EPA Air · stack tests by state, industry and year
Mining and quarrying (NAICS 2123): stack tests in Utah, 2025
- 6Stack 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 2123. A facility filing more than one industry code is counted under the first one on its record.
Mining and quarrying (NAICS 2123) in Utah, other years
Other industries in Utah, 2025
- Oil and gas extraction (NAICS 2111) 36
- NAICS 9999 31
- 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
- Educational services (NAICS 6113) 5
- Primary metal manufacturing (NAICS 3311) 3
Air-emissions stack tests recorded in Utah, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-08-14 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2025-08-13 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, UT | Pass | State |
| 2025-08-13 | GRAYMONT WESTERN (CONTINENTAL LIME) | DELTA, Millard, 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 |
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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register for NAICS industry 2123 in UT, listing stack tests recorded in 2025. The page lists 6 stack tests recorded in 2025.