EPA Air · stack tests by county and year
Air-emissions stack tests in Weld County, Colorado, 2025
- 186Stack 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 2025. 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, 2025
Air-emissions stack tests in Weld County, other years
Air-emissions stack tests recorded in Weld County, Colorado, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-05-23 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | Pass | State |
| 2025-05-23 | DCP OPERATING CO - LUCERNE 2 GAS PLANT — high-priority violation on file | Pass | State |
| 2025-05-22 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | Pass | State |
| 2025-05-21 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | Pass | State |
| 2025-05-20 | LEPRINO FOODS COMPANY - GREELEY PLANT | Pass | State |
| 2025-05-20 | LEPRINO FOODS COMPANY - GREELEY PLANT | Pass | State |
| 2025-05-20 | NOBLE ENERGY - WELLS RANCH AA11 ECONODE | Pass | State |
| 2025-05-14 | BONANZA CREEK - NORTH PLATTE SECTION 34 | Pass | State |
| 2025-05-13 | EXTRACTION - WINDSOR LV2 PROD FACILITY | Pass | State |
| 2025-05-06 | DCP OPERATING CO - GODFREY BOTTOM C.S. | Pass | State |
| 2025-05-06 | DCP OPERATING CO - GODFREY BOTTOM C.S. | Pass | State |
| 2025-05-05 | DCP OPERATING - CANVASBACK C.S. | Pass | State |
| 2025-04-30 | PAWNEE WASTE - PAWNEE WASTE E&P LANDFILL | Fail | State |
| 2025-04-29 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Fail | State |
| 2025-04-29 | SUMMIT DJ-S - GROVER COMPRESSOR STATION | Pass | State |
| 2025-04-29 | PRAIRIE OPERATING - ELDER PAD | Pass | State |
| 2025-04-25 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-25 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-24 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | Pass | State |
| 2025-04-24 | NOBLE ENERGY - LC24-6 ECONODE T9N-R59W-S | Pass | State |
| 2025-04-23 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | Pass | State |
| 2025-04-22 | WES DJ GATHERING - FREDERICK CS — high-priority violation on file | N/A | State |
| 2025-04-21 | SUMMIT DJ-O OPERATING - MAKENA GAS PLANT | Pass | State |
| 2025-04-18 | ROCKIES EXPRESS - HEREFORD RANCH CS | Pass | State |
| 2025-04-17 | ROCKIES EXPRESS - HEREFORD RANCH CS | Pass | State |
| 2025-04-16 | WES DJ GATHERING - LATHAM GAS PLANT | Pass | State |
| 2025-04-15 | DCP OPERATING CO - NORTHSTAR C.S. | Pass | State |
| 2025-04-15 | DCP OPERATING CO - NORTHSTAR C.S. | Pass | State |
| 2025-04-15 | ROCKY MOUNTAIN MIDSTREAM - AUBURN CS | Fail | State |
| 2025-04-14 | DCP OPERATING CO - MILTON C.S. | Pass | State |
| 2025-04-14 | DCP OPERATING CO - MILTON C.S. | Pass | State |
| 2025-04-13 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-10 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-10 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-10 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | Pass | State |
| 2025-04-09 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-09 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-09 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | Pass | State |
| 2025-04-09 | DCP OPERATING CO - ENTERPRISE C.S. — high-priority violation on file | Pass | State |
| 2025-04-09 | PLATTE RIVER BIOGAS - 19179 CR 49 | Pass | State |
| 2025-04-09 | EXTRACTION - TRIPLE CREEK PRODUCTION | Pass | State |
| 2025-04-09 | EXTRACTION - TRIPLE CREEK PRODUCTION | N/A | State |
| 2025-04-08 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-04-08 | EXTRACTION - TRIPLE CREEK PRODUCTION | Pass | State |
| 2025-04-07 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-07 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-07 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-07 | DCP OPERATING CO - MEWBOURN — high-priority violation on file | Pass | State |
| 2025-04-04 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-04-04 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-04-04 | NOBLE ENERGY-WELLS RANCH AE 30 ECONODE — high-priority violation on file | Pass | State |
| 2025-04-04 | NOBLE ENERGY - WELLS RANCH AA33 ECONODE | Pass | State |
| 2025-04-03 | NOBLE ENERGY - WELLS RANCH BB11 ECONODE | Pass | State |
| 2025-04-02 | EXTRACTION - ARDREY PRODUCTION FACILITY | Pass | State |
| 2025-04-02 | EXTRACTION - ARDREY PRODUCTION FACILITY | Pass | State |
| 2025-03-26 | HIGHPOINT - ANSCHUTZ STATE 5-62-22_23 SW | Pass | State |
| 2025-03-25 | HIGHPOINT - SIEBRING 5-63-32 SENE PRODUC | Pass | State |
| 2025-03-19 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | Pass | State |
| 2025-03-19 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-03-18 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | Pass | State |
| 2025-03-18 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-03-18 | NOBLE ENERGY - HULLABALOO Y16-28-A ECONO | Pass | State |
| 2025-03-12 | COVALENCE DJ, LLC - BIGFOOT 11 | Fail | State |
| 2025-03-07 | PUBLIC SERVICE CO - FORT SAINT VRAIN PLT | Pass | State |
| 2025-03-05 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-03-04 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-03-04 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-03-03 | ROCKIES EXPRESS PIPELINE-CHEYENNE HUB CS | Pass | State |
| 2025-02-24 | WES WATTENBURG - CENTRAL OIL STABIL | Pass | State |
| 2025-02-24 | PDC ENERGY - BEEBE 3-34 PAD | Fail | State |
| 2025-02-24 | PDC ENERGY - BEEBE 3-34 PAD | Fail | State |
| 2025-02-21 | BONANZA CREEK - WETCO FARMS A-4 PAD | Pass | State |
| 2025-02-21 | PDC ENERGY - BEEBE 3-34 PAD | Fail | State |
| 2025-02-20 | PDC ENERGY - BEEBE 3-34 PAD | Pass | State |
| 2025-02-19 | PDC ENERGY - BEEBE 3-34 PAD | Pass | State |
| 2025-02-18 | PDC ENERGY - BEEBE 3-34 PAD | Pass | State |
| 2025-02-17 | HIGHPOINT - WETCO 4-63-4 SW PRODUCTION | Pass | State |
| 2025-02-14 | PRAIRIE OPERATING CO - SCHLOTTHAUER PROD | Pass | State |
| 2025-02-07 | ROCKY MOUNTAIN MIDSTREAM - FT LUPTON GAS | Pass | State |
| 2025-02-06 | KODAK ALARIS - KODAK MOMENTS COLORADO — high-priority violation on file | Pass | State |
| 2025-02-06 | WES DJ FT LUPTON/PLATTE VALLEY/LANCASTER — high-priority violation on file | Pass | State |
| 2025-02-04 | KODAK ALARIS - KODAK MOMENTS COLORADO — high-priority violation on file | Pass | State |
| 2025-01-29 | PDC ENERGY - WILLIAMS PAD | Pass | State |
| 2025-01-23 | OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file | Pass | State |
| 2025-01-22 | OWENS-BROCKWAY GLASS - WINDSOR #28 — high-priority violation on file | Pass | State |
| 2025-01-14 | NOBLE ENERGY - WELLS RANCH AE05, 06 ECON | Pass | State |
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Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.