EPA Air · inspections by county and year
Air-emissions inspections in Williams County, North Dakota, 2025
- 6Inspections
A compliance evaluation is the on-site or file review a state, local or federal air agency records against a permitted source. Each row below is one inspection recorded against a source in Williams County, North Dakota during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Williams County facility page.
Williams County, North Dakota, 2025
- Stack tests 14
Air-emissions inspections in Williams County, other years
Air-emissions inspections recorded in Williams County, North Dakota, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-07-21 | CRESTWOOD CRUDE LOGISTICS, LLC - COLT CRUDE OIL TERMINAL | FCE On-Site | State |
| 2025-07-17 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | PCE On-Site | U.S. EPA |
| 2025-07-16 | ONEOK ROCKIES MIDSTREAM, L.L.C. - STATELINE GAS PLANT - AQ | PCE On-Site | U.S. EPA |
| 2025-06-26 | BASIN ELECTRIC POWER COOPERATIVE - PIONEER GENERATION STATION - AQ | FCE On-Site | State |
| 2025-06-10 | HESS TIOGA GAS PLANT LLC - TIOGA GAS PLANT - AQ | FCE On-Site | State |
| 2025-06-10 | WHITING OIL AND GAS CORPORATION, LLC - RAY GAS PLANT - AQ | FCE On-Site | State |
Dates as filed by the agency that recorded the inspection. Figures from EPA’s ICIS-AIR download.