[Code of Federal Regulations]
[Title 40, Volume 9, Part 63 (Secs. 63.1200_End]
[Revised as of July 1, 1999]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR63.1282]
[Page 122-128]
TITLE 40--PROTECTION OF ENVIRONMENT
CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY
PART 63--NATIONAL EMISSION STANDARDS FOR HAZARDOUS AIR POLLUTANTS FOR SOURCE CATEGORIES--Table of Contents
Subpart HHH--National Emission Standards for Hazardous Air Pollutants
From Natural Gas Transmission and Storage Facilities
Sec. 63.1282 Test methods, compliance procedures, and compliance demonstrations.
(a) Determination of glycol dehydration unit flowrate or benzene
emissions. The procedures of this paragraph shall be used by an owner or
operator to determine glycol dehydration unit natural gas flowrate or
benzene emissions to meet the criteria for the exemption from control
requirements under Sec. 63.1274(d).
(1) The determination of actual flowrate of natural gas to a glycol
dehydration unit shall be made using the
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procedures of either paragraph (a)(1)(i) or (a)(1)(ii) of this section.
(i) The owner or operator shall install and operate a monitoring
instrument that directly measures natural gas flowrate to the glycol
dehydration unit with an accuracy of plus or minus 2 percent or better.
The owner or operator shall convert the annual natural gas flowrate to a
daily average by dividing the annual flowrate by the number of days per
year the glycol dehydration unit processed natural gas.
(ii) The owner or operator shall document, to the Administrator's
satisfaction, that the actual annual average natural gas flowrate to the
glycol dehydration unit is less than 85 thousand standard cubic meters
per day.
(2) The determination of actual average benzene emissions from a
glycol dehydration unit shall be made using the procedures of either
paragraph (a)(2)(i) or (a)(2)(ii) of this section. Emissions shall be
determined either uncontrolled or with federally enforceable controls in
place.
(i) The owner or operator shall determine actual average benzene
emissions using the model GRI-GLYCalcTM, Version 3.0 or
higher, and the procedures presented in the associated GRI-
GLYCalcTM Technical Reference Manual. Inputs to the model
shall be representative of actual operating conditions of the glycol
dehydration unit and may be determined using the procedures documented
in the Gas Research Institute (GRI) report entitled ``Atmospheric Rich/
Lean Method for Determining Glycol Dehydrator Emissions'' (GRI-95/
0368.1); or
(ii) The owner or operator shall determine an average mass rate of
benzene emissions in kilograms per hour through direct measurement by
performing three runs of Method 18 in 40 CFR part 60, appendix A (or an
equivalent method), and averaging the results of the three runs. Annual
emissions in kilograms per year shall be determined by multiplying the
mass rate by the number of hours the unit is operated per year. This
result shall be converted to megagrams per year.
(b) No detectable emissions test procedure. (1) The procedure shall
be conducted in accordance with Method 21, 40 CFR part 60, appendix A.
(2) The detection instrument shall meet the performance criteria of
Method 21, 40 CFR part 60, appendix A, except the instrument response
factor criteria in section 3.1.2(a) of Method 21 shall be for the
average composition of the fluid, and not for each individual organic
compound in the stream.
(3) The detection instrument shall be calibrated before use on each
day of its use by the procedures specified in Method 21, 40 CFR part 60,
appendix A.
(4) Calibration gases shall be as follows:
(i) Zero air (less than 10 parts per million by volume hydrocarbon
in air); and
(ii) A mixture of methane in air at a methane concentration of less
than 10,000 parts per million by volume.
(5) An owner or operator may choose to adjust or not adjust the
detection instrument readings to account for the background organic
concentration level. If an owner or operator chooses to adjust the
instrument readings for the background level, the background level value
must be determined according to the procedures in Method 21 of 40 CFR
part 60, appendix A.
(6)(i) Except as provided in paragraph (b)(6)(i) of this section,
the detection instrument shall meet the performance criteria of Method
21 of 40 CFR part 60, appendix A, except the instrument response factor
criteria in section 3.1.2(a) of Method 21 shall be for the average
composition of the process fluid not each individual volatile organic
compound in the stream. For process streams that contain nitrogen, air,
or other inerts which are not organic hazardous air pollutants or
volatile organic compounds, the average stream response factor shall be
calculated on an inert-free basis.
