Cooperative Energy, a Mississippi electric cooperative, Moselle Generating Plant

NPDES permit MS0021997 · Minor NON-POTW · effective, expires 2029-11-30 · 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 37 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 (50)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
001pHMINIMUM >= 6 SU all year
001pHMAXIMUM <= 9 SU all year
001Solids, total suspendedMO AVG <= 21 mg/L all year
001Solids, total suspendedDAILY MX <= 69 mg/L all year
001Oil & GreaseMO AVG <= 10 mg/L all year
001Oil & GreaseDAILY MX <= 14 mg/L all year
001Zinc, total recoverableQRTR AVG <= .5 mg/L all year
001Zinc, total recoverableQB <= 1 mg/L all year
001Chromium, total recoverableQRTR AVG <= .2 mg/L all year
001Chromium, total recoverableQB <= .2 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG report only all year
001Flow, in conduit or thru treatment plantDAILY MX report only all year
001Chlorine, free availableMO AVG <= .2 mg/L all year
001Chlorine, free availableDAILY MX <= .5 mg/L all year
001Chlorination durationMO AVG report only all year
001Chlorination durationDAILY MX <= 120 min all year
002Temperature, water deg. fahrenheitMO AVG report only all year
002Temperature, water deg. fahrenheitDAILY MX <= 90 deg F all year
002pHMINIMUM >= 6 SU all year
002pHMAXIMUM <= 9 SU all year
002Solids, total suspendedMO AVG <= 30 mg/L all year
002Solids, total suspendedDAILY MX <= 100 mg/L all year
002Oil & GreaseMO AVG <= 15 mg/L all year
002Oil & GreaseDAILY MX <= 20 mg/L all year
002Copper, total recoverableMO AVG <= 1 mg/L all year
002Copper, total recoverableDAILY MX <= 1.74 mg/L all year
002Flow, in conduit or thru treatment plantMO AVG report only all year
002Flow, in conduit or thru treatment plantDAILY MX report only all year
102pHMINIMUM >= 6 SU all year
102pHMAXIMUM <= 9 SU all year
102Solids, total suspendedMO AVG <= 30 mg/L all year
102Solids, total suspendedDAILY MX <= 100 mg/L all year
102Solids, total suspendedMO AVG report only all year
102Solids, total suspendedDAILY MX report only all year
102Oil & GreaseMO AVG <= 15 mg/L all year
102Oil & GreaseDAILY MX <= 20 mg/L all year
102Oil & GreaseMO AVG report only all year
102Oil & GreaseDAILY MX report only all year
102Iron, total recoverableMO AVG <= 1 mg/L all year
102Iron, total recoverableDAILY MX <= 1 mg/L all year
102Iron, total recoverableMO AVG report only all year
102Iron, total recoverableDAILY MX report only all year
102Copper, total recoverableMO AVG <= 1 mg/L all year
102Copper, total recoverableDAILY MX <= 1 mg/L all year
102Copper, total recoverableMO AVG report only all year
102Copper, total recoverableDAILY MX report only all year
102Flow, in conduit or thru treatment plantMO AVG report only all year
102Flow, in conduit or thru treatment plantDAILY 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