EPA Air · stack tests by state and year

Air-emissions stack tests in Colorado, 2019

431Stack 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 2019; one facility can appear more than once, because this is a record of what happened rather than a list of places.

Counties in Colorado, 2019

Colorado, other years

Air-emissions stack tests recorded in Colorado, 2019

Date	Facility	Where	Kind	Agency
2019-10-16	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2019-10-16	SUMMIT MIDSTREAM NIOBR - HEREFORD RANCH	GROVER 11.0 MI. NW OF, Weld, CO	Pass	State
2019-10-15	GRAND RIVER GATHERING - PUMBA CS	RIFLE 3.4 MI. S OF, Garfield, CO	Pass	State
2019-10-15	CAPCO INC	GRAND JUNCTION, Mesa, CO	Pass	State
2019-10-15	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2019-10-15	SUMMIT MIDSTREAM NIOBR - HEREFORD RANCH	GROVER 11.0 MI. NW OF, Weld, CO	Fail	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	DCP OPERATING CO - GREELEY NATURAL GAS P	EVANS AREA, Weld, CO	Pass	State
2019-10-14	BIOCHAR NOW, LLC - BERTHOUD PLANT	BERTHOUD, Weld, CO	Fail	State
2019-10-14	EXTRACTION O&G - HFE 22-P PROD FACILITY	BERTHOUD AREA, Weld, CO	Fail	State
2019-10-12	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2019-10-11	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2019-10-10	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2019-10-10	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2019-10-10	WESTERN SUGAR CO - FORT MORGAN FACTORY	FORT MORGAN AREA, Morgan, CO	Pass	State
2019-10-10	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2019-10-10	WILLIAMS FIELD - WILLOW CREEK GAS PLANT — high-priority violation on file	RIO BLANCO 18 MILES W OF, Rio Blanco, CO	Pass	State
2019-10-09	NOBLE - WELLS RANCH STATE AF08 ECONODE	KERSEY, Weld, CO	N/A	State
2019-10-09	KERR MCGEE - MUSTANG Y-34 PRODUCTION FAC	KEENESBURG 10.3 MI. N OF, Weld, CO	Pass	State
2019-10-09	KERR MCGEE - MUSTANG Y-34 PRODUCTION FAC	KEENESBURG 10.3 MI. N OF, Weld, CO	Pass	State
2019-10-09	KERR MCGEE - MUSTANG Y-34 PRODUCTION FAC	KEENESBURG 10.3 MI. N OF, Weld, CO	Pass	State
2019-10-08	BIOCHAR NOW, LLC - BERTHOUD PLANT	BERTHOUD, Weld, CO	Fail	State
2019-10-08	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Pass	State
2019-10-08	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Pass	State
2019-10-08	KERR MCGEE - MUSTANG 14-26 PROD FACIL	KERSEY 9.4 MI. N OF, Weld, CO	Pass	State
2019-10-08	NOBLE ENERGY - HULLABALOO Y16-28-A ECONO	KEENESBURG 2.6 MI. N OF, Weld, CO	Pass	State
2019-10-07	NOBLE - WELLS RANCH STATE AF08 ECONODE	KERSEY, Weld, CO	Pass	State
2019-10-07	BONANZA CREEK - LONGHORN U-10 PROD FAC	KEENESBURG 9.3 MI. N OF, Weld, CO	Pass	State
2019-10-07	BONANZA CREEK - LONGHORN U-10 PROD FAC	KEENESBURG 9.3 MI. N OF, Weld, CO	Pass	State
2019-10-07	BONANZA CREEK - LONGHORN U-10 PROD FAC	KEENESBURG 9.3 MI. N OF, Weld, CO	Pass	State
2019-10-04	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2019-10-04	EXTRACTION - DIAMOND VALLEY EAST	WINDSOR AREA, Weld, CO	Pass	State
2019-10-04	BONANZA CREEK - PRONGHORN 24-7 BOOSTER	KERSEY 14.7 MI. E OF, Weld, CO	Pass	State
2019-10-03	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2019-10-03	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-10-03	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-10-03	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2019-10-03	CF & I STEEL L.P. DBA EVRAZ ROCKY MTN ST — high-priority violation on file	PUEBLO AREA, Pueblo, CO	Pass	State
2019-10-02	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2019-10-01	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2019-10-01	COLORADO INTERSTATE GAS CO - SPRINGFIELD	LAMAR 20.4 MI. S OF, Prowers, CO	Pass	State
2019-10-01	UTAH GAS - DRAGON TRAIL — high-priority violation on file	RANGELY 16.7 MI. S OF, Rio Blanco, CO	Pass	State
2019-10-01	FUNDARE - RAZOR 25B	RAYMER 14.0 MI. N OF, Weld, CO	Fail	State
2019-09-30	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2019-09-27	BONANZA CREEK - PRONGHORN 24-7 BOOSTER	KERSEY 14.7 MI. E OF, Weld, CO	Fail	State
2019-09-26	NOBLE ENERGY - WELLS RANCH AA12, AE07	KERSEY 11.5 MI. NE OF, Weld, CO	Pass	State
2019-09-25	NOBLE ENERGY - OSCAR Y10 ECONODE T2N-R64	KEENESBURG 2.5 MI. NW OF, Weld, CO	Pass	State
