EPA Air · stack tests by county and year
Air-emissions stack tests in Canyon County, Idaho, 2025
- 3Stack 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 Canyon County, Idaho during 2025. 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 Canyon County facility page.
Canyon County, Idaho, 2025
- Inspections 23
Air-emissions stack tests in Canyon County, other years
Air-emissions stack tests recorded in Canyon County, Idaho, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-02-27 | J R SIMPLOT - CALDWELL (NEW) | Pass | State |
| 2025-02-26 | J R SIMPLOT - CALDWELL (NEW) | Pass | State |
| 2025-01-09 | RIVER ROCK SAND & GRAVEL LLC 00162 | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.