Clean Water Act discharge permit · NPDES MS0001261
ENTERGY MISS. LLC, GERALD ANDRUS PLANT, Greenville, MS: NPDES MS0001261 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 14Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
ENTERGY MISS. LLC, GERALD ANDRUS PLANT, held by ENTERGY MISSISSIPPI LLC, GERALD ANDRUS PLANT, holds NPDES permit MS0001261, which discharges to Mississippi River. EPA’s file records it issued April 13, 2018 and expiring March 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ENTERGY MISS. LLC, GERALD ANDRUS PLANT |
|---|---|
| Permittee as filed | ENTERGY MISSISSIPPI LLC, GERALD ANDRUS PLANT |
| NPDES ID | MS0001261 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 13, 2018 |
| Expiration date | March 31, 2023 |
| Issuing agency | MDEQ |
| Address | Greenville, MS 38701 |
| Receiving water | MISSISSIPPI RIVER |
| Subwatershed | 80301000100 (HUC 080301000100) |
| Other EPA IDs (FRS) | RCRA handler MSD070767082; ICIS-AIR source MS0000002815100048 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 16Pollutants on file
- 14Under a numeric limit
- 15With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 15 | 7 | December 31, 2019 | 73% over the limit |
| E. coli | 2 | 4 | 4 | March 31, 2021 | 1,479% over the limit |
| Iron, total recoverable | 2 | 4 | 2 | January 31, 2010 | 20% over the limit |
| Chlorine, total residual [dsg. time] | 0 | 3 | 1 | July 31, 2004 | 33% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 8 | 0 | ||
| Oil & Grease | 4 | 8 | 0 | ||
| pH | 8 | 6 | 0 | ||
| Chlorine, total residual | 4 | 6 | 0 | ||
| Chlorine, free available | 2 | 4 | 0 | ||
| pH range excursions, > 60 minutes | 2 | 3 | 0 | ||
| pH range excursions, monthly total accum | 2 | 3 | 0 | ||
| Copper, total recoverable | 2 | 2 | 0 | ||
| Temp. diff. between intake and discharge | 2 | 2 | 0 | ||
| LC50 Static Renewal 48Hr Acute Ceriodaphnia dubia | 2 | 2 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 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 MS0001261.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, MS0001261.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 MS0001261 there.
Nearby on the register
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- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.