Q618. In the applicability tool calculation spreadsheets, why do transmission compression and underground storage differ in the units used for vented emission from reciprocating compressor rod-packing venting?

A618. EPA has developed the calculation spreadsheets using best available data to help industry determine applicability. Based on the data available, EPA has developed factors on a per cylinder level and compressor level for transmission and underground storage segments, respectively. The transmission compression tool may be used for the transmission segment and the underground storage tool for underground storage segment. Please note that the applicability tool is intended to assist reporting facilities/owners in understanding key provisions of the rule. They are not intended to be a substitute for the rule.

 

Updated on January 25, 2012

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Source: EPA, Frequently Asked Questions, Petroleum and Natural Gas Systems, July 2011, http://www.epa.gov/ghgreporting/documents/pdf/2011/documents/Subpart-W-additional-faq.pdf.

Approval / Publishing History: Version 1 Updated and approved by M. Eaddy 2/5/12

Expiration : none

Relevant Subpart: W

History Panel For Internal Use - Not Visible to the Public

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