EPA Air · stack tests by county and year
Air-emissions stack tests in Crook County, Wyoming, 2020
- 5Stack 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 Crook County, Wyoming during 2020. 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 Crook County facility page.
Crook County, Wyoming, 2020
Air-emissions stack tests in Crook County, other years
Air-emissions stack tests recorded in Crook County, Wyoming, 2020
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2020-10-07 | COLONY PLANT (BENTONITE PERFORMANCE MINERALS) | Pass | State |
| 2020-04-08 | COLONY PLANT (BENTONITE PERFORMANCE MINERALS) | Pass | State |
| 2020-04-06 | COLONY PLANT (BENTONITE PERFORMANCE MINERALS) | Pass | State |
| 2020-04-01 | COLONY PLANT (BENTONITE PERFORMANCE MINERALS) | Pass | State |
| 2020-03-12 | HULETT MILL (NEIMAN SAWMILL) | 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 Crook county, WY, in 2020. It lists 5 stack tests recorded in 2020.