EPA Air · stack tests by county and year
Air-emissions stack tests in Huron County, Michigan, 2026
- 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 Huron County, Michigan 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 Huron County facility page.
Huron County, Michigan, 2026
- Inspections 10
Air-emissions stack tests in Huron County, other years
Air-emissions stack tests recorded in Huron County, Michigan, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-09-15 | HURON CASTING, INC (BLUE DIAMOND STEEL CASTING) | Pass | State |
| 2026-09-09 | CORTEVA LLC — high-priority violation on file | Pass | State |
| 2026-04-06 | HURON CASTING, INC (BLUE DIAMOND STEEL CASTING) | Pass | State |
| 2026-01-28 | MICHIGAN SUGAR COMPANY - SEBEWAING 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.