| (C) Tank hatches, not designed to be completely sealed,
shall remain closed (but not completely sealed in order to maintain
safe design functionality) except for sampling, gauging, loading,
unloading, or planned maintenance activities.
(D) To the extent that good engineering practices will
permit, new and reworked valves and piping connections shall be located
in a place that is reasonably accessible for leak checking during
plant operation. Underground process pipelines shall contain no buried
valves such that fugitive emission monitoring is rendered impractical.
(6) When leak detection and repair (LDAR) fugitive
monitoring is chosen by the operator, Table 9, in subsection (m) of
this section, shall apply. In addition, all components shall be physically
inspected at least weekly by operating personnel walk-through.
(7) Tanks and vessels that utilize a paint color to
minimize the effects of solar heating (including, but not limited
to, white or aluminum):
(A) to meet this requirement the solar absorptance
should be 0.43 or less, as referenced in Table 7.1 - 6 in Compilation
of Air Pollutant Emission Factors (AP-42);
(B) paint shall be applied according to paint producers
recommended application requirements if provided and in sufficient
quantity as to be considered solar resistant;
(C) paint coatings shall be maintained in good condition
and will not compromise tank integrity. Minimal amounts of rust may
be present not to exceed 10% of the external surface area of the roof
or walls of the tank and in no way may compromise tank integrity.
Additionally, up to 10% of the external surface area of the roof or
walls of the tank or vessel may be painted with other colors to allow
for identification and/or aesthetics;
(D) for tanks and vessels purposefully darkened to
create the process reaction and help condense liquids from being entrained
in the vapor or are in an area whereby a local, state, federal law,
ordinance, or private contract predating this section's effective
date establishes in writing tank and vessel colors other than white,
these requirements do not apply.
(8) All emission estimation methods including but not
limited to computer programs such as GRI-GLYCalc, AmineCalc, E&P
Tanks, and Tanks 4.0, must be used with monitoring data generated
in accordance with Table 8 in subsection (m) of this section where
monitoring is required. All emission estimation methods must also
be used in a way that is consistent with protocols established by
the commission or promulgated in federal regulations (NSPS, NESHAPS).
Where control is relied upon to meet subsection (k) of this section,
control monitoring is required.
(9) Process reboilers, heaters, and furnaces that are
also used for control of waste gas streams:
(A) may claim 50% to 99% destruction efficiency for
VOCs and H2 S depending on the design
and level of monitoring applied. The 90% destruction may be claimed
where the waste gas is delivered to the flame zone or combustion fire
box with basic monitoring as specified in subsection (j) of this section.
Any value greater than 90% and up to 99% destruction efficiency may
be claimed where enhanced monitoring and/or testing are applied as
specified in subsection (j) of this section;
(B) if the waste gas is premixed with the primary fuel
gas and used as the primary fuel in the device through the primary
fuel burners, 99% destruction may be claimed with basic monitoring
as specified in subsection (j) of this section;
(C) in systems where the combustion device is designed
to cycle on and off to maintain the designed heating parameters, and
may not fully utilize the waste gas stream, records of run time and
enhanced monitoring are required to claim any run time beyond 50%.
(10) Vapor recovery Units (VRUs) may claim up to 100%
control. The control efficiency is based on whether it is a mechanical
VRU (mVRU) or a liquid VRU (lVRU). The VRUs must meet the appropriate
design, monitoring, and recordkeeping in Table 7 and Table 8 in subsection
(m) of this section.
(11) Flares used for control of emissions from production,
planned MSS, emergency, or upset events may claim design destruction
efficiency of 98%. 99% may be claimed for destruction of compounds
containing only carbon, hydrogen, and oxygen with no more than three
carbon atoms. All flares must be designed and operated in accordance
with the following:
(A) meet specifications for minimum heating values
of waste gas, maximum tip velocity, and pilot flame monitoring found
in 40 CFR §60.18;
(B) if necessary to ensure adequate combustion, sufficient
gas shall be added to make the gases combustible;
(C) an infrared monitor is considered equivalent to
a thermocouple for flame monitoring purposes;
(D) an automatic ignition system may be used in lieu
of a continuous pilot;
(E) flares must be lit at all times when gas streams
are present;
(F) fuel for all flares shall be sweet gas or liquid
petroleum gas except where only field gas is available and it is not
sweetened at the site; and
(G) flares shall be designed for and operated with
no visible emissions, except for periods not to exceed at total of
five minutes during any two consecutive hours. Acid gas flares which
must comply with opacity limits and records in accordance with §111.111(a)(4)
of this title (relating to Requirements for Specified Sources), regarding
gas flares, are exempt from this visible emission limitation.
(12) Thermal oxidation and vapor combustion control
devices:
(A) may claim design destruction efficiency from 90%
to 99.9% for VOCs and H2S depending on
the design and the level of monitoring and testing applied;
(B) a device designed for the variability of the waste
gas streams it controls with basic monitoring to indicate oxidation
or combustion is occurring when waste gas is directed to the device
may claim 90% destruction efficiency;
(C) devices with intermediate monitoring, designed
for the variability of the waste gas streams they control, with a
fire box or fire tube designed to maintain a temperature above 1,400
degrees Fahrenheit (F) for 0.5 seconds, residence time; or designed
to meet the parameters of a flare with minimum heating values of waste
gas, maximum tip velocity, and pilot flame monitoring as found in
40 CFR §60.18, but within a full or partial enclosure may claim
a design destruction efficiency of 90% to 98%;
(D) devices with enhanced monitoring and ports and
platforms to allow stack testing may claim a 99% efficiency where
the devices are designed for the variability of the waste gas streams
they control, with a fire box or fire tube designed to maintain a
temperature above 1,400 degrees F for 0.5 seconds, residence time;
(E) devices that can claim 99% destruction efficiency
may claim 99.9% destruction efficiency if stack testing is conducted
and confirms the efficiency and the enhanced monitoring is adjusted
to ensure the continued efficiency. Temperature and residence time
requirements may be modified if stack testing is conducted to confirm
efficiencies.
(f) Notification, Certification, and Registration Requirements.
(1) For all previous claims of this section (or any
previous version of this section) existing authorized facilities,
or group of facilities, identified in subsection (b)(7) of this section
must submit a notification no later than January 5, 2015. Facilities
or groups of facilities which meet subsection (c)(4) of this section
do not have to meet the following notification requirements:
(A) For actively operating facilities which have never
been registered with the commission, submit updated Core Data and
basic identifying information (previously claimed historical versions
of this section and lease name or well numbers as provided to the
Texas Railroad Commission) through ePermits using the "APD OGS Historical
Notification."
(B) For those facilities which have previously registered
with the commission and updates are needed to the commission's Central
Registry (CR), submit a hard copy of a Core Data Form with an attachment
listing identifying information (previously claimed historical versions
of this section and lease name or well numbers as provided to the
Texas Railroad Commission). If no updates to CR are required, no further
action is needed.
(C) No fee is required for this notification.
(2) If no other changes, except for authorizing planned
MSS, occur at an existing site under this section, or any previous
version of this section, the following apply no later than January
5, 2012:
(A) Records demonstrating compliance with subsection
(i) of this section must be kept;
(B) If the existing OGS is certified, an addendum to
the OGS certification may be filed using Form APD-CERT. No fee is
required for this updated certification; and
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