All water systems in Montana
2,352 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Antler Ridge Homeowners Association Big Sky · Gallatin County |
50 | 0 | 0 | |
|
Augusta MT RV Park Augusta · Lewis and Clark County |
50 | 2 | 0 | |
|
Back Roads Bar and Grill Great Falls · Cascade County |
50 | 1 | 0 | |
|
Basin Campground Red Lodge · Carbon County |
50 | 1 | 1 | |
|
Belgrade Commercial Park PWS Belgrade · Gallatin County |
50 | 0 | 0 | |
|
Belgrade Trailer Court Belgrade · Gallatin County |
50 | 2 | 0 | |
|
Benny's Frenchtown Club LLC Frenchtown · Missoula County |
50 | 0 | 0 | |
|
Best View Estates Somers · Flathead County |
50 | 0 | 0 | |
|
Brockway Supper Club Circle · McCone County |
50 | 1 | 0 | |
|
Buffalo Joe's Conrad · Pondera County |
50 | 1 | 0 | |
|
Camp Creek Wua INC Zortman · Phillips County |
50 | 1 | 0 | |
|
Camp Mimanagish Mcleod · Sweet Grass County |
50 | 1 | 0 | |
|
Cardwell Campground LLC Cardwell · Jefferson County |
50 | 2 | 0 | |
|
Carols Trailer Court Missoula · Missoula County |
50 | 0 | 0 | |
|
Central Water Conditioning Sidney · Richland County |
50 | 2 | 0 | |
|
Cobblestone Court Great Falls · Cascade County |
50 | 0 | 0 | |
|
Cooney Enterprises Billings · Carbon County |
50 | 1 | 0 | |
|
Corricks River Bend Fas Missoula · Missoula County |
50 | 0 | 0 | |
|
Corvallis Tavern Corvallis · Ravalli County |
50 | 0 | 0 | |
|
Cottonwood Estates Big Timber · Sweet Grass County |
50 | 0 | 0 | |
|
Crane Mountain Estates Bigfork - Lake Co · Lake County |
50 | 1 | 0 | |
|
Devil Creek Campground Kalispell · Flathead County |
50 | 0 | 0 | |
|
District Court LLC Kalispell · Flathead County |
50 | 1 | 0 | |
|
Divide Campground Blm Butte · Beaverhead County |
50 | 0 | 0 | |
|
Double Diamond Subdivision Arbor Hills Billings · Yellowstone County |
50 | 1 | 0 | |
|
Eagle Mountain Rural PWS Columbus · Stillwater County |
50 | 1 | 0 | |
|
Flowing Wells Rest Stop Jordan · Garfield County |
50 | 2 | 0 | |
|
Forest Hill HOA Kalispell · Flathead County |
50 | 0 | 0 | |
|
Fortress of Joy Oneighty Bldg Helena · Lewis and Clark County |
50 | 0 | 0 | |
|
Fosters Country View TR PK LLC Kalispell · Flathead County |
50 | 0 | 0 | |
|
Franklin Hills Subdivision Bozeman · Gallatin County |
50 | 0 | 0 | |
|
Frenchtown Valley View TR CT Frenchtown · Missoula County |
50 | 0 | 0 | |
|
Gallatin Riverhouse Grill Gallatin Gateway · Gallatin County |
50 | 1 | 0 | |
|
Glacier Gold Casino Flathead County |
50 | 0 | 0 | |
|
Glass Slipper Lounge and Grocery Helena · Lewis and Clark County |
50 | 2 | 0 | |
|
Grand Valley Estates Subdivision Helena · Lewis and Clark County |
50 | 0 | 0 | |
|
Granite Park Chalet West Glacier · Flathead County |
50 | 0 | 0 | |
|
Gravel Hollow LLC Gallatin County |
50 | 0 | 0 | |
|
Greenough Lake CG Well NO 1 Red Lodge · Carbon County |
50 | 0 | 0 | |
|
Grove the Missoula · Missoula County |
50 | 0 | 0 | |
|
Havn Glacier Whitefish · Flathead County |
50 | 0 | 0 | |
|
Hawarden Square Butte Water Fort Benton · Chouteau County |
50 | 2 | 1 | |
|
Headwaters Picnic Area Three Forks · Gallatin County |
50 | 2 | 0 | |
|
Helena North KOA Helena · Lewis and Clark County |
50 | 0 | 0 | |
|
Hell Creek Marina Fort Peck · Garfield County |
50 | 2 | 1 | |
|
Hilltop Water Columbus · Stillwater County |
50 | 0 | 0 | |
|
Holt Stage Hideaway Kalispell · Flathead County |
50 | 0 | 0 | |
|
Honey Lane Community Hamilton · Ravalli County |
50 | 0 | 0 | |
|
Houle Villa Water System County |
50 | 2 | 0 | |
|
Immaculate Conception Catholic Church Troy · Lincoln County |
50 | 1 | 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.