EPA Air · stack tests by county and year
Air-emissions stack tests in Carbon County, Wyoming, 2026
- 58Stack 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 Carbon County, Wyoming during 2026. 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 Carbon County facility page.
Air-emissions stack tests in Carbon County, other years
Air-emissions stack tests recorded in Carbon County, Wyoming, 2026
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2026-07-22 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-07-22 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-07-22 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-07-22 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-19 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-18 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-18 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-18 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-18 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-18 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-06-01 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-06-01 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-06-01 | EIGHT MILE LAKE STATION (WILLIAMS FIELD SERVICES COMPANY) | Pass | State |
| 2026-06-01 | EIGHT MILE LAKE STATION (WILLIAMS FIELD SERVICES COMPANY) | Pass | State |
| 2026-06-01 | EIGHT MILE LAKE STATION (WILLIAMS FIELD SERVICES COMPANY) | Pass | State |
| 2026-05-29 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-29 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-29 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-29 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-15 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-05-15 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-05-13 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-05-13 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-05-05 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-05 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-05 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-05-05 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-04-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-04-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-04-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-04-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2026-03-24 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-03-24 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2026-03-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-03-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-03-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-03-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-05 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2026-03-04 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-03-04 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-02-26 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2026-02-25 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.