EPA Air · stack tests by state, industry and year
Chemical manufacturing (NAICS 3251): stack tests in Wisconsin, 2026
- 9Stack 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 Wisconsin source whose primary industry code is NAICS 3251. A facility filing more than one industry code is counted under the first one on its record.
Chemical manufacturing (NAICS 3251) in Wisconsin, other years
Other industries in Wisconsin, 2026
- Utilities (NAICS 2211) 51
- Paper manufacturing (NAICS 3221) 11
- Petroleum and coal products manufacturing (NAICS 3241) 8
- Primary metal manufacturing (NAICS 3315) 6
- Waste management and remediation (NAICS 5622) 6
- Utilities (NAICS 2213) 4
- Plastics and rubber products manufacturing (NAICS 3261) 4
- Educational services (NAICS 6113) 3
- Nonmetallic mineral product manufacturing (NAICS 3274) 3
Air-emissions stack tests recorded in Wisconsin, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-07-21 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | Pass | State |
| 2026-06-24 | HYDRITE CHEMICAL CO. — high-priority violation on file | COTTAGE GROVE, Dane, WI | N/A | State |
| 2026-06-22 | UNITED ENERGY NECEDAH LLC — high-priority violation on file | NECEDAH, Juneau, WI | Pass | State |
| 2026-05-05 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | Pass | State |
| 2026-04-28 | HYDRITE CHEMICAL CO. — high-priority violation on file | COTTAGE GROVE, Dane, WI | Pass | State |
| 2026-03-04 | BADGER STATE ETHANOL, INC. — high-priority violation on file | MONROE, Green, WI | Pass | State |
| 2026-03-03 | UNITED ENERGY NECEDAH LLC — high-priority violation on file | NECEDAH, Juneau, WI | Pass | State |
| 2026-02-10 | UNITED WISCONSIN GRAIN PRODUCERS, LLC — high-priority violation on file | FRIESLAND, Columbia, WI | Pass | State |
| 2026-01-20 | BIG RIVER RESOURCES BOYCEVILLE LLC | BOYCEVILLE, Dunn, WI | 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.