EPA Air · stack tests by state, industry and year
NAICS 9999: stack tests in Utah, 2025
- 31Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Utah source whose primary industry code is NAICS 9999. A facility filing more than one industry code is counted under the first one on its record.
NAICS 9999 in Utah, other years
Other industries in Utah, 2025
- Oil and gas extraction (NAICS 2111) 36
- Utilities (NAICS 2211) 25
- Petroleum and coal products manufacturing (NAICS 3241) 23
- Nonmetallic mineral product manufacturing (NAICS 3273) 16
- Utilities (NAICS 2212) 10
- Waste management and remediation (NAICS 5622) 7
- Primary metal manufacturing (NAICS 3314) 6
- Mining and quarrying (NAICS 2123) 6
- Educational services (NAICS 6113) 5
- Primary metal manufacturing (NAICS 3311) 3
Air-emissions stack tests recorded in Utah, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-19 | NORTHRUP GRUMMAN SYSTEMS - PROMONTORY (FORMERLY ATK) | PROMONTORY (HISTORICAL), Box Elder, UT | Pass | State |
| 2025-12-18 | NORTHRUP GRUMMAN SYSTEMS - PROMONTORY (FORMERLY ATK) | PROMONTORY (HISTORICAL), Box Elder, UT | Pass | State |
| 2025-11-05 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-11-04 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-11-04 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-31 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-31 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-30 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-30 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-30 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-29 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-28 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-28 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-28 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-27 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-27 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-24 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-23 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-22 | COMPASS MINERALS | UTAH, Undetermined, UT | Pass | State |
| 2025-10-21 | MURRAY CITY POWER DEPARTMENT | MURRAY, Salt Lake, UT | Pass | State |
| 2025-07-29 | MURRAY CITY POWER DEPARTMENT | MURRAY, 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 |
| 2025-03-27 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, UT | Pass | State |
| 2025-03-25 | PACIFICORP HUNTINGTON | HUNTINGTON, Emery, 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 |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.