EPA Air · inspections by county and year
Air-emissions inspections in Douglas County, Wisconsin, 2026
- 25Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row below is one inspection recorded against a source in Douglas County, Wisconsin during 2026. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Douglas County facility page.
Douglas County, Wisconsin, 2026
Air-emissions inspections in Douglas County, other years
Air-emissions inspections recorded in Douglas County, Wisconsin, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-09-02 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-24 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-24 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-07 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-05 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-05 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-08-05 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-07-30 | ENBRIDGE SUPERIOR TERMINAL | PCE Off-Site | State |
| 2026-07-30 | ENBRIDGE SUPERIOR TERMINAL | PCE Off-Site | State |
| 2026-07-27 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-07-24 | FERADYNE OUTDOORS | PCE On-Site | U.S. EPA |
| 2026-07-13 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE On-Site | State |
| 2026-06-08 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-04-29 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-04-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-04-17 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-04-13 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-04 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-04 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-04 | GRAYMONT (WI) LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-03 | ENBRIDGE SUPERIOR TERMINAL | PCE Off-Site | State |
| 2026-02-02 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-02 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-02-02 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
| 2026-01-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | PCE Off-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.