All water systems in Montana
2,352 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Beef N Bone Steakhouse Ulm · Cascade County |
123 | 0 | 0 | |
|
Daly Estates Subdivision Hamilton · Ravalli County |
123 | 0 | 0 | |
|
The Benches Whitefish · Flathead County |
123 | 0 | 0 | |
|
Whitefish KOA Whitefish · Flathead County |
123 | 1 | 0 | |
|
Yellowstone Airport W Yel West Yellowstone · Gallatin County |
123 | 0 | 0 | |
|
Lazy J South Subdivision Bozeman · Gallatin County |
122 | 0 | 0 | |
|
Placid Lake State Park Missoula · Missoula County |
122 | 0 | 0 | |
|
Big Sky Bible Camp Bigfork · Flathead County |
121 | 0 | 0 | |
|
Creston School District 9 Kalispell · Flathead County |
121 | 0 | 0 | |
|
Lubrecht Experimental Forest Greenough · Missoula County |
121 | 1 | 0 | |
|
Ace Hardware North Helena Helena · Lewis and Clark County |
120 | 0 | 0 | |
|
Arrowhead School District NO 75 Pray · Park County |
120 | 2 | 0 | |
|
Belgrade King Hall Jehovah Witn Unapprov Belgrade · Gallatin County |
120 | 0 | 0 | |
|
Birch Creek Colony Valier · Pondera County |
120 | 0 | 0 | |
|
Bitterroot Meadows HOA Lolo Missoula · Missoula County |
120 | 1 | 1 | |
|
Coal Banks Landing Blm Lewistown · Chouteau County |
120 | 2 | 0 | |
|
Dodson Town of Dodson · Phillips County |
120 | 5 | 1 | |
|
Finley Point MT State Park Polson · Lake County |
120 | 0 | 0 | |
|
Holbrook Estates Kalispell · Flathead County |
120 | 1 | 1 | |
|
Joe & Dee's Glendive · Dawson County |
120 | 2 | 0 | |
|
Kingsbury Colony Valier · Pondera County |
120 | 0 | 0 | |
|
Longbranch Casino Ballantine · Yellowstone County |
120 | 0 | 0 | |
|
Madison Valley Baptist Church Unapproved Ennis · Madison County |
120 | 1 | 0 | |
|
Meadow Brook Park Frenchtown · Missoula County |
120 | 0 | 0 | |
|
Pleasant Valley Colony Belt · Cascade County |
120 | 1 | 0 | |
|
Sun Life Health Foods Kalispell · Flathead County |
120 | 2 | 0 | |
|
Travelers Rest Ropers Lounge Lolo · Missoula County |
120 | 2 | 0 | |
|
Triple Creek Ranch Darby · Ravalli County |
120 | 1 | 1 | |
|
Wild Flower HOA the Hamilton · Ravalli County |
120 | 1 | 0 | |
|
Jerrys Saloon Fortine · Lincoln County |
119 | 0 | 0 | |
|
Wettington Water District INC Kalispell · Flathead County |
119 | 4 | 1 | |
|
Mission Mountain Lake CO W and S Dist Ronan · Lake County |
118 | 0 | 0 | |
|
Northwest Indian Bible School Alberton · Missoula County |
118 | 0 | 0 | |
|
Northwest Water Treatment CO Bozeman · Gallatin County |
118 | 2 | 1 | |
|
Papa Rays Casino and Hugos Pizza Montana City · Jefferson County |
118 | 0 | 0 | |
|
Madison Arm Resort West Yellowstone · Gallatin County |
117 | 1 | 0 | |
|
Roosville Border Station Eureka · Lincoln County |
117 | 0 | 0 | |
|
Tally Lake Campground Kalispell · Flathead County |
117 | 1 | 0 | |
|
Woolzies Willow Creek Cafe Willow Creek · Gallatin County |
117 | 1 | 0 | |
|
Big Arm Water System County |
116 | 2 | 0 | |
|
Kopper Kitchen Kalispell · Flathead County |
116 | 1 | 0 | |
|
Seville Colony Cut Bank · Glacier County |
116 | 1 | 0 | |
|
Camp Mak-A-Dream Missoula · Powell County |
115 | 0 | 0 | |
|
Centennial Homeowner's Association, INC Corvallis · Ravalli County |
115 | 0 | 0 | |
|
Clinton Market Clinton · Missoula County |
115 | 0 | 0 | |
|
Eagle Ridge Estates CO W and S Dist Kalispell · Flathead County |
115 | 0 | 0 | |
|
Jackson Creek Bar and Grille Clancy · Jefferson County |
115 | 2 | 1 | |
|
Riverwalk and Dinos Estates Missoula · Missoula County |
115 | 0 | 0 | |
|
Sidney Richland County Airport Unapprove Sidney · Richland County |
115 | 2 | 0 | |
|
ST Anthony Orthodox Church Bozeman · Gallatin County |
115 | 2 | 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 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.