Entergy Louisiana, LLC- Ninemile Point Generating Station

NPDES permit LA0003093 · Major NON-POTW · effective, expires 2028-06-30 · 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 176 forms filed late

Last period with anything received: 2026-08-31.

Reporting

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

Limits in force (113)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG <= 115 deg F all year
001Temperature, water deg. fahrenheitDAILY MX <= 118 deg F all year
001Whole effluent toxicity - retest #148HR MIN report only all year
001Whole effluent toxicity - retest #148HR MIN report only all year
001Whole effluent toxicity - retest #1MO AV MN report only all year
001Whole effluent toxicity - retest #1MO AV MN report only all year
001Whole effluent toxicity - retest #248HR MIN report only all year
001Whole effluent toxicity - retest #248HR MIN report only all year
001Whole effluent toxicity - retest #2MO AV MN report only all year
001Whole effluent toxicity - retest #2MO AV MN report only 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 residualDAILY MX <= .2 mg/L all year
001Whole Effluent Toxicity - Retest #348HR MIN report only all year
001Whole Effluent Toxicity - Retest #348HR MIN report only all year
001Whole Effluent Toxicity - Retest #3MO AV MN report only all year
001Whole Effluent Toxicity - Retest #3MO AV MN report only all year
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex48HR MIN report only all year
001Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulexMO AV MN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas48HR MIN report only all year
001LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelasMO AV MN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex48HR MIN report only all year
001NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulexMO AV MN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas48HR MIN report only all year
001NOAEC Lethal Static Renewal 48Hr acute Pimephales promelasMO AV MN report only all year
001Coef Of Var Static Renewal 48Hr Acute D. pulexMAXIMUM report only all year
001Coef Of Var Static Renewal 48Hr Acute Pimephales promelasMAXIMUM report only all year
003Temperature, water deg. fahrenheitMO AVG <= 111 deg F all year
003Temperature, water deg. fahrenheitDAILY MX <= 113 deg F all year
003Flow, in conduit or thru treatment plantMO AVG report only all year
003Flow, in conduit or thru treatment plantDAILY MX report only all year
003Chlorine, total residualDAILY MX <= .2 mg/L all year
004Temperature, water deg. fahrenheitMO AVG <= 111 deg F all year
004Temperature, water deg. fahrenheitDAILY MX <= 113 deg F 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
004Chlorine, total residualDAILY MX <= .2 mg/L all year
005pHINST MIN >= 6 SU all year
005pHINST MAX <= 9 SU all year
005Solids, total suspendedMO AVG <= 30 mg/L all year
005Solids, total suspendedDAILY MX <= 100 mg/L all year
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
005Solids, total suspended, non-algalMO AVG <= 30 mg/L May, Jun, Jul, Aug, Sep
005Solids, total suspended, non-algalDAILY MX <= 100 mg/L May, Jun, Jul, Aug, Sep
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU all year
006Solids, total suspendedMO AVG <= 30 mg/L all year
006Solids, total suspendedDAILY MX <= 100 mg/L all year
006Oil & GreaseDAILY MX <= 15 mg/L all year
006Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
006Flow, in conduit or thru treatment plantMO AVG report only all year
006Flow, in conduit or thru treatment plantDAILY MX report only all year
006Solids, total suspended, non-algalMO AVG <= 30 mg/L all year
006Solids, total suspended, non-algalDAILY MX <= 100 mg/L all year
007pHINST MIN >= 6 SU all year
007pHINST MAX <= 9 SU all year
007Oil & GreaseDAILY MX <= 15 mg/L all year
007Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
007Flow, in conduit or thru treatment plantMO AVG report only all year
007Flow, in conduit or thru treatment plantDAILY MX report only all year
008pHINST MIN >= 6 SU all year
008pHINST MAX <= 9 SU all year
008Solids, total suspendedMO AVG <= 30 mg/L all year
008Solids, total suspendedDAILY MX <= 100 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
008Solids, total suspended, non-algalMO AVG <= 30 mg/L May, Jun, Jul, Aug, Sep
008Solids, total suspended, non-algalDAILY MX <= 100 mg/L May, Jun, Jul, Aug, Sep
105Copper, total [as Cu]MO AVG <= 1 mg/L all year
105Copper, total [as Cu]DAILY MX <= 1 mg/L all year
105Iron, total [as Fe]MO AVG <= 1 mg/L all year
105Iron, total [as Fe]DAILY MX <= 1 mg/L all year
105Flow, in conduit or thru treatment plantMO AVG report only all year
105Flow, in conduit or thru treatment plantDAILY MX report only all year
106Oil & GreaseMO AVG <= 15 mg/L all year
106Oil & GreaseDAILY MX <= 20 mg/L all year
106Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
106Flow, in conduit or thru treatment plantMO AVG report only all year
106Flow, in conduit or thru treatment plantDAILY MX report only all year
205pHINST MIN >= 6 SU all year
205pHINST MAX <= 9 SU all year
205Solids, total suspendedDAILY MX <= 90 mg/L all year
205Solids, total suspendedDAILY MX <= 90 mg/L all year
205Oil & GreaseDAILY MX <= 15 mg/L all year
205Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
205Lead, total [as Pb]DAILY MX <= 50 ug/L all year
205BenzeneDAILY MX <= 50 ug/L all year
205BTEXDAILY MX <= 250 ug/L all year
205Flow, in conduit or thru treatment plantMO AVG report only all year
205Flow, in conduit or thru treatment plantDAILY MX report only all year
206Oil & GreaseMO AVG <= 15 mg/L all year
206Oil & GreaseDAILY MX <= 20 mg/L all year
206Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
206Flow, in conduit or thru treatment plantMO AVG report only all year
206Flow, in conduit or thru treatment plantDAILY MX report only all year
305Oil & GreaseMO AVG <= 15 mg/L all year
305Oil & GreaseDAILY MX <= 20 mg/L all year
305Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
305Flow, in conduit or thru treatment plantMO AVG report only all year
305Flow, in conduit or thru treatment plantDAILY MX report only all year
306Oil & GreaseMO AVG <= 15 mg/L all year
306Oil & GreaseDAILY MX <= 20 mg/L all year
306Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
306Flow, in conduit or thru treatment plantMO AVG report only all year
306Flow, in conduit or thru treatment plantDAILY MX report only all year
405Oil & GreaseMO AVG <= 15 mg/L all year
405Oil & GreaseDAILY MX <= 20 mg/L all year
405Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
405Flow, in conduit or thru treatment plantMO AVG report only all year
405Flow, in conduit or thru treatment plantDAILY MX report only all year
IT01Flow, in conduit or thru treatment plantMO AVG report only all year
IT01Flow, 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