EPA Air · stack tests by county and year

Air-emissions stack tests in Weld County, Colorado, 2023

246Stack 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 2023. 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, 2023

Air-emissions stack tests in Weld County, other years

Air-emissions stack tests recorded in Weld County, Colorado, 2023

Date	Facility	Kind	Agency
2023-12-19	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-12-14	KERR-MCGEE O&G - PAUL NELSON 25-29HZ	Pass	State
2023-12-13	DCP OPERATING CO - SPINDLE GAS PLANT	Pass	State
2023-12-12	ROCKY MT MIDSTREAM- KEENESBURG GAS PLANT	Pass	State
2023-12-11	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-12-08	ASPHALT SPECIALTIES - STILES MINING RESO	Fail	State
2023-12-07	ASPHALT SPECIALTIES - STILES MINING RESO	N/A	State
2023-12-05	BONANZA CRK STATE NORTH PLATTE CPF 42-26	Fail	State
2023-12-05	BONANZA CRK STATE NORTH PLATTE CPF 42-26	Fail	State
2023-12-04	PDC ENERGY - FALKEN 9-11	Pass	State
2023-11-30	BIOCHAR NOW, LLC - BERTHOUD PLANT	Pass	State
2023-11-20	PDC ENERGY - WARD 20 SEC HZ	Pass	State
2023-11-14	PRAIRIE OPERATING CO - WEST EATON 2-A	Pass	State
2023-11-10	VERDAD RESOURCES - ROHN 1423 PAD	Pass	State
2023-11-09	VERDAD RESOURCES LLC - BOYDSTON 3535 PAD	Pass	State
2023-11-07	SOUTHERN STAR CENTRAL GAS PIPELINE CHEYE	Pass	State
2023-11-07	DCP OPERATING CO - LIBSACK C.S.	Pass	State
2023-11-03	VERDAD RESOURCES - PEGGY 2501-2525 PAD	Pass	State
2023-11-03	COVALENCE DJ, LLC - BIGFOOT 11	Pass	State
2023-11-02	BONANZA CREEK - STATE PRONGHORN CPF 41-3	Fail	State
2023-11-02	BONANZA CREEK - STATE ANTELOPE CPF O-1	Fail	State
2023-11-02	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-11-02	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-11-01	BONANZA CREEK - ANTELOPE CPF 13-21	Pass	State
2023-11-01	BONANZA CREEK - ANTELOPE CPF 13-21	Fail	State
2023-11-01	BONANZA CREEK - ANTELOPE CPF 13-21	Fail	State
2023-11-01	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-11-01	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-10-31	BONANZA CREEK - ANTELOPE CPF 13-21	Fail	State
2023-10-31	BONANZA CREEK - ANTELOPE CPF 13-21	Pass	State
2023-10-31	BONANZA CREEK - ANTELOPE CPF 13-21	Fail	State
2023-10-31	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-10-31	PDC ENERGY - BOST FARM 5-7 PAD	Fail	State
2023-10-30	BONANZA CRK STATE NORTH PLATTE CPF 42-26	Fail	State
2023-10-25	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-10-25	PRAIRIE OPERATING CO - PICKAROON TANK	Pass	State
2023-10-24	PDC - CECIL'S KERSEY FARM 17 SEC HZ	Pass	State
2023-10-20	BONANZA - LATHAM 11-13 PROD FACILITY	Pass	State
2023-10-17	COVALENCE DJ, LLC - BIGFOOT 11	Fail	State
2023-10-16	WASTE MANAGEMENT- BUFFALO RIDGE LANDFILL	N/A	State
2023-10-12	PDC ENERGY - LINCOLN STATE 3-18 PAD	Pass	State
2023-10-12	BONANZA - LATHAM 11-13 PROD FACILITY	Pass	State
2023-10-11	PDC ENERGY - LINCOLN STATE 3-18 PAD	Pass	State
2023-10-11	PDC ENERGY - LINCOLN STATE 3-18 PAD	Pass	State
2023-10-10	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-10-10	PDC ENERGY - LINCOLN STATE 3-18 PAD	N/A	State
2023-10-09	KERR-MCGEE - X10017 34002054 BROWN 35NHZ	Pass	State
2023-10-09	VERDAD RESOURCES - TIMBRO 9-59 8B PAD	Pass	State
