EPA Air · stack tests by state, industry and year
Nonmetallic mineral product manufacturing (NAICS 3279): stack tests in Michigan, 2025
- 3Stack 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 Michigan source whose primary industry code is NAICS 3279. A facility filing more than one industry code is counted under the first one on its record.
Nonmetallic mineral product manufacturing (NAICS 3279) in Michigan, other years
Other industries in Michigan, 2025
- Utilities (NAICS 2211) 113
- Petroleum and coal products manufacturing (NAICS 3241) 37
- Paper manufacturing (NAICS 3221) 21
- Chemical manufacturing (NAICS 3251) 20
- Nonmetallic mineral product manufacturing (NAICS 3273) 17
- Utilities (NAICS 2213) 15
- Waste management and remediation (NAICS 5622) 14
- Pipeline transportation (NAICS 4862) 13
- Utilities (NAICS 2212) 11
- Food manufacturing (NAICS 3113) 11
- Transportation equipment manufacturing (NAICS 3363) 11
- Transportation equipment manufacturing (NAICS 3361) 10
- Primary metal manufacturing (NAICS 3311) 9
- Wood product manufacturing (NAICS 3212) 9
- Educational services (NAICS 6113) 8
- Plastics and rubber products manufacturing (NAICS 3261) 7
- Fabricated metal product manufacturing (NAICS 3328) 7
- Oil and gas extraction (NAICS 2111) 6
- Food manufacturing (NAICS 3112) 5
- Professional, scientific and technical services (NAICS 5413) 5
- Chemical manufacturing (NAICS 3252) 5
- Primary metal manufacturing (NAICS 3315) 4
- Chemical manufacturing (NAICS 3254) 3
- Mining and quarrying (NAICS 2122) 3
Air-emissions stack tests recorded in Michigan, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-11-11 | ERVIN AMASTEEL DIVISION | ADRIAN, Lenawee, MI | Pass | State |
| 2025-10-23 | HEMLOCK SEMICONDUCTOR OPERATIONS LLC | HEMLOCK, Saginaw, MI | Pass | State |
| 2025-10-16 | KNAUF INSULATION, INC. | ALBION, Calhoun, MI | 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.