EPA Air · stack tests by state, industry and year
Pipeline transportation (NAICS 4862): stack tests in Colorado, 2025
- 17Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row is one stack test recorded during 2025 at a Colorado source whose primary industry code is NAICS 4862. A facility filing more than one industry code is counted under the first one on its record.
Pipeline transportation (NAICS 4862) in Colorado, other years
Other industries in Colorado, 2025
- Oil and gas extraction (NAICS 2111) 286
- Utilities (NAICS 2211) 34
- Nonmetallic mineral product manufacturing (NAICS 3273) 13
- Waste management and remediation (NAICS 5622) 10
- Fabricated metal product manufacturing (NAICS 3324) 9
- Petroleum and coal products manufacturing (NAICS 3241) 5
- Nonmetallic mineral product manufacturing (NAICS 3272) 5
- Merchant wholesalers, nondurable goods (NAICS 4247) 4
- Food manufacturing (NAICS 3115) 4
- Mining and quarrying (NAICS 2123) 3
- Beverage and tobacco manufacturing (NAICS 3121) 3
Air-emissions stack tests recorded in Colorado, 2025
| Date | Facility | Where | Kind | Agency |
|---|---|---|---|---|
| 2025-12-16 | COLORADO INTERSTATE GAS CO - GREASEWOOD | MEEKER 16.5 MI. SW OF, Rio Blanco, CO | Pass | State |
| 2025-11-04 | WYOMING INTERSTATE - SNAKE RIVER C.S. | CRAIG 37.2 MI. NW OF, Moffat, CO | Pass | State |
| 2025-11-04 | WYOMING INTERSTATE - SNAKE RIVER C.S. | CRAIG 37.2 MI. NW OF, Moffat, CO | Pass | State |
| 2025-10-30 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2025-10-29 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2025-10-28 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2025-04-18 | ROCKIES EXPRESS - HEREFORD RANCH CS | GROVER AREA, Weld, CO | Pass | State |
| 2025-04-17 | ROCKIES EXPRESS - HEREFORD RANCH CS | GROVER AREA, Weld, CO | Pass | State |
| 2025-04-16 | ROCKIES EXPRESS - LOGAN COUNTY CS | PEETZ AREA, Logan, CO | Pass | State |
| 2025-03-19 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2025-03-18 | NORTHWEST PIPELINE - RANGELY C.S. | RANGELY, Rio Blanco, CO | Pass | State |
| 2025-03-18 | COLORADO INTERSTATE GAS CO - CHEYENNE CS — high-priority violation on file | NUNN 14.8 MI. N OF, Weld, CO | Pass | State |
| 2025-03-17 | ROCKIES EXPRESS - LOGAN COUNTY CS | PEETZ AREA, Logan, CO | Pass | State |
| 2025-03-05 | COLORADO INTERSTATE GAS CO - SPRINGFIELD | LAMAR 20.4 MI. S OF, Prowers, CO | Pass | State |
| 2025-03-05 | COLORADO INTERSTATE GAS CO - SPRINGFIELD | LAMAR 20.4 MI. S OF, Prowers, CO | Pass | State |
| 2025-03-04 | COLORADO INTERSTATE GAS CO - SPRINGFIELD | LAMAR 20.4 MI. S OF, Prowers, CO | Pass | State |
| 2025-03-04 | COLORADO INTERSTATE GAS CO - SPRINGFIELD | LAMAR 20.4 MI. S OF, Prowers, CO | Pass | State |
Primary NAICS code as filed on the facility record; dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.