Columbia Gas Transmission, LLC

NPDES permit VA0092185 · Minor NON-POTW · effective, expires 2029-08-31 · EPA's file as of 2026-09-19

Check this month's numbers before you file
Watch this permit — $79 a month. Every Monday, from EPA's newest files: the next report due and when, whether EPA's file holds your last one, any change to this permit's limits or status, and the renewal date.

EPA's record, 2025-09-01 to 2026-08-31

0values over a limit
0required values missing, on 0 form(s)
0of 5 forms filed late

Last period with anything received: 2026-06-30.

Reporting

Reports are due about 10 days after each monitoring period ends (the most common figure among VA permits in EPA's filings — check your permit).

Limits in force (10)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. centigradeMAXIMUM report only all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMAXIMUM report only all year
001Nitrogen, total [as N]MAXIMUM report only all year
001Nitrogen, Kjeldahl, total [as N]MAXIMUM report only all year
001Nitrite + Nitrate total [as N]MAXIMUM report only all year
001Phosphorus, total [as P]MAXIMUM report only all year
001Flow, in conduit or thru treatment plantMAXIMUM report only all year
001Chlorine, total residualMAXIMUM <= 3.6 mg/L all year

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states