EPA Air · inspections by county and year
Air-emissions inspections in Rosebud County, Montana, 2026
- 3Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row below is one inspection recorded against a source in Rosebud County, Montana during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Rosebud County facility page.
Rosebud County, Montana, 2026
- Stack tests 16
Air-emissions inspections in Rosebud County, other years
Air-emissions inspections recorded in Rosebud County, Montana, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-08-10 | COLSTRIP STEAM ELECTRIC STATION | FCE On-Site | State |
| 2026-07-24 | COLSTRIP ENERGY LTD PARTNERSHIP | FCE On-Site | State |
| 2026-03-23 | WILLISTON BASIN - HATHAWAY STATION | FCE Off-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.