Wisconsin Administrative Code
Department of Natural Resources
NR 600-699 - Environmental Protection - Hazardous Waste Management
Chapter NR 665 - Interim License Hazardous Waste Treatment, Storage And Disposal Facility Standards
Subchapter CC - Air Emission Standards for Tanks, Surface Impoundments and Containers
Section NR 665.1084 - Waste determination procedures
Universal Citation: WI Admin Code ยง NR 665.1084
Current through August 26, 2024
(1) PROCEDURE TO DETERMINE AVERAGE VO CONCENTRATION OF A HAZARDOUS WASTE AT THE POINT OF WASTE ORIGINATION.
(a) An owner or operator shall
determine the average VO concentration at the point of waste origination for
each hazardous waste placed in a waste management unit exempted under s.
NR 665.1083(3) (a) from using air emission controls according
to the standards in ss.
NR 665.1085 to 665.1088, as applicable to the waste management unit. Make the determinations
according to all of the following:
1. Make an
initial determination of the average VO concentration of the waste stream
before the first time any portion of the material in the hazardous waste stream
is placed in a waste management unit exempted under s.
NR 665.1083(3)
(a) from using air emission controls, and
thereafter make an initial determination of the average VO concentration of the
waste stream for each averaging period that a hazardous waste is managed in the
unit.
2. Perform a new waste
determination whenever changes to the source generating the waste stream are
reasonably likely to cause the average VO concentration of the hazardous waste
to increase to a level that is equal to or greater than the VO concentration
limit in s.
NR 665.1083(3)
(a).
(b) For a waste determination that is
required by par. (a), determine the average VO concentration of a hazardous
waste at the point of waste origination using either direct measurement as
specified in par. (c) or by knowledge as specified in par. (d).
(c) If the owner or operator uses direct
measurement to determine average VO concentration of a hazardous waste at the
point of waste origination, the owner or operator shall do all of the
following:
1. `Identification.' Identify and
record the point of waste origination for the hazardous waste.
2. `Sampling.' Collect samples of the
hazardous waste stream at the point of waste origination in a manner that
minimizes volatilization of organics contained in the waste and in the
subsequent sample and collects and maintains an adequately representative
sample for analysis by the selected method.
a.
Designate and record the averaging period to be used for determining the
average VO concentration for the hazardous waste stream on a mass-weighted
average basis. The averaging period can represent any time interval that the
owner or operator determines is appropriate for the hazardous waste stream but
may not exceed one year.
b. Collect
and analyze a sufficient number of samples, but no less than 4, for a hazardous
waste determination. Collect all of the samples for a given waste determination
within a one-hour period. The average of the 4 or more sample results
constitutes a waste determination for the waste stream. One or more waste
determinations may be required to represent the complete range of waste
compositions and quantities that occur during the entire averaging period due
to normal variations in the operating conditions for the source or process
generating the hazardous waste stream. Examples of the normal variations are
seasonal variations in waste quantity or fluctuations in ambient
temperature.
c. Collect and handle
all samples according to written procedures prepared by the owner or operator
and documented in a site sampling plan. The plan shall describe the procedure
for collecting representative samples of the hazardous waste stream which
minimizes loss of organics throughout the sample collection and handling
process and maintains sample integrity. Maintain a copy of the written sampling
plan on-site in the facility operating records. An example of acceptable sample
collection and handling procedures for a total volatile organic constituent
concentration may be found in Method 25D in Appendix A of 40 CFR part 60, incorporated by reference in s.
NR 660.11.
d.
Prepare and record sufficient information, as specified in the site sampling
plan required under subd. 2. c., to document the waste quantity represented by
the samples and, as applicable, the operating conditions for the source or
process generating the hazardous waste represented by the samples.
