Water quality in Great Falls, Montana
Great Falls is in Cascade County. 97 active public water systems serve the county; 63 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Cascade County
46 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Missouri Meadows Community INC Great Falls |
85 | 1 | 1.5 mi | |
| Big Sky Mobile Home Park Great Falls |
40 | 0 | 1.7 mi | |
| Grandview Trailer Court Great Falls |
165 | 0 | 2.1 mi | |
| Great Falls City of Great Falls |
60,000 | 0 | 3.0 mi | |
| Countryside Village MHP Grt Fls Great Falls |
600 | 0 | 3.1 mi | |
| Bushard Water Company Great Falls |
425 | 3 | 3.1 mi | |
| Pleasant Park Community INC Great Falls |
125 | 3 | 3.1 mi | |
| Shade Tree Mobile Park Great Falls |
100 | 1 | 3.1 mi | |
| Rivershore Community LLC Great Falls |
90 | 0 | 3.1 mi | |
| Big Stack Estates Great Falls |
60 | 1 | 3.1 mi | |
| The Falls Mobile Home Community Great Falls |
60 | 0 | 3.1 mi | |
| Cobblestone Court Great Falls |
50 | 0 | 3.1 mi | |
| Park Garden Estates Great Falls |
50 | 1 | 3.1 mi | |
| Sunset Boulder MHP LLC Great Falls |
45 | 1 | 3.1 mi | |
| High Plains H2o LLC Great Falls |
25 | 0 | 3.1 mi | |
| Great Falls RV Park Great Falls |
274 | 0 | 3.2 mi | |
| Rivers Edge Mobile Home Park Grt Fls Great Falls |
75 | 1 | 3.5 mi | |
| Highwood Mobile Home Park Great Falls |
400 | 1 | 4.2 mi | |
| Big Bend Ranch Subdivision Great Falls |
100 | 4 | 4.5 mi | |
| Spring Tree Ridge Great Falls |
80 | 4 | 4.5 mi | |
| Black Eagle Cascade County Water Sewer Black Eagle |
1,233 | 0 | 4.5 mi | |
| Gore Hill County Water Dist Great Falls |
500 | 4 | 4.6 mi | |
| Prairie Water Company Great Falls |
1,000 | 3 | 5.3 mi | |
| Malmstrom Air Force Base Great Falls |
8,850 | 3 | 5.3 mi | |
| Big Stone Colony INC Sand Coulee |
130 | 2 | 6.4 mi |
Non-community systems in Cascade County (50: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Cascade County, nearest to Great Falls 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. Retrieved from ECHO on Oct 11, 2026.