NPPD COOPER NUCLEAR BROWNVILLE

NPDES permit NE0001244 · Major NON-POTW · effective, expires 2026-12-31 · 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 30 forms filed late

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

Reporting

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

Limits in force (52)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitDAILY MX <= 109.4 deg F all year
001pHDAILY MN >= 6.5 SU all year
001pHDAILY MX <= 9 SU 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, total residualMO AVG <= .018 mg/L Mar, Apr, May
001Chlorine, total residualMO AVG <= .019 mg/L Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualMO AVG <= .018 mg/L Jan, Feb, Nov, Dec
001Chlorine, total residualDAILY MX <= .037 mg/L Mar, Apr, May
001Chlorine, total residualDAILY MX <= .039 mg/L Jun, Jul, Aug, Sep, Oct
001Chlorine, total residualDAILY MX <= .037 mg/L Jan, Feb, Nov, Dec
002BpHDAILY MN >= 6.5 SU all year
002BpHDAILY MX <= 9 SU all year
002BSolids, total suspendedMO AVG <= 30 mg/L all year
002BSolids, total suspendedDAILY MX <= 100 mg/L all year
002BOil and grease, hexane extr methodMO AVG report only all year
002BOil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
002BFlow, in conduit or thru treatment plantMO AVG report only all year
002BFlow, in conduit or thru treatment plantDAILY MX report only all year
002CpHDAILY MN >= 6.5 SU all year
002CpHDAILY MX <= 9 SU all year
002CSolids, total suspendedMO AVG <= 30 mg/L all year
002CSolids, total suspendedDAILY MX <= 100 mg/L all year
002COil and grease, hexane extr methodMO AVG report only all year
002COil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
002CFlow, in conduit or thru treatment plantMO AVG report only all year
002CFlow, in conduit or thru treatment plantDAILY MX report only all year
004pHDAILY MN >= 6.5 SU all year
004pHDAILY MX <= 9 SU all year
004Solids, total suspendedMO AVG <= 30 mg/L all year
004Solids, total suspendedDAILY MX <= 100 mg/L all year
004Oil and grease, hexane extr methodMO AVG report only all year
004Oil and grease, hexane extr methodDAILY MX <= 10 mg/L all year
004Flow, in conduit or thru treatment plantMO AVG report only all year
004Flow, in conduit or thru treatment plantDAILY MX report only all year
008pHDAILY MN >= 6 SU all year
008pHDAILY MX <= 9 SU all year
008Solids, total suspended30DA AVG <= 30 mg/L all year
008Solids, total suspendedMAXIMUM <= 100 mg/L all year
008Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
008Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
008Flow, in conduit or thru treatment plantMO AVG report only all year
008Flow, in conduit or thru treatment plantDAILY MX report only all year
009pHDAILY MN >= 6 SU all year
009pHDAILY MX <= 9 SU all year
009Solids, total suspendedMO AVG <= 30 mg/L all year
009Solids, total suspendedDAILY MX <= 100 mg/L all year
009Oil and grease, hexane extr methodMO AVG <= 15 mg/L all year
009Oil and grease, hexane extr methodDAILY MX <= 20 mg/L all year
009Flow, in conduit or thru treatment plantMO AVG report only all year
009Flow, 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