EPA Air · stack tests by state, industry and year
Mining and quarrying (NAICS 2122): stack tests in Arizona, 2026
- 7Stack 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 2026 at a Arizona source whose primary industry code is NAICS 2122. A facility filing more than one industry code is counted under the first one on its record.
Mining and quarrying (NAICS 2122) in Arizona, other years
Other industries in Arizona, 2026
- Utilities (NAICS 2211) 24
- Pipeline transportation (NAICS 4862) 10
- Computer and electronic product manufacturing (NAICS 3344) 7
- Nonmetallic mineral product manufacturing (NAICS 3273) 5
- Merchant wholesalers, nondurable goods (NAICS 4247) 3
- Primary metal manufacturing (NAICS 3311) 3
Air-emissions stack tests recorded in Arizona, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-06-03 | GOLD ROAD MINE | OATMAN, Mohave, AZ | Pass | State |
| 2026-05-11 | FREEPORT-MCMORAN - MORENCI | MORENCI, Greenlee, AZ | Pass | State |
| 2026-04-02 | FREEPORT-MCMORAN - MORENCI | MORENCI, Greenlee, AZ | Pass | State |
| 2026-03-26 | BAGDAD MINE | BAGDAD, Yavapai, AZ | Pass | State |
| 2026-03-11 | FREEPORT-MCMORAN - SAFFORD OPERATIONS | SAFFORD, Graham, AZ | Pass | State |
| 2026-03-04 | FREEPORT-MCMORAN - MORENCI | MORENCI, Greenlee, AZ | Pass | State |
| 2026-01-12 | MINERAL PARK MINE | GOLDEN VALLEY, Mohave, AZ | 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.