Water quality in Chinook, Montana
Chinook is in Blaine County. 12 active public water systems serve the county; 8 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 Blaine County
5 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Perrys Water Service Chinook |
100 | 1 | 0.2 mi | |
| Harlem City of Harlem |
820 | 5 | 20.8 mi | |
| North Harlem Colony Harlem |
42 | 0 | 21.8 mi | |
| Hartland Colony Havre |
73 | 5 | 27.2 mi | |
| Turner Colony Turner |
50 | 7 | 41.8 mi |
Non-community systems in Blaine County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Zurich School District 17 Zurich |
26 | 0 | 0 | |
|
Hansen Family Campground & Storage LLC Havre |
42 | 1 | 0 | |
|
Albertsons Harlem NO 2032 Harlem |
25 | 0 | 0 | |
|
The Border Bar Turner |
52 | 0 | 0 | |
|
Turner School District NO 43 Turner |
97 | 2 | 0 | |
|
Turner Border Station Turner |
45 | 2 | 0 |
About this data
Water systems are matched to Blaine County, nearest to Chinook 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 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.