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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Undetermined county, UT, for 2025. It lists 51 stack tests recorded in 2025.