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Of the 15 permits in EPA's SIC 12 in WY, 1 went over a limit between 2025-10-01 and 2026-09-30 (Solids, total suspended: 1); 1 has no reports in EPA's file for that window. 1 is past the expiry date EPA's file holds; 5 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
| Facility | Last 12 months | Permit |
|---|---|---|
| Peabody Caballo Mining, LLC WY0024031 · Bituminous Coal And Lignite - Surface | Over a limit 1×: Solids, total suspended (1×) | Expires Dec 31, 2028 |
| Bridger Coal Company WY0030350 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Apr 30, 2030 |
| Buckskin Mining Company WY0028479 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Jul 31, 2030 |
| Eagle Specialty Materials, LLC WY0003514 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Oct 3, 2027 |
| Eagle Specialty Materials, LLC WY0026018 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Dec 31, 2028 |
| Kemmerer Operations, LLC WY0000051 · Bituminous Coal And Lignite - Surface | No value over a limit; 1 required values not reported | Expires Dec 31, 2030 |
| Navajo Transitional Energy Company, LLC WY0023761 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Mar 31, 2031 |
| Navajo Transitional Energy Company, LLC WY0030198 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application overdue |
| Peabody Caballo Mining, LLC WY0025755 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Jan 2, 2028 |
| Peabody Powder River Mining, LLC WY0028177 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Dec 31, 2028 |
| Spring Gulch Coal Company WY0030317 · Bituminous Coal And Lignite - Surface | No reports in EPA's file for the window | Permit past the expiry date EPA's file holds |
| Thunder Basin Coal Company, LLC WY0024091 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires May 31, 2030 |
| Thunder Basin Coal Company, LLC WY0028193 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires May 31, 2030 |
| Western Fuels-Wyoming, Inc. WY0032964 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Nov 1, 2026 |
| Wyodak Resources Development Corporation WY0001261 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Feb 1, 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=WY&sic=12, 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