3. `Analysis.' Prepare and analyze
each collected sample according to Method 25D in Appendix A of 40 CFR part 60
for the total concentration of volatile organic constituents, or using one or
more methods when the individual organic compound concentrations are identified
and summed and the summed waste concentration accounts for and reflects all
organic compounds in the waste with Henry's law constant values of at least 0.1
mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X)
[which can also be expressed as 1.8 x 10-6 atmospheres/gram-mole/m3] at
25°C. At the owner or operator's discretion, the owner or operator may
adjust test data obtained by any appropriate method to discount any
contribution to the total volatile organic concentration that is a result of
including a Henry's law constant value of less than 0.1 Y/X at 25°C. To
adjust these data, the measured concentration of each individual chemical
constituent contained in the waste is multiplied by the appropriate
constituent-specific adjustment factor (fm25D). If the owner or operator elects
to adjust test data, the adjustment shall be made to all individual chemical
constituents with a Henry's law constant value greater than or equal to 0.1 Y/X
at 25°C contained in the waste. Constituent specific adjustment factors
(fm25D) can be obtained by contacting the Waste and Chemical Processes Group,
Office of Air Quality Planning and Standards, Research Triangle Park, NC 27711.
Other test methods may be used if they meet the requirements in subd. 3. a. or
b. and provided the requirement to reflect all organic compounds in the waste
with Henry's law constant values greater than or equal to 0.1 Y/X [which can
also be expressed as 1.8 x 10-6 atmospheres/gram-mole/m3] at 25°C, is met.
a. Any EPA standard method that has been
validated according to "Alternative Validation Procedure for EPA Waste and
Wastewater Methods," Appendix D of 40 CFR part 63.
b. Any other analysis method that has been
validated according to the procedures specified in Section 5.1 or Section 5.3,
and the corresponding calculations in Section 6.1 or Section 6.3, of Method 301
in Appendix A of 40 CFR part 63, incorporated by reference in s.
NR 660.11. The data are acceptable if they meet the
criteria specified in Section 6.1.5 or Section 6.3.3 of Method 301. If
correction is required under section 6.3.3 of Method 301, the data are
acceptable if the correction factor is within the range 0.7 to 1.30. Other
sections of Method 301 are not required.
4. 'Calculations.'
a. Calculate the average VO concentration
(-C) on a mass-weighted basis using the results for
all waste determinations conducted according to subds. 2. and 3. and the
following equation:
where:
-C = Average VO concentration of the hazardous waste at the point of waste origination on a mass-weighted basis, ppmw
i = Individual waste determination "i" of the hazardous waste
n = Total number of waste determinations of the hazardous waste conducted for the averaging period (not to exceed 1 year)
Qi = Mass quantity of hazardous waste stream represented by C i, kg/hr
QT = Total mass quantity of hazardous waste during the averaging period, kg/hr
Ci = Measured VO concentration of waste determination " i" determined according to subd. 3. (i.e. the average of the 4 or more samples specified in subd. 2. b.), ppmw
b. For the purpose of determining C i, for
individual waste samples analyzed according to subd. 3., account for VO
concentrations determined to be below the limit of detection of the analytical
method by using the following VO concentration:
1) If Method 25D in appendix A of 40 CFR part
60, incorporated by reference in s.
NR 660.11, is used for the analysis, one-half the blank
value determined in the method at section 4.4 of Method 25D.
2) If any other analytical method is used,
one-half the sum of the limits of detection established for each organic
constituent in the waste that has a Henry's law constant value of at least 0.1
mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X)
[which can also be expressed as 1.8 x 10 -6 atmospheres/gram-mole/m 3] at 25
°C.
5.
`Compliance determination.' Provided that the test method is appropriate for
the waste as required under subd. 3., the department shall determine compliance
based on the test method used by the owner or operator recorded pursuant to s.
NR 665.1090(6)
(a).
(d) If the owner or operator uses knowledge
to determine average VO concentration of a hazardous waste at the point of
waste origination, the owner or operator shall do the following:
1. Prepare documentation that presents the
information used as the basis for the owner's or operator's knowledge of the
hazardous waste stream's average VO concentration. Examples of information that
may be used as the basis for knowledge include material balances for the source
or process generating the hazardous waste stream, constituent-specific chemical
test data for the hazardous waste stream from previous testing that are still
applicable to the current waste stream, previous test data for other locations
managing the same type of waste stream or other knowledge based on information
included in manifests, shipping papers or waste certification
notices.
