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 |
|---|---|---|
| C&H AGGREGATE - NORTH WELD GRAVEL PIT | Minor source | No |
| C&J GRAVEL PRODUCTS - CU GENSET | Minor source | No |
| CABOT OIL & GAS - FOSSIL FEDERAL #1-19 | Minor source | No |
| CABOT OIL & GAS CORP - CAT 3306TA | Minor source | No |
| CABOT OIL & GAS CORPORATION | Minor source | No |
| CAERUS - PORTABLE LIFT ENGINE GL-5 | Minor source | No |
| CAERUS - PORTABLE LIFT ENGINE GL-6 | Minor source | No |
| CAERUS - PORTABLE LIFT ENGINE GL-7 | Minor source | No |
| CAERUS PICEANCE LLC - NOLTE METER | Minor source | No |
| CALCO INC.--XA | Minor source | No |
| CAMAS COLORADO INC AGGREGATES DIV | Minor source | No |
| CAMAS COLORADO DBA AGGREGATE INDUSTRIES | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC | Minor source | No |
| CARDER INC (NORDBERG 6X20 SCREEN) | Minor source | No |
| CARDER INC (SIMPLICITY HS140D SCREEN) | Minor source | No |
| CARDER INC- CARLTON UNIT #393 | Minor source | No |
| CARDER INC- HARD SCRABBLE POWERSCREEN | Minor source | No |
| CASTLE CONCRETE CO | Minor source | No |
| CASTLE CONCRETE CO | Minor source | No |
| CASTLE CONCRETE CO | Minor source | No |
| CASTLE ROCK CON- G6205 | Minor source | No |
| CASTLE ROCK CONST. - PORT CONCRETE BATHC | Minor source | No |
| CASTLE ROCK CONSTRUCTION CO. OF COLO. LL | Minor source | No |
| CASTLE ROCK CONSTRUCTION COMPANY OF COLO | Minor source | No |
| CAT CONSTRUCTION COMPANY | Minor source | No |
| CENTENNIAL AGGREGATES-DBL DECK SCREEN | Minor source | No |
| CENTENNIAL AGGREGATES, L.L.C. | Minor source | No |
| CENTENNIAL AGGREGATES, L.L.C. | Minor source | No |
| CHEMICAL LIME COMPANY | Minor source | No |
| CHRISTIAN CONST - PORTABLE CRUSHER | Minor source | No |
| CITATION OIL & GAS - HARKER #4 | Minor source | No |
| CITY & COUNTY OF DENVER - 026513-SWSW-BA | Minor source | No |
| CITY & COUNTY OF DENVER 026526-NESW-BATT | Minor source | No |
| CITY OF COLORADO SPRING STREET DIV | Minor source | No |
| CITY OF FORT COLLINS POLICE SERVICES | Minor source | No |
| CITY OF LOVELAND STREETS DIVISION | Minor source | No |
| CITY OF OURAY | Minor source | No |
| CNC DIRT MOVERS INC. | Minor source | No |
| CNC DIRT MOVERS INC. | Minor source | No |
| COBLACO SERVICES, INC. | Synthetic minor source | No |
| COLO DEPT OF TRANSPORTATION #5010 | Synthetic minor source | No |
| COLORADO ASPHALT SVCS INC | Synthetic minor source | No |
| COLORADO CRUSHING - CATERPILLAR GENERATO | Minor source | No |
| COLORADO CRUSHING - FAB TECH MVP380 | Minor source | No |
| COLORADO CRUSHING - JAW CRUSHER | Minor source | No |
| COLORADO CRUSHING - PORT CRUSHER/SCREEN | Minor source | No |
| COLORADO CRUSHING - PORT CRUSHER/SCREEN | Minor source | No |
| COLORADO CRUSHING - PORT GEN | Minor source | No |
| COLORADO CRUSHING - PORT SCREEN | Minor source | No |
| COLORADO CRUSHING - PORTABLE CRUSHER | Minor source | No |
| COLORADO CRUSHING - PORTABLE GENERATOR | Minor source | No |
| COLORADO CRUSHING - PORTABLE SCREEN | Minor source | No |
| COLORADO CRUSHING - PORTABLE SCREEN | Minor source | No |
| COLORADO CRUSHING (WAS ALPINE AGGREGATE | Synthetic minor source | No |
| COLORADO CRUSHING INC | Minor source | No |
| COLORADO CRUSHING INC | Minor source | No |
| COLORADO CRUSHING, INC. | Minor source | No |
| COLORADO CRUSHING, INC. | Minor source | No |
| COLORADO CRUSHING, INC. - CAT GENERATOR | Minor source | No |
| COLORADO CRUSHING, INC. - PORT CRUSHER | Minor source | No |
| COLORADO DIVISION OF WILDLIFE (DOW) | Minor source | No |
| COLORADO DIVISION OF WILDLIFE (DOW) | Minor source | No |
| COLORADO LAVA - PORTABLE SCREEN | Minor source | No |
| COLORADO LIEN CO. DIVISION OF PETE LIEN | Minor source | No |
| COLORADO LIEN CO., DIV. OF PETE LIEN & S | Minor source | No |
| COLORADO LIME CO., DBA CALCO | Minor source | No |
| COLORADO LIME COMPANY | Minor source | No |
| COLORADO QUARRIES | Minor source | No |
| COLORADO QUARRIES - PORTABLE CRUSHER/SCR | Minor source | No |
| COLORADO QUARRIES - PORTABLE UNIT #3 | Minor source | No |
| COLORADO QUARRIES INC | Minor source | No |
| COLORADO SPRINGS UTILITIES | Minor source | No |
| COLORPRO AUTO RECONDITIONING | Minor source | No |
| COLTON LLC - THOMPSON PRICE | Minor source | No |
| COMMERCIAL ROCK PRODUCTS, INC | Minor source | No |
| CONCRETE WORKS OF COLORADO - PORT PLANT | Minor source | No |
| CONNELL RESOURCES | Minor source | No |
| CONNELL RESOURCES | Minor source | No |
| CONNELL RESOURCES | Minor source | No |
| CONNELL RESOURCES - CONNELL CAR PIT | Minor source | No |
| CONNELL RESOURCES - PORT CRUSHER-SCREEN | Minor source | No |
| CONNELL RESOURCES - PORT FABTEC CRUSHER | Minor source | No |
| CONNELL RESOURCES - PORT GENERATOR | Minor source | No |
| CONNELL RESOURCES - PORT JAW CRUSHER | Minor source | No |
| CONNELL RESOURCES - PORT SCREEN | Minor source | No |
| CONNELL RESOURCES - PORT SCREEN | Minor source | No |
| CONNELL RESOURCES - PORTABLE ENGINE | Synthetic minor source | No |
| CONNELL RESOURCES - PORTABLE ENGINE | Minor source | No |
| CONNELL RESOURCES - PORTABLE GENERATOR | Minor source | No |
| CONNELL RESOURCES - PORTABLE GENERATOR | Minor source | No |
| CONNELL RESOURCES - PORTABLE SCREEN | Minor source | No |
| CONNELL RESOURCES - PORTABLE SCREEN | Minor source | No |
| CONNELL RESOURCES (CAT 3306 DIESEL GEN) | Minor source | No |
| CONNELL RESOURCES INC | Minor source | No |
| CONNELL RESOURCES INC | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.