Natural Gas Distribution
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Last updated: 8 months ago
- Q523. Are natural gas distribution facilities required to report emissions from residential and commercial customer meters and associated regulator(s) under §98.232(i )?
- Q525. Please explain how many leak detection surveys must be conducted in a calendar year? Must a facility indicate in advance how many surveys will be conducted in the year?
- Q526. What happens if an LDC goes out to a custody transfer city gate station year after year and finds that it has no leaking components? Could EPA provide a sunset provision so that annual leak surveys would no longer be required?
- Q527. How do population counts work for distribution facilities in Eq. 31 and Eq. 32?
- Q528. I found what I think is an error in the equations W-31 and W-32 for estimating fugitive emissions from non-custody transfer gate stations.
- Q529. Where its underground service lines are made of an unknown material, may a distribution company assume the most conservative worst-case population emission factor in Table W-7 for these lines?
- Q530. Do emissions from cast iron services need to be calculated?
- Q531. If an local distribution company has a less than 5 mmBtu per hour external combustion device located adjacent to a subpart D facility under "common control", is reporting of the combustion emissions from the device required?
- Q532. What "facilities" must be reported for a municipally owned local distribution company subject that has distribution systems, meter stations, pipelines, and natural gas plants that store LNG?
- Q534. Are combustion emissions from emergency equipment exempt from reporting under subpart W?
- Q535. Does EPA intend to limit the burden of completing an additional leak survey on LDCs that voluntary fix leaks?
- Q536. Does EPA intend to allow for any correction factors for Non-Custody M&R Stations that tend to have lower gas volumes and pressures and thus lower emissions than Custody Transfer M&R Stations?
- Q537. Please explain whether detecting leaks through soap bubble testing is acceptable for natural gas distribution systems and compressor stations?
- Q538. Do the emission factors in Table A-7 include venting associated with maintenance work on distribution mains and service lines? Do these emissions need to be included in the venting log?
- Q539. For a 2011 report with the Natural Gas Distribution option selected, what definition does the term stations account for in the excel calculation spreadsheet?
- Q540. What is the meaning of Substitute Data as it relates to Local Distribution Companies?
- Q541. In 98.233(r), where tubing systems that are equal or less than one half inch diameter are exempted, is the rule referring to the nominal or actual interior diameter of the pipe?
- Q651. Would a monitoring plan that results in 10% of stations being monitored in each of years 1 and 2, 40% in year 3, 20% in year 4 and 20% in year five, be consistent with the rule language of “approximately equal across all years in the cycle.”
- Q768. What types of instruments are permissible for use in detecting equipment leaks and through valve leakage in Subpart W?