All water systems in Montana
1,183 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ridge Run Flathead County |
3,500 | 0 | 0 | |
|
Quartz Flat Rest Stop East Superior · Mineral County |
3,301 | 1 | 0 | |
|
Quartz Flat Rest Stop West Superior · Mineral County |
3,301 | 1 | 0 | |
|
Dena Mora Saltese East Rest Saltese · Mineral County |
3,000 | 2 | 0 | |
|
Montana Expo Park Cascade County Great Falls · Cascade County |
2,510 | 1 | 0 | |
|
Greycliff Rest Area Eastbound Greycliff · Sweet Grass County |
2,500 | 2 | 0 | |
|
Gallatin Speedway Bozeman · Gallatin County |
2,100 | 1 | 0 | |
|
Red Lodge Mtn Main Lodge Red Lodge · Carbon County |
2,006 | 1 | 0 | |
|
Clearwater Junction Rest Area Missoula · Missoula County |
2,002 | 1 | 0 | |
|
Bearmouth Rest Stop Eastbound Drummond · Granite County |
2,000 | 1 | 0 | |
|
Bearmouth Rest Stop Westbound Drummond · Granite County |
2,000 | 1 | 0 | |
|
Dena Mora Saltese West Rest Saltese · Mineral County |
2,000 | 3 | 0 | |
|
Blue Basket Market Bozeman Bozeman · Gallatin County |
1,508 | 2 | 1 | |
|
Bridger Bowl Base Bozeman · Gallatin County |
1,507 | 0 | 0 | |
|
Cenex Zip Trip Num 50 Park City · Stillwater County |
1,500 | 3 | 1 | |
|
Deer Park Chalet Bozeman · Gallatin County |
1,500 | 0 | 0 | |
|
Town Pump Missoula 3 Missoula · Missoula County |
1,221 | 0 | 0 | |
|
Town Pump Woodside 1 Corvallis, Victor · Ravalli County |
1,198 | 0 | 0 | |
|
TA Missoula Missoula · Missoula County |
1,120 | 0 | 0 | |
|
Town Pump Florence 1 Florence · Ravalli County |
1,092 | 0 | 0 | |
|
Giant Springs State Park Great Falls · Cascade County |
1,011 | 0 | 0 | |
|
Big Sky Conoco Travel Shoppe Big Sky · Gallatin County |
1,000 | 2 | 0 | |
|
Greycliff Rest Area Westbound Greycliff · Sweet Grass County |
1,000 | 1 | 0 | |
|
Logan Pass Visitors Center St Mary · Glacier County |
1,000 | 0 | 0 | |
|
Daves Express Lube Helena · Lewis and Clark County |
966 | 0 | 0 | |
|
Deanos Travel Plaza Missoula · Missoula County |
959 | 2 | 0 | |
|
Mountain View Coop Lincoln Lincoln · Lewis and Clark County |
950 | 0 | 0 | |
|
Town Pump Dillon 2 Dillon · Beaverhead County |
924 | 0 | 0 | |
|
Bison Range County |
915 | 0 | 0 | |
|
Town Pump Columbia Falls 2 Columbia Falls · Flathead County |
910 | 0 | 0 | |
|
ST Mary Lodge and Resort St Mary · Glacier County |
908 | 0 | 0 | |
|
Glacier Bible Camp Hungry Horse · Flathead County |
903 | 0 | 0 | |
|
Hardin Eastbound Rest Area Hardin · Big Horn County |
877 | 1 | 0 | |
|
Oles Country Store Stevensville · Ravalli County |
820 | 2 | 0 | |
|
Thriftway Super Stop #8 Bozeman Bozeman · Gallatin County |
817 | 1 | 0 | |
|
Dearborn N Craig Rest Stop Craig · Lewis and Clark County |
808 | 1 | 0 | |
|
Frenchies Super Stop Missoula · Missoula County |
808 | 0 | 0 | |
|
Bears Country Store Libby · Lincoln County |
805 | 2 | 0 | |
|
Columbus Rest Area Eastbound Columbus · Stillwater County |
800 | 0 | 0 | |
|
Columbus Rest Area Westbound Columbus · Stillwater County |
800 | 0 | 0 | |
|
Emigrant Rest Stop Emigrant · Park County |
800 | 0 | 0 | |
|
Big Sky Food and Fuel INC East Helena · Lewis and Clark County |
770 | 0 | 0 | |
|
Glacier Park INC East Glacier · Glacier County |
765 | 0 | 0 | |
|
Town Pump Gore Hill Great Falls · Cascade County |
760 | 0 | 0 | |
|
Caseys Corner 9 Gallatin Gateway · Gallatin County |
759 | 1 | 0 | |
|
Town Pump Lolo 1 Lolo · Missoula County |
744 | 0 | 0 | |
|
West Gate KOA CG West Yellowstone · Gallatin County |
722 | 1 | 0 | |
|
Hardin Westbound Rest Area Hardin · Big Horn County |
715 | 2 | 0 | |
|
Lost Trail Rest Area Sula · Ravalli County |
701 | 1 | 0 | |
|
Easthaven Baptist Church Whitefish · Flathead County |
700 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
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.