40 CFR Appendix Table W-4B to Subpart W of Part 98 - Default Total Hydrocarbon Population Emission Factors for Underground Natural Gas Storage

Table W-4B to Subpart W of Part 98 - Default Total Hydrocarbon Population Emission Factors for Underground Natural Gas Storage

Table W-4B to Subpart W of Part 98 - Default Total Hydrocarbon Population Emission Factors for Underground Natural Gas Storage

Underground natural gas storage Emission factor
(scf/hour/component)
Population Emission Factors - Storage Wellheads, Gas Service
Connector 0.01
Valve 0.1
Pressure Relief Valve 0.17
Open-Ended Line 0.03
Population Emission Factors - Other Components, Gas Service
Low Continuous Bleed Pneumatic Device Vents 1 1.37
High Continuous Bleed Pneumatic Device Vents 1 18.20
Intermittent Bleed Pneumatic Device Vents 1 2.35

1 Emission Factor is in units of “scf/hour/device.”

[81 FR 86517, Nov. 30, 2016]