EPA Air · violations by state and year
High-priority air violations in Colorado, 2025
- 168Violations
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next tier below it. Every violation below was recorded against a source in Colorado during 2025; one facility can appear more than once, because this is a record of what happened rather than a list of places.
Counties in Colorado, 2025
- Weld County 77
- Adams County 14
- Arapahoe County 8
- Cheyenne County 6
- Fremont County 5
- Jefferson County 4
- Lincoln County 4
- Undetermined County 4
- Mesa County 3
- Elbert County 3
- Denver County 3
- Las Animas County 3
- Montrose County 3
- Garfield County 3
- Pueblo County 3
- Larimer County 3
- Montezuma County 3
Colorado, other years
High-priority air violations recorded in Colorado, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-25 | NORTH SUBURBAN MEDICAL CENTER — high-priority violation on file | THORNTON, Adams, CO | Earliest FRV determination | State |
| 2025-12-24 | KODAK ALARIS - KODAK MOMENTS COLORADO — high-priority violation on file | WINDSOR AREA, Weld, CO | HPV day-zero determination | State |
| 2025-12-23 | OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file | WINDSOR, Weld, CO | HPV day-zero determination | State |
| 2025-12-17 | PUBLIC SERVICE CO - COMANCHE PLT — high-priority violation on file | PUEBLO, Pueblo, CO | Earliest FRV determination | State |
| 2025-12-12 | ONENECK IT-DENVER DATA CENTER — high-priority violation on file | PARKER AREA, Douglas, CO | Earliest FRV determination | State |
| 2025-12-11 | SUMMIT DJ-O OPERATING - KOKI — high-priority violation on file | JACKSON LAKE, Weld, CO | Earliest FRV determination | State |
| 2025-12-09 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | GREELEY AREA, Weld, CO | Earliest FRV determination | State |
| 2025-12-04 | MULL DRILLING - NWAU #2 TANK BATTERY — high-priority violation on file | CHEYENNE WELLS 9.2 MI. NE OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-12-02 | SUPERIOR OILFIELD SVCS - PORT. GENERATOR — high-priority violation on file | HEREFORD, Undetermined, CO | Earliest FRV determination | State |
| 2025-12-02 | SUPERIOR OILFIELD SVCS- PORTABLE CRUSHER — high-priority violation on file | GREELEY, Undetermined, CO | Earliest FRV determination | State |
| 2025-12-01 | KP KAUFFMAN - PIERRE B PRODUCTION BATTER — high-priority violation on file | WALDEN 3.9 MI. N OF, Jackson, CO | Earliest FRV determination | State |
| 2025-11-29 | ROMERO FAMILY FUNERAL HOME INC. — high-priority violation on file | PUEBLO, Pueblo, CO | Earliest FRV determination | State |
| 2025-11-28 | LARIMER COUNTY SOLID WASTE — high-priority violation on file | FORT COLLINS AREA, Larimer, CO | Earliest FRV determination | State |
| 2025-11-26 | BURNCO COLORADO - NISSEN GRAVEL MINE — high-priority violation on file | GREELEY AREA, Weld, CO | Earliest FRV determination | State |
| 2025-11-26 | BURNCO COLORADO LLC - INOUYE PIT — high-priority violation on file | FORT LUPTON AREA, Weld, CO | Earliest FRV determination | State |
| 2025-11-26 | BURNCO COLORADO - EWING GRAVEL MINE — high-priority violation on file | FORT LUPTON AREA, Weld, CO | Earliest FRV determination | State |
| 2025-11-25 | ARCOSA LWB LLC - LIGHTWEIGHT - BOULDER — high-priority violation on file | SUPERIOR AREA, Jefferson, CO | Earliest FRV determination | State |
