EPA Air · stack tests by county and year
Air-emissions stack tests in Sanilac County, Michigan, 2025
- 4Stack 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 Sanilac County, Michigan during 2025. 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 Sanilac County facility page.
Sanilac County, Michigan, 2025
- Inspections 12
What stands out
- Its 4 stack tests rank 27th of the 35 county cells in Michigan for 2025.
- Its 4 stack tests are 1% of the 387 the state’s file holds for 2025.
Every line is computed by formula from the state’s stored file; nothing is estimated.
Air-emissions stack tests recorded in Sanilac County, Michigan, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-04 | MICHIGAN SUGAR COMPANY, CROSWELL FACTORY — high-priority violation on file | Pass | State |
| 2025-11-04 | MICHIGAN SUGAR COMPANY, CROSWELL FACTORY — high-priority violation on file | Pass | State |
| 2025-02-25 | MICHIGAN SUGAR COMPANY, CROSWELL FACTORY — high-priority violation on file | Fail | State |
| 2025-01-02 | MICHIGAN SUGAR COMPANY, CROSWELL FACTORY — 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.
What this page shows
This page covers Clean Air Act facilities in the EPA air register with stack tests in Sanilac county, MI, in 2025. It lists 4 stack tests recorded in 2025.