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 SAKATA 11-36 | Minor source | No |
| PDC SAKATA 13-36 | Minor source | No |
| PDC SANDY 1 | Minor source | No |
| PDC SATER 11,12,21,22-19U, 12-19AU, FU, | Minor source | No |
| PDC SAUER 33-31D, 43-31 | Minor source | No |
| PDC SCHAUMBERG 1, 12-17 | Minor source | No |
| PDC SCHNEIDER 1, 22-21 | Minor source | No |
| PDC SEEWALD 1-1 | Minor source | No |
| PDC SHULTZ FARM 30-33 | Minor source | No |
| PDC SHUPE 13-2A, 13-2B/ SHEEP DRAW 13-22 | Minor source | No |
| PDC SILVA 1, 23-6 | Minor source | No |
| PDC SITZMAN 1 U | Minor source | No |
| PDC SITZMAN 27-31 | Minor source | No |
| PDC SKURICH / SLW RANCH 12 13, 14-7, 7-B | Minor source | No |
| PDC SKURICH 11, 21-7 | Minor source | No |
| PDC SKURICH 43-7 | Minor source | No |
| PDC SKURICH-ROTHE STATE 11, 12, 21-6... | Minor source | No |
| PDC SKURICH-ROTHE STATE 14, 24-6 | Minor source | No |
| PDC SLW RANCH 22, 31, 32-7 | Minor source | No |
| PDC SLW RANCH 24, 34, 44-7; SKURICH/S... | Minor source | No |
| PDC SMITH REEVES 42-5 | Minor source | No |
| PDC SOLIS 43-17 | Minor source | No |
| PDC SPAUR 10-1 | Minor source | No |
| PDC SPAUR 10-2 | Minor source | No |
| PDC SPAUR 10-3 | Minor source | No |
| PDC STATE 11, 12, 21, 22-4 | Minor source | No |
| PDC STATE 5519 31, 41, 42-8 | Minor source | No |
| PDC STATE LEASE 6525 32, 42-32 | Minor source | No |
| PDC STATE LEASE 6525 41-32 | Minor source | No |
| PDC STATE LEASE 8461 12-16 | Minor source | No |
| PDC STATE LEASE 8461 21-16 | Minor source | No |
| PDC STATE PETERSON 31, 32, 41, 42-16 | Minor source | No |
| PDC STATE PETERSON 31, 32, 41, 42-16 | Minor source | No |
| PDC STEINMETZ 1; 21-17 | Minor source | No |
| PDC SWANSON FARMS 43 & 44 | Minor source | No |
| PDC TODD 1; 13-25 | Minor source | No |
| PDC TRACY 31, 32, 41, 42-23 | Minor source | No |
| PDC TRI-POINTE 12-3B | Minor source | No |
| PDC TWO E RANCH 1-10 | Minor source | No |
| PDC TWO E RANCH 4-10 | Minor source | No |
| PDC UCLI 6-3 | Minor source | No |
| PDC VIEFHAUS 43-29U | Minor source | No |
| PDC VON FELDT 1-25B | Minor source | No |
| PDC WACKER 2, 22-10, 10-D | Minor source | No |
| PDC WACKER 31, 32-10 | Minor source | No |
| PDC WALKER 13, 14, 23, 24-10 | Minor source | No |
| PDC WEBSTER 21, 22-11 | Minor source | No |
| PDC WEINGARDT 24, 33-22 | Minor source | No |
| PDC WELLS RANCH 11, 12, 21, 22-2 | Minor source | No |
| PDC WELLS RANCH 11, 12, 21, 22-36 & 3... | Minor source | No |
| PDC WELLS RANCH 13, 14-20 | Minor source | No |
| PDC WELLS RANCH 13, 14, 23, 24-27 | Minor source | No |
| PDC WELLS RANCH 13, 14, 24-11 | Minor source | No |
| PDC WELLS RANCH 14-2 | Minor source | No |
| PDC WELLS RANCH 14-34 | Minor source | No |