| 2025-11-13 | ENERGY INVESTMENTS - WOLF MTN 15-2-7-87 — high-priority violation on file | HAYDEN 7.1 MI. NE OF, Routt, CO | Earliest FRV determination | State |
| 2025-11-07 | ALLIED DEMO - ALLIED RECYCLED AGGREGATES — high-priority violation on file | COMMERCE CITY AREA, Adams, CO | Earliest FRV determination | State |
| 2025-11-06 | OGRIS OPERATING - HILL RANCH 3 C.S. — high-priority violation on file | COKEDALE 18.2 MI. SW OF, Las Animas, CO | Earliest FRV determination | State |
| 2025-11-04 | ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file | LA SALLE 8.4 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-10-23 | HARLAN BAKERIES COLORADO, LLC — high-priority violation on file | DENVER AREA, Adams, CO | Earliest FRV determination | State |
| 2025-10-16 | BOSSELMAN TANK & TRAIL - 8999 E 96TH AVE — high-priority violation on file | COMMERCE CITY, Adams, CO | Earliest FRV determination | State |
| 2025-10-15 | POLARIS PRODUCTION OPCO- SILVERTON 16-10 — high-priority violation on file | GENOA 18.1 MI. N OF, Lincoln, CO | Earliest FRV determination | State |
| 2025-10-15 | POLARIS PRODUCTION OPCO - TAOS 1-10 — high-priority violation on file | GENOA 18.7 MI. N OF, Lincoln, CO | Earliest FRV determination | State |
| 2025-10-13 | POLARIS PRODUCTION OPCO - BIG SKY 5-11 — high-priority violation on file | GENOA 18.7 MI. N OF, Lincoln, CO | Earliest FRV determination | State |
| 2025-09-25 | 1876 RESOURCES - MARKHAM PAD — high-priority violation on file | MEAD AREA, Weld, CO | Earliest FRV determination | State |
| 2025-09-25 | PDC ENERGY - MCNEAR 10-9 PAD | GREELEY AREA, Weld, CO | Earliest FRV determination | State |
| 2025-09-23 | KP KAUFFMAN - PIERRE B PRODUCTION BATTER — high-priority violation on file | WALDEN 3.9 MI. N OF, Jackson, CO | Earliest FRV determination | State |
| 2025-09-18 | ENTERPRISE PRODUCTS - AURORA PUMP | AURORA, Adams, CO | Earliest FRV determination | State |
| 2025-09-17 | ROCKY MOUNTAIN BOTTLE CO - 10619 W 50TH | WHEAT RIDGE, Jefferson, CO | Earliest FRV determination | State |
| 2025-09-11 | AMERICAN GYPSUM COMPANY | GYPSUM, Eagle, CO | Earliest FRV determination | State |
| 2025-09-10 | SCI COLORADO FUNERAL DBA GRANT MORTUARY | CRAIG, Moffat, CO | Earliest FRV determination | State |
| 2025-08-29 | TEP ROCKY MTN - STARKEY TANK FACILITY | PARACHUTE 3.3 MI. N OF, Garfield, CO | Earliest FRV determination | State |
| 2025-08-29 | WASTE MANAGEMENT- BUFFALO RIDGE LANDFILL | KEENESBURG 5.1 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-08-27 | KIEWIT - COLORADO SPRINGS ASPHALT PLANT | COLORADO SPRINGS, El Paso, CO | Earliest FRV determination | State |
| 2025-08-27 | VA WESTERN COLORADO HEALTH CARE SYSTEM | GRAND JUNCTION, Mesa, CO | Earliest FRV determination | State |
| 2025-08-27 | STRACHAN EXPLORATION - LOGAN 2H | RAYMER 9.0 MI. SW OF, Weld, CO | Earliest FRV determination | State |
| 2025-08-27 | STRACHAN EXPLORATION - FORD FAMILY | RAYMER 10.5 MI. SW OF, Weld, CO | Earliest FRV determination | State |
| 2025-08-27 | PDC ENERGY - SPINNEY | PLATTEVILLE AREA, Weld, CO | Earliest FRV determination | State |
| 2025-08-19 | INVESTMENT EQUIP - CLIFFORD CAUSEY BATT | DEER TRAIL 22.5 MI. NE OF, Adams, CO | Earliest FRV determination | State |
| 2025-08-19 | FRITZLER RESOURCES - WAILES LEASE | AURORA 8.3 MI. N OF, Adams, CO | Earliest FRV determination | State |
| 2025-08-13 | RECLAMATION RIDGE, LLC-THOMPSON PIT | GRANBY AREA, Grand, CO | Earliest FRV determination | State |
