40 CFR Appendix Table W-7 to Subpart W of Part 98 - Default Methane Emission Factors for Natural Gas Distribution
|Natural gas distribution||Emission factor (scf/hour/
|Pressure Relief Valve||0.27|
|Below Grade M&R Station, Inlet Pressure >300 psig||1.30|
|Below Grade M&R Station, Inlet Pressure 100 to 300 psig||0.20|
|Below Grade M&R Station, Inlet Pressure <100 psig||0.10|
1 Excluding customer meters.
2 Emission Factor is in units of “scf/hour/station.”
3 Emission Factor is in units of “scf/hour/mile.”
4 Emission Factor is in units of “scf/hour/number of services.”
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