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 BENSON 1-15 | Minor source | No |
| PDC BENSON 24-15 | Minor source | No |
| PDC BERNHARDT 13-A | Minor source | No |
| PDC BERNHARDT 24C/ KRISTEN 1/ SARAH 1 | Minor source | No |
| PDC BETHANIE 1/ KATHLYN 1 | Minor source | No |
| PDC BJB 1, 2, 3, 4, 5, 6I | Minor source | No |
| PDC BLACKGOLD 1, 2, 3, 5 | Minor source | No |
| PDC BLOSKAS 1, 12-9 | Minor source | No |
| PDC BONERTZ 41-10 | Minor source | No |
| PDC BOOTH 11, 12, 21, 22-31 U & 31A U | Minor source | No |
| PDC BOOTH 14, 23, 24, 33, 34-35 | Minor source | No |
| PDC BRIGGS AGGREGATE 2, 3-25 | Minor source | No |
| PDC BROWN 1-23 | Minor source | No |
| PDC BROWN 13, 14, 23, 24-2 | Minor source | No |
| PDC BROWN 20-1, CYPRUS 1 | Minor source | No |
| PDC BROWN 20AD, OD, MD, ND/ RYLAND 31... | Minor source | No |
| PDC BROWN 22-20 | Minor source | No |
| PDC BROWN 30-2, 30-31 | Minor source | No |
| PDC BUDAGHER 11-13/RILEY 21-13; 5 | Minor source | No |
| PDC BUDERUS 1, 2-23 | Minor source | No |
| PDC BUDERUS 12, 13-23 | Minor source | No |
| PDC BUNTING 1 | Minor source | No |
| PDC BUNTING 27-43 | Minor source | No |
| PDC CAESAR 1-14 | Minor source | No |
| PDC CAESAR 2-21 | Minor source | No |
| PDC CANNON FARMS 1-35C | Minor source | No |
| PDC CARACCIOLI 1 | Minor source | No |
| PDC CARLSON 14-43 | Minor source | No |
| PDC CARLSON 29-1 | Minor source | No |
| PDC CASS 1; 5 /JAN 1 | Minor source | No |
| PDC CATTLEMAN 13, 14, 23, 24-31D | Minor source | No |
| PDC CBO 11, 21-32 | Minor source | No |
| PDC CBO 12, 13, 22, 23-32 | Minor source | No |
| PDC CBO 14, 24-32 | Minor source | No |
| PDC CHESNUT 1, 3, 5 | Minor source | No |
| PDC CHISMAR 19-21, 22, 24/ SHEEP DRAW... | Minor source | No |
| PDC CHRISTIANSEN 31, 41, 42-33 | Minor source | No |
| PDC COGBURN 21-28/KEISER 22-28 | Minor source | No |
| PDC COOK 33, 34-20 | Minor source | No |
| PDC CORNISH 11, 12, 21, 22-10 | Minor source | No |
| PDC CULBREATH 23-21 | Minor source | No |
| PDC CUYKENDALL 2-6 | Minor source | No |
| PDC DAD 1 | Minor source | No |
| PDC DALTON 13, 23-24 | Minor source | No |
| PDC DALTON 14, 24-24 | Minor source | No |
| PDC DANLEY 12-28/ DEWEY 22-28 | Minor source | No |
| PDC DE JONG 24-23 | Minor source | No |
| PDC DECHANT 1-31A | Minor source | No |
| PDC DIC AMATO 42-32 | Minor source | No |
| PDC DILLARD 31, 41-20 | Minor source | No |
| PDC DILLARD 32, 42-20 | Minor source | No |
| PDC DOROTHY 1 | Minor source | No |
| PDC DUNN 1(CACHE), 22-18 | Minor source | No |
| PDC DUNN-MILLER 1 | Minor source | No |
| PDC DYER 31, 32-34 | Minor source | No |
| PDC EDWARDS 33, 43-16 U/ L&H 1 | Minor source | No |
| PDC EDWARDS 34-16U, 16DU/ HARDMAN 5 | Minor source | No |
| PDC EHRLICH 13, 14-32 | Minor source | No |
| PDC EHRLICH 4, 22-7 | Minor source | No |
| PDC ELDER 13-21 | Minor source | No |
| PDC ELDER 14-21 | Minor source | No |
| PDC ELDER SUB 11-21 | Minor source | No |
| PDC ELKHORN 1 | Minor source | No |
| PDC EMILY 7-10 | Minor source | No |
| PDC ENERGY - CURTIS 23, 36-25 | Minor source | No |
| PDC ENERGY - WALSH 23 | Minor source | No |
| PDC ENERGY - WEIDEMAN 12-29 | Minor source | No |
| PDC ENERGY - WIEDEMAN 11, 12, 21, | Minor source | No |
| PDC ENERGY TWO E RANCH 1-4 | Minor source | No |
| PDC ENERGY TWO E RANCH 2-11 | Minor source | No |
| PDC ENERGY - BASS T4N-R66W-S12 L01 | Minor source | No |
| PDC ENERGY - EILEEN FED & FRITZLER FED | Minor source | No |
| PDC ENERGY - MERRIT 9 SEC | Synthetic minor source | No |
| PDC ENERGY - ADAMS 31, 41-10; 41-10H | Minor source | No |
| PDC ENERGY - AG 26-32 | Synthetic minor source | Yes |
| PDC ENERGY - AGUILAR FEDERAL 29-12H5 | Minor source | No |
| PDC ENERGY - AHNSTEDT 10, 15-4 | Minor source | No |
| PDC ENERGY - ALLES 22 SEC PAD 1 & 2 | Synthetic minor source | No |
| PDC ENERGY - ALM NORTH & SOUTH PAD | Minor source | No |
| PDC ENERGY - ALVA SHABLE 1-4 | Minor source | No |
| PDC ENERGY - AMBER, AMBER FED, CURTIS | Minor source | No |
| PDC ENERGY - ANDERSON 11, 12-2 | Minor source | No |
| PDC ENERGY - ANDERSON 13, 23-34; 34B | Minor source | No |
| PDC ENERGY - ANDERSON 32-13 | Minor source | No |
| PDC ENERGY - ANDOLSEK 1-2, 2-2 | Minor source | No |
| PDC ENERGY - ANDREW HOP 1 | Minor source | No |
| PDC ENERGY - ANDREWS 26-13,14, 23, 24,53 | Minor source | No |
| PDC ENERGY - ANGELA - URSULA | Minor source | No |
| PDC ENERGY - API 32, 42-15 | Minor source | No |
| PDC ENERGY - API T4N-R66W-S15 L02 | Minor source | No |
| PDC ENERGY - ASHTON LINHARTT5N-R66W-S33 | Minor source | No |
| PDC ENERGY - BAIER 25-11 | Minor source | No |
| PDC ENERGY - BAKER 31, 32-5 | Minor source | No |
| PDC ENERGY - BARR 11 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BASS T6N-R65W-S19 L01 | Minor source | No |
| PDC ENERGY - BATH-SCHMIER 32 SEC HZ | Synthetic minor source | No |
| PDC ENERGY - BECKER RANCH 5MRU PADS 3&4 | Synthetic minor source | No |
| PDC ENERGY - BEEBE 3-34 PAD | Synthetic minor source | No |
| PDC ENERGY - BERNHARDT 13-14 | Minor source | No |
| PDC ENERGY - BERNHARDT 6G-323,403; 6K-24 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.