2. If test data are used
as the basis for knowledge, document the test method, sampling protocol and the
means by which sampling variability and analytical variability are accounted
for in the determination of the average VO concentration. For example, an owner
or operator may use organic concentration test data for the hazardous waste
stream that are validated according to Method 301 in appendix A of 40 CFR part
63, incorporated by reference in s.
NR 660.11, as the basis for knowledge of the
waste.
3. If chemical
constituent-specific concentration test data are used as the basis for
knowledge, the test data may be adjusted to the corresponding average VO
concentration value which would have been obtained had the waste samples been
analyzed using Method 25D in appendix A of 40 CFR part 60, incorporated by
reference in s.
NR 660.11. To adjust these data, multiply the measured
concentration for each individual chemical constituent contained in the waste
by the appropriate constituent-specific adjustment factor (f
m25D).
4. In
the event that the department and the owner or operator disagree on a
determination of the average VO concentration for a hazardous waste stream
using knowledge, the department may use the results from a determination of
average VO concentration using direct measurement as specified in par. (c) to
establish compliance with the applicable requirements of this subchapter. The
department may perform or request that the owner or operator perform this
determination using direct measurement. The owner or operator may choose one or
more appropriate methods to analyze each collected sample according to par. (c)
3.
(2) PROCEDURES FOR TREATED HAZARDOUS WASTE.
(a) An
owner or operator shall perform the applicable waste determination for each
treated hazardous waste placed in a waste management unit exempted under s.
NR 665.1083(3) (b)
1. to 6. from using air emission controls
according to standards in ss.
NR 665.1085 to 665.1088, as applicable to the waste management unit. Make the determinations
according to all of the following:
1. Make an
initial determination of the average VO concentration of the waste stream
before the first time any portion of the material in the treated waste stream
is placed in a waste management unit exempted under s.
NR 665.1083(3) (b), (c) or
(d) from using air emission controls, and
thereafter update the information used for the waste determination at least
once every 12 months following the date of the initial waste
determination.
2. Perform a new
waste determination whenever changes to the process generating or treating the
waste stream are reasonably likely to cause the average VO concentration of the
hazardous waste to increase to a level such that the applicable treatment
conditions specified in s.
NR 665.1083(3) (b), (c) or
(d) are not achieved.
(b) The owner or operator shall designate and
record the specific provision in s.
NR 665.1083(3)
(b) under which the owner or operator is
performing the waste determination. Perform the waste determination for the
treated hazardous waste using the applicable procedures in pars. (c) to
(i).
(c) Procedure to determine the
average VO concentration of a hazardous waste at the point of waste treatment:
1. `Identification.' Identify and record the
point of waste treatment for the hazardous waste.
2. `Sampling.' Collect samples of the
hazardous waste stream at the point of waste treatment in a manner that
minimizes volatilization of organics contained in the waste and in the
subsequent sample and collects and maintains an adequately representative
sample for analysis by the selected method.
a.
Designate and record the averaging period to be used for determining the
average VO concentration for the hazardous waste stream on a mass-weighted
average basis. The averaging period can represent any time interval that the
owner or operator determines is appropriate for the hazardous waste stream but
may not exceed 1 year.
b. Collect
and analyze a sufficient number of samples, but no less than 4, for a hazardous
waste determination. Collect all of the samples for a given waste determination
within a one-hour period. The average of the 4 or more sample results
constitutes a waste determination for the waste stream. One or more waste
determinations may be required to represent the complete range of waste
compositions and quantities that occur during the entire averaging period due
to normal variations in the operating conditions for the process generating or
treating the hazardous waste stream. Examples of the normal variations are
seasonal variations in waste quantity or fluctuations in ambient
temperature.
c. Collect and handle
all samples according to written procedures prepared by the owner or operator
and documented in a site sampling plan. The plan shall describe the procedure
for collecting representative samples of the hazardous waste stream which
minimizes loss of organics throughout the sample collection and handling
process and maintains sample integrity. Maintain a copy of the written sampling
plan on-site in the facility operating records. An example of acceptable sample
collection and handling procedures for a total volatile organic constituent
concentration may be found in Method 25D in Appendix A of 40 CFR part 60, both
incorporated by reference in s.
