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 GUTTERSEN 23, 24-6 | Minor source | No |
| PDC GUTTERSEN 31, 32-6 | Minor source | No |
| PDC GUTTERSEN 33, 34, 43-21/ TWO E 1-21C | Minor source | No |
| PDC GUTTERSEN 33, 43-31 | Minor source | No |
| PDC GUTTERSEN 43, 44-11 | Minor source | No |
| PDC H&S 1 (CACHE) | Minor source | No |
| PDC H&S 1 (MINERAL) 1 | Minor source | No |
| PDC HANKINS 33, 43-17U & 17DU | Minor source | No |
| PDC HANKINS 34, 44-17U | Minor source | No |
| PDC HANSEN 1-1 | Minor source | No |
| PDC HAZEL 1-21 | Minor source | No |
| PDC HENRY 5-1, 2 | Minor source | No |
| PDC HETTINGER 1; 33, 44-18 | Minor source | No |
| PDC HICKS31 32 41 42-29 OLSON29-12 21 22 | Minor source | No |
| PDC HILLMAN 14-14 | Minor source | No |
| PDC HINKLE 23, 24-5 | Minor source | No |
| PDC HONDO 1 | Minor source | No |
| PDC HOSHIKO 1, 31-34 | Minor source | No |
| PDC HOSHIKO 2,3 | Minor source | No |
| PDC HOSHIKO 31, 32, 41, 42-17 | Minor source | No |
| PDC HOSHIKO 4 | Minor source | No |
| PDC HOSHIKO/SOLIS /MILLER 2 | Minor source | No |
| PDC HOWARD 24-18, MASON 1 | Minor source | No |
| PDC HOWARD LAKE 41, 42-9 | Minor source | No |
| PDC HUNGENBERG 21, 22-16 | Minor source | No |
| PDC J & L FARMS 14, 24-29 | Minor source | No |
| PDC J & L FARMS 31, 32-30 | Minor source | No |
| PDC J.T. 1,2 | Minor source | No |
| PDC JACOBUCCI 24-32 | Minor source | No |
| PDC JASON 1, 2, 34-31 | Minor source | No |
| PDC JENNIFER 1/ JOHNNY 1 | Minor source | No |
| PDC JOHNSON 13, 23-4 | Minor source | No |
| PDC KINZER 13-28 & 28B | Minor source | No |
| PDC KINZER 23-3A, B, C, D | Minor source | No |
| PDC KINZER 28B | Minor source | No |
| PDC KOERNER 31, 32, 42- 24/ GLAZIER 2-24 | Minor source | No |
| PDC L F RANCH 1-24 | Minor source | No |
| PDC L F RANCH 2-12 | Minor source | No |
| PDC L F RANCH 2-2 | Minor source | No |
| PDC L F RANCH 2-25 | Minor source | No |
| PDC LATHAM 3-2, 24 | Minor source | No |
| PDC LATHAM 7-3, 7-4 | Minor source | No |
| PDC LEFFLER 1, 2-27; 3, 5 | Minor source | No |
| PDC LILLIE 1-23 | Minor source | No |
| PDC LINHART 3, 4-33 | Minor source | No |
| PDC LITTLE THOMPSON 1 | Minor source | No |
| PDC LORENZ 44-28 | Minor source | No |
| PDC LORENZ FARMS 22-13/ RIVER 1 | Minor source | No |
| PDC LOUSTALET 21-15/ DROEGEMULLER 11-15 | Minor source | No |
| PDC MAPELLI 1 | Minor source | No |
| PDC MARCY 34-11 | Minor source | No |
| PDC MCCARTY 28-3, 28-4 | Minor source | No |
| PDC MCKEE 32, 42-21 | Minor source | No |
| PDC MCKENNEY 5, 6-3 | Minor source | No |
| PDC MELLON 28-2 | Minor source | No |
| PDC MELLON 28-3 | Minor source | No |
| PDC MELLON 28-4 & 28N | Minor source | No |
| PDC MIENING 41-30; 5 | Minor source | No |
| PDC MILLAGE 11-10 | Minor source | No |
| PDC MILLAGE 23-3 | Minor source | No |
| PDC MILLER 21-31 | Minor source | No |
| PDC MININGER 1, 33-34 | Minor source | No |
| PDC MINN.PFEIF 41-5,NOFF. 32-5,NOFF./... | Minor source | No |
| PDC MONFORT 13-30; 2, 3, 4, 5 | Minor source | No |
| PDC MOODY 12, 21, 22-6 | Minor source | No |
| PDC MORGANTE 44-29U | Minor source | No |
| PDC MOSER 12-33 | Minor source | No |
| PDC MOSER 23-33 | Minor source | No |
| PDC MOSER 25-32, 42 | Minor source | No |
| PDC MOSS 14-16H | Minor source | No |
| PDC NACAMI MM 2-10 | Minor source | No |
| PDC NATIONAL HOG FARM 21-9 | Minor source | No |
| PDC NATIONAL HOG FARM 34, 43, 44-21 | Minor source | No |
| PDC NELSON 11, 21-33 | Minor source | No |
| PDC NELSON 24-1; KENT 24-2 | Minor source | No |
| PDC NORRIS 3, 16-C | Minor source | No |
| PDC O'GRADY 2 | Minor source | No |
| PDC OLANDER U 14-11, 14 | Minor source | No |
| PDC P A 13-30 | Minor source | No |
| PDC PARISH 32-1 | Minor source | No |
| PDC PAT MIKE 6LL; 2-9; WFH 5 | Minor source | No |
| PDC PATRICK ANDERSON 1 | Minor source | No |
| PDC PAULINE 1, 2; PAULINE PJ 5 | Minor source | No |
| PDC PAXTON 11, 12-33 | Minor source | No |
| PDC PEIKER 31, 32, 41, 42-6 | Minor source | No |
| PDC PESCHEL 44-20 | Minor source | No |
| PDC PETERSON 42-12 | Minor source | No |
| PDC PHILLIPS 1, WARREN 10-1 | Minor source | No |
| PDC PHINNEY 33, 34, 43, 44-10 | Minor source | No |
| PDC PLATTE VALLEY 1, 2 | Minor source | No |
| PDC PLUMB 1, 2 | Minor source | No |
| PDC PLUMB 2, 3, 4, 7C | Minor source | No |
| PDC PUTNAM 1; 24-29 | Minor source | No |
| PDC RICHTER 13, 23, 24-27 | Minor source | No |
| PDC RICHTER 13, 23, 24-27 | Minor source | No |
| PDC RICHTER 33, 34, 43, 44-27 | Minor source | No |
| PDC RIEDER 32-1 | Minor source | No |
| PDC RITEAWAY 32E-323, 32J-103, 403; 32M- | Minor source | No |
| PDC ROTH 5, 6-30 | Minor source | No |
| PDC ROTHARMEL 11, 12-33 | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.