| PDC WELLS RANCH 14, 23, 24-1 | Minor source | No |
| PDC WELLS RANCH 23, 24-20 | Minor source | No |
| PDC WELLS RANCH 31, 32, 41, 42-10 & 10C | Minor source | No |
| PDC WELLS RANCH 32, 42-5 | Minor source | No |
| PDC WELLS RANCH 41-3 | Minor source | No |
| PDC WELLS RANCH 43, 44-30 | Minor source | No |
| PDC WELLS TRUST 13, 14, 24-21 | Minor source | No |
| PDC WIEDEMAN 24-22, JT 23-22 | Minor source | No |
| PDC WIEDEMAN 24, 34, 44-21U; 21B; 21-2 | Minor source | No |
| PDC WIEDEMAN 29-2, 29; 2 | Synthetic minor source | No |
| PDC WILKENS 34-6 | Minor source | No |
| PDC WINTERS 12-34 | Minor source | No |
| PDC WOLFRUM 32, 42-10 | Minor source | No |
| PDC ZEILER 13, 14, 23, 24-7DU, 7HDU,... | Minor source | No |
| PDC ZIMMERMAN 14, 23-17 | Minor source | No |
| PDC- ALBRIGHTON / HEIDENREICH 10 SEC PAD | Synthetic minor source | No |
| PDC- COORS FEE 2, 12-6; COORS V6-4, 5, 6 | Minor source | No |
| PDC- HENDRICKS 33-1,2,3,4,5; BAILEY 33-1 | Synthetic minor source | No |
| PDC-KLEIN 19 SEC PAD1;JOSEPHINE19 SEC HZ | Synthetic minor source | No |
| PDC-SATER 19E-203,223,323;19J-443 (PAD1) | Minor source | No |
| PDC-SNOWMASS 5 SEC HZ;NOFFSINGER 21,31-5 | Synthetic minor source | No |
| PDC-WASTE MANAGEMENT 2I-401; 2L-201, 441 | Minor source | No |
| PENNYLANE PET CREMATION SERVICES | Minor source | No |
| PETDINE LLC - WINDSOR FACILITY | Minor source | No |
| PETERSON ENERGY - MAPELLI BATTERY | Minor source | No |
| PETERSON ENERGY OPERATING - MFM FARMS | Minor source | No |
| PETERSON ENERGY OPERATING - NLB BATTERY | Minor source | No |
| PETERSON ENERGY OPERATING, INC | Minor source | No |
| PETRO DEV CORP- WELLS RANCH 23-10, 24-10 | Minor source | No |
| PETRO DEV CORP- WELLS RANCH 43-36, 44-36 | Minor source | No |
| PETRO OPERATING - FLASCHENRIEM PAD | Synthetic minor source | No |
| PETRO OPERATING - HOMESTEAD 01N-66W-34 | Synthetic minor source | No |
| PETRO OPERATING - LG EVERIST PAD | Minor source | No |
| PETRO-CANADA - 036406-NENE-BATT | Minor source | No |
| PETRO-CANADA - 036522-NWSW-BATT | Minor source | No |
| PETRO-CANADA - 046511-NWSW-BATT | Minor source | No |
| PETRO-CANADA - 046618-NENE-BATT | Minor source | No |
| PETRO-CANADA - 056415-NWSW-BATT | Minor source | No |
| PETRO-CANADA - 056504-SWSE-BATT | Minor source | No |
| PETRO-CANADA - 056511-NESW-BATT | Minor source | No |
| PETRO-CANADA - 056512-SESW-BATT | Minor source | No |
| PETRO-CANADA - 056513-SENW-BATT | Minor source | No |
| PETRO-CANADA - 056536-SESE-BATT | Minor source | No |
| PETRO-CANADA - 056607-SENE-BATT | Minor source | No |
| PETRO-CANADA - 056724-NENW-BATT | Minor source | No |
County as filed on the facility record. Figures from EPA’s ICIS-AIR download.