NR 660.11.
d.
Prepare and record sufficient information, as specified in the site sampling
plan required under subd. 2. c., to document the waste quantity represented by
the samples and, as applicable, the operating conditions for the process
treating the hazardous waste represented by the samples.
3. `Analysis.' Prepare and analyze each
collected sample according to Method 25D in Appendix A of 40 CFR part 60 for
the total concentration of volatile organic constituents, or using one or more
methods when the individual organic compound concentrations are identified and
summed and the summed waste concentration accounts for and reflects all organic
compounds in the waste with Henry's law constant values of at least 0.1
mole-fraction-in-the-gas-phase/mole-fraction-in-the-liquid-phase (0.1 Y/X)
[which can also be expressed as 1.8 x 10-6 atmospheres/gram-mole/m3] at
25°C. At the owner or operator's discretion, the owner or operator may
adjust test data obtained by any appropriate method to discount any
contribution to the total volatile organic concentration that is a result of
including a Henry's law constant value of less than 0.1 Y/X at 25°C. To
adjust these data, the measured concentration of each individual chemical
constituent contained in the waste is multiplied by the appropriate
constituent-specific adjustment factor (fm25D). If the owner or operator elects
to adjust test data, the adjustment shall be made to all individual chemical
constituents with a Henry's law constant value greater than or equal to 0.1 Y/X
at 25°C contained in the waste. Constituent specific adjustment factors
(fm25D) can be obtained by contacting the Waste and Chemical Processes Group,
Office of Air Quality Planning and Standards, Research Triangle Park, NC 27711.
Other test methods may be used if they meet the requirements in subd. 3. a. or
b. and provided the requirement to reflect all organic compounds in the waste
with Henry's law constant values greater than or equal to 0.1 Y/X [which can
also be expressed as 1.8 x 10-6 atmospheres/gram-mole/m3] at 25°C, is met.
a. Any EPA standard method that has been
validated according to "Alternative Validation Procedure for EPA Waste and
Wastewater Methods," Appendix D of 40 CFR part 63.
b. Any other analysis method that has been
validated according to the procedures specified in Section 5.1 or Section 5.3,
and the corresponding calculations in Section 6.1 or Section 6.3, of Method 301
in Appendix A of 40 CFR part 63. The data are acceptable if they meet the
criteria specified in Section 6.1.5 or Section 6.3.3 of Method 301. If
correction is required under section 6.3.3 of Method 301, the data are
acceptable if the correction factor is within the range 0.7 to 1.30. Other
sections of Method 301 are not required.
4. 'Calculations.' Calculate the average VO
concentration (
-C) on a mass-weighted basis using
the results for all waste determinations conducted according to subds. 2. and
3. and the following equation:
where:
-C = Average VO concentration of the hazardous waste at the point of waste treatment on a mass-weighted basis, ppmw
i = Individual waste determination "i" of the hazardous waste
n = Total number of waste determinations of the hazardous waste conducted for the averaging period (not to exceed 1 year)
Qi = Mass quantity of hazardous waste stream represented by C i, kg/hr
QT = Total mass quantity of hazardous waste during the averaging period, kg/hr
Ci = Measured VO concentration of waste determination " i" determined according to subd. 3. (i.e. the average of the 4 or more samples specified in subd. 2. b.), ppmw
5. `Compliance determination.' Provided that
the test method is appropriate for the waste as required under subd. 3.,
determine compliance based on the test method used by the owner or operator
recorded pursuant to s.
NR 665.1090(6)
(a).
