Clean Water Act discharge permit · NPDES MSP094474
ENTERGY MISSISSIPPI LLC DELTA BLUES ADVANCED POWER STATION, Greenville, MS: NPDES MSP094474 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 1Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ENTERGY MISSISSIPPI LLC DELTA BLUES ADVANCED POWER STATION, held by Entergy Mississippi LLC Delta Blues Advanced Power Station, holds NPDES permit MSP094474, which discharges to Greenville Potw Ms0020184. EPA’s file records it issued June 2, 2025 and expiring May 31, 2030. 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 MISSISSIPPI LLC DELTA BLUES ADVANCED POWER STATION |
|---|---|
| Permittee as filed | Entergy Mississippi LLC Delta Blues Advanced Power Station |
| NPDES ID | MSP094474 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial pretreatment |
| Issued | June 2, 2025 |
| Expiration date | May 31, 2030 |
| Issuing agency | MDEQ |
| Address | Greenville, MS 38701 |
| Receiving water | Greenville POTW MS0020184 |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 1Pollutants on file
- 1Under a numeric limit
- 1With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 2 | 26 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MSP094474.
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 MSP094474.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet 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 MSP094474 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.