EPA Air · stack tests by state, industry and year
Petroleum and coal products manufacturing (NAICS 3241): stack tests in Wisconsin, 2026
- 8Stack 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 3241. A facility filing more than one industry code is counted under the first one on its record.
Petroleum and coal products manufacturing (NAICS 3241) in Wisconsin, other years
Other industries in Wisconsin, 2026
- Utilities (NAICS 2211) 51
- Paper manufacturing (NAICS 3221) 11
- Chemical manufacturing (NAICS 3251) 9
- 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 |
|---|---|---|---|---|
| 2026-04-09 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-04-09 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-04-08 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-04-07 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-02-05 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-02-04 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-02-04 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, WI | Pass | State |
| 2026-02-03 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | SUPERIOR, Douglas, 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.