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
Inspections in Weld County, year by year · Violations in Weld County, year by year · Stack tests in Weld County, year by year
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 |
|---|---|---|
| PDC ENERGY - BERNHARDT 6K-323, 403; 6O-2 | Minor source | No |
| PDC ENERGY - BERNHARDT FARMS 13S-203,323 | Synthetic minor source | No |
| PDC ENERGY - BERNHARDT HULL T4N-R67W-S1 | Minor source | No |
| PDC ENERGY - BERNHARDT LUNDVALL T5N-R66W | Minor source | No |
| PDC ENERGY - BERNHARDT T4N-R66W-S6 L01 | Minor source | No |
| PDC ENERGY - BERNHARDT VETTER T4NR67W-S1 | Synthetic minor source | No |
| PDC ENERGY - BERTHA C.LORENZE FEDERAL UN | Minor source | No |
| PDC ENERGY - BESTWAY PAD | Synthetic minor source | No |
| PDC ENERGY - BICKLING MEL 11-22 | Minor source | No |
| PDC ENERGY - BIG BEND UPRR 41-19 2 | Minor source | No |
| PDC ENERGY - BIGBEND UPRR T4N-R66W-S19 L | Minor source | No |
| PDC ENERGY - BIHAIN 26 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BINDER 14-3 | Minor source | No |
| PDC ENERGY - BLACK HOLLOW UNIT | Minor source | No |
| PDC ENERGY - BLAKE MELVIN T4N-R66W-S12 L | Minor source | No |
| PDC ENERGY - BLANCA 29 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BLEHM 1, N 26-5 & BOOTH 13- | Minor source | No |
| PDC ENERGY - BLEHM NYC T5N-R67W-S24 L01 | Minor source | No |
| PDC ENERGY - BOLET 44-17 | Minor source | No |
| PDC ENERGY - BONERTZ 1 | Minor source | No |
| PDC ENERGY - BOOTH 11, 12-25 | Minor source | No |
| PDC ENERGY - BOOTH 26 SEC TANK BATTERY | Synthetic minor source | No |
| PDC ENERGY - BOOTH 3, 4, 29, 30, 31-23 | Minor source | No |
| PDC ENERGY - BOOTH 33, 34, 44-31 U&31D U | Minor source | No |
| PDC ENERGY - BOOTH 9, 16-26 | Minor source | No |
| PDC ENERGY - BOOTH N 25-03, 04, 05, 06, | Minor source | No |
| PDC ENERGY - BOOTH T5N-R67W-S25 L03 | Minor source | No |
| PDC ENERGY - BOOTH T5N-R67W-S26 L02 | Minor source | No |
| PDC ENERGY - BOST FARM 5-7 PAD | Synthetic minor source | No |
| PDC ENERGY - BOSWORTH-BAILEY 9,20,16-31 | Minor source | No |
| PDC ENERGY - BOULTER FARMS 27 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BRANDON, SEBASTYEN PAD | Minor source | No |
| PDC ENERGY - BRANDONI 1 | Minor source | No |
| PDC ENERGY - BREHON LORENZ LYNCH T4N-F65 | Minor source | No |
| PDC ENERGY - BRIGGS AGG 1-25 | Minor source | No |
| PDC ENERGY - BROSS FEDERAL 33 SEC HZ | Minor source | No |
| PDC ENERGY - BROWN 11, 12, 22-2 | Minor source | No |
| PDC ENERGY - BROWN 23 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BRUEGMAN SOUTH EG 34 | Minor source | No |
| PDC ENERGY - BUCKLEN T6N-R65W-S2 L | Minor source | No |
| PDC ENERGY - BUFFALO GARDENS 41-13 | Minor source | No |
| PDC ENERGY - BUNN 01-34 | Minor source | No |
| PDC ENERGY - BUNN 1-35, I 35-25 | Minor source | No |
| PDC ENERGY - BUNTING 26 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BURR FD PAD | Synthetic minor source | No |
| PDC ENERGY - BUXMAN 33-6 | Minor source | No |
| PDC ENERGY - BUXMAN T6N-R66W-S33 L | Minor source | No |
| PDC ENERGY - BYPASS STATE 18 SEC HZ | Minor source | No |
