EPA Air · stack tests by county and year
Air-emissions stack tests in Duchesne County, Utah, 2026
- 22Stack 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 Duchesne 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 Duchesne County facility page.
Duchesne County, Utah, 2026
Air-emissions stack tests in Duchesne County, other years
Air-emissions stack tests recorded in Duchesne County, Utah, 2026
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 Duchesne county, UT, in 2026. It lists 11 stack tests recorded in 2026.