(ii) If no instrument is available at the facility that will meet
the performance criteria specified in paragraph (b)(6)(i) of this
section, the instrument readings may be adjusted by multiplying by the
average response factor of the process fluid, calculated on an inert-
free basis as described in paragraph (b)(6)(i) of this section.
(7) An owner or operator must determine if a potential leak
interface operates with no detectable emissions using the applicable
procedure specified in
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paragraph (b)(7)(i) or (b)(7)(ii) of this section.
(i) If an owner or operator chooses not to adjust the detection
instrument readings for the background organic concentration level, then
the maximum organic concentration value measured by the detection
instrument is compared directly to the applicable value for the
potential leak interface as specified in paragraph (b)(8) of this
section.
(ii) If an owner or operator chooses to adjust the detection
instrument readings for the background organic concentration level, the
value of the arithmetic difference between the maximum organic
concentration value measured by the instrument and the background
organic concentration value as determined in paragraph (b)(5) of this
section is compared with the applicable value for the potential leak
interface as specified in paragraph (b)(8) of this section.
(8) A potential leak interface is determined to operate with no
detectable organic emissions if the organic concentration value
determined in paragraph (b)(7) is less than 500 parts per million by
volume.
(c) [Reserved]
(d) Control device performance test procedures. This paragraph
applies to the performance testing of control devices. The owners or
operators shall demonstrate that a control device achieves the
performance requirements of Sec. 63.1281(d)(1) or (e)(3)(ii) using
either a performance test as specified in paragraph (d)(3) of this
section or a design analysis as specified in paragraph (d)(4) of this
section. The owner or operator may elect to use the alternative
procedures in paragraph (d)(5) of this section for performance testing
of a condenser used to control emissions from a glycol dehydration unit
process vent.
(1) The following control devices are exempt from the requirements
to conduct performance tests and design analyses under this section:
(i) A flare that is designed and operated in accordance with
Sec. 63.11(b);
(ii) A boiler or process heater with a design heat input capacity of
44 megawatts or greater;
(iii) A boiler or process heater into which the vent stream is
introduced with the primary fuel or is used as the primary fuel;
(iv) A boiler or process heater burning hazardous waste for which
the owner or operator has either been issued a final permit under 40 CFR
part 270 and complies with the requirements of 40 CFR part 266, subpart
H, or has certified compliance with the interim status requirements of
40 CFR part 266, subpart H;
(v) A hazardous waste incinerator for which the owner or operator
has been issued a final permit under 40 CFR part 270 and complies with
the requirements of 40 CFR part 264, subpart O, or has certified
compliance with the interim status requirements of 40 CFR part 265,
subpart O.
(vi) A control device for which a performance test was conducted for
determining compliance with a regulation promulgated by the EPA, and the
test was conducted using the same methods specified in this section, and
either no process changes have been made since the test, or the owner or
operator can demonstrate that the results of the performance test, with
or without adjustments, reliably demonstrate compliance despite process
changes.
(2) An owner or operator shall design and operate each flare in
accordance with the requirements specified in Sec. 63.11(b) and in
paragraphs (d)(2)(i) and (d)(2)(ii) of this section.
(i) The compliance determination shall be conducted using Method 22
of 40 CFR part 60, appendix A, to determine visible emissions.
(ii) An owner or operator is not required to conduct a performance
test to determine percent emission reduction or outlet organic HAP or
TOC concentration when a flare is used.
(3) For a performance test conducted to demonstrate that a control
device meets the requirements of Sec. 63.1281(d)(1) or (e)(3)(ii), the
owner or operator shall use the test methods and procedures specified in
paragraphs (d)(3)(i) through (d)(3)(iv) of this section. The performance
test shall be conducted according to the schedule specified in
Sec. 63.7(a)(2), and the results of the performance test shall be
submitted in the Notification of Compliance Status Report as required in
Sec. 63.1285(d)(1)(ii).
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(i) Method 1 or 1A, 40 CFR part 60, appendix A, as appropriate,
shall be used for selection of the sampling sites specified in
paragraphs (d)(3)(i)(A) and (B) of this section. Any references to
particulate mentioned in Methods 1 and 1A do not apply to this section.
(A) To determine compliance with the control device percent
reduction requirements specified in Sec. 63.1281(d)(1)(i)(A),(d)(1)(ii),
or (e)(3)(ii), sampling sites shall be located at the inlet of the first
control device and at the outlet of the final control device.
(B) To determine compliance with the enclosed combustion device
total HAP concentration limit specified in Sec. 63.1281(d)(1)(i)(B), the
sampling site shall be located at the outlet of the device.