| PDC ENERGY - CACHE 17-52 17-21 | Minor source | No |
| PDC ENERGY - CACHE 8-54 & 8-44 | Minor source | No |
| PDC ENERGY - CACHE MAIN BATTERY | Minor source | No |
| PDC ENERGY - CALVIN T5N-R66W-S21 L | Minor source | No |
| PDC ENERGY - CAMENISCH SUPREME CAMP T4N- | Minor source | No |
| PDC ENERGY - CAMENISCH T5N-R66W-S33 L01 | Minor source | No |
| PDC ENERGY - CAMERON 12, 13, 19-15 | Minor source | No |
| PDC ENERGY - CAMPBELL JF PAD | Minor source | No |
| PDC ENERGY - CANNON PAD | Synthetic minor source | No |
| PDC ENERGY - CAPITOL SEC 36 HZ | Minor source | No |
| PDC ENERGY - CARGO G19-67HC | Minor source | No |
| PDC ENERGY - CARLSON 14, 23, 24-2D, 2BD, | Minor source | No |
| PDC ENERGY - CARMICHAEL 26M-223, 26R-203 | Minor source | No |
| PDC ENERGY - CASTLE 29 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - CECIL 11, 21-12 | Minor source | No |
| PDC ENERGY - CECIL 31, 41-2 | Minor source | No |
| PDC ENERGY - CHALK-SEELEY FEDERAL 26 SEC | Synthetic minor source | No |
| PDC ENERGY - CHANDLER FARMS HD PAD | Synthetic minor source | No |
| PDC ENERGY - CHESNUT 21 PAD | Synthetic minor source | No |
| PDC ENERGY - CHESNUT 27 PAD | Synthetic minor source | No |
| PDC ENERGY - CHESNUT 28 PAD | Synthetic minor source | No |
| PDC ENERGY - CHRISTIANSEN T6N-R67W | Minor source | No |
| PDC ENERGY - CHURCHILL 28 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - CITY OF GREELEY T5N-R | Minor source | No |
| PDC ENERGY - CITY OF GREELEY T5N-R | Minor source | No |
| PDC ENERGY - CLARENCE T6N-R65W-S18 | Minor source | No |
| PDC ENERGY - CLARENCE T6N-R65W-S18 | Minor source | No |
| PDC ENERGY - CLARK 1-25 TANK BATTERY | Minor source | No |
| PDC ENERGY - CLEMENT, R EWING | Minor source | No |
| PDC ENERGY - COCKROFT 10-4 | Minor source | No |
| PDC ENERGY - COCKROFT 19 SEC PAD | Synthetic minor source | No |
| PDC ENERGY - COLLINS 18Q-221, 301; 18T-2 | Minor source | No |
| PDC ENERGY - CONLIN HOLMES FEDERAL | Minor source | No |
| PDC ENERGY - CONNIE 26E-332, 402; 26F... | Synthetic minor source | No |
| PDC ENERGY - CORNISH 14-8 | Minor source | No |
| PDC ENERGY - CORNISH 17-11 BATTERY | Minor source | No |
| PDC ENERGY - COYLE WELLS | Minor source | No |
| PDC ENERGY - DAISY 31 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - DALTON 24L-201, 441 | Minor source | No |
| PDC ENERGY - DALTON 24Q-241, 441 | Minor source | No |
| PDC ENERGY - DANIELS T4N-R66W-S5 L06 | Minor source | No |
| PDC ENERGY - DEROO MEINING T4N-R66W-S30 | Minor source | No |
| PDC ENERGY - DETIENNE FD 10, 16 PAD | Minor source | No |
| PDC ENERGY - DIANA 6T-321, 241, 401; 6Q | Minor source | No |
| PDC ENERGY - DICKENS T5N R65W S32 | Minor source | No |
| PDC ENERGY - DICKENS T5N R65W S32 | Minor source | No |
| PDC ENERGY - DILKA 6-11-12 | Minor source | No |
| PDC ENERGY - DINNER #14-B-1 | Minor source | No |
| PDC ENERGY - DINNER #18-A2 & #18-B4 ( | Minor source | No |
| PDC ENERGY - DINNER 2 & E2 | Minor source | No |
| PDC ENERGY - DINNER 6-5-14, 14, E1, 1 | Minor source | No |
| PDC ENERGY - DINNER LOIST4N-R66W-S13 L02 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.