EPA Air · stack tests by county and year
Air-emissions stack tests in Undetermined County, Utah, 2025
- 51Stack 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 Undetermined County, Utah 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 Undetermined County facility page.
Undetermined County, Utah, 2025
- Inspections 25
Air-emissions stack tests in Undetermined County, other years
Air-emissions stack tests recorded in Undetermined County, Utah, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-18 | CHEVRON USA | Pass | State |
| 2025-12-18 | CHEVRON USA | Pass | State |
| 2025-12-09 | PACIFICORP HUNTER | Pass | State |
| 2025-12-09 | PACIFICORP HUNTER | Pass | State |
| 2025-12-04 | PACIFICORP HUNTER | Pass | State |
| 2025-12-03 | PACIFICORP HUNTER | Pass | State |
| 2025-11-13 | PACIFICORP HUNTER | Pass | State |
| 2025-11-05 | COMPASS MINERALS | Pass | State |
| 2025-11-04 | COMPASS MINERALS | Pass | State |
| 2025-11-04 | COMPASS MINERALS | Pass | State |
| 2025-10-31 | COMPASS MINERALS | Pass | State |
| 2025-10-31 | COMPASS MINERALS | Pass | State |
| 2025-10-30 | COMPASS MINERALS | Pass | State |
| 2025-10-30 | COMPASS MINERALS | Pass | State |
| 2025-10-30 | COMPASS MINERALS | Pass | State |
| 2025-10-29 | COMPASS MINERALS | Pass | State |
| 2025-10-28 | COMPASS MINERALS | Pass | State |
| 2025-10-28 | COMPASS MINERALS | Pass | State |
| 2025-10-28 | COMPASS MINERALS | Pass | State |
| 2025-10-27 | COMPASS MINERALS | Pass | State |
| 2025-10-27 | COMPASS MINERALS | Pass | State |
| 2025-10-24 | COMPASS MINERALS | Pass | State |
| 2025-10-24 | COMPASS MINERALS | Pass | State |
| 2025-10-24 | COMPASS MINERALS | Pass | State |
| 2025-10-23 | COMPASS MINERALS | Pass | State |
| 2025-10-23 | COMPASS MINERALS | Pass | State |
| 2025-10-23 | COMPASS MINERALS | Pass | State |
| 2025-10-22 | PACIFICORP HUNTER | Pass | State |
| 2025-10-22 | COMPASS MINERALS | Pass | State |
| 2025-08-22 | CHEVRON USA | Pass | State |
| 2025-08-22 | CHEVRON USA | Pass | State |
| 2025-08-21 | CHEVRON USA | Pass | State |
| 2025-08-19 | CHEVRON USA | Pass | State |
| 2025-08-15 | CHEVRON USA | Pass | State |
| 2025-08-11 | CHEVRON USA | Pass | State |
| 2025-06-13 | ASH GROVE CEMENT | Pass | State |
| 2025-06-12 | ASH GROVE CEMENT | Pass | State |
| 2025-06-12 | ASH GROVE CEMENT | Pass | State |
| 2025-06-11 | MOUNTAIN WEST PIPELINE - KASTLER (FORMERLY DOMINION ENERGY) | Pass | State |
| 2025-06-11 | ASH GROVE CEMENT | Pass | State |
| 2025-06-11 | ASH GROVE CEMENT | Pass | State |
| 2025-04-18 | ST. GEORGE POWER MILLCREEK/RED ROCK | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-18 | IRONHORSE COMPLEX | Pass | U.S. EPA |
| 2025-03-18 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.