EPA Air · by county
Air-emissions sources in Undetermined County, Colorado
- 1,500Facilities
Every stationary source in Undetermined County, Colorado that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Undetermined County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
Inspections in Undetermined County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 — inspections 6
- 2025 — inspections 29
- 2024 — inspections 26
- 2023 — inspections 25
- 2022 — inspections 38
- 2021 — inspections 15
- 2020 — inspections 23
- 2019 — inspections 5
- 2018 — inspections 22
- 2017 — inspections 25
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| WEEMINUCHE CONST AUTH - PORT GENERATORS | Synthetic minor source | No |
| WEEMINUCHE CONST AUTH - RIDGES BASIN DAM | Synthetic minor source | No |
| WELD COUNTY PUBLIC WORKS - P. SCREEN #3 | Minor source | No |
| WELD COUNTY PUBLIC WORKS - PORT CRSHR #2 | Minor source | No |
| WES KAN CONST | Synthetic minor source | No |
| WEST END GRAVEL COMPANY | Minor source | No |
| WESTERN DISPOSAL - PORTABLE GRINDER 424 | Minor source | No |
| WESTERN GRAVEL, INC. - POWERSCREEN | Minor source | No |
| WESTERN MOBILE BOULDER INC | Minor source | No |
| WESTERN MOBILE SOUTHERN INC | Minor source | No |
| WESTERN RESOURCES CO (COAL SCREEN) | Minor source | No |
| WESTERN SLOPE MTRLS DBA SILT SAND & GRAV | Minor source | No |
| WESTERN STATES CONT- CRUSHER #1 | Minor source | No |
| WEXPRO - RABBIT MOUNTAIN (TANKS 869 & 87 | Minor source | No |
| WHITEWATER BUILDING MATERIALS - 501 PIT | Minor source | No |
| WHITEWATER BUILDING MATERIALS CORP | Minor source | No |
| WHITEWATER BUILDING MATERIALS CORP | Minor source | No |
| WHITING OIL & GAS CORP - LINNEBUR #2 | Minor source | No |
| WIEPKING-FULLERTON - SKARPOHL WELLS 3304 | Minor source | No |
| WILDHORSE GAS GATHERING-PREMIER DEBEQUE | Minor source | No |
| WILLIAMS CONSTRUCTION | Minor source | No |
| WILLIAMS CONSTRUCTION | Minor source | No |
| WILLIAMS CONSTRUCTION | Minor source | No |
| WILLIAMS FIELD SERVICES -BONDAD 33-9 | Minor source | No |
| WILLIAMS FIELD SERVICES (CAT G3304NA) | Minor source | No |
| WILLIAMS FIELD SVCS | Minor source | No |
| WILLIAMS PROD - FEDERAL BCU 42-31-198 | Minor source | No |
| WILLIAMS PROD - RGU 33-24-198 | Synthetic minor source | No |
| WILLIAMS PROD - RYAN GULCH 11-25-198 | Minor source | No |
| WILLIAMS PROD - RYAN GULCH 31-02 298 | Minor source | No |
| WILLIAMS PROD - RYAN GULCH 32-5 298 | Minor source | No |
| WILLIAMS PROD -RYAN GULCH 22-16-298 | Minor source | No |
| WILLIAMS PROD -RYAN GULCH UNIT 11-11-298 | Minor source | No |
| WILLIAMS PROD -RYAN GULCH UNIT 14-28-198 | Minor source | No |
| WILLIAMS PROD -RYAN GULCH UNIT 33-32-198 | Minor source | No |
| WILLIAMS PROD -RYAN GULCH UNIT 42-3-298 | Minor source | No |
| WILLIAMS PROD & EXPLORATION CO | Minor source | No |
| WILLIAMS PROD & EXPLORATION CO | Minor source | No |
| WILLIAMS PROD & EXPLORATION CO | Minor source | No |
| WILLIAMS PROD RMT - RYAN GULCH 34-19 198 | Minor source | No |
| WILLIAMS PRODUCTION - RGU 12-1-298 | Minor source | No |
| WILLIAMS PRODUCTION - RGU 24-25-198 | Minor source | No |
| WILLIAMS PRODUCTION & EXPLORATION CO | Minor source | No |
| WILLIAMS PRODUCTION AND EXPLORATION CO. | Minor source | No |
| WILLIAMS PRODUCTION AND EXPLORATION CO. | Minor source | No |
