(a) Compliance with the requirements in this division
must be determined by applying the following test methods, as appropriate.
(1) United States Environmental Protection Agency (EPA)
Method 1 or 1A in 40 Code of Federal Regulations (CFR) Part 60, Appendix
A-1 must be used to select sampling sites. The references to particulate
sampling do not apply for purposes of using these methods in this
division.
(2) EPA Method 2, 2A, 2C, or 2D in 40 CFR Part 60,
Appendix A-2 must be used to determine the gas volumetric flow rate.
(3) EPA Method 3A or 3B, in 40 CFR Part 60, Appendix
A-2, ASTM D6522-00 (Reapproved 2005), or American National Standards
Institute/American Society of Mechanical Engineers Performance Test
Codes (ANSI/ASME PTC) 19.10-1981, Part 10 (manual portion only) must
be used to determine the oxygen concentration.
(4) EPA Method 4 in 40 CFR Part 60, Appendix A-3 must
be used for determining the stack gas moisture content.
(5) EPA Method 18 in 40 CFR Part 60, Appendix A-6 must
be used for determining the concentrations of methane and ethane.
(6) EPA Method 21 in 40 CFR Part 60, Appendix A-7 must
be used for determining volatile organic compound (VOC) leaks.
(7) EPA Method 22 in 40 CFR Part 60, Appendix A-7,
Section 11 must be used for determining visible emissions.
(8) EPA Method 25A in 40 CFR Part 60, Appendix A-7
must be used for determining total gaseous organic concentrations
using flame ionization.
(9) Minor modifications to either test methods or monitoring
methods may be approved by the executive director. Test methods other
than those specified in paragraphs (1) - (8) of this subsection may
be used if approved by the executive director and validated by EPA
Method 301 (40 CFR Part 63, Appendix A). For the purposes of this
paragraph, substitute "executive director" each place that EPA Method
301 references "administrator."
(b) The following procedures must be used to demonstrate
compliance with the control requirements in this division for a control
device, other than a flare and routing to a process, and as appropriate.
(1) The owner or operator of a combustion control device
tested to comply with the 275 parts per million by volume (ppmv) outlet
VOC limit shall establish a correlation between firebox or combustion
chamber temperature and the VOC performance level. The owner or operator
shall also establish minimum and maximum temperatures or other operating
parameter that will be continuously monitored to demonstrate compliance
with the control device requirements in this division.
(2) The following testing requirements apply to control
devices used to demonstrate compliance with the control requirements
of this division. Each performance test must consist of a minimum
of three test runs, and each run must be at least one hour long.
(A) The owner or operator shall conduct an initial
control device performance test by the compliance date in §115.183
of this title (relating to Compliance Schedules) using the test methods
in this subsection.
(B) The owner or operator shall conduct a periodic
performance test no later than 60 months after the previous performance
test. For any modification of a closed vent system, control device,
or equipment regulated in this division that could reasonably be expected
to decrease the control efficiency of the control device, such device
must be retested within 60 days of the modification.
(3) In lieu of periodic performance testing required
in paragraph (2) of this subsection, the owner or operator may complete
a design analysis to satisfy compliance with the control requirements
of this division. The owner or operator shall determine through monitoring
the parameters sufficient to determine proper functioning of the control
device is met, as required in the monitoring requirements in §115.178(f)
of this title (relating to Monitoring and Inspection Requirements).
(A) For a vapor recovery unit or condenser, the design
analysis criteria evaluated must include an analysis of the vent stream
composition, speciated VOC concentrations, flowrate, relative humidity,
and temperature. In addition, the design analysis must establish the
design outlet VOC concentration level, design average temperature
of the vapor recovery unit or condenser exhaust vent stream, and the
design inlet and outlet average temperatures of the coolant fluid.
(B) For a regenerable carbon adsorption system, a design
analysis must include the design exhaust vent stream VOC concentration
level, adsorption cycle time, number and capacity of carbon beds,
type and working capacity of activated carbon used for the carbon
beds, design total regeneration stream flow over the period of each
complete carbon bed regeneration cycle, design carbon bed temperature
after regeneration, design carbon bed regeneration time, and design
service life of the carbon.
(C) For a non-regenerable carbon adsorption system
(such as a carbon canister), the design analysis must include the
vent stream composition, VOC constituent concentrations, flowrate,
relative humidity, and temperature, and must establish the design
exhaust vent stream VOC level, capacity of the carbon bed, type and
working capacity of activated carbon used for the carbon bed, and
design carbon replacement interval based on the total carbon working
capacity of the control device and source operating schedule. In addition,
these systems must incorporate dual carbon canisters in case of emission
breakthrough occurring in one canister.
(D) For a combustion control device, other than a flare,
the design analysis must identify each existing, or derived, control
device design parameter including waste stream and supplemental fuel
flowrates, mixing characteristics, composition, net heating value,
combustion zone temperature, residence time, excess oxygen and relative
humidity. The analysis must compare these control device design parameters
with actual control device operating data, for a minimum of the prior
two years, to ensure the control device is being operated as designed.
A physical inspection of the combustion device is required as part
of this analysis to assess whether equipment wear is present that
will result a significant reduction in operating efficiency or require
prompt maintenance.
(4) In lieu of performing control device testing required
in paragraph (2) of this subsection, the owner or operator may use
data from a performance test conducted by the manufacturer on the
same control device model that is used to comply with control requirements
in this division. The owner or operator shall comply with the monitoring
requirements in §115.178(f) of this title, and the data in the
manufacturer's report must be sufficient to determine proper functioning
of the control device as required in the monitoring requirements in §115.178(f)
of this title.
(A) The manufacturer's guarantee must demonstrate that
the specific model of control device meets the 95% control efficiency
required in the control requirements of this division.
(B) The control device must be equipped with an inlet
gas flow rate meter. Control devices, other than combustion control
devices, must have a separate outlet gas flow rate meter.
(C) The owner or operator of a control device model
tested under this paragraph shall maintain the test report in accordance
with §115.180 of this title (relating to Recordkeeping Requirements).
The test report must include, but is not limited to, all information
required under 40 CFR §60.5413a(d)(12) (as amended September
15, 2020 (85 FR 57447)) that is applicable to the test conducted.
(c) The owner or operator shall calculate the control
efficiency of a control device using the test results from subsection
(b) of this section and the following procedure.
(1) The owner or operator shall use EPA methods specified
in subsection (a)(1) or (2) of this section to determine the flow
rate of the inlet to outlet to determine the mass rate; EPA Method
25A in 40 CFR Part 60, Appendix A-7; EPA Method 4 in 40 CFR Part 60,
Appendix A-3 (to convert the EPA Method 25A results to a dry basis);
and equations 1 and 2 to calculate percent reduction efficiency to
determine compliance with control device VOC reduction efficiency
limits in this division.
Attached Graphic
(2) The owner or operator shall use EPA Method 25A
in 40 CFR Part 60, Appendix A-7 to determine the exhaust gas concentration
of total organic carbon in ppmv for the purpose of determining compliance
with control device exhaust gas ppmv concentration limits in this
division.
(A) The owner or operator may elect to conduct EPA
Method 18 sampling simultaneously with EPA Method 25A in 40 CFR Part
60, Appendix A-7 sampling to quantify methane and ethane concentrations
and subtract the combined values to derive a total VOC ppmv concentration.
If using this option, the owner or operator shall take either an integrated
sample or a minimum of four grab samples per hour at approximately
equal intervals in time, such as 15-minute intervals during the run.
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