EPA Air · stack tests by state and year

Air-emissions stack tests in Colorado, 2020

429Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Every stack test below was recorded against a source in Colorado during 2020; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Colorado, 2020

Colorado, other years

Air-emissions stack tests recorded in Colorado, 2020

Date	Facility	Where	Kind	Agency
2020-12-30	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2020-12-30	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2020-12-29	TRUE OIL - HIGHLANDS 5-64 15-16 PAD	WATKINS AREA, Arapahoe, CO	Fail	State
2020-12-29	TRUE OIL - HIGHLANDS 5-64 15-16 PAD	WATKINS AREA, Arapahoe, CO	Fail	State
2020-12-29	TRUE OIL - HIGHLANDS 5-64 15-16 PAD	WATKINS AREA, Arapahoe, CO	Fail	State
2020-12-28	PUBLIC SERVICE CO - HAYDEN PLT	HAYDEN, Routt, CO	Pass	State
2020-12-22	GRAND MESA - SEARCHERS/COWBOYS I-25	ARRIBA, Washington, CO	Pass	State
2020-12-21	GRAND MESA OPERATING - SALEN 14-35 TB	ARRIBA 20.2 MI. N OF, Washington, CO	Pass	State
2020-12-17	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-12-17	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2020-12-16	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-12-15	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-12-15	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-12-10	WES WATTENBURG - CENTRAL OIL STABIL	HUDSON 6.1 MI. N OF, Weld, CO	Pass	State
2020-12-09	WASTE MANAGEMENT - MIDWAY LANDFILL	FOUNTAIN, El Paso, CO	Pass	State
2020-12-09	PUBLIC SERVICE CO - HAYDEN PLT	HAYDEN, Routt, CO	Pass	State
2020-12-08	PLATTE RIVER POWER AUTHORITY - RAWHIDE	WELLINGTON 9.3 MI. N OF, Larimer, CO	Pass	State
2020-12-08	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Fail	State
2020-12-08	ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT	KEENESBURG, Weld, CO	Pass	State
2020-12-05	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2020-12-04	WASTE MANAGEMENT - COLORADO SPRINGS RECY	COLORADO SPRINGS AREA, El Paso, CO	Pass	State
2020-12-04	ARCOSA LWB LLC - LIGHTWEIGHT - BOULDER — high-priority violation on file	SUPERIOR AREA, Jefferson, CO	Pass	State
2020-12-04	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2020-12-04	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2020-12-04	RED CEDAR GATHERING COMPANY - SAMBRITO COMPRESSOR STATION	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-12-03	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	Pass	State
2020-12-03	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-12-03	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-12-02	BONANZA CRK ENERGY - NORTH PLATTE 24-34	KERSEY 6.1 MI. N OF, Weld, CO	Pass	State
2020-12-02	ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S.	LOCHBUIE AREA, Weld, CO	Pass	State
2020-12-02	ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S.	LOCHBUIE AREA, Weld, CO	Pass	State
2020-12-02	EXTRACTION O&G - JOHNSON'S CORNER	JOHNSTOWN, Weld, CO	Fail	State
2020-12-02	EXTRACTION O&G - JOHNSON'S CORNER	JOHNSTOWN, Weld, CO	Fail	State
2020-12-01	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2020-12-01	UNIV OF COLO - ANSCHUTZ MEDICAL CAMPUS	AURORA, Adams, CO	Pass	State
2020-12-01	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	Pass	State
2020-12-01	ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S.	LOCHBUIE AREA, Weld, CO	Pass	State
2020-12-01	ROCKY MOUNTAIN MIDSTREAM - LOCHBUIE C.S.	LOCHBUIE AREA, Weld, CO	Pass	State
2020-12-01	EXTRACTION - TRIPLE CREEK PRODUCTION	GREELEY, Weld, CO	Fail	State
2020-12-01	EXTRACTION - TRIPLE CREEK PRODUCTION	GREELEY, Weld, CO	Fail	State
2020-12-01	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-12-01	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-12-01	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-12-01	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-12-01	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Pass	State
2020-11-30	EXTRACTION O&G - HFE 22-P PROD FACILITY	BERTHOUD AREA, Weld, CO	Pass	State
2020-11-30	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-11-30	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-11-30	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-11-30	KERR-MCGEE- MUSTANG U-22 PRODUCTION FACI	KERSEY 8.1 MI. N OF, Weld, CO	Pass	State
2020-11-19	GRAND MESA - SEARCHERS/COWBOYS I-25	ARRIBA, Washington, CO	Pass	State
2020-11-19	GRAND MESA - SEARCHERS/COWBOYS I-25	ARRIBA, Washington, CO	Pass	State
2020-11-17	HIGHPOINT - GRINDE 1-64-5_4	HUDSON AREA, Weld, CO	Pass	State
2020-11-16	RED CEDAR GATHERING COMPANY - MIDWAY COMPRESSOR STATION	IGNACIO, La Plata, CO	Pass	State
2020-11-12	ARCOSA LWB LLC - LIGHTWEIGHT - BOULDER — high-priority violation on file	SUPERIOR AREA, Jefferson, CO	Fail	State
2020-11-12	PUBLIC SERVICE CO - COMANCHE PLT — high-priority violation on file	PUEBLO, Pueblo, CO	Pass	State
2020-11-11	PUBLIC SERVICE CO - COMANCHE PLT — high-priority violation on file	PUEBLO, Pueblo, CO	Pass	State
2020-11-06	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-11-05	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-05	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-11-05	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-11-05	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2020-11-04	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-04	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-04	GRAND RIVER GATHERING - PUMBA CS	RIFLE 3.4 MI. S OF, Garfield, CO	Pass	State
2020-11-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-11-04	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-11-04	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2020-11-03	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-03	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2020-11-03	GRAND RIVER GATHERING - PUMBA CS	RIFLE 3.4 MI. S OF, Garfield, CO	Pass	State
2020-11-03	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-11-03	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2020-11-02	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-02	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-11-02	SUMMIT DJ-O OPERATING - KOKI — high-priority violation on file	JACKSON LAKE, Weld, CO	Pass	State
2020-11-02	SUMMIT DJ-O OPERATING - KOKI — high-priority violation on file	JACKSON LAKE, Weld, CO	Pass	State
2020-10-30	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-10-30	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-10-30	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2020-10-30	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2020-10-30	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-10-30	DUNAMIS ENERGY - SASKATCHEWAN PAD	AULT AREA, Weld, CO	Pass	State
2020-10-29	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-10-29	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-10-29	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-10-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-10-28	NRO - AEROSPACE DATA FACIITY (ADF-C)	AURORA, Arapahoe, CO	Pass	State
2020-10-28	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-10-28	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-10-27	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-10-27	DCP OPERATING CO - O'CONNOR GAS PLANT	KERSEY AREA, Weld, CO	Pass	State
2020-10-27	DCP OPERATING CO - O'CONNOR GAS PLANT	KERSEY AREA, Weld, CO	Pass	State
2020-10-23	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-10-23	RED CEDAR GATHERING COMPANY - ARKANSAS LOOP AND SIMPSON TREATING PLANTS	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-10-22	CHEVRON USA INC - PICEANCE BASIN CENTRAL	PARACHUTE 16.6 MI. NW OF, Garfield, CO	Pass	State
2020-10-22	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-10-22	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-10-22	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-10-22	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State

Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.