Williams County contains 102 EPA-regulated facilities, 5 of which are currently flagged for significant noncompliance. The county also hosts 0 Superfund sites and 10 TRI chemical reporters. EPA has assessed $25.3M in lifetime penalties and TRI reporters disclosed roughly 30.3k lb of on-site releases. That facility count is well above the North Dakota state average of 29 per county.
| Facility | City | On-site (lb) | Status |
|---|---|---|---|
| Hess Tioga Gas Plant Llc | Tioga | 12.7k | Compliant |
| Stateline Complex | Williston | 5.6k | Compliant |
| Whiting Oil And Gas Corporation, Llc - Ray Gas Plant | Ray | 3.4k | Compliant |
| Championx Llc - Williston | Williston | 3.1k | Compliant |
| Halliburton Energy Services, Inc. - Halwest Facili | Williston | 1.9k | Compliant |
| Norse Gas Plant | Mcgregor | 1.5k | Compliant |
| Nesson Gas Plant | Tioga | 1.2k | Compliant |
| Crestwood Crude Logistics Lp | Epping | 862 | Compliant |
| Sabin Metal West Corp | Williston | 208 | Compliant |
| Facility | City | Penalties | Last Inspected |
|---|---|---|---|
| Williston Industrial Supply Corp. | Williston | $0 | 2024-06-26 |
| Nexteir Completion Solutions - Williston North Facility | Williston | $0 | 2017-10-11 |
| Wellbore Integrity Solutions (Wis) | Williston | $0 | 2025-04-15 |
| Clearshift, Llc | Tioga | $0 | 2023-12-14 |
| Trenton Water Users Assoc | Trenton | $0 | 2023-06-08 |