EPA Air · stack tests by county and year

Air-emissions stack tests in Weld County, Colorado, 2021

160Stack tests

A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Weld County, Colorado during 2021. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Weld County facility page.

Weld County, Colorado, 2021

Air-emissions stack tests in Weld County, other years

Air-emissions stack tests recorded in Weld County, Colorado, 2021

Date	Facility	Kind	Agency
2021-12-28	EXPEDITION WATER SOLUTIONS - EWS #13	Fail	State
2021-12-10	WES WATTENBURG - CENTRAL OIL STABIL	Pass	State
2021-12-09	BONANZA CREEK - ANTELOPE CPF 13-21	Pass	State
2021-12-07	DCP OPERATING CO - TROUDT C.S.	Pass	State
2021-11-19	DCP OPERATING CO - LIBSACK C.S.	Pass	State
2021-11-19	BIOCHAR NOW, LLC - BERTHOUD PLANT	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	Pass	State
2021-11-16	BONANZA CREEK - WETCO FARMS A-4 PAD	Pass	State
2021-11-09	HIGHPOINT - DUTCH LAKE 3-3H PAD	Pass	State
2021-11-03	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	N/A	State
2021-11-03	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	Pass	State
2021-11-03	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	N/A	State
2021-11-03	BONANZA CREEK ENERGY- NORTH PLATTE 14-36	Pass	State
2021-10-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-28	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-28	BONANZA CRK ENERGY - NORTH PLATTE 24-34	Pass	State
2021-10-27	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-27	KERR MCGEE - MUSTANG 14-26 PROD FACIL	Pass	State
2021-10-27	KERR MCGEE - MUSTANG 14-26 PROD FACIL	Fail	State
2021-10-26	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-25	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-19	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-18	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2021-10-14	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-10-14	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-10-13	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-10-12	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-10-11	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-10-04	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2021-10-04	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2021-09-23	SUMMIT MIDSTREAM NIOBR - ANGUS COMPR STN	Pass	State
2021-09-23	SUMMIT MIDSTREAM NIOBR - ANGUS COMPR STN	Pass	State
2021-09-23	ASPHALT SPECIALTIES - ROAD 6 ASPHALT PLA	Pass	State
2021-09-22	SUMMIT MIDSTREAM NIOBR - HEREFORD RANCH	Pass	State
2021-09-22	SUMMIT MIDSTREAM NIOBR - ANGUS COMPR STN	Pass	State
2021-09-14	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2021-09-09	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-09-03	BONANZA CREEK - STATE NORTH PLATTE T-36	Fail	State
2021-09-02	BONANZA CREEK - STATE NORTH PLATTE T-36	Fail	State
2021-09-02	BONANZA CREEK - STATE NORTH PLATTE T-36	Fail	State
2021-09-02	BONANZA CREEK - STATE NORTH PLATTE T-36	Fail	State
2021-09-01	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2021-08-25	DCP OPERATING CO - GODFREY BOTTOM C.S.	Pass	State
2021-08-25	DCP OPERATING CO - GODFREY BOTTOM C.S.	Pass	State
2021-08-24	DCP OPERATING CO - CROSSROADS FACILITY	Pass	State
2021-08-23	DCP OPERATING CO - ROCKY TURBINE CS	Pass	State
2021-08-23	DCP OPERATING CO - ROCKY TURBINE CS	Pass	State
2021-08-23	DCP OPERATING CO - CROSSROADS FACILITY	Pass	State
2021-08-19	KERR-MCGEE - MUSTANG 44-22 PRODUCTION	Fail	State
2021-08-17	KERR MCGEE - MUSTANG Y-34 PRODUCTION FAC	Pass	State
2021-08-16	BONANZA CREEK - LONGHORN U-10 PROD FAC	Fail	State
2021-08-11	NOBLE ENERGY - WELLS RANCH AA24, AA23, B	Pass	State
2021-08-10	BONANZA CREEK - ANTELOPE CPF 13-21	Pass	State
2021-07-30	WILLIAMS FRONT RANGE - TIGER COMPRESSOR	Pass	State
2021-07-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-07-29	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-07-29	REP PROCESSING LLC - PIERCE GAS PLANT	Pass	State
2021-07-13	ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS	Pass	State
2021-07-08	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-07-08	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-07-07	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-07-07	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-07-06	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-07-06	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-06-29	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-06-24	LEPRINO FOODS COMPANY - GREELEY PLANT	Pass	State
2021-06-24	LEPRINO FOODS COMPANY - GREELEY PLANT	Pass	State
2021-06-10	WES DJ GATHERING - ST. VRAIN C.S.	Pass	State
2021-06-03	WES DJ GATHERING - LATHAM GAS PLANT	Pass	State
2021-06-03	HIGHPOINT OPERATING -CIRCLE B 5-61-27 CS	Pass	State
2021-06-02	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2021-05-27	PUBLIC SERVICE CO - FORT SAINT VRAIN PLT	Pass	State
2021-05-25	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2021-05-25	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2021-05-24	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2021-05-24	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2021-05-21	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-05-21	ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT	N/A	State
2021-05-20	WILLIAMS FRONT RANGE - TIGER COMPRESSOR	Pass	State
2021-05-20	ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT	Fail	State
2021-05-19	ROCKY MOUNTAIN MIDSTREAM - FT LUPTON GAS	Pass	State
2021-05-19	ROCKY MOUNTAIN MIDSTREAM - FT LUPTON GAS	Pass	State
2021-05-15	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-05-12	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2021-05-12	BONANZA CRK STATE NORTH PLATTE CPF 42-26	Pass	State
2021-05-11	BONANZA CRK STATE NORTH PLATTE CPF 42-26	Pass	State
2021-05-07	WES DJ GATHERING - HUDSON STATION — high-priority violation on file	Pass	State
2021-05-06	WES DJ GATHERING - HUDSON STATION — high-priority violation on file	Pass	State
2021-05-05	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2021-04-29	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	Pass	State
2021-04-29	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	Pass	State
2021-04-28	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	Pass	State
2021-04-28	ROCKY MOUNTAIN MIDSTREAM - AUBURN CS	Pass	State

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