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
2020-05-14	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-14	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-05-13	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-13	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-13	RED CEDAR GATHERING COMPANY - PUMP CANYON COMPRESSOR STATION	LA PLATA COUNTY, La Plata, CO	Pass	State
2020-05-12	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-12	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-11	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	KERSEY AREA, Weld, CO	Pass	State
2020-05-11	RED CEDAR GATHERING COMPANY - MIDWAY COMPRESSOR STATION	IGNACIO, La Plata, CO	Pass	State
2020-05-07	WES DJ GATHERING - HUDSON STATION — high-priority violation on file	HUDSON AREA, Weld, CO	Pass	State
2020-05-06	WES DJ GATHERING - HUDSON STATION — high-priority violation on file	HUDSON AREA, Weld, CO	Pass	State
2020-05-04	ARKOMA OPERATIONS, LLC - IGNACIO GAS TREATING PLANT	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-05-01	EAGLE CNTY ROAD & BRIDGE DEPT	EDWARDS AREA, Eagle, CO	Pass	State
2020-04-30	COORSTEK, INC. - CENTER FOR ADVANCED MAT	GOLDEN, Jefferson, CO	Fail	State
2020-04-29	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-04-27	SUMMIT DJ-S - GROVER COMPRESSOR STATION	GROVER 11.4 MI. SE OF, Weld, CO	Pass	State
2020-04-24	PLAINS END, LLC	ARVADA, Jefferson, CO	Pass	State
2020-04-24	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-04-23	CF & I STEEL L.P. DBA EVRAZ ROCKY MTN ST — high-priority violation on file	PUEBLO AREA, Pueblo, CO	Pass	State
2020-04-23	CF & I STEEL L.P. DBA EVRAZ ROCKY MTN ST — high-priority violation on file	PUEBLO AREA, Pueblo, CO	Pass	State
2020-04-23	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-04-23	RED CEDAR GATHERING COMPANY - ARKANSAS LOOP AND SIMPSON TREATING PLANTS	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-04-22	MID-AMERICA PIPELINE CO DOVE CR STA	DOVE CREEK 5.3 MI. NW OF, Dolores, CO	Pass	State
2020-04-22	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-04-22	ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT	KEENESBURG, Weld, CO	Pass	State
2020-04-21	SUMMIT DJ-S - JACKSON LAKE GAS PLANT — high-priority violation on file	WELDONA, Morgan, CO	Pass	State
2020-04-21	SUMMIT DJ-S - JACKSON LAKE GAS PLANT — high-priority violation on file	WELDONA, Morgan, CO	Pass	State
2020-04-21	SUMMIT DJ-S - JACKSON LAKE GAS PLANT — high-priority violation on file	WELDONA, Morgan, CO	Pass	State
2020-04-21	WES DJ GATHERING - LATHAM GAS PLANT	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-04-21	SIMCOE - MIERA CENTRAL DELIVERY POINT	LA PLATA COUNTY, La Plata, CO	Pass	U.S. EPA
2020-04-20	WES DJ GATHERING - LATHAM GAS PLANT	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-04-17	WES DJ GATHERING - LATHAM GAS PLANT	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-04-17	EXTRACTION - ENRIGHT PRODUCTION FAC	BERTHOUD AREA, Weld, CO	Pass	State
2020-04-17	EXTRACTION - ENRIGHT PRODUCTION FAC	BERTHOUD AREA, Weld, CO	Pass	State
2020-04-16	WES DJ GATHERING - LATHAM GAS PLANT	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-04-15	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	FORT LUPTON, Weld, CO	Pass	State
2020-04-15	EXTRACTION - WINDSOR LV2 PROD FACILITY	SEVERANCE AREA, Weld, CO	Pass	State
2020-04-15	EXTRACTION - WINDSOR LV2 PROD FACILITY	SEVERANCE AREA, Weld, CO	Pass	State
2020-04-14	NATURAL SODA LLC	RANGELY 22.5 MI. SE OF, Rio Blanco, CO	Pass	State
2020-04-13	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	KERSEY, Weld, CO	Pass	State
2020-04-10	LARAMIE ENERGY - MVS COMPRESSOR STATION	COLLBRAN 10.8 MI. E OF, Mesa, CO	Pass	State
2020-04-10	LARAMIE ENERGY - MVS COMPRESSOR STATION	COLLBRAN 10.8 MI. E OF, Mesa, CO	Pass	State
2020-04-09	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2020-04-09	PDC ENERGY - POSTLE IC WEST	MEAD AREA, Weld, CO	Pass	State
2020-04-09	PDC ENERGY - MARCUS LD PAD	THORNTON AREA, Weld, CO	Pass	State
2020-04-08	AMRIZE PORTLAND PLANT — high-priority violation on file	FLORENCE 3.8 MI. E OF, Fremont, CO	Pass	State
2020-04-08	PDC ENERGY - SIMPSON FD PAD	WINDSOR AREA, Weld, CO	Pass	State
2020-04-03	WILLIAMS FRONT RANGE - TIGER COMPRESSOR	HUDSON, Weld, CO	Pass	State
