All water systems in Montana
1,183 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Elk Lake Resort West Yellowstone · Beaverhead County |
38 | 0 | 0 | |
|
Lakeview Suites Hebgen Lake · Gallatin County |
38 | 2 | 2 | |
|
McGregor Lake Highlands Whitefish · Flathead County |
38 | 0 | 0 | |
|
North Star Ranch Unapproved Whitefish · Flathead County |
38 | 0 | 0 | |
|
2 Bar Lazy H Campground Butte · Silver Bow County |
37 | 2 | 0 | |
|
Bagnell Dental Clinic Frenchtown · Missoula County |
37 | 0 | 0 | |
|
Lasalle RV Park Columbia Falls · Flathead County |
37 | 1 | 0 | |
|
Raymond Border Station Raymond · Sheridan County |
37 | 1 | 0 | |
|
Seven Acres Ronan · Lake County |
37 | 2 | 0 | |
|
Sportsman Lodge and RV Park Melrose · Silver Bow County |
37 | 2 | 0 | |
|
Apple Barrel Kalispell · Flathead County |
36 | 1 | 0 | |
|
B and W Association Essex · Flathead County |
36 | 1 | 0 | |
|
Coyote Coffee House Lincoln · Lewis and Clark County |
36 | 0 | 0 | |
|
Kings Arena Great Falls · Cascade County |
36 | 1 | 0 | |
|
Messiah Lutheran Church Missoula · Missoula County |
36 | 0 | 0 | |
|
Mid Valley Center Stevensville · Ravalli County |
36 | 2 | 1 | |
|
Augusta Senior Citizens Center Augusta · Lewis and Clark County |
35 | 0 | 0 | |
|
Bish's RV Kalispell · Flathead County |
35 | 1 | 0 | |
|
Camp Ponderosa LLC Swan Lake · Lake County |
35 | 0 | 0 | |
|
Emigrant House Emigrant · Park County |
35 | 2 | 0 | |
|
Eureka Therapy Eureka · Lincoln County |
35 | 1 | 0 | |
|
Fin's Tap House Corvallis · Ravalli County |
35 | 2 | 1 | |
|
Glacier Business Center Whitefish · Flathead County |
35 | 0 | 0 | |
|
Jehovahs Witnesses Noxon Kingdom Hall Noxon · Sanders County |
35 | 0 | 0 | |
|
Kingdom Hall of Jehovahs Witnesses Dillon · Beaverhead County |
35 | 2 | 0 | |
|
Lds Church Forsyth Forsyth · Rosebud County |
35 | 2 | 0 | |
|
Pine Butte Choteau · Teton County |
35 | 2 | 0 | |
|
Ranch Bar the Anaconda · Deer Lodge County |
35 | 1 | 0 | |
|
Safeway NO 1158 Deer Lodge · Powell County |
35 | 1 | 0 | |
|
Sfe Hamilton · Ravalli County |
35 | 1 | 1 | |
|
Sleeping Buffalo Hot Springs INC Saco · Phillips County |
35 | 3 | 1 | |
|
Trapper Springs Campground and Day Use Norris · Madison County |
35 | 1 | 0 | |
|
Western Montana State Veterans Cemetery Missoula · Missoula County |
35 | 0 | 0 | |
|
Alley Cat Bowling and Bar the Choteau · Teton County |
34 | 0 | 0 | |
|
East Bay Subdivision County |
34 | 1 | 0 | |
|
Family Life Christian Church Kalispell · Flathead County |
34 | 1 | 0 | |
|
Libby Dam RV Park Libby · Lincoln County |
34 | 1 | 0 | |
|
Rock Creek Cattle Company Golf Course Deer Lodge · Powell County |
34 | 0 | 0 | |
|
Allens Manix Store Augusta · Lewis and Clark County |
33 | 1 | 0 | |
|
Columbus Iga Columbus · Stillwater County |
33 | 0 | 0 | |
|
Crown of the Continent DC West Glacier · Flathead County |
33 | 0 | 0 | |
|
Diamond S RV Park Ronan Ronan · Lake County |
33 | 2 | 1 | |
|
Grassy Mountain Ranch White Sulphur Springs · Meagher County |
33 | 1 | 0 | |
|
Libby Work Center Libby · Lincoln County |
33 | 1 | 1 | |
|
Parma Adddition Essex Unapproved Essex · Flathead County |
33 | 0 | 0 | |
|
ST Regis Work Center St Regis · Mineral County |
33 | 0 | 0 | |
|
Stay Express Inn Hamilton Hamilton · Ravalli County |
33 | 0 | 0 | |
|
Stay Treetops Coram Unapproved Coram · Flathead County |
33 | 1 | 1 | |
|
B and JS Convenience Store Alzada · Carter County |
32 | 1 | 0 | |
|
Bad Medicine Campground Troy · Lincoln County |
32 | 1 | 1 |
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 currently 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.