Water quality in Tioga, North Dakota
Tioga is in Williams County. 22 active public water systems serve the county; 11 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Williams County
12 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Tioga City of Tioga |
2,202 | 0 | 7.4 mi | |
| Ray City of Ray |
950 | 0 | 17.8 mi | |
| Wildrose City of Wildrose |
110 | 0 | 23.2 mi | |
| Western Area Water Supply Authority |
0 | 0 | 30.7 mi | |
| Inspire Communities-Springbrook |
300 | 4 | 38.5 mi | |
| Northwest Rural Water District |
5,102 | 1 | 39.3 mi | |
| Williston City of Williston |
26,426 | 0 | 43.8 mi | |
| Trenton Water Users Assoc Trenton |
840 | 2 | 54.2 mi | |
| Grenora City of Grenora |
244 | 0 | 54.5 mi | |
| Prairie View HOA |
226 | 5 | — | |
| Fendee Estates |
30 | 2 | — | |
| The Bluffs HOA |
30 | 2 | — |
Non-community systems in Williams County (9: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Little Beaver Bay Rec Area |
40 | 1 | 1 | |
|
B & B RV |
25 | 1 | 0 | |
|
Mondak Portables (water Hauler) |
30 | 0 | 0 | |
|
Big Country RV Park |
48 | 0 | 0 | |
|
Stallion Oilfield Services-Williston |
90 | 0 | 0 | |
|
Missouri-Yellowstone Interpretive Center |
100 | 1 | 0 | |
|
Glacier Potable Water |
500 | 0 | 0 | |
|
13 Mile Center |
50 | 3 | 2 | |
|
Little Egypt Campground |
20 | 1 | 0 |
About this data
Water systems are matched to Williams County, nearest to Tioga first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The North Dakota records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.