(ii) The gas volumetric flowrate shall be determined using Method 2,
2A, 2C, or 2D, 40 CFR part 60, appendix A, as appropriate.
(iii) To determine compliance with the control device percent
reduction performance requirement in Sec. 63.1281(d)(1)(i)(A),
63.1281(d)(1)(ii), or 63.1281(e)(3)(ii), the owner or operator shall use
either Method 18, 40 CFR part 60, appendix A, or Method 25A, 40 CFR part
60, appendix A; alternatively, any other method or data that have been
validated according to the applicable procedures in Method 301 of
appendix A of this part may be used. The following procedures shall be
used to calculate the percentage of reduction:
(A) The minimum sampling time for each run shall be 1 hour in which
either an integrated sample or a minimum of four grab samples shall be
taken. If grab sampling is used, then the samples shall be taken at
approximately equal intervals in time, such as 15-minute intervals
during the run.
(B) The mass rate of either TOC (minus methane and ethane) or total
HAP (Ei, Eo) shall be computed.
(1) The following equations shall be used:
[GRAPHIC] [TIFF OMITTED] TR17JN99.008
[GRAPHIC] [TIFF OMITTED] TR17JN99.009
Where:
Cij, Coj = Concentration of sample component j of
the gas stream at the inlet and outlet of the control device,
respectively, dry basis, parts per million by volume.
Ei, Eo = Mass rate of TOC (minus methane and
ethane) or total HAP at the inlet and outlet of the control
device, respectively, dry basis, kilogram per hour.
Mij, Moj = Molecular weight of sample component j
of the gas stream at the inlet and outlet of the control
device, respectively, gram/gram-mole.
Qi, Qo = Flowrate of gas stream at the inlet and
outlet of the control device, respectively, dry standard cubic
meter per minute.
K2 = Constant, 2.494x10 -6 (parts per million)
-1 (gram-mole per standard cubic meter) (kilogram/
gram) (minute/hour), where standard temperature is 20 deg.C.
(2) When the TOC mass rate is calculated, all organic compounds
(minus methane and ethane) measured by Method 18, of 40 CFR part 60,
appendix A; or Method 25A, 40 CFR part 60, appendix A, shall be summed
using the equations in paragraph (d)(3)(iii)(B)(1) of this section.
(3) When the total HAP mass rate is calculated, only HAP chemicals
listed in Table 1 of this subpart shall be summed using the equations in
paragraph (d)(3)(iii)(B)(1) of this section.
(C) The percentage of reduction in TOC (minus methane and ethane) or
total HAP shall be calculated as follows:
[GRAPHIC] [TIFF OMITTED] TR17JN99.010
Where:
Rcd = Control efficiency of control device, percent.
Ei = Mass rate of TOC (minus methane and ethane) or total HAP
at the inlet to the control device as calculated under
paragraph (d)(3)(iii)(B) of this section, kilograms TOC per
hour or kilograms HAP per hour.
Eo = Mass rate of TOC (minus methane and ethane) or total HAP
at the outlet of the control device, as calculated under
paragraph (d)(3)(iii)(B) of this section, kilograms TOC per
hour or kilograms HAP per hour.
[[Page 126]]
(D) If the vent stream entering a boiler or process heater with a
design capacity less than 44 megawatts is introduced with the combustion
air or as a secondary fuel, the weight-percentage of reduction of total
HAP or TOC (minus methane and ethane) across the device shall be
determined by comparing the TOC (minus methane and ethane) or total HAP
in all combusted vent streams and primary and secondary fuels with the
TOC (minus methane and ethane) or total HAP exiting the device,
respectively.
(iv) To determine compliance with the enclosed combustion device
total HAP concentration limit specified in Sec. 63.1281(d)(1)(i)(B), the
owner or operator shall use either Method 18, 40 CFR part 60, appendix
A; or Method 25A, 40 CFR part 60, appendix A, to measure either TOC
(minus methane and ethane) or total HAP. Alternatively, any other method
or data that have been validated according to Method 301 of appendix A
of this part, may be used. The following procedures shall be used to
calculate parts per million by volume concentration, corrected to 3
percent oxygen:
(A) The minimum sampling time for each run shall be 1 hour in which
either an integrated sample or a minimum of four grab samples shall be
taken. If grab sampling is used, then the samples shall be taken at
approximately equal intervals in time, such as 15-minute intervals
during the run.
