EPA Air · stack tests by county and year
Air-emissions stack tests in Cheyenne County, Colorado, 2023
- 7Stack 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 Cheyenne County, Colorado during 2023. 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 Cheyenne County facility page.
Cheyenne County, Colorado, 2023
Air-emissions stack tests in Cheyenne County, other years
- 2024 9
Air-emissions stack tests recorded in Cheyenne County, Colorado, 2023
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2023-06-21 | MULL DRILLING CO - NWAU #4 TANK BATTERY | Pass | State |
| 2023-06-21 | MULL DRILLING CO - NWAU WATER PLANT | Pass | State |
| 2023-06-20 | MULL DRILLING - NWAU #5 TANK BATTERY | Pass | State |
| 2023-06-20 | MULL DRILLING - NWAU #6 TANK BATTERY | Pass | State |
| 2023-06-19 | MULL DRILLING - NWAU #1 TANK BATTERY | Pass | State |
| 2023-06-19 | MULL DRILLING - NWAU #2 TANK BATTERY — high-priority violation on file | Pass | State |
| 2023-06-19 | MULL DRILLING - NWAU #3 TANK BATTERY | 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 Cheyenne county, CO, in 2023. It lists 7 stack tests recorded in 2023.