Md. Code Regs. 26.11.41.05 - Reciprocating Natural Gas Compressor Methane Emission Control Requirements
A. All
reciprocating natural gas compressor components at an affected facility shall
comply with the leak detection and repair requirements in Regulation .03 of
this chapter where applicable.
B.
Control Measures for Reciprocating Natural Gas Compressor.
(1) By January 1, 2021, compressor vent
stacks used to vent rod packing/seal emissions shall be controlled with the use
of a vapor collection system as specified in Regulation .06 of this chapter;
or
(2) By April 1, the
reciprocating natural gas compressor rod packing/seal emission flow rate
through the rod packing/seal vent stack shall be measured annually through
direct measurement (high volume sampling, bagging, calibrated flow measuring
instrument, etc.) while the compressor is operating at normal operating
temperature.
(a) Direct measurements shall
use one of the following methods:
(i) Vent
stacks shall be equipped with a meter or instrumentation to measure the rod
packing or seal emissions flow rate; or
(ii) Vent stacks shall be equipped with a
clearly identified access port to measure individual or combined rod packing or
seal emission flow rates.
(b) If the measurement is not obtained
because the compressor is not operating for the scheduled test date, testing
shall be conducted within 7 calendar days of resumed operation.
(3) A reciprocating natural gas
compressor with a rod packing/seal with a measured emission flow rate that
exceeds 1 standard cubic foot per minute, or a combined rod packing or seal
emission flow rate that exceeds the number of compression cylinders multiplied
by 1 standard cubic foot per minute shall:
(a) Be successfully repaired or replaced
within 30 calendar days from the date of the exceedance; or
(b) Conduct natural gas compressor rod
packing/seal emission flow rate measurements every 6 months or when the
compressor resumes operation, whichever is later.
(4) A reciprocating natural gas compressor
with a measured emission flow rate that exceeds 2 standard cubic feet per
minute, or a combined rod packing or seal emission flow rate that exceeds the
number of compression cylinders multiplied by 2 standard cubic feet per minute,
shall be successfully repaired or replaced within 30 calendar days from the
date of the exceedance.
C. Delay of Repair for Reciprocating Natural
Gas Compressor.
(1) A delay of repair may
occur provided the owner or operator provides documentation, upon request from
the Department, that the delivery of parts or equipment required to make
necessary repairs will take more than 30 days from the last emission flow rate
measurement and that the parts have been ordered.
(2) A delay of repair to obtain parts or
equipment may not exceed 60 days from the date of the last emission flow rate
measurement unless the owner or operator notifies the Department, in writing,
of the extended delay and provides an estimated time by which the repairs will
be completed.
(3) A reciprocating
natural gas compressor with a rod packing/seal emission flow rate measured
above the standard specified in §B(4) of this regulation, and which has leaking
parts deemed unsafe to monitor or requiring a facility shutdown, shall be
successfully repaired by the end of the next planned process shutdown or within
12 months from the date of the flow rate measurement, whichever is
sooner.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.