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
2023-08-10	PRAIRIE OPERATING CO - MEAD TANK BATTERY	Pass	State
2023-08-09	BAYSWATER E&P - LEFFLER 13, 14, 23, 24-2	N/A	State
2023-08-09	BAYSWATER E&P - LEFFLER 13, 14, 23, 24-2	N/A	State
2023-08-09	PRAIRIE OPERATING CO - G&D HANKS TANK	Pass	State
2023-08-08	PRAIRIE OPERATING - BOOTH 8-7HZ TANK	Pass	State
2023-08-07	PRAIRIE OPERATING - CALVARY FARMS NORTH	N/A	State
2023-08-07	PRAIRIE OPERATING CO - CALVARY FARMS S	Pass	State
2023-08-01	SPINDLE HILL ENERGY, LLC	N/A	State
2023-07-25	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2023-07-24	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2023-07-24	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2023-07-17	BONANZA CREEK - STATE SEVENTY HOLES P-4	Pass	State
2023-07-14	DUNAMIS ENERGY - COLORADO LAKES WELL PAD	Pass	State
2023-07-11	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-07-11	DCP OPERATING CO - WELLS RANCH CS	Pass	State
2023-07-11	DCP OPERATING CO - WELLS RANCH CS	Pass	State
2023-07-11	DCP OPERATING CO - WELLS RANCH CS	Pass	State
2023-07-11	DCP OPERATING CO - WELLS RANCH CS	Pass	State
2023-07-10	DCP OPERATING CO - ROCKY TURBINE CS	Pass	State
2023-07-10	DCP OPERATING CO - ROCKY TURBINE CS	Pass	State
2023-07-06	NOBLE ENERGY - WELLS RANCH AA24, AA23, B	Pass	State
2023-07-03	NOBLE ENERGY - CUTTHROAT,BROOK,RAINBOW	Pass	State
2023-06-29	PDC ENERGY, INC. - SANFORD 21-29 PAD	Fail	State
2023-06-28	PDC ENERGY, INC. - SANFORD 21-29 PAD	Fail	State
2023-06-27	PDC ENERGY, INC. - SANFORD 21-29 PAD	Fail	State
2023-06-26	PDC ENERGY - FAGERBERG 33-12	Pass	State
2023-06-26	PDC ENERGY - MCNEAR 10-9 PAD	Pass	State
2023-06-23	PDC -BLUFF FED/GREELY-ROTHE FED 16-1 PAD	Pass	State
2023-06-22	PDC ENERGY - GOETZEL 7-29 & 25-29 — high-priority violation on file	Pass	State
2023-06-20	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-06-19	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-06-16	PDC ENERGY - BOST FARM 5-7 PAD	Pass	State
2023-06-15	PUBLIC SERVICE CO - FORT SAINT VRAIN PLT	N/A	State
2023-06-15	PDC ENERGY - BEEBE 3-34 PAD	Pass	State
2023-06-15	PDC ENERGY, INC. - GOLDEN EAGLE HZ	Pass	State
2023-06-14	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-14	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-13	PRAIRIE OPERATING - BURROUGHS PROD FAC	Pass	State
2023-06-13	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-13	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-12	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-12	ROCKY MOUNTAIN MIDSTREAM - MUSTANG CS — high-priority violation on file	Pass	State
2023-06-06	DCP OPERATING CO - SULLIVAN C.S.	Pass	State
2023-05-23	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-05-23	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-05-23	DCP OPERATING CO - GODFREY BOTTOM C.S.	Pass	State
2023-05-23	DCP OPERATING CO - GODFREY BOTTOM C.S.	Pass	State
2023-05-15	PDC ENERGY - MCNEAR 10-9 PAD	Pass	State
2023-05-12	SUMMIT DJ-S - CENTENNIAL GAS PLANT	Pass	State
2023-05-10	COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file	Pass	State
2023-05-10	DCP OPERATING CO - SULLIVAN C.S.	Pass	State
2023-05-10	DCP OPERATING CO - SULLIVAN C.S.	Pass	State
2023-05-10	DCP OPERATING CO - TROUDT C.S.	Pass	State
2023-05-10	DCP OPERATING CO - TROUDT C.S.	Pass	State
2023-05-09	COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file	Pass	State
2023-05-09	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-05-09	DCP OPERATING CO - SULLIVAN C.S.	Pass	State
2023-05-06	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-05-04	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-05-04	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-05-03	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-05-03	DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file	Pass	State
2023-04-30	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-04-28	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-04-27	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-04-26	WES DJ GATHERING - FREDERICK CS — high-priority violation on file	Pass	State
2023-04-26	DCP OPERATING CO - 70 RANCH CS	Pass	State
2023-04-20	WES DJ GATHERING - VOLLMAR C.S.	Pass	State
2023-04-20	WES DJ GATHERING - VOLLMAR C.S.	Pass	State
2023-04-19	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-04-19	SUMMIT DJ-O OPERATING - KOKI — high-priority violation on file	Pass	State
2023-04-19	PRAIRIE OPERATING CO - SCHLOTTHAUER PROD	Pass	State
2023-04-18	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-04-17	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-04-17	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-14	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Pass	State
2023-04-14	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Pass	State
2023-04-13	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Pass	State
2023-04-13	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Pass	State
2023-04-12	WES DJ GATHERING - LATHAM GAS PLANT	Pass	State
2023-04-11	WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file	Pass	State
2023-04-11	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-11	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-11	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-10	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-10	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-10	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-10	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	N/A	State
2023-04-10	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Fail	State
2023-04-10	ROCKY MOUNTAIN MIDSTREAM - WEST BRIGHTON	Pass	State
2023-04-06	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-06	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - MEWBOURN — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State
2023-04-05	DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file	Pass	State

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