EPA Air · inspections by county and year
Air-emissions inspections in Cascade County, Montana, 2026
- 4Inspections
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 Cascade 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 Cascade County facility page.
Cascade County, Montana, 2026
- Stack tests 11
Air-emissions inspections in Cascade County, other years
Air-emissions inspections recorded in Cascade County, Montana, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-28 | CALUMET MONTANA REFINING — high-priority violation on file | PCE Off-Site | State |
| 2026-07-14 | GREAT FALLS TERMINAL | FCE On-Site | State |
| 2026-05-28 | MT WASTE SYSTEMS - HIGH PLAINS LANDFILL | FCE On-Site | State |
| 2026-04-30 | MONTANA AIR NATIONAL GUARD | FCE On-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.