EPA Air · stack tests by state and year

Air-emissions stack tests in Colorado, 2021

407Stack 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 2021; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Colorado, 2021

Colorado, other years

Air-emissions stack tests recorded in Colorado, 2021

Date	Facility	Where	Kind	Agency
2021-12-28	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2021-12-28	EXPEDITION WATER SOLUTIONS - EWS #13	KERSEY AREA, Weld, CO	Fail	State
2021-12-23	PUBLIC SERVICE CO - HAYDEN PLT	HAYDEN, Routt, CO	Pass	State
2021-12-14	MID-AMERICA PIPELINE CO DOVE CR STA	DOVE CREEK 5.3 MI. NW OF, Dolores, CO	Pass	State
2021-12-10	WES WATTENBURG - CENTRAL OIL STABIL	HUDSON 6.1 MI. N OF, Weld, CO	Pass	State
2021-12-09	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-12-09	MORGAN COUNTY - MORGAN CO LANDFILL	FORT MORGAN 3.7 MI. NE OF, Morgan, CO	Pass	State
2021-12-09	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2021-12-08	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-12-08	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	N/A	State
2021-12-08	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	N/A	State
2021-12-08	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	Pass	State
2021-12-08	ROCKY MOUNTAIN NAT GAS - PICEANCE	MEEKER 17.4 MI. W OF, Rio Blanco, CO	Pass	State
2021-12-07	PLATTE RIVER POWER AUTHORITY - RAWHIDE	WELLINGTON 9.3 MI. N OF, Larimer, CO	Pass	State
2021-12-07	DCP OPERATING CO - TROUDT C.S.	GREELEY, Weld, CO	Pass	State
2021-12-06	ROCKY MTN NAT GAS - CRYSTAL RIVER CS	CARBONDALE 2.5 MI. W OF, Garfield, CO	Pass	State
2021-12-06	ROCKY MTN NAT GAS - CRYSTAL RIVER CS	CARBONDALE 2.5 MI. W OF, Garfield, CO	Pass	State
2021-12-06	ROCKY MTN NAT GAS - CRYSTAL RIVER CS	CARBONDALE 2.5 MI. W OF, Garfield, CO	Pass	State
2021-12-01	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2021-12-01	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2021-11-30	FULCRUM ENERGY - MUTUAL 0780 S17 PAD	WALDEN 11.7 MI. SW OF, Jackson, CO	Fail	State
2021-11-19	DCP OPERATING CO - LIBSACK C.S.	GREELEY AREA, Weld, CO	Pass	State
2021-11-19	BIOCHAR NOW, LLC - BERTHOUD PLANT	BERTHOUD, Weld, CO	Pass	State
2021-11-17	PHILLIPS 66 PIPELINE - LA JUNTA TERMINAL	LA JUNTA AREA, Otero, CO	Pass	State
2021-11-17	HARVEST FOUR CORNERS, LLC - IGNACIO GAS PLANT	DURANGO, La Plata, CO	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	KERSEY 4.8 MI. N OF, Weld, CO	Pass	State
2021-11-09	HIGHPOINT - DUTCH LAKE 3-3H PAD	KERSEY 14.7 MI. NE OF, Weld, CO	Pass	State
2021-11-05	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-11-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-11-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	N/A	State
2021-11-03	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-11-03	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-11-03	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	NUNN 18.4 MI. N OF, Weld, CO	N/A	State
2021-11-03	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	NUNN 18.4 MI. N OF, Weld, CO	Pass	State
2021-11-03	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	KERSEY, Weld, CO	N/A	State
2021-11-03	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	KERSEY, Weld, CO	Pass	State
2021-11-02	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-11-02	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	N/A	State
2021-11-02	SOUTHERN STAR CENTRAL GAS PIPELINE -YUMA	YUMA 5.9 MI. N OF, Yuma, CO	N/A	State
2021-11-02	SOUTHERN STAR CENTRAL GAS PIPELINE -YUMA	YUMA 5.9 MI. N OF, Yuma, CO	Pass	State
2021-11-01	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-11-01	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-10-31	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-10-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-28	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-10-28	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-28	BONANZA CRK ENERGY - NORTH PLATTE 24-34	KERSEY 6.1 MI. N OF, Weld, CO	Pass	State
2021-10-27	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-10-27	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-27	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Pass	State
2021-10-27	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Fail	State
2021-10-26	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2021-10-26	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-25	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2021-10-25	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2021-10-25	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2021-10-25	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2021-10-25	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-22	BARGATH LLC - COTTONWOOD POINT CS	RIFLE AREA, Garfield, CO	Pass	State
2021-10-21	CHEVRON USA INC - PICEANCE BASIN CENTRAL	PARACHUTE 16.6 MI. NW OF, Garfield, CO	Pass	State
2021-10-21	WEXPRO CO - E HIAWATHA/DEEP	DINOSAUR 55.9 MI. NE OF, Moffat, CO	Pass	State
2021-10-21	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2021-10-20	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2021-10-20	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2021-10-19	ROCKIES EXPRESS PIPELINE LLC - MEEKER	MEEKER 21.0 MI. N OF, Rio Blanco, CO	Pass	State
2021-10-19	ROCKIES EXPRESS PIPELINE LLC - MEEKER	MEEKER 21.0 MI. N OF, Rio Blanco, CO	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-18	TEP ROCKY MTN - CLOUGH PRODUCTION	RIFLE AREA, Garfield, CO	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2021-10-15	EL PASO NATURAL GAS COMPANY - BONDAD COMPRESSOR STATION	DURANGO, La Plata, CO	Pass	State
2021-10-14	SUNCOR ENERGY - DENVER REFINERY — high-priority violation on file	COMMERCE CITY, Adams, CO	Pass	State
2021-10-14	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2021-10-14	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2021-10-14	ARKOMA OPERATIONS, LLC - IGNACIO GAS TREATING PLANT	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2021-10-13	COLORADO SPRINGS UTILITIES - NIXON PLT	FOUNTAIN AREA, El Paso, CO	Pass	State
2021-10-13	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2021-10-12	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	N/A	State
2021-10-12	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	N/A	State
2021-10-12	WEXPRO CO - POWDER WASH	CRAIG 47.7 MI. NW OF, Moffat, CO	Pass	State
2021-10-12	UTAH GAS - WEST DRAGON TRAIL C.S.	RANGELY 15.4 MI. S OF, Rio Blanco, CO	Pass	State
2021-10-12	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2021-10-11	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	N/A	State
2021-10-11	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2021-10-05	CONSERVATION SERVICES INC	AURORA 3.9 MI. NE OF, Adams, CO	Pass	State
2021-10-05	QB ENERGY OPERATING - CDP K22 496	PARACHUTE 16.4 MI. N OF, Garfield, CO	Pass	State
2021-10-05	QB ENERGY OPERATING - CDP K22 496	PARACHUTE 16.4 MI. N OF, Garfield, CO	Pass	State
2021-10-05	GRAND RIVER GATHERING, LLC- HIGH MESA CS	PARACHUTE 2.5 MI. S OF, Garfield, CO	Pass	State
2021-10-05	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2021-10-05	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2021-10-05	SIMCOE - SALVADOR I / II CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	U.S. EPA
2021-10-04	GRAND RIVER GATH - OH14 WELL PAD	DEBEQUE 2.5 MI. NE OF, Mesa, CO	Pass	State
2021-10-04	DCP OPERATING CO - O'CONNOR GAS PLANT	KERSEY AREA, Weld, CO	Pass	State

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