(d) Procedure to determine the exit
concentration limit (C t) for a treated hazardous waste:
1. Identify the point of waste origination
for each hazardous waste treated by the process at the same time.
2. If a single hazardous waste stream is
identified in subd. 1., the exit concentration limit (C
t) shall be 500 ppmw.
3. If more than one hazardous waste stream is
identified in subd. 1., determine the average VO concentration of each
hazardous waste stream at the point of waste origination according to sub. (1).
Calculate the exit concentration limit (C t) using the
results determined for each individual hazardous waste stream and the following
equation:
where:
Ct = Exit concentration limit for treated hazardous waste, ppmw
x = Individual hazardous waste stream "x" that has an average VO concentration less than 500 ppmw at the point of waste origination determined according to sub. (1)
y = Individual hazardous waste stream "y" that has an average VO concentration equal to or greater than 500 ppmw at the point of waste origination determined according to sub. (1)
m = Total number of "x" hazardous waste streams treated by process
n = Total number of "y" hazardous waste streams treated by process
Qx = Annual mass quantity of hazardous waste stream " x", kg/yr
Qy = Annual mass quantity of hazardous waste stream " y", kg/yr
-Cx = Average VO concentration of hazardous waste stream "x" at the point of waste origination determined according to sub. (1), ppmw
(e) Procedure to determine the organic
reduction efficiency (R) for a treated hazardous waste:
1. Determine the organic reduction efficiency
(R) for a treatment process based on results for a minimum of 3 consecutive
runs.
2. Identify all hazardous
waste streams entering the treatment process and all hazardous waste streams
exiting the treatment process. Prepare a sampling plan for measuring these
streams that accurately reflects the retention time of the hazardous waste in
the process.
3. For each run,
determine information for each hazardous waste stream identified in subd. 2.
using all of the following procedures:
a.
Determine the mass quantity of each hazardous waste stream entering the process
(Q b) and the mass quantity of each hazardous waste stream exiting the process
(Q a).
b. Determine the average VO
concentration at the point of waste origination of each hazardous waste stream
entering the process (
-C b) during
the run according to sub. (1) (c). Determine the average VO concentration at
the point of waste treatment of each waste stream exiting the process (
-C a) during
the run according to par. (c).
4. Calculate the waste volatile organic mass
flow entering the process (Eb) and the waste volatile organic mass flow exiting
the process (Ea) using the results determined according to subd. 3. and the
following equations:
where:
Ea = Waste volatile organic mass flow exiting process, kg/hr
Eb = Waste volatile organic mass flow entering process, kg/hr
m = Total number of runs (at least 3)
j = Individual run "j"
Qb = Mass quantity of hazardous waste entering process during run "j", kg/hr
Qa = Average mass quantity of hazardous waste exiting process during run "j", kg/hr
-C a = Average VO concentration of hazardous waste exiting process during run "j" determined according to par. (c), ppmw
-C b = Average VO concentration of hazardous waste entering process during run "j" determined according to sub. (1) (c), ppmw
5. Calculate the organic reduction efficiency
of the process using the results determined according to subd. 4. and the
following equation:
where:
R = Organic reduction efficiency, percent
Eb = Waste volatile organic mass flow entering process determined according to subd. 4., kg/hr
Ea = Waste volatile organic mass flow exiting process determined according to subd. 4., kg/hr
(f) Procedure to determine the
organic biodegradation efficiency (Rbio) for a treated
hazardous waste:
1. Determine the fraction of
organics biodegraded (Fbio) using the procedure
specified in appendix C of 40 CFR part 63, incorporated by reference in s.
NR 660.11.
2.
Calculate the Rbio using the following equation:
where:
Rbio = Organic biodegradation efficiency, percent
Fbio = Fraction of organic biodegraded determined according to subd. 1.
(g) Procedure to determine the required
organic mass removal rate (RMR) for a treated hazardous waste:
1. Identify all of the hazardous waste
streams entering the treatment process.
2. Determine the average VO concentration of
each hazardous waste stream at the point of waste origination according to sub.
(1).
