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Of the 9 permits in EPA's SIC 12 in MT, 0 went over a limit between 2025-10-01 and 2026-09-30. 6 are past the expiry date EPA's file holds; 2 have a renewal application overdue or due within 18 months. EPA's file of 2026-10-15.
| Facility | Last 12 months | Permit |
|---|---|---|
| DECKER COAL COMPANY MT0000892 · major · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| DECKER COAL COMPANY MT0024210 · major · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| NAVAJO TRANSITIONAL ENERGY COMPANY LLC MT0024619 · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| SIGNAL PEAK ENERGY LLC MT0028983 · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| WESTMORELAND SAVAGE CORP MT0023604 · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| Westmoreland Absaloka Mining LLC MT0021229 · Bituminous Coal And Lignite - Surface | No value over a limit | Expires Jun 30, 2030 |
| Westmoreland Mining LLC MT0030783 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Apr 3, 2028 |
| Westmoreland Rosebud Mining LLC MT0023965 · major · Bituminous Coal And Lignite - Surface | No value over a limit | Permit past the expiry date EPA's file holds |
| Westmoreland Rosebud Mining LLC MT0032042 · Bituminous Coal And Lignite - Surface | No value over a limit | Renewal application due Apr 3, 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=MT&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