EPA Air · by county
Air-emissions sources in Weld County, Colorado
- 8,858Facilities
Every stationary source in Weld County, Colorado that holds a Clean Air Act permit or is otherwise tracked by an air agency — planned, under construction, operating, seasonal or temporarily closed. Sources EPA records as permanently closed are not listed.
By emissions classification in Weld County
A source’s classification is the size band its potential emissions put it in: a major source is large enough to need a Title V operating permit, a synthetic minor has accepted limits to stay below that line, and a minor source sits below it outright.
- Minor source 7,950
- Synthetic minor source 814
- Major source 89
Inspections in Weld County, by year
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source.
- 2026 inspections 125
- 2025 inspections 440
- 2024 inspections 387
- 2023 inspections 289
- 2022 inspections 246
- 2021 inspections 323
- 2020 inspections 265
- 2019 inspections 152
- 2018 inspections 153
- 2017 inspections 178
Violations in Weld County, by year
A high-priority violation is the most serious class of Clean Air Act non-compliance an agency records against a source; a federally reportable violation is the next step down in severity.
- 2026 violations 4
- 2025 violations 77
- 2024 violations 128
- 2023 violations 89
- 2022 violations 43
- 2021 violations 116
- 2020 violations 66
- 2019 violations 47
- 2018 violations 53
- 2017 violations 29
Stack tests in Weld County, by year
A stack test measures what a source actually emits, at the stack, against the limit in its permit.
- 2026 stack tests 72
- 2025 stack tests 186
- 2024 stack tests 170
- 2023 stack tests 246
- 2022 stack tests 207
- 2021 stack tests 160
- 2020 stack tests 208
- 2019 stack tests 197
- 2018 stack tests 83
- 2017 stack tests 103
Other counties in Colorado
Every county in the state with at least three sources on file.
- Morgan County 61
- Otero County 40
- Ouray County 3
- Park County 17
- Phillips County 22
- Pitkin County 16
- Prowers County 53
- Pueblo County 162
- Rio Blanco County 402
- Rio Grande County 27
- Routt County 45
- Saguache County 14
- San Miguel County 37
- Sedgwick County 15
- Summit County 33
- Teller County 18
- Undetermined County 1,500
- Washington County 85
- Yuma County 152
Facilities
| Facility↑↓ | Classification↑↓ | HPV |
|---|---|---|
| NOBLE ENERGY - BATTERY #11740000 | Minor source | No |
| NOBLE ENERGY - BATTERY #11828300 | Minor source | No |
| NOBLE ENERGY - BATTERY #414444017 | Minor source | No |
| NOBLE ENERGY - BATTERY #415668545 | Minor source | No |
| NOBLE ENERGY - BATTERY #415674178 | Minor source | No |
| NOBLE ENERGY - BATTERY #415674268 | Minor source | No |
| NOBLE ENERGY - BATTERY #415675591 | Minor source | No |
| NOBLE ENERGY - BATTERY #415676549 | Minor source | No |
| NOBLE ENERGY - BATTERY #415714286 | Minor source | No |
| NOBLE ENERGY - BATTERY #415720354 | Minor source | No |
| NOBLE ENERGY - BATTERY #415736145 | Minor source | No |
| NOBLE ENERGY - BATTERY #415737314 | Minor source | No |
| NOBLE ENERGY - BATTERY #415745285 | Minor source | No |
| NOBLE ENERGY - BATTERY #415745287 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747013 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747014 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747015 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747016 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747017 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747018 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747020 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747590 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747948 | Minor source | No |
| NOBLE ENERGY - BATTERY #415747949 | Minor source | No |
| NOBLE ENERGY - BATTERY #415749857 | Minor source | No |
| NOBLE ENERGY - BATTERY #415750509 | Minor source | No |
| NOBLE ENERGY - BATTERY #415750875 | Minor source | No |
| NOBLE ENERGY - BATTERY #415751171 | Minor source | No |
| NOBLE ENERGY - BATTERY #415751825 | Minor source | No |
| NOBLE ENERGY - BATTERY #415751828 | Minor source | No |
| NOBLE ENERGY - BATTERY #415751829 | Minor source | No |
