Q738. How did the use of Best Available Monitoring Methods (BAMM) affect emissions?

A738. In order to provide Petroleum and Natural Gas System facilities with time to adjust to the requirements of the GHGRP, EPA made available the optional use of Best Available Monitoring Methods (BAMM) for unique or unusual circumstances. Where a facility used BAMM, it was required to follow emission calculations specified by the EPA, but was allowed to use alternative methods for determining inputs to calculate emissions. These inputs are the values used by reporters to calculate equation outputs or results. Examples of BAMM include monitoring methods used by the facility that do not meet the specifications of the Petroleum and Natural Gas Systems source category (40 CFR Part 98, Subpart W), supplier data, engineering calculations, and other company records. It is not immediately apparent how the use of BAMM affected emissions, because facilities used BAMM in different ways and for different parameters depending on their unique or unusual circumstances.

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Source: Brian Cook, 2/1/2013 (W Data release FAQs 2-1-13 3pm (2).doc), revised by M. DeFigueiredo, 2/5/2013, A. McKittrick 9/30/2013

Approval / Publishing History: Version 2

Expiration: none

Relevant Subpart/Component: Subpart W, General
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