)
recovery in the furnace (i.e., radiant heat transfer section) of the
combustor.
Yard waste means grass, grass clippings, bushes, shrubs, and
clippings from bushes and shrubs that are generated by residential,
commercial/retail, institutional, and/or industrial sources as part of
maintenance activities associated with yards or other private or public
lands. Yard waste does not include construction, renovation, and
demolition wastes, which are exempt from the definition of MSW in this
section. Yard waste does not include clean wood, which is exempt from
the definition of MSW in this section.
6. Section 60.56a, paragraph (a), Table 1, is amended by removing
the entry for ``Coal/RDF mixed fuel-fired combustors'' and adding
entries for ``Pulverized coal/RDF mixed fuel-fired combustor'' and
``Spreader stoker coal/RDF mixed fuel-fired combustor'' to the end of
the table; by revising paragraph (d); and by removing and reserving
paragraph (f)(9) to read as follows:
Sec. 60.56a Standards for municipal waste combustor operating
practices.
(a) * * *
Table 1.--MWC Operating Standards
------------------------------------------------------------------------
Carbon monoxide
emission limit
MWC technology (parts per
million by
volume)\1\
------------------------------------------------------------------------
* * * *
* * *
Pulverized coal/RDF mixed fuel-fired combustor........ 150
Spreader stoker coal/RDF mixed fuel-fired combustor... 150
------------------------------------------------------------------------
\1\ Measured at the combustor outlet in conjunction with a measurement
of oxygen concentration, corrected to 7 percent oxygen (dry basis).
The averaging times are specified in Sec. 60.58a(h).
* * * * *
(d) Within 24 months from the date of start-up of an affected
facility or before February 11, 1993, whichever is later, each chief
facility operator and shift
[[Page 65387]]
supervisor of an affected faciltiy located within a large MWC plant
shall obtain and keep current either a provisional or operator
certification in accordance with ASME QRO-1-1994 (incorporated by
reference, see Sec. 60.17) or an equivalent State-approved
certification program.
* * * * *
(f) * * *
(9) [Reserved]
* * * * *
7. Section 60.58a is amended by revising paragraphs (h)(1), (h)(2),
(h)(6)(i), (h)(6)(ii), and (h)(10), redesignating paragraph (h)(6)(iii)
as paragraph (h)(6)(v), adding new paragraphs (h)(6)(iii) and
(h)(6)(iv), removing and reserving paragraph (j)(3), and revising
paragraph (j)(4), to read as follows:
Sec. 60.58a Compliance and performance testing.
* * * * *
(h) * * *
(1) Compliance with the carbon monoxide emission limits in
Sec. 60.56a(a) shall be determined using a 4-hour block arithmetic
average for all types of affected facilities except mass burn rotary
waterwall MWC's, RDF stokers, and spreader stoker/RDF mixed fuel-fired
combustors.
(2) For affected mass burn rotary waterwall MWC's, RDF stokers, and
spreader stoker/RDF mixed fuel-fired combustors, compliance with the
carbon monoxide emission limits in Sec. 60.56a(a) shall be determined
using a 24-hour daily arithmetic average.
* * * * *
(6) * * *
(i) The owner or operator of an affected facility with steam
generation capability shall install, calibrate, maintain, and operate a
steam flow meter or a feedwater flow meter; measure steam or feedwater
flow in kilograms per hour (pounds per hour) on a continuous basis; and
record the output of the monitor. Steam or feedwater flow shall be
calculated in 4-hour block arithmetic averages.
(ii) The method included in ``American Society of Mechanical
Engineers Power Test Codes: Test Code for Steam Generating Units, Power
Test Code 4.1--1964'', Section 4 (incorporated by reference, see
Sec. 60.17) shall be used for calculating the steam (or feedwater flow)
required under paragraph (h)(6)(i) of this section. The recommendations
of ``American Society of Mechanical Engineers Interim Supplement 19.5
on Instruments and Apparatus: Application, Part II of Fluid Meters, 6th
edition (1971),'' chapter 4 (incorporated by reference, see Sec. 60.17)
shall be followed for design, construction, installation, calibration,
and use of nozzles and orifices except as specified in (h)(6)(iii) of
this section.
(iii) Measurement devices such as flow nozzles and orifices are not
required to be recalibrated after they are installed.
(iv) All signal conversion elements associated with steam (or
feedwater flow) measurements must be calibrated according to the
manufacturer's instructions before each dioxin/furan compliance and
performance test, and at least once per year.
* * * * *
(10) At a minimum, valid CEMS data for carbon monoxide, steam or
feedwater flow, and particulate matter control device inlet temperature
shall be obtained 75 percent of the hours per day for 75 percent of the
days per month the affected facility is operated and combusting MSW.
* * * * *
(j) * * *
(3) [Reserved]
(4) The MWC unit capacity shall be calculated using a design
heating value of 10,500 kilojoules per kilogram (4,500 British thermal
units per pound) for all MSW.
* * * * *
Sec. 60.59a [Amended]
8. Section 60.59a is amended by removing paragraphs (a)(1),
(b)(14), (b)(15), and (m), and removing the third sentence of paragraph
(e).
[FR Doc. 95-30254 Filed 12-18-95; 8:45 am]
BILLING CODE 6560-50-P