| 2025-08-13 | TS LANDFILL, LLC - BROAD CANYON LANDFILL | NATURITA, Montrose, CO | Earliest FRV determination | State |
| 2025-08-09 | ROCKY MOUNTAIN MIDSTREAM - AUBURN CS | KERSEY AREA, Weld, CO | Earliest FRV determination | State |
| 2025-08-08 | BLACK EAGLE ENERGY SERVICES | BERTHOUD, Weld, CO | Earliest FRV determination | State |
| 2025-08-05 | K.P. KAUFFMAN - STANDLEY 1-2 & 2-2 | THORNTON, Adams, CO | Earliest FRV determination | State |
| 2025-07-30 | PAWNEE WASTE - PAWNEE WASTE E&P LANDFILL | GROVER 3.8 MI. SE OF, Weld, CO | Earliest FRV determination | State |
| 2025-07-24 | AUSCO - TRIGGER/TRUMPETFISH 22-31 PAD | ROCKVALE AREA, Fremont, CO | Earliest FRV determination | State |
| 2025-07-24 | AUSCO PETROLEUM - OILFISH 24-30 WELL PAD | ROCKVALE AREA, Fremont, CO | Earliest FRV determination | State |
| 2025-07-24 | BONANZA CREEK ENERGY - MULE DEER 14-16 | KERSEY 17.7 MI. E OF, Weld, CO | Earliest FRV determination | State |
| 2025-07-22 | MULL DRILLING - MUSF #2 CRUDE OIL BAT — high-priority violation on file | KIT CARSON 8.6 MI. NW OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-07-22 | LEITNER-POMA OF AMERICA, INC. | GRAND JUNCTION, Mesa, CO | Earliest FRV determination | State |
| 2025-07-21 | GENERAL SERVICES ADMINISTRATION | LAKEWOOD, Jefferson, CO | Earliest FRV determination | State |
| 2025-07-17 | CRESTONE PEAK - BIGHORN 17H-P267 | FIRESTONE, Weld, CO | Earliest FRV determination | State |
| 2025-07-15 | PUBLIC SERVICE CO - COMANCHE PLT — high-priority violation on file | PUEBLO, Pueblo, CO | Earliest FRV determination | State |
| 2025-07-04 | QUALITY LININGS & PAINTING | DENVER, Denver, CO | Earliest FRV determination | State |
| 2025-06-26 | CITATION OIL - MOUNT PEARL FACILITY | KIT CARSON 7.7 MI. N OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-06-26 | CITATION O & G - MPU 33-30 | KIT CARSON 9.1 MI. NE OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-06-26 | CITATION OIL & GAS - BLEDSOE 13-12 | FLAGLER 19.1 MI. S OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-06-26 | CITATION OIL ARAPAHOE SECTION 9 | CHEYENNE WELLS 11.3 MI. N OF, Cheyenne, CO | Earliest FRV determination | State |
| 2025-06-26 | MONTEZUMA COUNTY-HAY CAMP PIT | DOLORES AREA, Montezuma, CO | Earliest FRV determination | State |
| 2025-06-25 | AUSCO PETROLEUM - LIBERTY 32-32 WELL PAD | COAL CREEK AREA, Fremont, CO | Earliest FRV determination | State |
| 2025-06-25 | STRACHAN EXPLORATION - REINES 1-1H | RAYMER 9.7 MI. W OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-25 | STRACHAN EXPLORATION - WAVES 1H | RAYMER 11.6 MI. W OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-13 | MOONRISE - REDTAIL GAS PLANT | RAYMER (NEW RAYMER) 14.7 MI. N, Weld, CO | Earliest FRV determination | State |
| 2025-06-13 | DCP OPERATING CO - MILTON C.S. | LA SALLE 8.3 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-12 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | FORT LUPTON, Weld, CO | Earliest FRV determination | State |
| 2025-06-12 | BONANZA CRK-CROW VALLEY 7-62-35-2H/26-2H | KERSEY 16.4 MI. NE OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-11 | HIGHPOINT - ANSCHUTZ STATE 5-62-25-0108X | ORCHARD 8.8 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-11 | HIGHPOINT - ANSCHUTZ COFFELT 5-61-35_36 | WIGGINS 10.4 MI. NW OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-11 | PDC ENERGY - DITTMER KE PAD | BRIGHTON AREA, Weld, CO | Earliest FRV determination | State |
