Water quality for ZIP code 59435
Toole County, Montana, one of 7 ZIP codes in the county. 18 active public water systems serve the county; 13 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Toole County
14 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Sunburst Town of Sunburst |
459 | 1 | |
| Ncmrwa North Shelby Shelby |
300 | 1 | |
| Oilmont County Water District Shelby |
300 | 1 | |
| Kevin Town of Kevin |
290 | 0 | |
| Galata County Water District Galata |
200 | 1 | |
| Rimrock Colony Sunburst |
124 | 1 | |
| Hillside Colony INC Sweetgrass |
100 | 0 | |
| Sweetgrass Water Users Assn Sweetgrass |
100 | 3 | |
| Camrose Colony Ledger |
95 | 3 | |
| Nine Mile CO Water and Sewer District |
90 | 1 | |
| Big Rose Colony Sunburst |
75 | 0 | |
| Devon Water INC Shelby |
75 | 2 | |
| Ethridge County Water District Shelby |
70 | 2 | |
| Ncmrwa Shelby to Ethridge Cut Bank |
70 | 0 |
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 |
|---|---|---|---|---|
|
Marias Valley Golf and Country Club Shelby |
105 | 2 | 0 | |
|
Albertsons Shelby NO 2014 Shelby |
50 | 0 | 0 | |
|
Lewis and Clark RV Park Shelby |
25 | 1 | 0 |
About this data
Water systems are matched to Toole County, the county this ZIP code lies in, largest 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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. Retrieved from ECHO on Oct 11, 2026.