(a) The following control requirements apply to any
pneumatic pump or pneumatic controller at a natural gas processing
plant.
(1) The pneumatic pump drive must not emit volatile
organic compounds (VOC) emissions to the atmosphere.
(2) Each single continuous-bleed pneumatic controller
must have a natural gas bleed rate equal to 0.0 standard cubic feet
per hour (scfh).
(b) The following control requirements apply to any
pneumatic pump or pneumatic controller subject to this division at
a location other than at a natural gas processing plant.
(1) VOC emissions from each pneumatic pump must be
reduced by 95%.
(2) Each pneumatic controller must have a natural gas
bleed rate of less than or equal to 6.0 scfh.
(c) A control device used to comply with this section
must meet one of the following conditions at all times when VOC vapors
are routed to the control device or to a process. Multiple vents may
be routed to the same control device or process. The VOC vapors must
be routed through a closed vent system, which must be designed and
operated to route all captured VOC vapors to a process or a control
device under normal operations. Control devices and closed vent systems
must be in compliance with §115.178 of this title (relating to
Monitoring and Inspection Requirements) and §115.179 of this
title (relating to Approved Test Methods and Testing Requirements).
(1) A control device, other than a device specified
in paragraphs (2) and (3) of this subsection, may be used and must
maintain a minimum control efficiency of at least 95% or a VOC concentration
of equal to or less than 275 parts per million by volume (ppmv), as
propane, on a wet basis corrected to 3% oxygen. The 95% VOC control
efficiency and 275 ppmv VOC concentration are calculated from the
gas stream at the control device outlet. For a boiler or process heater
used as the control device, the vent gas stream must be introduced
into the flame zone of the boiler or process heater.
(2) A flare may be used and must be designed and operated
in accordance with 40 Code of Federal Regulations (CFR) §60.18(b)
- (f) (as amended through December 22, 2008 (73 FR 78209)). The flare
must be lit at all times when VOC vapors are routed to the flare.
(3) VOC emissions may be routed to a process if the
emissions are compatible with the process and would be retained within
the process. Routing to a process is considered equivalent to a 95%
control efficiency.
(4) A control device used to comply with paragraph
(1) of this subsection must operate with no visible emissions, as
determined through a visible emissions test conducted according to
United States Environmental Protection Agency (EPA) Method 22, 40
CFR Part 60, Appendix A-7, Section 11 (as amended March 16, 2015 (83
FR 13751)), except for periods not to exceed a total of one minute
during any 15-minute observation period.
(d) The following requirements apply to a bypass installed
on a closed vent system able to divert any portion of the flow from
entering a control device or routing to a process.
(1) A flow indicator must be installed, calibrated,
and maintained at the inlet of each bypass. The flow indicator must
take a reading at least once every 15 minutes and initiate an alarm
notifying operators to take prompt remedial action when bypass flows
are present.
(2) Each bypass valve must be secured in the non-diverting
position using a car-seal or a lock-and-key type configuration.
(e) The following exceptions apply, as specified, to
the pneumatic controller or pneumatic pump control requirements in
subsections (a) or (b) of this section.
(1) By the appropriate compliance date in §115.183
of this title (relating to Compliance Schedules), the VOC emissions
from a pneumatic pump at a well site for which a control device does
not exist and for which routing to a process is technically infeasible,
as demonstrated in paragraph (3) of this subsection, are not required
to be controlled in accordance with subsection (b) of this section.
The owner or operator shall maintain records documenting that there
is no control device available and whereupon this exclusion no longer
applies, the owner or operator shall be in compliance with the control
requirements of subsection (b) of this section and shall keep records
documenting the change in compliance with the initial report as required
in §115.180 of this title (relating to Recordkeeping Requirements).
(2) By the appropriate compliance date in §115.183
of this title, a control device located at the same site as a pneumatic
pump, and with which controlling the VOC emissions from the pneumatic
pump is technically feasible, that achieves a control efficiency less
than 95% must be used if a control device achieving a 95% control
efficiency is not available. If more than one control device with
less than 95% control efficiency is available, the control device
with the highest control efficiency must be used. The same monitoring,
testing, and recordkeeping requirements apply to such a control device
that apply to control devices in subsection (c) of this section.
(3) For a pneumatic pump located at a well site for
which the control requirements in this section are technically infeasible,
the owner or operator shall make a demonstration of technical infeasibility
in accordance with §115.176(b) of this title (relating to Alternative
Control Requirements). Upon the date the demonstration of technical
infeasibility is no longer true, whereupon this exclusion no longer
applies, the owner or operator shall comply with the control requirements
of this section and shall keep records documenting the change in compliance
with the initial report as required in §115.180 of this title.
(4) For a pneumatic controller for which there is a
functional need for a bleed rate greater than the limits in subsection
(a) of this section, the owner or operator shall make and maintain
record of a determination of functional need in accordance with §115.176(c)
of this title. Upon the date the determination of functional need
is no longer true, the owner or operator shall comply with the control
requirements of this section and shall keep records documenting the
change in compliance with the initial report as required in §115.180
of this title.
(f) Pneumatic pumps and controllers subject to this
division must be operated and maintained in accordance with manufacturer's
recommendations.
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