§ 129.126. Compressors.
(a) Applicability. This section applies to the owner or operator of a reciprocating compressor or centrifugal compressor subject to § 129.121(a)(4) (relating to general provisions and applicability) that meets the following:
(1) Reciprocating compressor. Each reciprocating compressor located between the wellhead and point of custody transfer to the natural gas transmission and storage segment.
(2) Centrifugal compressor. Each centrifugal compressor using wet seals that is located between the wellhead and point of custody transfer to the natural gas transmission and storage segment.
(b) VOC emissions control requirements for a reciprocating compressor. Beginning December 10, 2023, the owner or operator of a reciprocating compressor subject to this section shall meet one of the following:
(1) Replace the reciprocating compressor rod packing on or before one of the following:
(i) The reciprocating compressor has operated for 26,000 hours. The number of hours of operation must be continuously monitored beginning on the later of:
(A) The date of the most recent reciprocating compressor rod packing replacement.
(B) December 10, 2022, for a reciprocating compressor rod packing that has not yet been replaced.
(ii) The reciprocating compressor has operated for 36 months. The number of months of operation must be continuously monitored beginning on the later of:
(A) The date of the most recent reciprocating compressor rod packing replacement.
(B) December 10, 2025, for a reciprocating compressor rod packing that has not yet been replaced.
(2) Route the VOC emissions to a control device or a process that meets § 129.129 (relating to control devices) by using a reciprocating compressor rod packing emissions collection system that operates under negative pressure and meets the cover requirements of § 129.128(a) (relating to covers and closed vent systems) and the closed vent system requirements of § 129.128(b).
(c) VOC emissions limitation and control requirements for a centrifugal compressor. Except as specified in subsection (d), the owner or operator of a centrifugal compressor subject to this section shall perform the following:
(1) Reduce the VOC emissions from each centrifugal compressor wet seal fluid degassing system by 95.0% by weight or greater.
(2) Equip the wet seal fluid degassing system with a cover that meets the requirements of § 129.128(a) through a closed vent system that meets the requirements of § 129.128(b) to a control device or a process that meets the applicable requirements of § 129.129.
(3) Demonstrate that the VOC emissions are reduced as specified in § 129.129(k).
(d) Exemptions. Subsection (c) does not apply to the owner or operator of a centrifugal compressor that meets the following:
(1) Is located at a well site.
(2) Is located at an adjacent well site and services more than one well site.
(e) Recordkeeping and reporting requirements. The owner or operator of a reciprocating compressor or centrifugal compressor subject to this section shall do the following, as applicable:
(1) For a reciprocating compressor, maintain the records under § 129.130(e) (relating to recordkeeping and reporting) and submit the reports under § 129.130(k)(3)(iv).
(2) For a centrifugal compressor, maintain the records under § 129.130(f) and submit the reports under § 129.130(k)(3)(v).
Authority The provisions of this § 129.126 added under section 5(a)(1) and (8) of the Air Pollution Act (35 P.S. § 4005(a)(1) and (8)).
Source The provisions of this § 129.126 added December 9, 2022, effective December 10, 2022, 52 Pa.B. 7587.
Cross References This section cited in 25 Pa. Code § 129.121 (relating to general provisions and applicability); 25 Pa. Code § 129.122 (relating to definitions, acronyms and EPA methods); 25 Pa. Code § 129.127 (relating to fugitive emissions components); 25 Pa. Code § 129.128 (relating to covers and closed vent systems); 25 Pa. Code § 129.129 (relating to control devices); and 25 Pa. Code § 129.130 (relating to recordkeeping and reporting).
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