EPA Air · stack tests by state and year
Air-emissions stack tests in Wyoming, 2024
- 1,285Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Wyoming during 2024; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Wyoming, 2024
- Campbell County 332
- Sublette County 229
- Sweetwater County 213
- Converse County 193
- Carbon County 84
- Laramie County 81
- Albany County 42
- Johnson County 42
- Lincoln County 23
- Natrona County 21
- Uinta County 8
- Platte County 6
- Fremont County 6
- Park County 4
Wyoming, other years
Air-emissions stack tests recorded in Wyoming, 2024
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2024-06-04 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2024-06-04 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2024-06-04 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-06-04 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-06-04 | PARADISE COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-06-03 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2024-06-03 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | SINCLAIR, Carbon, WY | Pass | State |
| 2024-06-03 | LUMAN COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-06-03 | LUMAN COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-06-03 | LUMAN COMPRESSOR STATION (ENTERPRISE JONAH GAS GATHERING CO) | SUBLETTE COUNTY, Sublette, WY | Pass | State |
| 2024-05-31 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-31 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-30 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-30 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-29 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-29 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-29 | CKN-ROCK SPRINGS STATION (MOUNTAIN WEST PIPELINE, LLC) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-29 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-29 | JIM BRIDGER PLANT (PACIFICORP) — high-priority violation on file | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-24 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-24 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-24 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-23 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-23 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-23 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-23 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-23 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2024-05-22 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2024-05-22 | DAVE JOHNSTON (PACIFICORP) | GLENROCK, Converse, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | BLACKS FORK GAS PLANT (HARVEST MIDSTREAM COMPANY) | GRANGER, Sweetwater, WY | Pass | State |
| 2024-05-22 | PAINTER COMPRESSOR STATION (KERN RIVER GAS TRANSMISSION) | EVANSTON, Uinta, WY | Pass | State |
| 2024-05-22 | PAINTER COMPRESSOR STATION (KERN RIVER GAS TRANSMISSION) | EVANSTON, Uinta, WY | Pass | State |
| 2024-05-15 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-15 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-15 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-15 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-09 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-09 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-09 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-05-09 | CHEYENNE PLANT (DYNO NOBEL INC) — high-priority violation on file | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PLANT (DYNO NOBEL INC) — high-priority violation on file | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PLANT (DYNO NOBEL INC) — high-priority violation on file | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PLANT (DYNO NOBEL INC) — high-priority violation on file | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-09 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-08 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-08 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-08 | DRY WILLOW WATER PUMP STATION (POWDER RIVER MIDSTREAM, LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-08 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-08 | CHEYENNE PRAIRIE GENERATING STATION (CHEYENNE LIGHT FUEL & POWER) | CHEYENNE, Laramie, WY | Pass | State |
| 2024-05-08 | GREEN RIVER WORKS (TATA CHEMICALS (SODA ASH) PARTNERS) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-07 | NAUGHTON PLANT (PACIFICORP) | KEMMERER, Lincoln, WY | Pass | State |
| 2024-05-07 | GREEN RIVER WORKS (TATA CHEMICALS (SODA ASH) PARTNERS) | SWEETWATER COUNTY, Sweetwater, WY | Pass | State |
| 2024-05-06 | MARY'S DRAW (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-06 | MARY'S DRAW (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-06 | MARY'S DRAW (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-06 | MARY'S DRAW (THUNDER CREEK GAS SERVICES) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-05-01 | HILIGHT GAS PLANT (WES POWDER RIVER HOLDINGS LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-04-30 | SCOTT COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-04-30 | SCOTT COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-04-30 | SCOTT COMPRESSOR STATION (TALLGRASS MIDSTREAM, LLC) | CONVERSE COUNTY, Converse, WY | Pass | State |
| 2024-04-29 | ROCK SPRINGS FERTILIZER COMPLEX (SIMPLOT PHOSPHATES) | ROCK SPRINGS, Sweetwater, WY | Pass | State |
| 2024-04-29 | ROCK SPRINGS FERTILIZER COMPLEX (SIMPLOT PHOSPHATES) | ROCK SPRINGS, Sweetwater, WY | Pass | State |
| 2024-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-25 | OPAL GAS PLANT (WILLIAMS FIELD SERVICES) | OPAL, Lincoln, WY | Pass | State |
| 2024-04-25 | OPAL GAS PLANT (WILLIAMS FIELD SERVICES) | OPAL, Lincoln, WY | Pass | State |
| 2024-04-24 | MORGAN DRAW/CRENSHAW HILL (PRONGHORN MIDSTREAM LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-04-24 | MORGAN DRAW/CRENSHAW HILL (PRONGHORN MIDSTREAM LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-04-24 | MORGAN DRAW/CRENSHAW HILL (PRONGHORN MIDSTREAM LLC) | CAMPBELL COUNTY, Campbell, WY | Pass | State |
| 2024-04-24 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-24 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-24 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | CARBON COUNTY, Carbon, WY | Pass | State |
| 2024-04-24 | OPAL GAS PLANT (WILLIAMS FIELD SERVICES) | OPAL, Lincoln, WY | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.