[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: 40CFR63.1270]
[Page 113-115]
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. 63.1270 Applicability and designation of affected source.
Source: 64 FR 32648, June 17, 1999, unless otherwise noted.
(a) This subpart applies to owners and operators of natural gas
transmission and storage facilities that transport or store natural gas
prior to entering the pipeline to a local distribution company or to a
final end user (if there is no local distribution company), and that are
major sources of hazardous air pollutants (HAP) emissions as determined
using the maximum natural gas throughput calculated in either paragraph
(a)(1) or (a)(2) of this section and paragraphs (a)(3) and (a)(4) of
this section. A compressor station that transports natural gas prior to
the point of custody transfer, or to a natural gas processing plant (if
present) is considered a part of the oil and natural gas production
source category. A facility that is determined to be an area source,
based on emission estimates using the maximum natural gas throughput
calculated as specified in paragraph (a)(1) or (a)(2) of this section,
but subsequently increases emissions or potential to emit above the
major source levels (without first obtaining and complying with other
limitations that keep its potential to emit HAP below major source
levels, becomes a major source and must comply thereafter with all
applicable provisions of this subpart starting on the applicable
compliance date specified in paragraph (d) of this section. Nothing in
this paragraph is intended to preclude a source from limiting its
potential to emit through other appropriate mechanisms that may be
available through the permitting authority.
(1) Facilities that store natural gas or facilities that transport
and store natural gas shall determine major source status using the
maximum annual facility natural gas throughput calculated according to
paragraphs
[[Page 114]]
(a)(1)(i) through (a)(1)(iv) of this section.
(i) The owner or operator shall determine the number of hours to
complete the storage cycle for the facility. The storage cycle is the
number of hours for the injection cycle, calculated according to the
equation in paragraph (a)(1)(i)(A) of this section, plus the number of
hours for the withdrawal cycle, calculated according to the equation in
paragraph (a)(1)(i)(B) of this section.
(A) The hours for the facility injection cycle are determined
according to the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.005
Where:
IC = Facility injection cycle in hours/cycle.
WGC = Working gas capacity in cubic meters. The working gas capacity is
defined as the maximum storage capacity minus the FERC cushion
(as defined in Sec. 63.1271).
IRmax = Maximum facility injection rate in cubic meters per
hour.
(B) The hours for the facility withdrawal cycle are determined
according to the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.006
Where:
WC = Facility withdrawal cycle, hours/cycle.
WGC = Working gas capacity, cubic meters. The working gas capacity is
defined as the maximum storage capacity minus the FERC cushion
(as defined in Sec. 63.1271) and shall be the same value as
used in paragraph (a)(1)(i)(A) of this section.
WRmax = Maximum facility withdrawal rate in cubic meters per
hour.
(ii) The owner or operator shall calculate the number of storage
cycles for the facility per year according to the following equation:
[GRAPHIC] [TIFF OMITTED] TR17JN99.007
Where:
Cycle = Number of storage cycles for the facility per year.
IC = Number of hours for a facility injection cycle, hours/cycle, as
calculated in paragraph (a)(1)(i)(A) of this section.
WC = Number of hours for a facility withdrawal cycle, hours/cycle, as
calculated in paragraph (a)(1)(i)(B) of this section.
(iii) The owner or operator shall calculate the facilitywide maximum
annual glycol dehydration unit hours of operation based on the following
equation:
Operation = Cycles x WC
Where:
Operation = Facilitywide maximum annual glycol dehydration unit hours of
operation (hr/yr).
Cycles = Number of storage cycles for the facility per year, as
calculated in paragraph (a)(1)(ii) of this section.
WC = Number of hours for a facility withdrawal cycle, hours/cycle, as
calculated in paragraph (a)(1)(i)(B) of this section.
(iv) The owner or operator shall calculate the maximum facilitywide
natural gas throughput based on the following equation:
Throughput = Operation x WRmax
Where:
Throughput = Maximum facilitywide natural gas throughput in cubic meters
per year.
Operation = Maximum facilitywide annual glycol dehydration unit hours of
operation in hours per year, as calculated in paragraph
(a)(1)(iii) of this section.
WRmax = Maximum facility withdrawal rate in cubic meters per
hour.
(2) Facilities that only transport natural gas shall calculate the
maximum natural gas throughput as the highest annual natural gas
throughput over the 5 years prior to June 17, 1999, multiplied by a
factor of 1.2.
(3) The owner or operator shall maintain records of the annual
facility natural gas throughput each year and upon request, submit such
records to the Administrator. If the facility annual natural gas
throughput increases above the maximum natural gas throughput calculated
in paragraph (a)(1) or (a)(2) of this section, the maximum natural gas
throughput must be recalculated using the higher throughput multiplied
by a factor of 1.2.
(4) The owner or operator shall determine the maximum values for
other parameters used to calculate potential emissions as the maximum
over the same period for which maximum throughput is determined as
specified in paragraph (a)(1) or (a)(2) of this section. These
parameters shall be based
[[Page 115]]
on an annual average or the highest single measured value.
(b) The affected source is each glycol dehydration unit.
(c) The owner or operator of a facility that does not contain an
affected source, as specified in paragraph (b) of this section, is not
subject to the requirements of this subpart.
(d) The owner or operator of each affected source shall achieve
compliance with the provisions of this subpart by the following dates:
(1) The owner or operator of an affected source, the construction or
reconstruction of which commenced before February 6, 1998, shall achieve
compliance with this provisions of the subpart no later than June 17,
2002 except as provided for in Sec. 63.6(i). The owner or operator of an
area source, the construction or reconstruction of which commenced
before February 6, 1998, that increases its emissions of (or its
potential to emit) HAP such that the source becomes a major source that
is subject to this subpart shall comply with this subpart 3 years after
becoming a major source.
(2) The owner or operator of an affected source, the construction or
reconstruction of which commences on or after February 6, 1998, shall
achieve compliance with the provisions of this subpart immediately upon
initial startup or June 17, 1999, whichever date is later. Area sources,
the construction or reconstruction of which commences on or after
February 6, 1998, that become major sources shall comply with the
provisions of this standard immediately upon becoming a major source.
(e) An owner or operator of an affected source that is a major
source or is located at a major source and is subject to the provisions
of this subpart is also subject to 40 CFR part 70 or part 71 permitting
requirements.
(f) Exemptions. A facility with a facilitywide actual annual average
natural gas throughput less than 28.3 thousand standard cubic meters per
day, where glycol dehydration units are the only HAP emission source, is
not subject to the requirements of this subpart. Records shall be
maintained as required in Sec. 63.10(b)(3).