EPA Air · stack tests by state and year
Air-emissions stack tests in Utah, 2025
- 175Stack 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 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Utah, 2025
- Undetermined County 51
- Salt Lake County 30
- Duchesne County 29
- Davis County 17
- Utah County 14
- Millard County 11
- Box Elder County 5
- Morgan County 5
- Carbon County 5
- Emery County 4
Utah, other years
Air-emissions stack tests recorded in Utah, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-06-19 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2025-06-18 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2025-06-18 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2025-06-17 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2025-06-17 | INTERSTATE BRICK | WEST JORDAN, Salt Lake, UT | Pass | State |
| 2025-06-13 | ASH GROVE CEMENT | UTAH, Undetermined, UT | Pass | State |
| 2025-06-12 | ASH GROVE CEMENT | UTAH, Undetermined, UT | Pass | State |
| 2025-06-12 | ASH GROVE CEMENT | UTAH, Undetermined, UT | Pass | State |
| 2025-06-12 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2025-06-11 | MOUNTAIN WEST PIPELINE - KASTLER (FORMERLY DOMINION ENERGY) | UTAH, Undetermined, UT | Pass | State |
| 2025-06-11 | ASH GROVE CEMENT | UTAH, Undetermined, UT | Pass | State |
| 2025-06-11 | ASH GROVE CEMENT | UTAH, Undetermined, UT | Pass | State |
| 2025-06-11 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2025-06-03 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-05-28 | SUNNYSIDE COGENERATION | SUNNYSIDE, Carbon, UT | Pass | State |
| 2025-05-21 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2025-05-21 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2025-05-20 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2025-05-20 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-05-06 | NORTHWEST PIPELINE - CISCO | CISCO, Grand, UT | Pass | State |
| 2025-04-29 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2025-04-28 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2025-04-25 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2025-04-22 | MCWANE DUCTILE | PROVO, Utah, UT | Pass | State |
| 2025-04-18 | ST. GEORGE POWER MILLCREEK/RED ROCK | UTAH, Undetermined, UT | Pass | State |
| 2025-04-16 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-16 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2025-04-15 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-15 | NYDIG DFM LLC - DUCHESNE DATA POWER STATION (FORMERLY CRUSOE ENERGY SYSTEMS) | UPALCO, Duchesne, UT | Pass | State |
| 2025-04-11 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-10 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-09 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-09 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-09 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-08 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-08 | HF SINCLAIR WOODS CROSS REFINERY (FORMERLY HOLLY) | WOODS CROSS, Davis, UT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-08 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-02 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-02 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-04-01 | KINDER MORGAN LLC - MAIN GAS PLANT | ALTAMONT, Duchesne, UT | Pass | State |
| 2025-03-27 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2025-03-25 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-19 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-18 | IRONHORSE COMPLEX | UTAH, Undetermined, UT | Pass | U.S. EPA |
| 2025-03-18 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-11 | WAPITI OPERATING LLC | UTAH, Undetermined, UT | Pass | State |
| 2025-03-05 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | N/A | State |
| 2025-03-05 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | N/A | State |
| 2025-03-05 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | N/A | State |
| 2025-03-04 | BIG WEST OIL | NORTH SALT LAKE, Davis, UT | N/A | State |
| 2025-02-25 | KENNECOTT MAIN STACK, SMELTER AND | BINGHAM CANYON, Salt Lake, UT | Pass | State |
| 2025-02-18 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-02-17 | TESORO WEST COAST/FORMER BP AMOCO | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-16 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-15 | HILL AIR FORCE BASE | CLEARFIELD, Davis, UT | Pass | State |
| 2025-01-15 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-15 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-15 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2025-01-15 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2025-01-14 | HILL AIR FORCE BASE | CLEARFIELD, Davis, UT | Pass | State |
| 2025-01-14 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-14 | TRANS-JORDAN CITIES LANDFILL | SOUTH JORDAN, Salt Lake, UT | Pass | State |
| 2025-01-13 | UNIVERSITY OF UTAH | SALT LAKE CITY, Salt Lake, UT | Pass | State |
| 2025-01-08 | PACIFICORP CURRANT CREEK POWER PLANT | MONA, Juab, UT | Pass | State |
| 2025-01-07 | PACIFICORP CURRANT CREEK POWER PLANT | MONA, Juab, UT | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.