Water quality in Shelby, Montana
Shelby is in Toole County. 18 active public water systems serve the county; 13 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 Toole County
14 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Ncmrwa North Shelby Shelby |
300 | 1 | 1.2 mi | |
| Oilmont County Water District Shelby |
300 | 1 | 1.2 mi | |
| Ethridge County Water District Shelby |
70 | 2 | 1.2 mi | |
| Devon Water INC Shelby |
75 | 2 | 8.2 mi | |
| Kevin Town of Kevin |
290 | 0 | 18.6 mi | |
| Camrose Colony Ledger |
95 | 3 | 22.6 mi | |
| Ncmrwa Shelby to Ethridge Cut Bank |
70 | 0 | 24.4 mi | |
| Big Rose Colony Sunburst |
75 | 0 | 26.6 mi | |
| Sunburst Town of Sunburst |
459 | 1 | 27.3 mi | |
| Galata County Water District Galata |
200 | 1 | 29.2 mi | |
| Rimrock Colony Sunburst |
124 | 1 | 30.3 mi | |
| Sweetgrass Water Users Assn Sweetgrass |
100 | 3 | 35.4 mi | |
| Hillside Colony INC Sweetgrass |
100 | 0 | — | |
| Nine Mile CO Water and Sewer District |
90 | 1 | — |
Non-community systems in Toole County (3: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Albertsons Shelby NO 2014 Shelby |
50 | 0 | 0 | |
|
Lewis and Clark RV Park Shelby |
25 | 1 | 0 | |
|
Marias Valley Golf and Country Club Shelby |
105 | 2 | 0 |
About this data
Water systems are matched to Toole County, nearest to Shelby 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 or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
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 Montana 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.