| WILLIAMS PRODUCTION MV 39-03-W | Minor source | No |
| WILLIAMS PRODUCTION RMT - GV 81-5 | Minor source | No |
| WILLIAMS PRODUCTION RMT - MV 04-03 | Minor source | No |
| WILLIAMS PRODUCTION RMT - MV 11-11 | Minor source | No |
| WILLIAMS PRODUCTION RMT - RG 22-5-397 | Synthetic minor source | No |
| WILLIAMS PRODUCTION RMT - RG 31-16-397 | Minor source | No |
| WILLIAMS PRODUCTION RMT - RG 32-17-298 | Minor source | No |
| WILLIAMS PRODUCTION RMT - RGU 13-24-198 | Minor source | No |
| WILLIAMS PRODUCTION RMT - RGU 23-35-198 | Synthetic minor source | No |
| WILLIAMS PRODUCTION RMT - TR 21-36-597 | Minor source | No |
| WILLIAMS PRODUCTION RMT - TR 32-23-597 | Minor source | No |
| WILLIAMS PRODUCTION RMT - TR 41-22-597 | Minor source | No |
| WILLIAMS PRODUCTION RMT - TR 44-27 | Minor source | No |
| WILLIAMS PRODUCTION-RYAN GULCH 32-04 298 | Minor source | No |
| WILLITS CO INC | Minor source | No |
| WILLITS COMPANY, INC. | Minor source | No |
| WILLITS COMPANY, INC. | Minor source | No |
| WILLITS COMPANY, INC. | Minor source | No |
| WILLITS COMPANY, INC. | Minor source | No |
| WILLITS COMPANY, INC. | Minor source | No |
| WM D SCEPANIAK - PORTABLE CRUSHER | Minor source | No |
| WPX ENERGY - PORTABLE ENG-DWP12 | Minor source | No |
| WPX ENERGY RKY MTN - ENG-DWP19 | Minor source | No |
| WPX ENERGY RKY MTN - PORT. ENGINE | Minor source | No |
| WPX ENERGY RKY MTN - PORTABLE ENG-DWP10 | Minor source | No |
| WPX ENERGY RKY MTN, LLC - BCU 24-30-198 | Minor source | No |
| WPX ENERGY RKY MTN, LLC - RGU 23-7-297 | Minor source | No |
| WPX ENERGY RKY MTN, LLC - TR 23-30-597 | Minor source | No |
| WPX ENERGY ROCKY MOUNTAIN - ENG-DWP14 | Minor source | No |
| WW CLYDE - TEMPORARY BATCH PLANT SITE | Minor source | No |
| XTO ENERGY - ARROW VRG330 SN: P-1317 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 386473 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 388422 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 399117 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 399441 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 399531 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 399829 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 399847 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: 400049 | Minor source | No |
| XTO ENERGY - ARROW VRG330, SN: P-2027 | Minor source | No |
| XTO ENERGY - CAT G3306, SN: G6X01598 | Minor source | No |
| XTO ENERGY - NE 36-03 - PORTABLE | Minor source | No |
| XTO ENERGY - PORTABLE ARROW PUMP ENGINE | Minor source | No |
| XTO ENERGY - PORTABLE CAT 3306 PUMP ENG | Minor source | No |
| XTO ENERGY- PORTABLE KENDRICK 3-31 | Minor source | No |
| XTO ENERGY, INC - BURKETT 1-3 PORT. ENG. | Minor source | No |
| XTO ENERGY, INC- HUBER FLANAGAN 2-32 | Minor source | No |
| XTO ENERGY, INC- REININGHAUS 2-7 | Minor source | No |
| XTO ENERGY, INC. - AC 01-16 PORT. ENGINE | Minor source | No |
| XTO ENERGY, INC. - AC 12-04 PORT. ENGINE | Minor source | No |
| XTO ENERGY, INC. - NE 26-12 PORT. ENGINE | Minor source | No |
| YNJ, INC DBA VILLAGE DRY CLEANERS | Minor source | No |
| ZARCO EQUIPMENT INC. | Minor source | No |
| ZIGAN SAND & GRAVEL INC | Minor source | No |
| ZIGAN SAND & GRAVEL INC | Minor source | No |
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County as filed on the facility record. Figures from EPA’s ICIS-AIR download.