EPA Air · stack tests by county and year
Air-emissions stack tests in Emery County, Utah, 2026
- 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 Emery County, Utah 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 Emery County facility page.
Air-emissions stack tests in Emery County, other years
Air-emissions stack tests recorded in Emery County, Utah, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-04-23 | PACIFICORP HUNTINGTON | Pass | State |
| 2026-03-25 | PACIFICORP HUNTINGTON | Pass | State |
| 2026-03-24 | PACIFICORP HUNTINGTON | 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 Emery county, UT, for 2026. The stack tests recorded in 2026 total 3.