(B) The TOC concentration or total HAP concentration shall be
calculated according to paragraph (d)(3)(iv)(B)(1) or (d)(3)(iv)(B)(2)
of this section.
(1) The TOC concentration (CTOC) is the sum of the
concentrations of the individual components and shall be computed for
each run using the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.011
Where:
CTOC = Concentration of total organic compounds minus methane
and ethane, dry basis, parts per million by volume.
Cji = Concentration of sample components j of sample i, dry
basis, parts per million by volume.
n = Number of components in the sample.
x = Number of samples in the sample run.
(2) The total HAP concentration (CHAP) shall be computed
according to the equation in paragraph (d)(3)(iv)(B)(1) of this section,
except that only HAP chemicals listed in Table 1 of this subpart shall
be summed.
(C) The TOC concentration or total HAP concentration shall be
corrected to 3 percent oxygen as follows:
(1) The emission rate correction factor for excess air, integrated
sampling and analysis procedures of Method 3B, 40 CFR part 60, appendix
A, shall be used to determine the oxygen concentration
(%O2d). The samples shall be taken during the same time that
the samples are taken for determining TOC concentration or total HAP
concentration.
(2) The concentration corrected to 3 percent oxygen (Cc)
shall be computed using the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.012
Where:
Cc = TOC concentration of total HAP concentration corrected
to 3 percent oxygen, dry basis, parts per million by volume.
Cm = TOC concentration or total HAP concentration, dry basis,
parts per million by volume.
%O2d = Concentration of oxygen, dry basis, percent by volume.
(4) For a design analysis conducted to meet the requirements of
Sec. 63.1281(d)(1) or (e)(3)(ii), the owner or operator shall meet the
requirements specified in paragraphs (d)(4)(i) and (d)(4)(ii) of this
section. Documentation of the design analysis shall be submitted as a
part of the Notification of Compliance Status Report as required in
Sec. 63.1285(d)(1)(i).
(i) The design analysis shall include analysis of the vent stream
characteristics and control device operating parameters for the
applicable control device as specified in paragraphs (d)(4)(i) (A)
through (F) of this section.
(A) For a thermal vapor incinerator, the design analysis shall
include the vent stream composition, constituent
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concentrations, and flowrate and shall establish the design minimum and
average temperatures in the combustion zone and the combustion zone
residence time.
(B) For a catalytic vapor incinerator, the design analysis shall
include the vent stream composition, constituent concentrations, and
flowrate and shall establish the design minimum and average temperatures
across the catalyst bed inlet and outlet, and the design service life of
the catalyst.
(C) For a boiler or process heater, the design analysis shall
include the vent stream composition, constituent concentrations, and
flowrate; shall establish the design minimum and average flame zone
temperatures and combustion zone residence time; and shall describe the
method and location where the vent stream is introduced into the flame
zone.
(D) For a condenser, the design analysis shall include the vent
stream composition, constituent concentrations, flowrate, relative
humidity, and temperature, and shall establish the design outlet organic
compound concentration level, design average temperature of the
condenser exhaust vent stream, and the design average temperatures of
the coolant fluid at the condenser inlet and outlet. As an alternative
to the design analysis, an owner or operator may elect to use the
procedures specified in paragraph (d)(5) of this section.
(E) For a regenerable carbon adsorption, the design analysis shall
include the vent stream composition, constituent concentrations,
flowrate, relative humidity, and temperature, and shall establish the
design exhaust vent stream organic compound 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.
(F) For a nonregenerable carbon adsorption system, such as a carbon
canister, the design analysis shall include the vent stream composition,
constituent concentrations, flowrate, relative humidity, and
temperature, and shall establish the design exhaust vent stream organic
compound concentration 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 will incorporate dual carbon canisters in case of emission
breakthrough occurring in one canister.
(ii) If the owner or operator and the Administrator do not agree on
a demonstration of control device performance using a design analysis,
then the disagreement shall be resolved using the results of a
performance test performed by the owner or operator in accordance with
the requirements of paragraph (d)(3) of this section. The Administrator
may choose to have an authorized representative observe the performance
test.
(5) As an alternative to the procedures in paragraphs (d)(3) and
(d)(4)(i)(D) of this section, an owner or operator may elect to use the
procedures documented in the GRI report entitled, ``Atmospheric Rich/
Lean Method for Determining Glycol Dehydrator Emissions,'' (GRI-95/
0368.1) as inputs for the model GRI-GLYCalcTM, Version 3.0 or
higher, to determine condenser performance.
