Clean Water Act discharge permit · NPDES MS0021997
COOPERATIVE ENERGY, MOSELLE GENERATING PLANT, Moselle, MS: NPDES MS0021997 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
COOPERATIVE ENERGY, MOSELLE GENERATING PLANT, held by Cooperative Energy, a Mississippi electric cooperative, Moselle Generating Plant, holds NPDES permit MS0021997, which discharges to Leaf River. EPA’s file records it issued May 14, 2019 and expiring April 30, 2024. 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 | COOPERATIVE ENERGY, MOSELLE GENERATING PLANT |
|---|---|
| Permittee as filed | Cooperative Energy, a Mississippi electric cooperative, Moselle Generating Plant |
| NPDES ID | MS0021997 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | May 14, 2019 |
| Expiration date | April 30, 2024 |
| Issuing agency | MDEQ |
| Address | Moselle, MS 39459 |
| Receiving water | LEAF RIVER |
| Subwatershed | Thomas Creek-Leaf River (HUC 031700040904) |
| NAICS | 221112 – Fossil Fuel Electric Power Generation |
| SIC | 4911 – Electric Services |
| Other EPA IDs (FRS) | RCRA handler MSD000792614; ICIS-AIR source MS0000002806700035 |
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
- 12Pollutants on file
- 11Under a numeric limit
- 8With a violation of any kind
- 2With 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 |
|---|---|---|---|---|---|
| Zinc, total recoverable | 2 | 1 | 1 | March 31, 2008 | 3% over the limit |
| Chlorine, free available | 2 | 1 | 1 | August 31, 2003 | 650% over the limit |
| Solids, total suspended | 8 | 12 | 0 | ||
| Copper, total recoverable | 6 | 12 | 0 | ||
| Iron, total recoverable | 4 | 12 | 0 | ||
| Oil & grease [freon extr.-IR meth] tot, RC | 0 | 12 | 0 | ||
| pH | 6 | 6 | 0 | ||
| Flow, in conduit or thru treatment plant | 6 | 6 | 0 | ||
| Oil & Grease | 8 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 4 | 0 | 0 | ||
| Chromium, total recoverable | 2 | 0 | 0 | ||
| Chlorination duration | 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 MS0021997.
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, MS0021997.
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 MS0021997 there.
Nearby on the register
- Discharge permits in Moselle
- Every permit record in Moselle, A to Z
- Discharge permits in Mississippi
- Every permit record in Mississippi, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.