ENBRIDGE HOLDINGS MISSISSIPPI LLC, FORMER HARMONY GAS PLANT

NPDES permit MS0062308 · Minor NON-POTW · effective, expires 2031-07-31 · 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 11 forms filed late

Last period with anything received: 2026-07-31.

Reporting

Reports are due about 28 days after each monitoring period ends (the most common figure among MS permits in EPA's filings — check your permit).

Limits in force (9)

OutfallParameterStatisticLimitMonths
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Oil & GreaseDAILY MX <= 15 mg/L all year
001Benzene, ethylbenzene, toluene, xylene combinationQRTR AVG <= .75 mg/L all year
001Benzene, ethylbenzene, toluene, xylene combinationDAILY MX <= 1.12 mg/L all year
001Chlorinated phenolsQRTR AVG <= .05 mg/L all year
001Chlorinated phenolsDAILY MX <= .075 mg/L all year
001Flow, totalQRTR AVG report only all year
001Flow, totalDAILY MX report only 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