All water systems in Montana
2,352 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Raven Bar Bigfork - Lake Co · Lake County |
100 | 0 | 0 | |
|
Red Lodge KOA Campground Red Lodge · Carbon County |
100 | 0 | 0 | |
|
Riders Trailer Court Manhattan · Gallatin County |
100 | 4 | 0 | |
|
River Grove Estates TR CT Billings · Yellowstone County |
100 | 1 | 1 | |
|
Riverside Campground Helena · Lewis and Clark County |
100 | 2 | 0 | |
|
Riverside Mobile Home Park Columbia Falls · Flathead County |
100 | 2 | 2 | |
|
Roberts Rest Area Billings · Carbon County |
100 | 1 | 0 | |
|
Rocky Mountain Baptist Church Kalispell · Flathead County |
100 | 0 | 0 | |
|
Rolling Rubber Point S Glendive Glendive · Dawson County |
100 | 2 | 0 | |
|
Rosas Pizza Yellowstone Boys Girls Rnh Livingston · Park County |
100 | 1 | 0 | |
|
Rosebud School District NO 12 Rosebud · Rosebud County |
100 | 3 | 0 | |
|
Ruby Creek Campground Dillon · Madison County |
100 | 1 | 0 | |
|
Russell Gates Memorial Fas Missoula · Missoula County |
100 | 0 | 0 | |
|
Safeway NO 1646 Polson · Lake County |
100 | 0 | 0 | |
|
Settlement the Manhattan · Gallatin County |
100 | 0 | 0 | |
|
Seven Gables Resort Anaconda · Deer Lodge County |
100 | 3 | 0 | |
|
Seventh Day Adventist Church Kalispell Kalispell · Flathead County |
100 | 1 | 0 | |
|
Shade Tree Mobile Park Great Falls · Cascade County |
100 | 1 | 0 | |
|
Shepherd Water Station Shepherd · Yellowstone County |
100 | 2 | 0 | |
|
Springwater Colony Harlowton · Wheatland County |
100 | 2 | 0 | |
|
Stans Garden Belgrade · Gallatin County |
100 | 2 | 0 | |
|
Sweetgrass Water Users Assn Sweetgrass · Toole County |
100 | 3 | 1 | |
|
Thompson Ranchettes II Kalispell · Flathead County |
100 | 0 | 0 | |
|
Tri Hil Wua Gore Hill Great Falls · Cascade County |
100 | 3 | 1 | |
|
Vsh of Montana LLC Victor · Ravalli County |
100 | 1 | 0 | |
|
Wagon Wheel Bar Glendive · Dawson County |
100 | 1 | 0 | |
|
Water Drop LLC Billings · Yellowstone County |
100 | 1 | 0 | |
|
Whispering Trees Mobile Park Glendive · Dawson County |
100 | 0 | 0 | |
|
White Earth Recreation Area East Helena · Broadwater County |
100 | 2 | 0 | |
|
Chicks Bar Alder · Madison County |
98 | 0 | 0 | |
|
Fortine School District 14 Fortine · Lincoln County |
98 | 1 | 0 | |
|
Harveys Mobile Home Park Missoula · Missoula County |
98 | 2 | 0 | |
|
North Forestvale Homeowners Helena · Lewis and Clark County |
98 | 2 | 0 | |
|
Bissell School District NO 58 Kalispell · Flathead County |
97 | 0 | 0 | |
|
Coffee Pot Bakery and Cafe Bozeman · Gallatin County |
97 | 1 | 0 | |
|
Ramsay Water and Sewer District Ramsay · Silver Bow County |
97 | 3 | 0 | |
|
Rollins Restaurant RV Park Rollins · Lake County |
97 | 2 | 1 | |
|
Turner School District NO 43 Turner · Blaine County |
97 | 2 | 0 | |
|
Birney Village County |
96 | 2 | 0 | |
|
Camel Mountain HOA Helena · Lewis and Clark County |
96 | 1 | 0 | |
|
Camelot HOA Helena · Lewis and Clark County |
96 | 1 | 0 | |
|
Duncan Ranch Colony Harlowton · Wheatland County |
96 | 0 | 0 | |
|
Mystic Heights HOA Bozeman Bozeman · Gallatin County |
96 | 0 | 0 | |
|
Outlook County Sewer and Water Outlook · Sheridan County |
96 | 1 | 0 | |
|
Terra Nova Cabins West Yellowstone · Gallatin County |
96 | 0 | 0 | |
|
Buzz Inn East Helena · Lewis and Clark County |
95 | 1 | 0 | |
|
Camrose Colony Ledger · Toole County |
95 | 3 | 0 | |
|
Libby Dam Project Libby · Lincoln County |
95 | 0 | 0 | |
|
North Haven Heights Water Assoc INC Kalispell · Flathead County |
95 | 0 | 0 | |
|
Paradise Pines Polson · Lake County |
95 | 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.