Montana
Valley County drinking water quality
13 active public water systems serve 6,060 people in Valley County. 5 are compliant, 8 had at least one EPA violation in the past three years, 0 are designated serious violators, and 1 carries a health flag.
Needs attention
Community water systems
8 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Glasgow City of Glasgow |
3,253 | 1 | 0 | |
|
Fort Peck Rural County Water District Fort Peck |
663 | 0 | 0 | |
|
North Valley County Water and Sewer Dist St Marie |
450 | 5 | 2 | |
|
Nashua Town of Nashua |
300 | 3 | 1 | |
|
Hinsdale Water Department Hinsdale |
250 | 2 | 1 | |
|
Fort Peck Town of Fort Peck |
240 | 3 | 0 | |
|
Cherry Creek Wua Glasgow Glasgow |
180 | 5 | 0 | |
|
Opheim Town of Opheim |
111 | 0 | 0 |
Non-community systems (5: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Vandalia Glasgow West Rest Area Glasgow |
250 | 0 | 0 | |
|
Big Valley Water INC Glasgow |
200 | 2 | 1 | |
|
Montana Aviation Research CO Glasgow |
70 | 0 | 0 | |
|
The Park Glasgow |
68 | 3 | 0 | |
|
Primo Refill Albertsons Glasgow Glasgow |
25 | 0 | 0 |
Inactive systems (28, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
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.