3. For each individual
hazardous waste stream that has an average VO concentration equal to or greater
than 500 ppmw at the point of waste origination, determine the average
volumetric flow rate and the density of the hazardous waste stream at the point
of waste origination.
4. Calculate
the RMR using the average VO concentration, average volumetric flow rate and
density determined for each individual hazardous waste stream, and the
following equation:
where:
RMR = Required organic mass removal rate, kg/hr
y = Individual hazardous waste stream "y" that has an average VO concentration equal to or greater than 500 ppmw at the point of waste origination determined according to sub. (1)
n = Total number of "y" hazardous waste streams treated by process
Vy = Average volumetric flow rate of hazardous waste stream "y" at the point of waste origination, m3/hr
ky= Density of hazardous waste stream "y", kg/m3
-C y = Average VO concentration of hazardous waste stream "y" at the point of waste origination determined according to sub. (1), ppmw
(h) Procedure to determine the actual organic
mass removal rate (MR) for a treated hazardous waste:
1. Determine the MR based on results for a
minimum of 3 consecutive runs. The sampling time for each run shall be one
hour.
2. Determine the waste
volatile organic mass flow entering the process (Eb) and
the waste volatile organic mass flow exiting the process
(Ea) according to par. (e) 4.
3. Calculate the MR using the mass flow rate
determined according to subd. 2. and the following equation:
where:
MR = Actual organic mass removal rate, kg/hr
Eb = Waste volatile organic mass flow entering process determined according to par. (e) 4., kg/hr
Ea = Waste volatile organic mass flow exiting process determined according to par. (e) 4., kg/hr
(i)
Procedure to determine the actual organic mass biodegradation rate
(MRbio) for a treated hazardous waste:
1. Determine the MRbio
based on results for a minimum of 3 consecutive runs. The sampling time for
each run shall be one hour.
2.
Determine the waste organic mass flow entering the process (E b) according to
par. (e) 4.
3. Determine the
fraction of organic biodegraded (Fbio) using the
procedure in appendix C of 40 CFR part 63, incorporated by reference in s.
NR 660.11.
4.
Calculate the MRbio using the mass flow rates and
fraction of organic biodegraded determined according to subds. 2. and 3.,
respectively, and the following equation:
where:
MRbio = Actual organic mass biodegradation rate, kg/hr
Eb = Waste organic mass flow entering process determined according to par. (e) 4., kg/hr
Fbio = Fraction of organic biodegraded determined according to subd. 3.
(3) PROCEDURE TO DETERMINE THE MAXIMUM ORGANIC VAPOR PRESSURE OF A HAZARDOUS WASTE IN A TANK.
(a) An owner or operator shall determine the
maximum organic vapor pressure for each hazardous waste placed in a tank using
Tank Level 1 controls according to the standards in s.
NR 665.1085(3).
(b) An owner or operator shall use either
direct measurement as specified in par. (c) or knowledge of the waste as
specified in par. (d) to determine the maximum organic vapor pressure which is
representative of the hazardous waste composition stored or treated in the
tank.
(c) If the owner or operator
uses direct measurement to determine the maximum organic vapor pressure of a
hazardous waste, the owner or operator shall do all of the following:
1. `Sampling.' Collect a sufficient number of
samples to be representative of the waste contained in the tank. Collect and
handle all samples according to written procedures prepared by the owner or
operator and documented in a site sampling plan. The plan shall describe the
procedure for collecting representative samples of the hazardous waste which
minimizes loss of organics throughout the sample collection and handling
process and maintains sample integrity. Maintain a copy of the written sampling
plan on-site in the facility operating records. An example of acceptable sample
collection and handling procedures may be found in Method 25D in Appendix A of
40 CFR part 60, both incorporated by reference in s.
NR 660.11.
2.
`Analysis.' Any appropriate one of the following methods may be used to analyze
the samples and compute the maximum organic vapor pressure of the hazardous
waste:
a. Method 25E in appendix A of 40 CFR
part 60, incorporated by reference in s.
