Access Keys:
Skip to content (Access Key - 0)

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?

Disclaimer This information is intended to provide general and administrative information about 40 CFR Part 98. It does not represent legal advice. This information does not have legally binding effect or expressly or implicitly create, expand, or limit any legal rights, obligations, responsibilities, expectations, or benefits in regard to any person. Facility owners or operators and suppliers are responsible for determining how they would be affected by the requirements of 40 CFR Part 98.

Q618. There are differences in the applicability tool calculation spreadsheets for the estimation of vented emission from reciprocating compressor rod-packing venting. In the Transmission Compression Tool the units are "number of compressor cylinders" while in the Underground NG Storage Tool the units are "number of compressors". What is the difference and which do you think should be used?

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
Adaptavist Theme Builder Powered by Atlassian Confluence