| 2025-06-05 | BONANZA CREEK ENERGY - ANTELOPE SECTION | KERSEY 9.2 MI. E OF, Weld, CO | Earliest FRV determination | State |
| 2025-06-04 | OLDCASTLE PRECAST - LITTLETON | HIGHLANDS RANCH, Douglas, CO | Earliest FRV determination | State |
| 2025-06-04 | PLATTE RIVER BIOGAS - 19179 CR 49 | LA SALLE 6.4 MI. SE OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-27 | RENEGADE OIL & GAS - WHITEHEAD 4-11 | COMANCHE CREEK AREA, Elbert, CO | Earliest FRV determination | State |
| 2025-05-26 | SCI COLORADO FUNERAL - CALLAHAN EDFAST | GRAND JUNCTION, Mesa, CO | Earliest FRV determination | State |
| 2025-05-26 | KERR-MCGEE O&G - 34003926 | JOHNSTOWN AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-26 | K.P. KAUFFMAN - KOESTER #3-33-3 | JOHNSTOWN AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-26 | PDC ENERGY - MARCUS LD PAD | THORNTON AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-26 | PDC - WIEDEMAN TRUST FEDERAL SEC 29 PAD | GILCREST AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-25 | STRACHAN EXPLORATION - STAUDINGER 1-31H | GROVER 16.4 MI. S OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-25 | BISON IV - BASHOR WELL PAD | GROVER AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-24 | KERR-MCGEE - X20529 36112878 SCHOMBER 35 | FORT LUPTON AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-20 | PRAIRIE OPERATING CO - SRC GEIS HZ TANK | EATON 3.1 MI. NE OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-19 | PDC ENERGY, INC. - HAROLD 6 SEC HZ | KERSEY 3.0 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-19 | PDC ENERGY - CHALK-SEELEY FEDERAL 26 SEC | GREELEY AREA, Weld, CO | Earliest FRV determination | State |
| 2025-05-06 | TOWN OF SPRINGFIELD - MUNICIPAL LANDFILL | SPRINGFIELD AREA, Baca, CO | Earliest FRV determination | State |
| 2025-05-05 | CRESTONE PEAK - TIBERIUS 4-64 8-7 NORTH | WATKINS, Arapahoe, CO | Earliest FRV determination | State |
| 2025-05-05 | CRESTONE PEAK - ARKANSAS 4-64 3-2 | WATKINS AREA, Arapahoe, CO | Earliest FRV determination | State |
| 2025-05-05 | NOBLE - PLUSS SHELTON T4N-R65W-S25 L02 | LA SALLE 5.9 MI. SE OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-05 | BISON IV - WHITETAIL F-4 PRODUCTION | KERSEY 14.2 MI. NE OF, Weld, CO | Earliest FRV determination | State |
| 2025-05-04 | KTM OPERATING - CRAIG 4-4 TANK BATTERY | HUGO 19.1 MI. S OF, Lincoln, CO | Earliest FRV determination | State |
| 2025-04-29 | ASPEN WOOD PRODUCTS | MANCOS AREA, Montezuma, CO | Earliest FRV determination | State |
| 2025-04-29 | CRESTONE - HERREN 33H-H367 | FIRESTONE AREA, Weld, CO | Earliest FRV determination | State |
| 2025-04-24 | MONTROSE FOREST PRODUCTS LLC | MONTROSE, Montrose, CO | Earliest FRV determination | State |
| 2025-04-24 | PRAIRIE OPERATING - BURROUGHS PROD FAC | EATON 3.7 MI. N OF, Weld, CO | Earliest FRV determination | State |
| 2025-04-23 | MONTROSE MEMORIAL HOSPITAL | MONTROSE, Montrose, CO | Earliest FRV determination | State |
| 2025-04-22 | TYLER ROCKIES - PEORIA #36 & #56 | PEORIA, Arapahoe, CO | Earliest FRV determination | State |
| 2025-04-22 | OGRIS OPERATING - HILL RANCH 4 C.S. | COKEDALE 16.3 MI. SW OF, Las Animas, CO | Earliest FRV determination | State |
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Dates as filed by the agency that recorded the violation. Figures from EPA’s ICIS-AIR download.