(e) Compliance demonstration for control devices performance
requirements. This paragraph applies to the demonstration of compliance
with the control device performance requirements specified in
Sec. 63.1281(d)(1) and (e)(3)(ii). Compliance shall be demonstrated
using the requirements in paragraphs (e)(1) through (e)(3) of this
section. As an alternative, an owner or operator that installs a
condenser as the control device to achieve the requirements specified in
Sec. 63.1281(d)(2)(ii) or Sec. 63.1275(c)(2), may demonstrate compliance
according to paragraph (f) of this section. An owner or operator may
switch between compliance with paragraph (e) of this section and
compliance with paragraph (f) of this section only after at least 1 year
of operation in compliance with the selected approach. Notification of
such a change
[[Page 128]]
in the compliance method shall be reported in the next Periodic Report,
as required in Sec. 63.1285(e), following the change.
(1) The owner or operator shall establish a site specific maximum or
minimum monitoring parameter value (as appropriate) according to the
requirements of Sec. 63.1283(d)(5)(i).
(2) The owner or operator shall calculate the daily average of the
applicable monitored parameter in accordance with Sec. 63.1283(d)(4).
(3) Compliance is achieved when the daily average of the monitoring
parameter value calculated under paragraph (e)(2) of this section is
either equal to or greater than the minimum or equal to or less than the
maximum monitoring value established under paragraph (e)(1) of this
section.
(f) Compliance demonstration with percent reduction performance
requirements--condensers. This paragraph applies to the demonstration of
compliance with the performance requirements specified in
Sec. 63.1281(d)(1)(ii) for condensers. Compliance shall be demonstrated
using the procedures in paragraphs (f)(1) through (f)(3) of this
section.
(1) The owner or operator shall establish a site-specific condenser
performance curve according to the procedures specified in
Sec. 63.1283(d)(5)(ii).
(2) Compliance with the percent reduction requirement in
Sec. 63.1281(d)(1)(ii) or Sec. 63.1275(c)(2) shall be demonstrated by
the procedures in paragraphs (f)(2)(i) through (f)(2)(iii) of this
section.
(i) The owner or operator must calculate the daily average condenser
outlet temperature in accordance with Sec. 63.1283(d)(4).
(ii) The owner or operator shall determine the condenser efficiency
for the current operating day using the daily average condenser outlet
temperature calculated in paragraph (f)(2)(i) of this section and the
condenser performance curve established in paragraph (f)(1) of this
section.
(iii) Except as provided in paragraphs (f)(2)(iii) (A), (B), and (D)
of this section, at the end of each operating day the owner or operator
shall calculate the 30-day average HAP emission reduction from the
condenser efficiencies determined in paragraph (f)(2)(ii) of this
section for the preceding 30 operating days. If the owner or operator
uses a combination of process modifications and a condenser in
accordance with the requirements of Sec. 63.1275(c)(2), the 30-day
average HAP emission reduction shall be calculated using the emission
reduction achieved through process modifications and the condenser
efficiency determined in paragraph (f)(2)(ii) of this section, both for
the preceding 30 operating days.
(A) After the compliance date specified in Sec. 63.1270(f), an owner
or operator of a facility that stores natural gas that has less than 30
days of data for determining the average HAP emission reduction, shall
calculate the cumulative average at the end of the withdrawal season,
each season, until 30 days of condenser operating data are accumulated.
For a facility that does not store natural gas, the owner or operator
that has less than 30 days of data for determining average HAP emission
reduction, shall calculate the cumulative average at the end of the
calendar year, each year, until 30 days of condenser operating data are
accumulated.
(B) After the compliance date specified in Sec. 63.1270(f), an owner
or operator that has less than 30 days of data for determining the
average HAP emission reduction, compliance is achieved if the average
HAP emission reduction calculated in paragraph (f)(2)(iii)(A) of this
section, is equal to or greater than 95.0 percent.
(C) For the purposes of this subpart, a withdrawal season begins the
first time gas is withdrawn from the storage field after July 1 of the
calendar year and ends on June 30 of the next calendar year.
(D) Glycol dehydration units that are operated continuously have the
option of complying with the requirements specified in 40 CFR 63.772(g).
(3) Compliance is achieved with the emission limitation specified in
Sec. 63.1281(d)(1)(ii) or Sec. 63.1275(c)(2) if the average HAP emission
reduction calculated in paragraph (f)(2)(iii) of this section is equal
to or greater than 95.0 percent.
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