Clean Water Act discharge permit · NPDES MS0057606
ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION, French Camp, MS: NPDES MS0057606 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 11Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION holds NPDES permit MS0057606, which discharges to By Open Ditch Into Poplar Creek. EPA’s file records it issued August 15, 2018 and expiring July 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION |
|---|---|
| Permittee as filed | ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION |
| NPDES ID | MS0057606 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 15, 2018 |
| Expiration date | July 31, 2023 |
| Issuing agency | MDEQ |
| Address | French Camp, MS 39745 |
| Receiving water | BY OPEN DITCH INTO POPLAR CREEK |
| Subwatershed | Elkins Creek-Poplar Creek (HUC 080602010401) |
| NAICS | 221112 – Fossil Fuel Electric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler MSR000101055; ICIS-AIR source MS0000002801900018 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 14Pollutants on file
- 11Under a numeric limit
- 12With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 4 | 13 | 9 | July 31, 2026 | 145% over the limit |
| Solids, total suspended | 6 | 13 | 5 | July 31, 2008 | 501% over the limit |
| Oil & grease [freon extr.-IR meth] tot, RC | 0 | 7 | 3 | April 30, 2005 | 204% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 3 | 3 | June 30, 2008 | 590% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 4 | 2 | 2 | April 30, 2025 | 144% over the limit |
| Coliform, fecal general | 0 | 2 | 2 | June 30, 2003 | 200% over the limit |
| Oil & Grease | 6 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 2 | 0 | ||
| pH | 4 | 2 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 2 | 0 | ||
| Chlorine, total residual | 2 | 2 | 0 | ||
| Oxygen, dissolved [DO] | 1 | 2 | 0 | ||
| Solids, total dissolved | 4 | 0 | 0 | ||
| E. coli | 2 | 0 | 0 |
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 MS0057606.
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.
Watch this permit
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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 MS0057606 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.