EPA Air · stack tests by county and year
Air-emissions stack tests in Bay County, Michigan, 2025
- 8Stack 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 Bay 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 Bay County facility page.
Bay County, Michigan, 2025
- Inspections 12
Air-emissions stack tests in Bay County, other years
Air-emissions stack tests recorded in Bay County, Michigan, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-02 | MICHIGAN SUGAR COMPANY - BAY CITY — high-priority violation on file | Pass | State |
| 2025-07-17 | WHITEFEATHER LANDFILL — high-priority violation on file | Pass | State |
| 2025-06-26 | CONSUMERS ENERGY D.E. KARN FACILITY | Pass | State |
| 2025-05-29 | BAY CITY ELECTRIC LIGHT & POWER | Pass | State |
| 2025-05-29 | BAY CITY ELECTRIC LIGHT & POWER | Pass | State |
| 2025-02-27 | MICHIGAN SUGAR COMPANY - BAY CITY — high-priority violation on file | Pass | State |
| 2025-02-12 | ENERGY DEVELOPMENTS PINCONNING, LLC | Pass | State |
| 2025-01-02 | MICHIGAN SUGAR COMPANY - BAY CITY — 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.