EPA Air · stack tests by state, industry and year
Nonmetallic mineral product manufacturing (NAICS 3279): stack tests in Iowa, 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 Iowa 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.
Other industries in Iowa, 2025
- Chemical manufacturing (NAICS 3251) 171
- Utilities (NAICS 2211) 110
- Food manufacturing (NAICS 3112) 49
- Primary metal manufacturing (NAICS 3311) 12
- Utilities (NAICS 2213) 11
- Chemical manufacturing (NAICS 3259) 10
- Primary metal manufacturing (NAICS 3313) 9
- Pipeline transportation (NAICS 4862) 9
- Food manufacturing (NAICS 3111) 9
- Data processing and hosting (NAICS 5182) 9
- Nonmetallic mineral product manufacturing (NAICS 3274) 8
- Primary metal manufacturing (NAICS 3315) 8
- Chemical manufacturing (NAICS 3253) 8
- Publishing industries (NAICS 5112) 6
- Machinery manufacturing (NAICS 3331) 6
- Professional, scientific and technical services (NAICS 5419) 6
- Nonmetallic mineral product manufacturing (NAICS 3273) 6
- Hospitals (NAICS 6221) 5
- Mining and quarrying (NAICS 2123) 5
- Agriculture and forestry support (NAICS 1151) 5
- Food manufacturing (NAICS 3116) 4
- Petroleum and coal products manufacturing (NAICS 3241) 3
- Justice, public order and safety (NAICS 9221) 3
Air-emissions stack tests recorded in Iowa, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-18 | CERNE CALCIUM CARBONATE LLC | FORT DODGE, Webster, IA | Pass | State |
| 2025-12-16 | CERNE CALCIUM CARBONATE LLC | FORT DODGE, Webster, IA | Pass | State |
| 2025-12-16 | CERNE CALCIUM CARBONATE LLC | FORT DODGE, Webster, IA | 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.