EPA Air · stack tests by state, industry and year
Petroleum and coal products manufacturing (NAICS 3241): stack tests in Wisconsin, 2026
- 10Stack 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) 78
- Paper manufacturing (NAICS 3221) 15
- Primary metal manufacturing (NAICS 3315) 10
- Chemical manufacturing (NAICS 3251) 9
- Waste management and remediation (NAICS 5622) 9
- Plastics and rubber products manufacturing (NAICS 3261) 7
- Utilities (NAICS 2213) 5
- Nonmetallic mineral product manufacturing (NAICS 3274) 4
- Paper manufacturing (NAICS 3222) 3
- Educational services (NAICS 6113) 3
- Nonmetallic mineral product manufacturing (NAICS 3271) 3
- Printing and related support (NAICS 3231) 3
Air-emissions stack tests recorded in Wisconsin, 2026
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2026-08-24 | MATHY CONSTRUCTION - PLANT 18 | ONALASKA, Undetermined, WI | Pass | State |
| 2026-08-18 | 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 |
| 2026-04-09 | 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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in WI for NAICS industry 3241 in 2026. Stack tests recorded in 2026: 8.