2020-04-03	WILLIAMS FRONT RANGE - TIGER COMPRESSOR	HUDSON, Weld, CO	Pass	State
2020-04-02	NOBLE ENERGY - LD01 & LD12 ECONODE GEN I	RAYMER 11.0 MI. N OF, Weld, CO	Pass	State
2020-04-02	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-04-02	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-04-01	EXTRACTION O&G - PRAIRIE CENTER PROD FAC	BRIGHTON AREA, Adams, CO	Pass	State
2020-04-01	ANHEUSER-BUSCH, LLC	FORT COLLINS, Larimer, CO	Pass	State
2020-04-01	NOBLE ENERGY - CUTTHROAT,BROOK,RAINBOW	RAYMER (NEW RAYMER) 10.0 MI. N, Weld, CO	Pass	State
2020-04-01	WILLIAMS FRONT RANGE - TIGER COMPRESSOR	HUDSON, Weld, CO	Pass	State
2020-03-31	REP PROCESSING LLC - PIERCE GAS PLANT	PIERCE, Weld, CO	Pass	State
2020-03-30	ARKOMA OPERATIONS, LLC - IGNACIO GAS TREATING PLANT	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-03-29	RED CEDAR GATHERING COMPANY - SAMBRITO COMPRESSOR STATION	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-03-26	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-26	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-26	RED CEDAR GATHERING COMPANY - SOUTH IGNACIO CENTRAL DEL	SOUTHERN UTE RESERVATION, La Plata, CO	Fail	State
2020-03-25	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-25	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-25	DCP OPERATING CO - MEWBOURN — high-priority violation on file	GILCREST 2.4 MI. N OF, Weld, CO	Pass	State
2020-03-25	DCP OPERATING CO - NORTHSTAR C.S.	EATON 3.4 MI. N OF, Weld, CO	Pass	State
2020-03-25	DCP OPERATING CO - NORTHSTAR C.S.	EATON 3.4 MI. N OF, Weld, CO	Pass	State
2020-03-24	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-24	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-24	DCP OPERATING CO - MILTON C.S.	LA SALLE 8.3 MI. N OF, Weld, CO	Pass	State
2020-03-24	DCP OPERATING CO - MILTON C.S.	LA SALLE 8.3 MI. N OF, Weld, CO	Pass	State
2020-03-23	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-23	QB ENERGY OPERATING - STORY GULCH C.S. — high-priority violation on file	PARACHUTE 13.8 MI. N OF, Garfield, CO	Pass	State
2020-03-19	PDC ENERGY - LEFFLER 8-21, DONN 1-21 PAD	GREELEY, Weld, CO	Fail	State
2020-03-19	SOUTHERN STAR CENTRAL GAS PIPELINE -YUMA	YUMA 5.9 MI. N OF, Yuma, CO	Pass	State
2020-03-18	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	NUNN 18.4 MI. N OF, Weld, CO	Pass	State
2020-03-17	PDC ENERGY - BEEBE 3-34 PAD	GREELEY, Weld, CO	Pass	State
2020-03-17	PDC ENERGY - BEEBE 3-34 PAD	GREELEY, Weld, CO	Pass	State
2020-03-17	PDC ENERGY - BEEBE 3-34 PAD	GREELEY, Weld, CO	Pass	State
2020-03-17	EXTRACTION - HERGERT - LAUNER PRODUC	SEVERANCE AREA, Weld, CO	Pass	State
2020-03-17	EXTRACTION - HERGERT - LAUNER PRODUC	SEVERANCE AREA, Weld, CO	Pass	State
2020-03-17	EXTRACTION - ENRIGHT PRODUCTION FAC	BERTHOUD AREA, Weld, CO	Pending	State
2020-03-16	WEXPRO CO HIAWATHA OIL FIELD (MOSU)	DINOSAUR 55.7 MI. NE OF, Moffat, CO	Pass	State
2020-03-16	PDC ENERGY - BEEBE 3-34 PAD	GREELEY, Weld, CO	Pass	State
2020-03-13	RED CEDAR GATHERING COMPANY - SAMBRITO COMPRESSOR STATION	SOUTHERN UTE RESERVATION, La Plata, CO	Pass	State
2020-03-11	COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file	NUNN 14.8 MI. N OF, Weld, CO	Pass	State
2020-03-10	COORSTEK, INC. - CENTER FOR ADVANCED MAT	GOLDEN, Jefferson, CO	Pass	State
2020-03-10	COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file	NUNN 14.8 MI. N OF, Weld, CO	Pass	State
2020-03-06	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-06	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-05	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-05	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-04	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-04	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-03	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-03	BARGATH, LLC - HYRUP PROD FACILITY — high-priority violation on file	PARACHUTE 4.3 MI. S OF, Garfield, CO	Pass	State
2020-03-02	TRI STATE GENERATION & TRANS - CRAIG	CRAIG 2.9 MI. SW OF, Moffat, CO	Pass	State
2020-02-27	REP PROCESSING LLC - PIERCE GAS PLANT	PIERCE, Weld, CO	Pass	State
2020-02-20	COORSTEK, INC. - CENTER FOR ADVANCED MAT	GOLDEN, Jefferson, CO	Pass	State
2020-02-20	NOBLE ENERGY-WELLS RANCH AE 30 ECONODE — high-priority violation on file	KERSEY 10.6 MI. NE OF, Weld, CO	N/A	State

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