| NOBLE ENERGY - BATTERY #415753712 | Minor source | No |
| NOBLE ENERGY - BATTERY #415753717 | Minor source | No |
| NOBLE ENERGY - BATTERY #415769745 | Minor source | No |
| NOBLE ENERGY - BATTERY #415770849 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771047 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771071 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771084 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771293 | Synthetic minor source | No |
| NOBLE ENERGY - BATTERY #415771314 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771383 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771384 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771397 | Minor source | No |
| NOBLE ENERGY - BATTERY #415771604 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779508 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779652 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779670 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779674 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779715 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779729 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779739 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779791 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779792 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779793 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779828 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779880 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779883 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779884 | Minor source | No |
| NOBLE ENERGY - BATTERY #415779913 | Minor source | No |
| NOBLE ENERGY - BATTERY #415780002 | Minor source | No |
| NOBLE ENERGY - BATTERY #415790666 | Minor source | No |
| NOBLE ENERGY - BATTERY #415790670 | Minor source | No |
| NOBLE ENERGY - BATTERY #415801234 | Minor source | No |
| NOBLE ENERGY - BATTERY #415804879 | Minor source | No |
| NOBLE ENERGY - BATTERY #415807955 | Synthetic minor source | No |
| NOBLE ENERGY - BATTERY #415809024 | Minor source | No |
| NOBLE ENERGY - BATTERY #415809466 | Minor source | No |
| NOBLE ENERGY - BATTERY #415810337 | Synthetic minor source | No |
| NOBLE ENERGY - BATTERY #415810388 | Minor source | No |
| NOBLE ENERGY - BATTERY #415814361 | Minor source | No |
| NOBLE ENERGY - BATTERY #415814674 | Minor source | No |
| NOBLE ENERGY - BATTERY #415814705 | Minor source | No |
| NOBLE ENERGY - BATTERY #415815505 | Minor source | No |
| NOBLE ENERGY - BATTERY #415815690 | Minor source | No |
| NOBLE ENERGY - BATTERY #415816241 | Minor source | No |
| NOBLE ENERGY - BATTERY #415816250 | Minor source | No |
| NOBLE ENERGY - BATTERY #415820528 | Synthetic minor source | No |
| NOBLE ENERGY - BATTERY #415821316 | Minor source | No |
| NOBLE ENERGY - BATTERY #415824060 | Minor source | No |
| NOBLE ENERGY - BATTERY #415824080 | Minor source | No |
| NOBLE ENERGY - BATTERY #415832869 | Minor source | No |
| NOBLE ENERGY - BATTERY #80087900 | Minor source | No |
| NOBLE ENERGY - BATTERY #81314500 | Minor source | No |
| NOBLE ENERGY - BATTERY #81338200 | Minor source | No |
| NOBLE ENERGY - BATTERY #91533500 | Minor source | No |
| NOBLE ENERGY - BATTERY 415811608 | Synthetic minor source | No |
| NOBLE ENERGY - BATTERY 415814362 | Minor source | No |
| NOBLE ENERGY - BATTEYR #415798369 | Minor source | No |
| NOBLE ENERGY - BAY L02 | Minor source | No |
| NOBLE ENERGY - BB DRAW ALEXANDER T3N-R65 | Minor source | No |
| NOBLE ENERGY - BB DRAW H T3N-R65W-S4 L05 | Minor source | No |
| NOBLE ENERGY - BECCA GUTTERSEN | Minor source | No |
| NOBLE ENERGY - BELL T5N-R64W-S29 L01 | Minor source | No |
| NOBLE ENERGY - BENSON T6N-R65W-S15 L01 | Minor source | No |
| NOBLE ENERGY - BERG FARMS T6N-R65W-S19 L | Minor source | No |
| NOBLE ENERGY - BERNHARDT T4N-R67W-S1 L02 | Minor source | No |
| NOBLE ENERGY - BERNHARDT T4N-R67W-S13L02 | Synthetic minor source | No |
| NOBLE ENERGY - BETHYL T8N-R63W-S29 L01 | Synthetic minor source | No |
| NOBLE ENERGY - BETZ REICHERT | Minor source | No |
| NOBLE ENERGY - BETZ ST T4N-R65W-S9 L01 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.