2019-09-24	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-24	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-20	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	LA SALLE 8.4 MI. N OF, Weld, CO	Pass	State
2019-09-19	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	LA SALLE 8.4 MI. N OF, Weld, CO	Pass	State
2019-09-19	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	LA SALLE 8.4 MI. N OF, Weld, CO	Pass	State
2019-09-19	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	LA SALLE 8.4 MI. N OF, Weld, CO	Pass	State
2019-09-19	RED CEDAR GATHERING COMPANY - PONDEROSA COMPRESSOR STATION	DURANGO, La Plata, CO	Pass	State
2019-09-18	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	LA SALLE 8.4 MI. N OF, Weld, CO	Pass	State
2019-09-18	RED CEDAR GATHERING COMPANY - SAMBRITO COMPRESSOR STATION	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2019-09-17	ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S.	BRIGHTON 3.0 MI. E OF, Adams, CO	Pass	State
2019-09-17	ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S.	BRIGHTON 3.0 MI. E OF, Adams, CO	Pass	State
2019-09-16	ROCKY MOUNTAIN MIDSTREAM - POWHATON C.S.	BRIGHTON 3.0 MI. E OF, Adams, CO	Pass	State
2019-09-16	ARKOMA OPERATIONS, LLC - IGNACIO GAS TREATING PLANT	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2019-09-12	DCP OPERATING CO - NORTHSTAR C.S.	EATON 3.4 MI. N OF, Weld, CO	Pass	State
2019-09-11	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-11	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-11	DCP OPERATING CO - GODFREY BOTTOM C.S.	EVANS AREA, Weld, CO	Pass	State
2019-09-11	DCP OPERATING CO - GODFREY BOTTOM C.S.	EVANS AREA, Weld, CO	Pass	State
2019-09-10	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-10	BARGATH LLC - PARACHUTE CREEK GAS PLANT	PARACHUTE 2.9 MI. NW OF, Garfield, CO	Pass	State
2019-09-10	DCP OPERATING CO - CROSSROADS FACILITY	KERSEY 5.0 MI. N OF, Weld, CO	Pass	State
2019-09-10	DCP OPERATING CO - CROSSROADS FACILITY	KERSEY 5.0 MI. N OF, Weld, CO	Pass	State
2019-09-10	ROCKY MOUNTAIN MIDSTREAM - FT LUPTON GAS	FORT LUPTON AREA, Weld, CO	Fail	State
2019-09-10	DCP OPERATING CO - NORTHSTAR C.S.	EATON 3.4 MI. N OF, Weld, CO	Pass	State
2019-09-09	DCP OPERATING CO - ROCKY TURBINE CS	KERSEY 8.6 MI. NE OF, Weld, CO	Pass	State
2019-09-09	DCP OPERATING CO - ROCKY TURBINE CS	KERSEY 8.6 MI. NE OF, Weld, CO	Pass	State
2019-08-29	ROCKY MOUNTAIN MIDSTREAM - FT LUPTON GAS	FORT LUPTON AREA, Weld, CO	Fail	State
2019-08-27	COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file	NUNN 14.8 MI. N OF, Weld, CO	Pass	State
2019-08-23	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	KEENESBURG 5.2 MI. N OF, Weld, CO	Pass	State
2019-08-23	OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file	WINDSOR, Weld, CO	Pass	State
2019-08-22	CONSERVATION SERVICES INC	AURORA 3.9 MI. NE OF, Adams, CO	Fail	State
2019-08-22	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2019-08-21	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2019-08-21	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	N/A	State
2019-08-20	PDC ENERGY - HARVESTERS STATE 7-15	GREELEY AREA, Weld, CO	Pass	State
2019-08-20	PDC ENERGY - HARVESTERS STATE 7-15	GREELEY AREA, Weld, CO	Pass	State
2019-08-16	CEMEX CONSTRUCTION MATERIALS - LYONS — high-priority violation on file	LYONS AREA, Boulder, CO	Pass	State
2019-08-16	OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file	WINDSOR, Weld, CO	Pass	State
2019-08-15	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2019-08-15	BISON IV - CRITTER CREEK 15 SE	GROVER 9.8 MI. W OF, Weld, CO	Pass	State
2019-08-15	HIGHPOINT - ANSCHUTZ EQUUS FARMS 3-62	ORCHARD 11.4 MI. N OF, Weld, CO	Pass	State
2019-08-14	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2019-08-14	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State
2019-08-14	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Pass	State
2019-08-14	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	GREELEY AREA, Weld, CO	Pass	State
2019-08-14	HIGHPOINT OPERATING -CIRCLE B 5-61-27 CS	ORCHARD 4.0 MI. N OF, Weld, CO	Pass	State
2019-08-13	LARAMIE ENERGY - CONN CREEK GAS — high-priority violation on file	PARACHUTE 10.1 MI. W OF, Garfield, CO	Pass	State

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