Entergy Louisiana, LLC- Perryville Generating Station

NPDES permit LA0113557 · Major NON-POTW · administratively continued, expires 2026-01-31 · 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.

This permit expired on 2026-01-31 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

2values over a limit
0required values missing, on 0 form(s)
0of 89 forms filed late

Last period with anything received: 2026-08-31. Most often over: Whole Effluent Toxicity [WET] - C. dubia (2).

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 (83)

OutfallParameterStatisticLimitMonths
001pHINST MIN >= 6 SU all year
001pHINST MIN >= 6 SU all year
001pHINST MAX <= 9 SU all year
001pHINST MAX <= 9 SU all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseMO AVG <= 15 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Oil & GreaseDAILY MX <= 20 mg/L all year
001Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
001Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
001Flow, in conduit or thru treatment plantMO AVG 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
001Flow, in conduit or thru treatment plantDAILY MX report only all year
002Temperature, water deg. fahrenheitINST MIN report only all year
002Temperature, water deg. fahrenheitINST MAX <= 96 deg F all year
002pHINST MIN >= 6 SU all year
002pHINST MAX <= 9 SU all year
002Oil & GreaseMO AVG <= 15 mg/L all year
002Oil & GreaseDAILY MX <= 20 mg/L all year
002Carbon, tot organic [TOC]DAILY MX <= 50 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
002Whole Effluent Toxicity [WET] - C. dubia7 DA MIN >= 90 % all year
002Whole Effluent Toxicity [WET] - C. dubiaMO AV MN >= 90 % all year
002Whole Effluent Toxicity [WET] - P. promelas7 DA MIN >= 90 % all year
002Whole Effluent Toxicity [WET] - P. promelasMO AV MN >= 90 % all year
002Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
002Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
002Pass/Fail Static Renewal 7Day Chronic Pimephales promelas7 DA MIN report only all year
002Pass/Fail Static Renewal 7Day Chronic Pimephales promelasMO AV MN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
002Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
002NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia7 DA MIN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubiaMO AV MN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas7 DA MIN report only all year
002NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelasMO AV MN report only all year
002Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubiaMAXIMUM report only all year
002Coef Of Var Static Renewal 7Day Chronic Pimephales promelasMAXIMUM report only all year
004pHINST MIN >= 6 SU all year
004pHINST MAX <= 9 SU all year
004Oil & GreaseMO AVG <= 15 mg/L all year
004Oil & GreaseDAILY MX <= 20 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
005Flow, in conduit or thru treatment plantMO AVG report only all year
005Flow, in conduit or thru treatment plantDAILY MX report only all year
101pHINST MIN >= 6 SU all year
101pHINST MAX <= 9 SU all year
101Solids, total suspendedDAILY MX <= 90 mg/L all year
101Solids, total suspendedDAILY MX <= 90 mg/L all year
101Oil & GreaseDAILY MX <= 15 mg/L all year
101Carbon, tot organic [TOC]DAILY MX <= 50 mg/L all year
101Lead, total [as Pb]DAILY MX <= 50 ug/L all year
101BenzeneDAILY MX <= 50 ug/L all year
101BTEXDAILY MX <= 250 ug/L all year
101Flow, in conduit or thru treatment plantMO AVG report only all year
101Flow, in conduit or thru treatment plantDAILY MX report only all year
102Chromium, total [as Cr]MO AVG <= .2 mg/L all year
102Chromium, total [as Cr]DAILY MX <= .2 mg/L all year
102Zinc, total [as Zn]MO AVG <= .239 mg/L all year
102Zinc, total [as Zn]DAILY MX <= .568 mg/L 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
102Chlorine, free availableMO AVG <= .2 mg/L all year
102Chlorine, free availableDAILY MX <= .5 mg/L all year
202Solids, total suspendedMO AVG <= 30 mg/L all year
202Solids, total suspendedDAILY MX <= 100 mg/L all year
202Oil & GreaseMO AVG <= 15 mg/L all year
202Oil & GreaseDAILY MX <= 20 mg/L all year
202Flow, in conduit or thru treatment plantMO AVG report only all year
202Flow, 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