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
2020-08-05	FRONT RANGE ENERGY, LLC	WINDSOR, Weld, CO	Pass	State
2020-08-05	FRONT RANGE ENERGY, LLC	WINDSOR, Weld, CO	Pass	State
2020-08-05	RED CEDAR GATHERING COMPANY - SPRING CREEK COMPRESSOR STATION	IGNACIO, La Plata, CO	Pass	State
2020-08-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-08-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-08-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-08-04	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2020-08-04	ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS	NUNN 14.3 MI. N OF, Weld, CO	Pass	State
2020-08-03	ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS	NUNN 14.3 MI. N OF, Weld, CO	Pass	State
2020-07-30	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-07-30	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-07-30	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-07-30	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-07-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-07-29	PUBLIC SERV - ROCKY MOUNTAIN ENERGY	HUDSON AREA, Weld, CO	N/A	State
2020-07-29	PUBLIC SERV - ROCKY MOUNTAIN ENERGY	HUDSON AREA, Weld, CO	N/A	State
2020-07-28	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-07-28	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-07-27	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-07-27	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-07-25	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2020-07-25	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2020-07-23	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2020-07-20	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-07-20	DUNAMIS ENERGY - ORCA COMPRESSOR STATION	SEVERANCE 3.3 MI. N OF, Weld, CO	Pass	State
2020-07-16	GCC RIO GRANDE - PUEBLO CEMENT PLANT — high-priority violation on file	PUEBLO 4.5 MI. S OF, Pueblo, CO	Pass	State
2020-07-16	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-07-16	NOBLE - LD19-16 ECONODE T9N-R58W-S19 L01	RAYMER (NEW RAYMER), Weld, CO	Pass	State
2020-07-15	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-07-15	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-07-15	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-07-14	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-07-14	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-07-14	BLACK HILLS ELECTRIC GENERATION - PAGS	PUEBLO, Pueblo, CO	Pass	State
2020-07-13	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-07-13	FULCRUM ENERGY - BIGHORN-MUTUAL 0780 S17	WALDEN 11.6 MI. N OF, Jackson, CO	Pass	State
2020-07-08	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	KERSEY, Weld, CO	Pass	State
2020-07-08	BISON IV - FOX CREEK 28 SWSE	GROVER 12.4 MI. N OF, Weld, CO	Pass	State
2020-07-02	SIMCOE - TREATING SITE #8 CENTRAL DELIVERY POINT	DURANGO, La Plata, CO	Pass	State
2020-06-30	SIMCOE - MIERA CENTRAL DELIVERY POINT	LA PLATA COUNTY, La Plata, CO	Pass	U.S. EPA
2020-06-30	SIMCOE - MIERA CENTRAL DELIVERY POINT	LA PLATA COUNTY, La Plata, CO	Pass	U.S. EPA
2020-06-29	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-06-28	BONANZA CREEK - ANTELOPE CPF 13-21	KERSEY 10.4 MI. E OF, Weld, CO	Pass	State
2020-06-25	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-25	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-24	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-24	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-06-23	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-23	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-23	TEP ROCKY MTN- BAILEY COMPRESSOR STATION	SILT 2.2 MI. S OF, Garfield, CO	Pass	State
2020-06-23	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-06-22	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-06-18	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-06-18	GRAND RIVER GATHERING - HUNTER MESA CS	RIFLE 3.3 MI. SE OF, Garfield, CO	Pass	State
2020-06-18	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-06-18	COORSTEK, INC. - CENTER FOR ADVANCED MAT	GOLDEN, Jefferson, CO	Pass	State