NR 660.11.
b.
Methods described in American Petroleum Institute Publication 2517, Third
Edition, February 1989, "Evaporative Loss from External Floating-Roof Tanks",
incorporated by reference in s.
NR 660.11.
c.
Methods obtained from standard reference texts.
d. ASTM Method D2879-92, incorporated by
reference in s.
NR 660.11.
e.
Any other method approved by the department.
(d) If the owner or operator uses knowledge
to determine the maximum organic vapor pressure of the hazardous waste, the
owner or operator shall prepare and record documentation that presents the
information used as the basis for the owner's or operator's knowledge that the
maximum organic vapor pressure of the hazardous waste is less than the maximum
vapor pressure limit listed in s.
NR 665.1085(2) (a)
1. for the applicable tank design capacity
category. An example of information that may be used is documentation that the
hazardous waste is generated by a process for which at other locations it
previously has been determined by direct measurement that the waste maximum
organic vapor pressure is less than the maximum vapor pressure limit for the
appropriate tank design capacity category.
(4) PROCEDURE FOR DETERMINING NO DETECTABLE ORGANIC EMISSIONS FOR THE PURPOSE OF COMPLYING WITH THIS SUBCHAPTER.
(a) Conduct the test according to Method 21
in appendix A of 40 CFR part 60, incorporated by reference in s.
NR 660.11. Check each potential leak interface (i.e., a
location where organic vapor leakage could occur) on the cover and associated
closure devices. Potential leak interfaces that are associated with covers and
closure devices include, but are not limited to, the interface of the cover and
its foundation mounting, the periphery of any opening on the cover and its
associated closure device and the sealing seat interface on a spring-loaded
pressure relief valve.
(b) Perform
the test when the unit contains a hazardous waste having an organic
concentration representative of the range of concentrations for the hazardous
waste expected to be managed in the unit. During the test, secure the cover and
closure devices in the closed position.
(c) The detection instrument shall meet the
performance criteria of Method 21 in appendix A of 40 CFR part 60, incorporated
by reference in s.
NR 660.11, except the instrument response factor criteria
in section 3.1.2(a) shall be for the average composition of the organic
constituents in the hazardous waste placed in the waste management unit, not
for each individual organic constituent.
(d) Calibrate the detection instrument before
use on each day of its use by the procedures in Method 21 in appendix A of 40
CFR part 60, incorporated by reference in s.
NR 660.11.
(e) Calibration gases shall be all of the
following:
1. Zero air (less than 10 ppmv
hydrocarbon in air).
2. A mixture
of methane or n-hexane and air at a concentration of approximately, but less
than, 10,000 ppmv methane or n-hexane.
(f) Determine the background level according
to Method 21 in appendix A of 40 CFR part 60, incorporated by reference in s.
NR 660.11.
(g) Check each potential leak interface by
traversing the instrument probe around the potential leak interface as close to
the interface as possible, as described in Method 21 in appendix A of 40 CFR
part 60, incorporated by reference in s.
NR 660.11. In the case when the configuration of the
cover or closure device prevents a complete traverse of the interface, sample
all accessible portions of the interface. In the case when the configuration of
the closure device prevents any sampling at the interface and the device is
equipped with an enclosed extension or horn (e.g., some pressure relief
devices), place the instrument probe inlet at approximately the center of the
exhaust area to the atmosphere.
(h)
Compare the arithmetic difference between the maximum organic concentration
indicated by the instrument and the background level with the value of 500 ppmv
except when monitoring a seal around a rotating shaft that passes through a
cover opening, in which case the comparison shall be as specified in par. (i).
If the difference is less than 500 ppmv, then the potential leak interface is
determined to operate with no detectable organic emissions.
(i) For the seals around a rotating shaft
that passes through a cover opening, compare the arithmetic difference between
the maximum organic concentration indicated by the instrument and the
background level with the value of 10,000 ppmw. If the difference is less than
10,000 ppmw, then the potential leak interface is determined to operate with no
detectable organic emissions.
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