EPA Air · stack tests by state, industry and year
Utilities (NAICS 2211): stack tests in Wyoming, 2021
- 28Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2021 at a Wyoming source whose primary industry code is NAICS 2211. A facility filing more than one industry code is counted under the first one on its record.
Utilities (NAICS 2211) in Wyoming, other years
Other industries in Wyoming, 2021
- Pipeline transportation (NAICS 4862) 88
- Oil and gas extraction (NAICS 2111) 33
- Mining and quarrying (NAICS 2123) 27
- Petroleum and coal products manufacturing (NAICS 3241) 26
- Pipeline transportation (NAICS 4869) 8
- Chemical manufacturing (NAICS 3253) 6
- Nonmetallic mineral product manufacturing (NAICS 3274) 4
- Mining support (NAICS 2131) 4
- Nonmetallic mineral product manufacturing (NAICS 3273) 3
- Hospitals (NAICS 6221) 3
Air-emissions stack tests recorded in Wyoming, 2021
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2021-12-28 | LARAMIE RIVER STATION (BASIN ELECTRIC POWER COOPERATIVE) — high-priority violation on file | WHEATLAND, Platte, WY | Pass | State |
| 2021-12-10 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2021-11-17 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2021-09-16 | WYGEN STATION I POWER PLANT (BLACK HILLS WYOMING) | GILLETTE, Campbell, WY | Pass | State |
| 2021-09-16 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-09-14 | WYGEN II POWER STATION (OWNER: CHEYENNE LIGHT FUEL AND POWER) | GILLETTE, Campbell, WY | Pass | State |
| 2021-09-02 | NAUGHTON PLANT (PACIFICORP) | KEMMERER, Lincoln, WY | Pass | State |
| 2021-09-02 | LARAMIE RIVER STATION (BASIN ELECTRIC POWER COOPERATIVE) — high-priority violation on file | WHEATLAND, Platte, WY | Pass | State |
| 2021-06-30 | LARAMIE RIVER STATION (BASIN ELECTRIC POWER COOPERATIVE) — high-priority violation on file | WHEATLAND, Platte, WY | Pass | State |
| 2021-06-25 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2021-06-15 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-06-09 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2021-06-04 | WYGEN STATION I POWER PLANT (BLACK HILLS WYOMING) | GILLETTE, Campbell, WY | Pass | State |
| 2021-05-26 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-05-19 | DRY FORK STATION (BASIN ELECTRIC POWER COOP) | GILLETTE, Campbell, WY | Pass | State |
| 2021-05-19 | DRY FORK STATION (BASIN ELECTRIC POWER COOP) | GILLETTE, Campbell, WY | Pass | State |
| 2021-05-11 | WYGEN II POWER STATION (OWNER: CHEYENNE LIGHT FUEL AND POWER) | GILLETTE, Campbell, WY | Pass | State |
| 2021-04-13 | DRY FORK STATION (BASIN ELECTRIC POWER COOP) | GILLETTE, Campbell, WY | Fail | State |
| 2021-03-31 | LARAMIE RIVER STATION (BASIN ELECTRIC POWER COOPERATIVE) — high-priority violation on file | WHEATLAND, Platte, WY | Pass | State |
| 2021-03-24 | WYODAK PLANT (PACIFICORP) | GILLETTE, Campbell, WY | Pass | State |
| 2021-03-09 | DRY FORK STATION (BASIN ELECTRIC POWER COOP) | GILLETTE, Campbell, WY | Pass | State |
| 2021-03-08 | DRY FORK STATION (BASIN ELECTRIC POWER COOP) | GILLETTE, Campbell, WY | Pass | State |
| 2021-02-24 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-02-24 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-02-18 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2021-01-20 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2021-01-18 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2021-01-13 | NAUGHTON PLANT (PACIFICORP) | KEMMERER, Lincoln, WY | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.