EPA Air · stack tests by county and year
Air-emissions stack tests in Washtenaw County, Michigan, 2021
- 6Stack 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 Washtenaw County, Michigan during 2021. 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 Washtenaw County facility page.
Washtenaw County, Michigan, 2021
Air-emissions stack tests in Washtenaw County, other years
Air-emissions stack tests recorded in Washtenaw County, Michigan, 2021
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2021-11-10 | ARBOR HILLS LANDFILL, INC. — high-priority violation on file | Pass | State |
| 2021-10-21 | DTE GAS COMPANY - WILLOW RUN COMPRESSOR STATION | Pass | State |
| 2021-09-30 | UNIVERSITY OF MICHIGAN | Pass | State |
| 2021-08-30 | DTE GAS COMPANY - WILLOW RUN COMPRESSOR STATION | Pass | State |
| 2021-05-04 | CONSUMERS ENERGY - FREEDOM COMPRESSOR STATION | Pass | State |
| 2021-01-05 | UNIVERSITY OF MICHIGAN | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.