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Of the 20 permits in EPA's SIC 4911 in MS, 5 went over a limit between 2025-10-01 and 2026-09-30 (Temperature, water deg. fahrenheit: 2; Flow, in conduit or thru treatment plant: 1; Nitrogen, ammonia total [as N]: 1). 4 are past the expiry date EPA's file holds; 4 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All Mississippi permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| ENTERGY MISSISSIPPI LLC, CHOCTAW COUNTY GENERATING STATION MS0057606 · major · Electric Services | Over a limit 2×: Nitrogen, ammonia total [as N] (2×) | Renewal application due Nov 2, 2027 |
| COOPERATIVE ENERGY, R D MORROW SR GENERATING PLANT MS0028258 · major · Electric Services | Over a limit 1×: Flow, in conduit or thru treatment plant (1×) | Expires Nov 30, 2030 |
| COOPERATIVE ENERGY, SILVER CREEK GENERATING PLANT MS0058033 · Electric Services | Over a limit 1×: Temperature, water deg. fahrenheit (1×) | Permit past the expiry date EPA's file holds |
| MISSISSIPPI POWER COMPANY, PLANT JACK WATSON MS0002925 · major · Electric Services | Over a limit 1×: Temperature, water deg. fahrenheit (1×) | Renewal application overdue |
| MISSISSIPPI POWER COMPANY, PLANT VICTOR J DANIEL MS0024511 · Electric Services | Over a limit 1×: pH (1×) | Renewal application due Apr 3, 2027 |
| CHOCTAW GENERATION LIMITED PARTNERSHIP RED HILLS GENERATION FACILITY MS0053881 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| CLARKSDALE PUBLIC UTILITIES, LEWIS L WILKINS GENERATING STATION MS0001139 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| COOPERATIVE ENERGY, BATESVILLE GENERATING STATION MS0052931 · Electric Services | No value over a limit | Expires Jun 30, 2029 |
| COOPERATIVE ENERGY, SYLVARENA GENERATING PLANT MS0058050 · Electric Services | No value over a limit | Renewal application due Sep 2, 2027 |
| Cooperative Energy, a Mississippi electric cooperative, Moselle Generating Plant MS0021997 · Electric Services | No value over a limit | Expires Nov 30, 2029 |
| ENTERGY MISS INC, GRAND GULF NUCLEAR STATION MS0029521 · major · Electric Services | No value over a limit | Expires Apr 30, 2031 |
| ENTERGY MISSISSIPPI ATTALA PLANT MS0056928 · major · Electric Services | No value over a limit | Expires Oct 31, 2028 |
| ENTERGY MISSISSIPPI INC, BAXTER WILSON PLANT MS0000167 · major · Electric Services | No value over a limit | Expires Oct 31, 2028 |
| ENTERGY MISSISSIPPI LLC, GERALD ANDRUS PLANT MS0001261 · major · Electric Services | No value over a limit | Expires Sep 30, 2029 |
| Entergy Mississippi LLC Delta Blues Advanced Power Station MSP092478 · Electric Services | No value over a limit | Expires May 31, 2030 |
| Entergy Mississippi LLC Delta Blues Advanced Power Station MSP094474 · Electric Services | No value over a limit; 20 required values not reported | Expires May 31, 2030 |
| Entergy Mississippi LLC, Vicksburg Advanced Power Station (VAPS) MSP092485 · Electric Services | No value over a limit | Expires Apr 30, 2031 |
| MISSISSIPPI POWER COMPANY, DAVID M RATCLIFFE MS0061751 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| TENNESSEE VALLEY AUTHORITY, TVA, KEMPER COMBUSTION TURBINE PLANT MS0057622 · Electric Services | No value over a limit | Expires Nov 30, 2028 |
| TVA MAGNOLIA COMBINED CYCLE MS0056995 · major · Electric Services | No value over a limit | Expires Apr 30, 2030 |
The record is EPA's ICIS-NPDES file of 2026-10-15: values filed against each limit between Oct 1, 2025 and Sep 30, 2026. No reports on file may be EPA's gap, not the facility's.
For programs and AI agents: this screen as JSON at /api/v1/permits?state=MS&sic=4911, narrowed with &over_limit=true, ¶meter=phosphorus or &renewal=due; or add https://passage-data.com/mcp as a remote MCP server (tool list_permits). Free, no key. llms.txt
From EPA's ECHO data, not the permit document itself: your permit is the final word. All states