Williams, ND
Transparent derived index from EPA TRI / SDWIS / Superfund extracts: not an official EPA rating. Fixed caps: facilities ≤25 pts (50+ = max), log10 releases ≤25 pts, Superfund ≤25 pts (5/site), health-violation systems ≤15 pts (3/system), high-chemical facilities ≤10 pts. Bands: High ≥60, Moderate ≥30. See methodology.
Environmental data for Williams in North Dakota · Population: 39,368
TRI sites such as Stateline Complex; Nesson Gas Plant; Championx-Williston; SDWIS systems such as TIOGA CITY OF; R & T WATER SYSTEM; RAY CITY OF anchor Williams, ND's EPA extract. Derived burden score 31/100 (Moderate Risk) uses fixed national caps on density, log release volume, Superfund count, and health-flagged systems - not an official EPA rating.
Stateline Complex; Nesson Gas Plant; Championx-Williston are among the largest Form R filers reporting in Williams; no SDWIS system here carries an active health-based flag. No AQS county monitors report here.
Burden score 31/100 (Moderate Risk) is the only weighted composite on this page. The tables below list every TRI facility, SDWIS system, and Superfund site EPA has on record for Williams -- not just the names called out above -- reproducing the disclosure history as filed, not a current-safety verdict. Extract current as of 2026-08-25.
Release-over-release change
What changed for Williams, ND: EPA TRI 2023 reporting year
Same facilities, both years
+3.4%
8 facilities that filed in 2022 and 2023
Whole inventory
+32.5%
29.0 thousand lb → 38.4 thousand lb, every facility that filed
Between the two reporting years, 1 facility filed for the first time and 1 stopped filing. Facilities entering or leaving the inventory are excluded from the same-facility comparison above.
- Williams, ND's total reported releases rose from 29.0 thousand lb in 2022 to 30.0 thousand lb in 2023, based on EPA TRI filings.
- Williams, ND's air releases rose from 13.5 thousand lb in 2022 to 14.6 thousand lb in 2023, based on EPA TRI filings.
- Williams, ND's chemicals reported fell from 16 in 2022 to 15 in 2023, based on EPA TRI filings.
- Williams, ND's off-site transfers fell from 15.5 thousand lb in 2022 to 15.5 thousand lb in 2023, based on EPA TRI filings.
Water Systems (6)
| System | System pop (SDWIS) | Violations |
|---|---|---|
| TIOGA CITY OF | 2,202 | 0 |
| R & T WATER SYSTEM | 1,003 | 0 |
| RAY CITY OF | 950 | 0 |
| TRENTON WATER USERS ASSOC | 840 | 0 |
| INSPIRE COMMUNITIES-SPRINGBROOK | 300 | 0 |
| GRENORA CITY OF | 244 | 0 |
TRI Facilities (12)
| # | Facility | Total Releases |
|---|---|---|
| 1 | Stateline Complex | 24.9K lbs |
| 2 | Nesson Gas Plant | 17.3K lbs |
| 3 | Championx-Williston | 12.0K lbs |
| 4 | Halliburton Williston Field Camp (halwest) | 9.6K lbs |
| 5 | Hess Tioga Gas Plant LLC | 8.4K lbs |
| 6 | Crestwood Crude Logistics LP | 8.4K lbs |
| 7 | Whiting Oil & Gas Corp LLC - Ray Gas Plant | 5.4K lbs |
| 8 | Sabin Metal West Corp | 321 lbs |
| 9 | Thomas Petroleum LLC - Williston North Bulk Plant | 0 lbs |
| 10 | Halliburton Williston Field Camp | 0 lbs |
| 11 | Knife River North Central Williston | 0 lbs |
| 12 | Halliburton Williston Baroid | 0 lbs |
Cities in Williams (6)
Frequently Asked Questions
What is the environmental risk level in Williams, North Dakota? ▼
Are there Superfund sites in Williams? ▼
How many toxic release facilities are in Williams? ▼
What is the air quality in Williams? ▼
Is the drinking water safe in Williams? ▼
What environmental agencies cover Williams? ▼
What does this county environmental profile show?
This county environmental profile rolls up EPA Toxics Release Inventory facility reports, Safe Drinking Water Information System public-water-system filings, and Superfund National Priorities List sites for the county boundary defined by the U.S. Census Bureau. Facility counts reflect facilities with a reporting address inside the county, not where downstream environmental effects may be observed. Population figures are from the most recent Census ACS 5-year estimate. The county detail page is updated whenever the upstream EPA programs publish revised data; see the methodology page for the documented ingest cadence and the editorial choices governing how aggregations are computed.
Read our methodology - how this data is sourced, computed, and verified.