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 |
|---|---|---|
| LAWSON CONSTRUCTION COMPANY | Minor source | No |
| LEADVILLE RESEARCH & DEVELOPMENT CORP | Minor source | No |
| LEONE SAND & GRAVEL - PORTABLE GENERATOR | Minor source | No |
| LEONE SAND AND GRAVEL | Minor source | No |
| LEONE SAND AND GRAVEL | Minor source | No |
| LEVEL 3 COMMUNICATIONS | Synthetic minor source | No |
| LG EVERIST INC | Synthetic minor source | No |
| LG EVERIST INC - PORTABLE SCREEN | Minor source | No |
| LG EVERIST INC (HEWITT 2142 JAW CRUSHER) | Minor source | No |
| LG EVERIST INC DBA ANDESITE ROCK COMPANY | Minor source | No |
| LG EVERIST, INC. | Minor source | No |
| LG EVERIST, INC. | Minor source | No |
| LHOIST- PORTABLE TRANSLOADER | Synthetic minor source | No |
| LOUDWIRE DIESEL - PORTABLE SCREEN | Minor source | No |
| LOVELAND READY MIX CONCRETE INC | Minor source | No |
| LOVELAND READY MIX CONCRETE INC | Minor source | No |
| LSC DESTRUCTION - PORT CONTRABAND UNIT | Minor source | No |
| M. A. CONCRETE CONST- MONUMENT VIEW PIT | Minor source | No |
| M.A. CONCRETE CONSTRUCTION - PORT. GEN | Minor source | No |
| MARALEX RESOURCES, INC. | Minor source | No |
| MARALEX RESOURCES, INC. - CAT COMP | Minor source | No |
| MARTIN MARIETTA MAT- PORT. ASTEC SCREEN | Minor source | No |
| MARTIN MARIETTA MAT- PORTABLE GENERATOR | Minor source | No |
| MARTIN MARIETTA - CEDARAPIDS 3042 | Minor source | No |
| MARTIN MARIETTA - PORT CONCRETE BATCH PL | Minor source | No |
| MARTIN MARIETTA - PORT SCREEN #4259202 | Minor source | No |
| MARTIN MARIETTA - PORTABLE CRUSHER | Minor source | No |
| MARTIN MARIETTA - PORTABLE SCREEN | Minor source | No |
| MARTIN MARIETTA - PORTABLE SCREEN | Minor source | No |
| MARTIN MARIETTA - PORTABLE SCREEN | Minor source | No |
| MARTIN MARIETTA - SANDVIK SCREEN UNIT | Minor source | No |
| MARTIN MARIETTA CEDARAPIDS C54II | Minor source | No |
| MARTIN MARIETTA MATERIALS - PORT CRUSHER | Minor source | No |
| MARTIN MARIETTA MATERIALS - PORTABLE ENG | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 28F0595 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 45547 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 46173 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 46768 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 47651 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 49144 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 50641 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 52697 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 53211 | Minor source | No |
| MARTIN MARIETTA MTRLS - CRUSHER 54978 | Minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - PORT CRUSHER | Minor source | No |
| MARTIN MARIETTA MTRLS - PORT GENERATOR | Synthetic minor source | No |
| MARTIN MARIETTA MTRLS - PORT SCREEN | Minor source | No |
| MARTIN MARIETTA MTRLS - PORT SCREEN | Minor source | No |
| MARTIN MARIETTA MTRLS - PORT. CRUSHER | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 23701 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 28605 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 34AO594 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 34J1192 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 43KO394 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 46112 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 47799 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 48356 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 54537 | Minor source | No |
| MARTIN MARIETTA MTRLS - SCREEN 55029 | Minor source | No |
| MARTIN MARIETTA MTRLS - SEE 777-4227 | Minor source | No |
| MARTIN SAND & GRAVEL | Minor source | No |
| MATHIAS CONCRETE INC | Minor source | No |
| MCATEE CONSTRUCTION CO- RIVERSIDE | Minor source | No |
| MCATEE PAVING COMPANY (CMI 4DM) | Synthetic minor source | No |
| MCSTONE AGGREGATES, LLC - #25-5 | Minor source | No |
| MEARS FERTILIZER, INC. - UNIT 1 | Minor source | No |
| MEARS FERTILIZER, INC. - UNIT 3 | Minor source | No |
| MEEKER SAND & GRAVEL - CRUSHER & GEN | Minor source | No |
| MEEKER SAND & GRAVEL-WARRIOR 1400 POWERS | Minor source | No |
| MERIT ENERGY COMPANY- CAESAR 3-11 | Minor source | No |
| MERIT ENERGY COMPANY- SMITH LANE | Minor source | No |
| MILES CONST CO | Synthetic minor source | No |
| MILL IRON MINING - PORTABLE GENERATOR | Minor source | No |
| MILL IRON MINING - PORTABLE PLANT | Synthetic minor source | No |
| MILL IRON MINING - PORTABLE SCREEN | Minor source | No |
| MILLSTONE WEBER - PORTABLE CONCRETE BATC | Minor source | No |
| MK SAND & GRAVEL (CEDAR RAPIDS CONE) | Minor source | No |
| MOBILE CONCRETE - PORT CONCRETE PLANT | Minor source | No |
| MOBILE CONCRETE - PORT CONCRETE PLNT ENG | Minor source | No |
| MOBILE CONCRETE - PORT. CONCRETE PLANT | Minor source | No |
| MOBILE CONCRETE INC - PORTABLE CEB | Minor source | No |
| MOFFAT CNTY ROAD DEPT - BIG BURN PIT | Minor source | No |
| MONTE VISTA COOPERATIVE | Minor source | No |
| MONTEZUMA COUNTY | Minor source | No |
| MOORES MINING, LLC- CRUSHER | Minor source | No |
| MOORES MINING, LLC- GEN SET | Minor source | No |
| MOORES MINING, LLC- JAW CRUSHER | Minor source | No |
| MOORES MINING, LLC- SCREEN | Minor source | No |
| MOORES MINING, LLC- SCREEN | Minor source | No |
| MOORES MINING, LLC- SCRN & CONE | Minor source | No |
| MOUNTAIN PARK CONCRETE - PORT. SCREEN | Minor source | No |
| MOUNTAIN PARK CONCRETE INC | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.