EPA Air · stack tests by county and year
Air-emissions stack tests in Silver Bow County, Montana, 2026
- 10Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Silver Bow 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 Silver Bow County facility page.
Air-emissions stack tests in Silver Bow County, other years
Air-emissions stack tests recorded in Silver Bow County, Montana, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
| 2026-03-13 | BASIN CREEK POWER SERVICES | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Silver Bow county, MT, for 2026. It lists 10 stack tests recorded in 2026.