Clean Water Act discharge permit · NPDES LA0007439
ENTERGY LOUISIANA LLC - WATERFORD 1 & 2 ELECTRIC GENERATING PLANT, Killona, LA: NPDES LA0007439 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 24Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ENTERGY LOUISIANA LLC - WATERFORD 1 & 2 ELECTRIC GENERATING PLANT, held by Entergy Louisiana, LLC- Waterford 1 and 2 Generating Plant, holds NPDES permit LA0007439, which discharges to Forty Arpent Canal/Mississippi Rive. EPA’s file records it issued August 16, 2023 and expiring October 1, 2028. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ENTERGY LOUISIANA LLC - WATERFORD 1 & 2 ELECTRIC GENERATING PLANT |
|---|---|
| Permittee as filed | Entergy Louisiana, LLC- Waterford 1 and 2 Generating Plant |
| NPDES ID | LA0007439 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 16, 2023 |
| Expiration date | October 1, 2028 |
| Address | Killona, LA 70057 |
| Receiving water | FORTY ARPENT CANAL/MISSISSIPPI RIVE |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Claiborne Island (HUC 080701000105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 24Under a numeric limit
- 16With a violation of any kind
- 0With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 34 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 34 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 32 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 30 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 30 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 28 | 0 | ||
| Carbon, tot organic [TOC] | 7 | 17 | 0 | ||
| Flow, in conduit or thru treatment plant | 22 | 13 | 0 | ||
| pH | 16 | 8 | 0 | ||
| Solids, total suspended | 14 | 8 | 0 | ||
| Oil and grease | 14 | 8 | 0 | ||
| Copper, total [as Cu] | 2 | 2 | 0 | ||
| Iron, total [as Fe] | 2 | 2 | 0 | ||
| Lead, total [as Pb] | 1 | 1 | 0 | ||
| Benzene, ethylbenzene, toluene, xylene combination | 1 | 1 | 0 | ||
| Benzene | 1 | 1 | 0 | ||
| Oil & Grease | 14 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 0 | 0 | ||
| Solids, total suspended, non-algal | 4 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| BTEX | 1 | 0 | 0 | ||
| Chlorine, total residual | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES LA0007439.
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LA0007439.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LA0007439 there.
Nearby on the register
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- Every permit record in Killona, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.