All water systems in Montana
2,352 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hollywood Heights Trailer Park LLC Missoula · Missoula County |
220 | 0 | 0 | |
|
Mnihnapa Water System County |
220 | 0 | 0 | |
|
The Nines Subdivision Billings · Yellowstone County |
220 | 0 | 0 | |
|
Wade Lake Hilltop Cliff Point CG Ennis · Madison County |
220 | 1 | 0 | |
|
Canyon Ferry Lake KOA Townsend · Broadwater County |
218 | 0 | 0 | |
|
Under Canvas Paradise Valley Livingston · Park County |
218 | 0 | 0 | |
|
Casitas del Rio Glendive · Dawson County |
216 | 4 | 0 | |
|
Ennis Hot Springs Business Park INC Ennis · Madison County |
216 | 0 | 0 | |
|
320 Ranch Gallatin Gateway · Gallatin County |
215 | 0 | 0 | |
|
Circle H Water INC Missoula · Missoula County |
215 | 1 | 0 | |
|
Murdochs Columbia Falls Columbia Falls · Flathead County |
215 | 0 | 0 | |
|
Salish Shores Trade Winds Comm Village Thompson Falls · Sanders County |
215 | 1 | 0 | |
|
Western Ranch Supply Billings · Yellowstone County |
215 | 1 | 0 | |
|
Big Hole National Battlefield Wisdom · Beaverhead County |
214 | 1 | 0 | |
|
Emigrant General Store Emigrant · Park County |
214 | 0 | 0 | |
|
Chubbys Bar and Grill Clancy · Jefferson County |
211 | 2 | 0 | |
|
Fetty's LLC Wisdom · Beaverhead County |
211 | 1 | 0 | |
|
Kips Beer Garden County |
211 | 2 | 1 | |
|
7 Point Ranch Emigrant · Park County |
210 | 1 | 0 | |
|
Ashland Community Water System County |
210 | 3 | 0 | |
|
Flathead County Water Dist 101 Columbia Falls · Flathead County |
210 | 2 | 1 | |
|
Glacier Point HO and Wua Helena · Lewis and Clark County |
210 | 2 | 0 | |
|
Rainbow Ranch Lodge Big Sky · Gallatin County |
210 | 1 | 0 | |
|
Rec Advanced Silicon Materials LLC Butte · Silver Bow County |
210 | 0 | 0 | |
|
Stockett Water and Sewer Dist Stockett · Cascade County |
210 | 2 | 0 | |
|
Subway Sandwich Shop Hamilton Hamilton · Ravalli County |
210 | 1 | 0 | |
|
Sun Canyon Lodge Augusta · Lewis and Clark County |
210 | 0 | 0 | |
|
Wagon Wheel Trailer Village Missoula · Missoula County |
210 | 1 | 1 | |
|
East Gate Work Camp Corwin Springs · Park County |
208 | 0 | 0 | |
|
Wilderness Plateau Water and Sewer Dist Troy · Lincoln County |
208 | 1 | 1 | |
|
Wise River Club Wise River · Beaverhead County |
208 | 1 | 0 | |
|
Florence Coffee Corvallis Corvallis · Ravalli County |
207 | 0 | 0 | |
|
Goodan Keil CO Water Dist Missoula · Missoula County |
207 | 0 | 0 | |
|
Happy Valley Water Dist B Kspl Whitefish · Flathead County |
207 | 0 | 0 | |
|
Rising Sun Pizza County |
207 | 0 | 0 | |
|
Big Horn CO Historical Museum Hardin · Big Horn County |
206 | 0 | 0 | |
|
Elevate Church Missoula · Missoula County |
206 | 1 | 0 | |
|
Beartooth Christian Camp Fishtail · Stillwater County |
205 | 1 | 0 | |
|
Belfry Carbon CO Water and Sewer Dist Belfry · Carbon County |
205 | 1 | 1 | |
|
Blue Moon Nite Club Col Falls Columbia Falls · Flathead County |
205 | 1 | 0 | |
|
Bridge Creek Estates Subdivision Helena · Lewis and Clark County |
205 | 0 | 0 | |
|
Curious Minds Montessori Preschool Stevensville · Ravalli County |
205 | 4 | 1 | |
|
Flathead Lake Lodge Bigfork - Lake Co · Flathead County |
205 | 0 | 0 | |
|
Johnson's of St. Mary County |
205 | 2 | 0 | |
|
Kts Hayloft Saloon Lolo · Missoula County |
205 | 0 | 0 | |
|
Lazy I Public House, LLC Dba Lazy I Beer Wolf Creek · Lewis and Clark County |
205 | 2 | 1 | |
|
North Point Bar & Grill Eureka · Lincoln County |
205 | 0 | 0 | |
|
Power Teton County Water Dist Power · Teton County |
205 | 0 | 0 | |
|
Silos Junction Townsend · Broadwater County |
205 | 0 | 0 | |
|
Flathead Lutheran Bible Camp Kalispell · Flathead County |
204 | 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.