2020-06-18	BONANZA CRK STATE NORTH PLATTE CPF 42-26	KERSEY 7.1 MI. N OF, Weld, CO	Pass	State
2020-06-17	GRAND RIVER GATHERING - PUMBA CS	RIFLE 3.4 MI. S OF, Garfield, CO	Pass	State
2020-06-17	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-06-17	BONANZA CRK STATE NORTH PLATTE CPF 42-26	KERSEY 7.1 MI. N OF, Weld, CO	Pass	State
2020-06-16	GRAND RIVER GATHERING - PUMBA CS	RIFLE 3.4 MI. S OF, Garfield, CO	Pass	State
2020-06-16	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-06-16	EXTRACTION- MILKSHAKE 31-W / PAVISTMA-N	WINDSOR AREA, Weld, CO	Pass	State
2020-06-16	EXTRACTION- MILKSHAKE 31-W / PAVISTMA-N	WINDSOR AREA, Weld, CO	Pass	State
2020-06-15	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-06-11	GCC RIO GRANDE - PUEBLO CEMENT PLANT — high-priority violation on file	PUEBLO 4.5 MI. S OF, Pueblo, CO	Pass	State
2020-06-11	GCC RIO GRANDE - PUEBLO CEMENT PLANT — high-priority violation on file	PUEBLO 4.5 MI. S OF, Pueblo, CO	Pass	State
2020-06-11	BARGATH - RYAN GULCH COMPRESSOR STATION — high-priority violation on file	MEEKER 23.2 MI. W OF, Rio Blanco, CO	Pass	State
2020-06-11	BARGATH - RYAN GULCH COMPRESSOR STATION — high-priority violation on file	MEEKER 23.2 MI. W OF, Rio Blanco, CO	Pass	State
2020-06-10	GCC RIO GRANDE - PUEBLO CEMENT PLANT — high-priority violation on file	PUEBLO 4.5 MI. S OF, Pueblo, CO	Pass	State
2020-06-10	BARGATH - RYAN GULCH COMPRESSOR STATION — high-priority violation on file	MEEKER 23.2 MI. W OF, Rio Blanco, CO	Pass	State
2020-06-10	BARGATH - RYAN GULCH COMPRESSOR STATION — high-priority violation on file	MEEKER 23.2 MI. W OF, Rio Blanco, CO	Pass	State
2020-06-09	BARGATH - RYAN GULCH COMPRESSOR STATION — high-priority violation on file	MEEKER 23.2 MI. W OF, Rio Blanco, CO	Pass	State
2020-06-09	BONANZA CREEK - PRONGHORN D-9	JACKSON LAKE 6.6 MI. N OF, Weld, CO	Pass	State
2020-06-08	BONANZA CREEK ENERGY - ANTELOPE F-15 PAD	KERSEY 11.5 MI. E OF, Weld, CO	Pass	State
2020-06-07	DUNAMIS ENERGY - ORCA COMPRESSOR STATION	SEVERANCE 3.3 MI. N OF, Weld, CO	Fail	State
2020-06-02	NOBLE ENERGY - WELLS RANCH AA25 & 26 ECO	KERSEY 8.8 MI. NE OF, Weld, CO	Pass	State
2020-05-29	EXTRACTION - MICKEY-VARRA FACILITY	WINDSOR AREA, Weld, CO	Pass	State
2020-05-29	EXTRACTION - MICKEY-VARRA FACILITY	WINDSOR AREA, Weld, CO	Pass	State
2020-05-28	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-05-28	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	DACONO AREA, Weld, CO	Pass	State
2020-05-28	HIGHPOINT - ANSCHUTZ EQUUS FARMS 4-62-15	KERSEY 12.6 MI. E OF, Weld, CO	Pass	State
2020-05-27	FULCRUM ENERGY - OXBOW 0880 S29	WALDEN 8.9 MI. N OF, Jackson, CO	Pass	State
2020-05-27	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Pass	State
2020-05-27	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Pass	State
2020-05-27	BONANZA CREEK - STATE SEVENTY HOLES P-4	KERSEY 11.0 MI. E OF, Weld, CO	Pass	State
2020-05-23	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-05-22	BISON IV - CRITTER CREEK 15 SE	GROVER 9.8 MI. W OF, Weld, CO	Pass	State
2020-05-20	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-05-19	EL PASO NATURAL GAS COMPANY - BONDAD COMPRESSOR STATION	DURANGO, La Plata, CO	Pass	State
2020-05-18	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2020-05-18	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2020-05-18	DUNAMIS ENERGY - ORCA COMPRESSOR STATION	SEVERANCE 3.3 MI. N OF, Weld, CO	Fail	State
2020-05-15	SUMMIT DJ-O OPERATING - MAKENA GAS PLANT	GROVER 16.1 MI. N OF, Weld, CO	Pass	State
2020-05-15	SUMMIT DJ-O OPERATING - MAKENA GAS PLANT	GROVER 16.1 MI. N OF, Weld, CO	Pass	State
2020-05-15	SUMMIT DJ-O OPERATING - MAKENA GAS PLANT	GROVER 16.1 MI. N OF, Weld, CO	Pass	State
2020-05-15	SUMMIT DJ-O OPERATING - MAKENA GAS PLANT	GROVER 16.1 MI. N OF, Weld, CO	Fail	State
2020-05-15	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-15	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-15	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State

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