All water systems in Montana
1,183 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Town Pump Butte Comfort Inn Butte · Silver Bow County |
125 | 0 | 0 | |
|
Whitewater Inn Gallatin Gateway · Gallatin County |
125 | 2 | 0 | |
|
Square Dance Center and Campground Lolo · Missoula County |
124 | 0 | 0 | |
|
Beef N Bone Steakhouse Ulm · Cascade County |
123 | 0 | 0 | |
|
Whitefish KOA Whitefish · Flathead County |
123 | 1 | 0 | |
|
Yellowstone Airport W Yel West Yellowstone · Gallatin County |
123 | 0 | 0 | |
|
Placid Lake State Park Missoula · Missoula County |
122 | 0 | 0 | |
|
Big Sky Bible Camp Bigfork · Flathead County |
121 | 0 | 0 | |
|
Lubrecht Experimental Forest Greenough · Missoula County |
121 | 1 | 0 | |
|
Ace Hardware North Helena Helena · Lewis and Clark County |
120 | 0 | 0 | |
|
Belgrade King Hall Jehovah Witn Unapprov Belgrade · Gallatin County |
120 | 0 | 0 | |
|
Coal Banks Landing Blm Lewistown · Chouteau County |
120 | 2 | 0 | |
|
Finley Point MT State Park Polson · Lake County |
120 | 0 | 0 | |
|
Joe & Dee's Glendive · Dawson County |
120 | 2 | 0 | |
|
Longbranch Casino Ballantine · Yellowstone County |
120 | 0 | 0 | |
|
Madison Valley Baptist Church Unapproved Ennis · Madison County |
120 | 1 | 0 | |
|
Sun Life Health Foods Kalispell · Flathead County |
120 | 2 | 0 | |
|
Travelers Rest Ropers Lounge Lolo · Missoula County |
120 | 2 | 0 | |
|
Jerrys Saloon Fortine · Lincoln County |
119 | 0 | 0 | |
|
Papa Rays Casino and Hugos Pizza Montana City · Jefferson County |
118 | 0 | 0 | |
|
Madison Arm Resort West Yellowstone · Gallatin County |
117 | 1 | 0 | |
|
Roosville Border Station Eureka · Lincoln County |
117 | 0 | 0 | |
|
Tally Lake Campground Kalispell · Flathead County |
117 | 1 | 0 | |
|
Woolzies Willow Creek Cafe Willow Creek · Gallatin County |
117 | 1 | 0 | |
|
Kopper Kitchen Kalispell · Flathead County |
116 | 1 | 0 | |
|
Camp Mak-A-Dream Missoula · Powell County |
115 | 0 | 0 | |
|
Clinton Market Clinton · Missoula County |
115 | 0 | 0 | |
|
Jackson Creek Bar and Grille Clancy · Jefferson County |
115 | 2 | 1 | |
|
Sidney Richland County Airport Unapprove Sidney · Richland County |
115 | 2 | 0 | |
|
ST Anthony Orthodox Church Bozeman · Gallatin County |
115 | 2 | 0 | |
|
Terry Downtown Wua Terry · Prairie County |
115 | 2 | 0 | |
|
Yacht Basin Marina and TR CT Helena · Lewis and Clark County |
115 | 2 | 0 | |
|
L and C Caverns State Park CG Cardwell · Jefferson County |
114 | 0 | 0 | |
|
Bear Canyon Campground Bozeman · Gallatin County |
112 | 0 | 0 | |
|
Best Western Plus Flathead Lake Inn Kalispell · Flathead County |
112 | 0 | 0 | |
|
Drunk'n Miner Copper Spirits Casino Butte · Silver Bow County |
112 | 0 | 0 | |
|
Finley Point Grill Polson · Lake County |
112 | 0 | 0 | |
|
Hitchin Post the Melrose · Silver Bow County |
111 | 1 | 0 | |
|
Bozeman #9 Town Pump Bozeman · Gallatin County |
110 | 0 | 0 | |
|
Lds Church Superior Superior · Mineral County |
110 | 0 | 0 | |
|
McNulty Investments Stevensville · Ravalli County |
110 | 0 | 0 | |
|
Montana Frontier Cafe Stevensville · Ravalli County |
110 | 2 | 0 | |
|
Mountain Lake Lodge Bigfork · Lake County |
110 | 0 | 0 | |
|
7715 Ownership LLC Bozeman · Gallatin County |
109 | 0 | 0 | |
|
Double Arrow Lodge Seeley Lake · Missoula County |
109 | 0 | 0 | |
|
7 R Guest Ranch Wolf Creek · Lewis and Clark County |
108 | 2 | 1 | |
|
Country Side RV Park Dillon · Beaverhead County |
108 | 0 | 0 | |
|
Craig Bar Wolf Creek · Lewis and Clark County |
108 | 2 | 0 | |
|
Crazy Mountain Ranch Clyde Park · Park County |
108 | 0 | 0 | |
|
Headwaters Livestock Auction Three Forks · Broadwater County |
108 | 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.