2023-10-05	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-10-03	PDC ENERGY - WIEDEMAN/BOOMERANG PAD — high-priority violation on file	Pass	State
2023-10-03	PDC ENERGY - WIEDEMAN/BOOMERANG PAD — high-priority violation on file	Fail	State
2023-10-03	PDC ENERGY - WIEDEMAN/BOOMERANG PAD — high-priority violation on file	Pass	State
2023-10-03	PDC ENERGY - WIEDEMAN/BOOMERANG PAD — high-priority violation on file	N/A	State
2023-09-27	PDC ENERGY - MCNEAR 10-9 PAD	Pass	State
2023-09-27	PDC ENERGY - MCNEAR 10-9 PAD	Pass	State
2023-09-25	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-09-23	DENVER REGIONAL/FRONT RANGE LANDFILL — high-priority violation on file	Pass	State
2023-09-22	PDC ENERGY - KIEHN & WEIS	Pass	State
2023-09-22	PDC ENERGY INC - CALIFORNIA 14 SEC HZ	Pass	State
2023-09-15	DCP OPERATING CO - CROSSROADS FACILITY	N/A	State
2023-09-15	DCP OPERATING CO - CROSSROADS FACILITY	Pass	State
2023-09-15	PDC ENERGY - EVANS 7-26 PAD	Fail	State
2023-09-14	ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS	Pass	State
2023-09-14	BONANZA CREEK - STATE NORTH PLATTE T-36	Pass	State
2023-09-14	DUNAMIS ENERGY - IRISH WELL PAD	Pass	State
2023-09-14	PDC ENERGY - MCNEAR 10-9 PAD	Fail	State
2023-09-14	PDC ENERGY - MCNEAR 10-9 PAD	Pass	State
2023-09-14	DUNAMIS ENERGY - SASKATCHEWAN PAD	Pass	State
2023-09-13	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-13	DUNAMIS ENERGY - ORCA COMPRESSOR STATION	Pass	State
2023-09-13	DUNAMIS ENERGY - COLORADO RIVERS WELLPAD	Pass	State
2023-09-12	BONANZA CREEK ENERGY - ANTELOPE SECTION	Pass	State
2023-09-12	PDC ENERGY - EVANS 7-26 PAD	Fail	State
2023-09-12	PDC ENERGY - EVANS 7-26 PAD	Fail	State
2023-09-12	DUNAMIS ENERGY - ORCA COMPRESSOR STATION	Pass	State
2023-09-11	PDC ENERGY - EVANS 7-26 PAD	Fail	State
2023-09-11	DUNAMIS ENERGY - ALBERTA CITIES EAST PAD	Pass	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	N/A	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	N/A	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	N/A	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	N/A	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-06	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-05	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-05	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-05	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-09-05	DCP OPERATING CO - GREELEY NATURAL GAS P	Pass	State
2023-08-31	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Fail	State
2023-08-30	BISON IV - TRUE RANCH FEE 2326H	Pass	State
2023-08-23	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-08-17	DCP OPERATING CO - PLATTEVILLE GPP	Pass	State
2023-08-17	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2023-08-16	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2023-08-15	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2023-08-15	DCP OPERATING CO - O'CONNOR GAS PLANT	Pass	State
2023-08-15	SPELLBOUND ENERGY - AKBARY / 1A PAD	Pass	State
2023-08-15	PRAIRIE OPERATING - SIMPSON 36-1H	Pass	State
2023-08-15	SPELLBOUND ENERGY - DEPORTER / 29-A	Pass	State

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

What this page shows

This page covers Clean Air Act facilities in the EPA air register with stack tests in Weld county, CO, in 2023. It lists 246 stack tests recorded in 2023.