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Of the 25 permits in EPA's SIC 4911 in OK, 4 went over a limit between 2025-10-01 and 2026-09-30 (Solids, total suspended: 2; Copper, total [as Cu]: 1; Iron, total [as Fe]: 1). 2 are past the expiry date EPA's file holds; 13 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
All Oklahoma permitsAll states
| Facility | Last 12 months | Permit |
|---|---|---|
| GRDA-Chouteau OK0035149 · major · Electric Services | Over a limit 11×: pH (4×), Iron, total [as Fe] (4×), Copper, total [as Cu] (2×) | Expires Sep 30, 2030 |
| Western Farmers Electric Co-Anadarko OK0000639 · major · Electric Services | Over a limit 4×: Solids, total suspended (4×) | Renewal application due Jan 2, 2028 |
| OG&E River Valley Generating Station OK0040169 · Electric Services | Over a limit 1×: Solids, total suspended (1×) | Expires Oct 31, 2028 |
| Western Farmers Electric Co.-Mooreland OK0000647 · Electric Services | Over a limit 1×: Oil and grease, hexane extr method (1×) | Renewal application due Nov 1, 2026 |
| AECI - Chouteau Power Plant OK0043907 · major · Electric Services | No value over a limit | Expires Jan 31, 2029 |
| Associated Electric Coop.-Ripley Energy Center OK1000128 · Electric Services | No value over a limit | Expires Sep 30, 2030 |
| Grand River Dam Auth -Salina OK0041327 · Electric Services | No value over a limit | Renewal application due Apr 3, 2027 |
| Grand River Dam Auth-Kerr Dam OK0041319 · Electric Services | No value over a limit | Renewal application due Dec 3, 2027 |
| Grand River Dam Auth-Pensacola OK0041289 · Electric Services | No value over a limit | Renewal application due Jul 4, 2027 |
| Kiowa Power Partners (KPP)-KIA OK0044083 · major · Electric Services | No value over a limit | Expires Jul 31, 2029 |
| OG&E -Sooner Generating Station OK0035068 · major · Electric Services | No value over a limit; 4 required values not reported | Renewal application overdue |
| OG&E-Horseshoe # 9 &10 OK0043966 · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| OG&E-Horseshoe Lake OK0000442 · major · Electric Services | No value over a limit; 33 required values not reported | Renewal application overdue |
| OG&E-McClain Generating Station OK0045250 · major · Electric Services | No value over a limit | Permit past the expiry date EPA's file holds |
| OG&E-Muskogee 4, 5, & 6 OK0034657 · major · Electric Services | No value over a limit | Expires Oct 31, 2028 |
| OG&E-Mustang OK0000477 · Electric Services | No value over a limit | Renewal application due Mar 4, 2028 |
| OG&E-Seminole Generating Station OK0000451 · major · Electric Services | No value over a limit | Expires Jan 31, 2030 |
| Oneta Power, LLC OK0044181 · major · Electric Services | No value over a limit | Expires Apr 30, 2029 |
| Public Service CO-Southwestern OK0000094 · major · Electric Services | No value over a limit | Renewal application overdue |
| Public Service Co-Riverside OK0002429 · major · Electric Services | No value over a limit | Renewal application overdue |
| Public Service Co. of Oklahoma - NE Station OK0034380 · major · Electric Services | No value over a limit; 6 required values not reported | Renewal application overdue |
| Public Service Co.- Tulsa Power OK0000108 · Electric Services | No value over a limit | Expires Jun 30, 2031 |
| Public Service Co.-Comanche OK0002682 · major · Electric Services | No value over a limit | Expires Jul 31, 2030 |
| Public Service Company of Oklahoma OK0043869 · major · Electric Services | No value over a limit | Renewal application overdue |
| Western Farmers Electric Co.-Hugo Plant OK0035327 · Electric Services | No value over a limit | Renewal application due Jul 4, 2027 |
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=OK&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