EPA Air · stack tests by county and year
Air-emissions stack tests in Douglas County, Wisconsin, 2023
- 18Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Douglas County, Wisconsin during 2023. 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, 2023
Air-emissions stack tests in Douglas County, other years
Air-emissions stack tests recorded in Douglas County, Wisconsin, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-11-28 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
| 2023-11-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-11-02 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-10-10 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-09-21 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
| 2023-09-19 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
| 2023-09-06 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-08-29 | SUPERIOR REFINING COMPANY LLC - PETROLEUM BULK STATIONS AND TERMINALS | Pass | State |
| 2023-08-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-08-22 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-08-19 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
| 2023-07-11 | GENERAL MILLS OPERATIONS LLC | Pass | State |
| 2023-07-11 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-06-28 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-06-27 | SUPERIOR REFINING COMPANY LLC — high-priority violation on file | Pass | State |
| 2023-04-23 | GENERAL MILLS OPERATIONS LLC | Pass | State |
| 2023-03-14 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
| 2023-01-03 | GRAYMONT (WI) LLC — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.