All water systems in Montana
1,183 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Shepherd Dollar General Water System Shepherd · Yellowstone County |
303 | 0 | 0 | |
|
Thompson Falls Dollar General Thompson Falls · Sanders County |
303 | 0 | 0 | |
|
Victor Dollar General Victor · Ravalli County |
303 | 0 | 0 | |
|
Bozeman Hot Springs Campground & RV Park Bozeman · Gallatin County |
302 | 0 | 0 | |
|
Camelot Ranch Event Center Billings · Yellowstone County |
300 | 1 | 0 | |
|
Frenchtown Pond State Park Missoula · Missoula County |
300 | 0 | 0 | |
|
Frontier Inn Great Falls · Cascade County |
300 | 0 | 0 | |
|
Haufbrau Anaconda · Deer Lodge County |
300 | 1 | 0 | |
|
Holter Dam CG Blm Wolf Creek · Lewis and Clark County |
300 | 1 | 0 | |
|
Kims Marina and Resort Helena · Lewis and Clark County |
300 | 3 | 2 | |
|
Palisades Campground Dillon · Madison County |
300 | 1 | 0 | |
|
Peter Yegen JR Golf Club Billings · Yellowstone County |
300 | 1 | 0 | |
|
Picchionis Iga Roundup · Musselshell County |
300 | 1 | 0 | |
|
Rockvale Travel Plaza Joliet Silesia · Carbon County |
300 | 0 | 0 | |
|
Snowline Acres Kalispell · Flathead County |
300 | 1 | 0 | |
|
Tongue River Pee Wee Point Decker · Big Horn County |
300 | 0 | 0 | |
|
Town and Country Dba Market Basket Billings · Yellowstone County |
300 | 0 | 0 | |
|
X Overland Ranch Three Forks · Gallatin County |
288 | 1 | 0 | |
|
Pipestone RV Park Whitehall · Jefferson County |
286 | 1 | 0 | |
|
Bowers Market Corvallis Corvallis · Ravalli County |
274 | 0 | 0 | |
|
Kountry Korner Cafe Bozeman · Gallatin County |
274 | 2 | 0 | |
|
Larchmont Golf Course Missoula · Missoula County |
268 | 0 | 0 | |
|
Korner Klub Bozeman · Gallatin County |
264 | 2 | 0 | |
|
Taco Johns Reserve Missoula · Missoula County |
264 | 0 | 0 | |
|
Fairmont RV Resort Anaconda · Silver Bow County |
263 | 2 | 0 | |
|
Chief Plenty Coups Museum Pryor · Big Horn County |
262 | 0 | 0 | |
|
Forlorn Hope LLC Missoula · Missoula County |
262 | 3 | 1 | |
|
Glacier Ridge HOA & Water Association West Glacier · Flathead County |
262 | 0 | 0 | |
|
Allard's Stage Stop County |
260 | 3 | 1 | |
|
Blacktail Mountain Ski Area Lakeside · Flathead County |
260 | 1 | 0 | |
|
Gardiner Business Park Gardiner · Park County |
260 | 1 | 0 | |
|
Montana Council of Boy Scouts of America Big Arm · Lake County |
259 | 0 | 0 | |
|
North American RV Park Coram · Flathead County |
257 | 0 | 0 | |
|
Parkers Drummond · Granite County |
256 | 1 | 1 | |
|
Broadus Rest Area Broadus · Powder River County |
255 | 0 | 0 | |
|
Garnet Ghost Town Blm Drummond · Granite County |
254 | 1 | 0 | |
|
Lolo Community Church Missoula · Missoula County |
252 | 0 | 0 | |
|
Gates of the Mountains INC Helena · Lewis and Clark County |
251 | 2 | 0 | |
|
Mariners Haven Subdivision Rexford · Lincoln County |
251 | 0 | 0 | |
|
Clark's Bay Rec Site Helena · Lewis and Clark County |
250 | 1 | 0 | |
|
Montana City Grill and Saloon Clancy · Jefferson County |
250 | 0 | 0 | |
|
New Life Church Billings · Yellowstone County |
250 | 0 | 0 | |
|
Pictograph Cave State Park Billings · Yellowstone County |
250 | 0 | 0 | |
|
Spring Meadow Lake State Park Helena · Lewis and Clark County |
250 | 0 | 0 | |
|
Tractor Supply Company Glendive Glendive · Dawson County |
250 | 0 | 0 | |
|
Vandalia Glasgow West Rest Area Glasgow · Valley County |
250 | 0 | 0 | |
|
Red Fox Supper Club Helena · Lewis and Clark County |
245 | 1 | 0 | |
|
Stillwater Free Lutheran Church Kalispell · Flathead County |
240 | 0 | 0 | |
|
Four Corners Steak and Tap Eureka · Lincoln County |
238 | 0 | 0 | |
|
Springhill Plaza Condo Assoc Bozeman · Gallatin County |
235 | 0 | 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.