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 - BROWN 2E-232, 2F-202, 412, 432, 2G | Minor source | No |
| PDC - BROWN MCCARTY 30-43 | Minor source | No |
| PDC - BUTTERBALL B4, 13, 14, 23, 24-1... | Minor source | No |
| PDC - BYRON 13-21 | Minor source | No |
| PDC - CAPEHART 41-29 | Minor source | No |
| PDC - CARLSON 1, 43-7 | Minor source | No |
| PDC - CARLSON 18-2, 3 | Minor source | No |
| PDC - CARLSON 18-2, 3 | Minor source | No |
| PDC - CARLSON 2; 44-14 | Minor source | No |
| PDC - CARLSON 33, 34-7 | Minor source | No |
| PDC - CARLSON 41, 42-18 | Minor source | No |
| PDC - CARLSON 5; OTTENHOFF 29-1, 41-2... | Minor source | No |
| PDC - CECIL 13-1 | Minor source | No |
| PDC - CECIL 31-26H | Minor source | No |
| PDC - CECIL'S KERSEY FARM 17 SEC HZ | Synthetic minor source | No |
| PDC - CERVI 13-31H | Minor source | No |
| PDC - CERVI 14, 24-24 | Minor source | No |
| PDC - CERVI 31-4 | Minor source | No |
| PDC - CERVI 31, 41-26 | Minor source | No |
| PDC - CHALLENGER 8 SEC HZ | Minor source | No |
| PDC - CHRISTIANSEN 34-7; TRINITY 33,... | Minor source | No |
| PDC - CHURCHILL 28-1, 2; 28A-2... | Minor source | No |
| PDC - CLARK 11, 12-27 | Minor source | No |
| PDC - CLARK 14 SEC HZ; J CLARK 14 SEC HZ | Synthetic minor source | No |
| PDC - CLARK 21, 22-27 | Minor source | No |
| PDC - CLARK 32-20 | Minor source | No |
| PDC - COCKROFT 33-11 | Minor source | No |
| PDC - COCKROFT 34, 43, 44-11 | Minor source | No |
| PDC - COCKROFT 41-19, 19V, 19C/ CHRISTEN | Synthetic minor source | No |
| PDC - COOK 43, 44-20 & 20D | Minor source | No |
| PDC - COORS ENERGY 13, 23-25D, 25HD | Minor source | No |
| PDC - COORS ENERGY 24, 34-25 | Minor source | No |
| PDC - COORS ENERGY 33, 43-25D; 25TD, 25X | Minor source | No |
| PDC - CORNISH 21, 22-3 | Minor source | No |
| PDC - COZZENS 12, 13, 22, 23 | Minor source | No |
| PDC - COZZENS 31, 24, 33, 34, 43, 44-... | Minor source | No |
| PDC - COZZENS 31, 32, 41, 42-9, 9C, 9SD, | Minor source | No |
| PDC - COZZENS 31, 42-8D, 41-8, 8CD, 8VD, | Minor source | No |
| PDC - DANLEY 13, 14-28 | Minor source | No |
| PDC - DANLEY 33, 43-20; DANLEY GILBER... | Minor source | No |
| PDC - DECHANT 7-14 | Minor source | No |
| PDC - DERREK 1 | Minor source | No |
| PDC - DERREK 1/ MATTIE 1 | Minor source | No |
| PDC - DEWEY 21-18, DANLEY 1 | Minor source | No |
| PDC - DILLARD 20M-203, 20R-303, 443 | Minor source | No |
| PDC - DILLARD 20T-221, 401; 20Y-401 | Minor source | No |
| PDC - DUNN-MILLER 17-B | Minor source | No |
| PDC - DUNN-MILLER 23-17 | Minor source | No |
| PDC - DYER 41-7 | Minor source | No |
| PDC - ECKHARDT 34-1; 43, 44-34 | Minor source | No |
| PDC - EDITH 1-26; IRVING 1-26;5; PAYN... | Minor source | No |
| PDC - EDWARDS 16B U/ HARDMAN 1, 2, 3, 4 | Minor source | No |
| PDC - EDWARDS 34, 44-9 | Minor source | No |
| PDC - EDWARDS 43-9 | Minor source | No |
| PDC - EHRLICH 1 | Minor source | No |
| PDC - EHRLICH 2 | Minor source | No |
| PDC - EHRLICH 32-7 | Minor source | No |
| PDC - EHRLICH P M 2 | Minor source | No |
| PDC - EMILY 1; MOWERY 19-1; IVAN KLEIN 1 | Minor source | No |
| PDC - ERICKSON 14, 24-4 | Minor source | No |
| PDC - EXCO-WATKINS 12-34, 44 | Minor source | No |
| PDC - FABRIZIUS 31,41-1/BAY FAMILY TRUST | Minor source | No |
| PDC - FICKEL 31-21 | Minor source | No |
| PDC - FIELDS 11-34/ FIELDS NELSON 34-1/. | Minor source | No |
| PDC - FIVE RIVERS LOWER K07, K08, K09 | Synthetic minor source | No |
| PDC - FLACK 21-3 | Minor source | No |
| PDC - FLB 10-3 | Minor source | No |
| PDC - FORD 13-1; 23-13 | Minor source | No |
| PDC - FRANCEN 14-30 | Minor source | No |
| PDC - FRANCIS 22-8 | Minor source | No |
| PDC - FRANK 32-24 | Minor source | No |
| PDC - FRANK 5, 6LL | Minor source | No |
| PDC - FRENCH 1, 5; 41-4; SITZMAN 1; 32-4 | Minor source | No |
| PDC - GADDIS 12, 22-36 | Minor source | No |
| PDC - GATEWOOD 11-1 | Minor source | No |
| PDC - GERRY 1, 22-25 | Minor source | No |
| PDC - GIRVAN 22-10 | Minor source | No |
| PDC - GOLD 9VDU & GREAT WESTERN SUGAR 6 | Minor source | No |
| PDC - GREEN 13-24H | Synthetic minor source | No |
| PDC - GURLEY 31-23, 24 | Minor source | No |
| PDC - GUTTERSEN 11, 12, 21, 22-28 & 28A | Minor source | No |
| PDC - GUTTERSEN 11, 12, 22-30 & 30A/ LF. | Minor source | No |
| PDC - GUTTERSEN 23-41 | Minor source | No |
| PDC - GUTTERSEN 23, 24-33/ LF 1-33 | Minor source | No |
| PDC - GUTTERSEN 31, 32, 41, 42-13, 13C | Minor source | No |
| PDC - GUTTERSEN 34, 43, 44-13; 13D;13... | Minor source | No |
| PDC - GUTTERSEN 43, 44-24 & 24S | Minor source | No |
| PDC - HAHN 13, 14-27 | Minor source | No |
| PDC - HAHN 23, 24-27 | Minor source | No |
| PDC - HALL 28-1, 5 | Minor source | No |
| PDC - HAMILTON 22, 31, 32-25 | Minor source | No |
| PDC - HANKINS 22-41, 42, 44 & 22D | Minor source | No |
| PDC - HANKINS 43, 44-20U | Minor source | No |
| PDC - HARPER 43-27 | Minor source | No |
| PDC - HARVESTER 31, 32, 41, 42-15 | Minor source | No |
| PDC - HARVESTERS RESOURCES 15M-303, 423; | Minor source | No |
| PDC - HARVESTERS RESOURCES 15R-323, 403; | Minor source | No |
| PDC - HEINRICH 41-9 | Minor source | No |
| PDC - HEINRICY 11, 12, 21, 22-7U, 7AU.. | Minor source | No |
| PDC - HEINZE 44-29 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.