Entergy Louisiana, LLC- Sterlington Generating Plant

NPDES permit LA0007579 · Minor NON-POTW · administratively continued, expires 2026-06-30 · 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.

This permit expired on 2026-06-30 and is administratively continued: its last limits keep applying until a new permit is issued, and EPA still expects the reports.

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

0values over a limit
0required values missing, on 0 form(s)
0of 57 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 LA permits in EPA's filings — check your permit).

Limits in force (63)

OutfallParameterStatisticLimitMonths
001Temperature, water deg. fahrenheitMO AVG report only all year
001Temperature, water deg. fahrenheitINST MAX report only all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001Chromium, total [as Cr]MO AVG <= .2 mg/L all year
001Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
001Copper, total [as Cu]MO AVG <= 88.3 ug/L all year
001Copper, total [as Cu]DAILY MX <= 209.6 ug/L all year
001Zinc, total [as Zn]MO AVG <= .735 ug/L all year
001Zinc, total [as Zn]DAILY MX <= 1 ug/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
001Mercury, total [as Hg]MO AVG <= 1.52 ug/L all year
001Mercury, total [as Hg]DAILY MX <= 3.05 ug/L all year
003pHINST MIN >= 6 SU all year
003pHINST MAX <= 9 SU all year
003Oil & GreaseDAILY MX <= 15 mg/L all year
003Carbon, tot organic [TOC]DAILY MX <= 50 mg/L 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
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Oil & GreaseDAILY MX <= 15 mg/L all year
004Carbon, tot organic [TOC]DAILY MX <= 50 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
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
005Oil & GreaseMO AVG <= 15 mg/L all year
005Oil & GreaseDAILY MX <= 20 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
006pHINST MIN >= 6 SU all year
006pHINST MAX <= 9 SU 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 plantDAILY MX report only all year
105Copper, total [as Cu]MO AVG <= 76.76 ug/L all year
105Copper, total [as Cu]DAILY MX <= 182.2 ug/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
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
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

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