EPA Air · stack tests by state and year
Air-emissions stack tests in Utah, 2026
- 51Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Utah during 2026; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Utah, 2026
- Salt Lake County 12
- Duchesne County 11
- Davis County 10
- Undetermined County 8
- Emery County 3
- Morgan County 3
Utah, other years
Air-emissions stack tests recorded in Utah, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-10 | AMRIZE SOUTHWEST INC.- ROCKPORT AGGREGATE FACILITY/FORMERLY UTELITE | UTAH, Undetermined, UT | Pass | State |
| 2026-06-26 | AMRIZE CEMENT/FORMERLY HOLCIM (US), INC. — high-priority violation on file | MORGAN, Morgan, UT | Pass | State |
| 2026-06-23 | AMRIZE CEMENT/FORMERLY HOLCIM (US), INC. — high-priority violation on file | MORGAN, Morgan, UT | Pass | State |
| 2026-06-23 | AMRIZE CEMENT/FORMERLY HOLCIM (US), INC. — high-priority violation on file | MORGAN, Morgan, UT | Pass | State |
| 2026-05-28 | WEIR SPECIALTY PUMPS/ENVIROTECH RUBBER | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-05-27 | HEBER LIGHT AND POWER COMPANY | HEBER CITY, Wasatch, UT | Pass | State |
| 2026-05-22 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-05-20 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | Pass | State |
| 2026-05-20 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-05-19 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | Pass | State |
| 2026-05-18 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-05-11 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-04-29 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-04-29 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-04-27 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-04-23 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2026-04-22 | MOUNTAIN WEST PIPELINE - KASTLER (FORMERLY DOMINION ENERGY) | UTAH, Undetermined, UT | Pass | State |
| 2026-04-22 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2026-04-14 | WEIR SPECIALTY PUMPS/ENVIROTECH RUBBER | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-04-13 | WEIR SPECIALTY PUMPS/ENVIROTECH RUBBER | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-04-07 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-04-07 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-25 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2026-03-24 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2026-03-24 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2026-03-18 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2026-02-25 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-25 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-25 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-24 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-24 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-24 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2026-02-10 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2026-02-04 | PACIFICORP CURRANT CREEK POWER PLANT | MONA, Juab, UT | Pass | State |
| 2026-02-03 | PACIFICORP CURRANT CREEK POWER PLANT | MONA, Juab, UT | Pass | State |
| 2026-01-15 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pending | State |
| 2026-01-15 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-01-15 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-01-14 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-01-13 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2026-01-07 | GENPAK | CEDAR CITY, Iron, UT | Pass | State |
| 2026-01-07 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2026-01-06 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.