All water systems in Montana
2,352 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bair Family Museum Martinsdale · Meagher County |
83 | 1 | 0 | |
|
DT Ventures Gallatin Gateway · Gallatin County |
83 | 1 | 0 | |
|
Jays Food Store Missoula · Missoula County |
83 | 0 | 0 | |
|
Valley Hub Helena · Lewis and Clark County |
83 | 0 | 0 | |
|
Bakers Hole CG Bozeman · Gallatin County |
82 | 0 | 0 | |
|
Bannack State Park Upper CG Dillon · Beaverhead County |
82 | 0 | 0 | |
|
Designs for Health INC Arlee · Lake County |
82 | 0 | 0 | |
|
Flaxville Town of Flaxville · Daniels County |
82 | 4 | 1 | |
|
Lincoln Log Hotel Lincoln · Lewis and Clark County |
82 | 2 | 0 | |
|
McGregor Lakes RV LLC Marion · Flathead County |
82 | 0 | 0 | |
|
South Forestvale HOA Helena · Lewis and Clark County |
82 | 1 | 0 | |
|
Spring Creek MHP Kalispell · Flathead County |
82 | 0 | 0 | |
|
Templed Hills Baptist Camp Livingston · Park County |
82 | 3 | 0 | |
|
Turah Store LLC and Turah RV Park LLC Turah · Missoula County |
82 | 0 | 0 | |
|
Valley Water System the Missoula · Missoula County |
82 | 1 | 1 | |
|
West Creek Ranch Livingston · Park County |
82 | 0 | 0 | |
|
Whispering Pines Campground Columbia Falls · Flathead County |
82 | 2 | 1 | |
|
White Bird Community the Hamilton · Ravalli County |
82 | 0 | 0 | |
|
Xanterra Employee RV Park Martin City · Flathead County |
82 | 1 | 0 | |
|
Yellowstone Under Canvas West Yellowstone · Gallatin County |
82 | 1 | 1 | |
|
Montana Learning Center Helena · Lewis and Clark County |
81 | 0 | 0 | |
|
Yaak Merc and Yaak River Tavern Troy · Lincoln County |
81 | 1 | 1 | |
|
Absaloka Mine Hardin · Big Horn County |
80 | 2 | 0 | |
|
Belton Mercantile INC Apgar West Glacier · Flathead County |
80 | 0 | 0 | |
|
Big Sky Christian Center Hamilton · Ravalli County |
80 | 0 | 0 | |
|
Camp Rotary Club Monarch Great Falls · Cascade County |
80 | 1 | 0 | |
|
Churchill Retirement Home Manhattan · Gallatin County |
80 | 0 | 0 | |
|
Crazy Mountain Ranch Employee Housing Clyde Park · Park County |
80 | 0 | 0 | |
|
Crescent Village Property Owners Associa Thompson Falls · Sanders County |
80 | 1 | 0 | |
|
Creston Center Kalispell · Flathead County |
80 | 0 | 0 | |
|
Deer Park School District 2 Kalispell · Flathead County |
80 | 0 | 0 | |
|
Glacier Colony Cut Bank · Glacier County |
80 | 0 | 0 | |
|
Grassland Colony Sand Coulee · Cascade County |
80 | 0 | 0 | |
|
Hidden Lake Colony Cut Bank · Glacier County |
80 | 2 | 1 | |
|
Hidden Valley Colony Gildford · Hill County |
80 | 1 | 0 | |
|
Jefferson Tracts Assoc INC Clancy · Jefferson County |
80 | 2 | 0 | |
|
Lds Church Absarokee Absarokee · Stillwater County |
80 | 0 | 0 | |
|
Mission Mountain View HOA Ronan · Lake County |
80 | 1 | 0 | |
|
Mitchell Court Apartments Billings · Yellowstone County |
80 | 1 | 0 | |
|
Ninepipes Lodge LLC Charlo · Lake County |
80 | 2 | 0 | |
|
Old Hays County |
80 | 0 | 0 | |
|
Outback Mobile Home Settlement Whitefish · Flathead County |
80 | 0 | 0 | |
|
Prairie Community Hospital Terry · Prairie County |
80 | 2 | 0 | |
|
Rau School District NO 21 Sidney · Richland County |
80 | 3 | 2 | |
|
Red Sky Mobile Home Community Vaughn · Cascade County |
80 | 1 | 0 | |
|
River Valley Fellowship Simms · Cascade County |
80 | 0 | 0 | |
|
Riverfront RV Park Garrison Garrison · Powell County |
80 | 0 | 0 | |
|
S&k Electronics County |
80 | 3 | 1 | |
|
South Chouteau County Water Dist Highwood · Chouteau County |
80 | 5 | 3 | |
|
Spring Tree Ridge Great Falls · Cascade County |
80 | 4 | 2 |
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.