Revised Total Coliform Rule (RTCR) violations in Montana
620 active public water systems in Montana had a Revised Total Coliform Rule (RTCR) violation in the past three years, 204 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Curious Minds Preschool Corvallis · Ravalli County |
69 | 1 | 0 | |
|
Park 168 Bar & 520 Hotel West Yellowstone · Gallatin County |
66 | 1 | 1 | |
|
Elkhorn Ranch Gallatin Gateway · Gallatin County |
65 | 4 | 2 | |
|
Penny Creek Restaurant & Lounge Lincoln · Lewis and Clark County |
65 | 1 | 1 | |
|
Melrose Bar Melrose · Silver Bow County |
64 | 3 | 0 | |
|
Yellowstone Cabins West Yellowstone · Gallatin County |
64 | 1 | 0 | |
|
Driftwaters Resort Cameron · Madison County |
63 | 1 | 0 | |
|
Ponderosa Investment INC St Regis · Mineral County |
63 | 1 | 1 | |
|
Ridgeview Subdivision Phase One Billings · Yellowstone County |
60 | 2 | 1 | |
|
Dickey Lake Campground North Fortine · Lincoln County |
58 | 1 | 0 | |
|
Triple Divide Lodge Marion · Flathead County |
58 | 1 | 0 | |
|
Camp Marshall Polson · Lake County |
57 | 2 | 0 | |
|
Montana City Mercantile Hardware Cafe Clancy · Jefferson County |
56 | 2 | 0 | |
|
Hope Baptist Church Milltown · Missoula County |
55 | 1 | 0 | |
|
Mountain Shadows Estates Stevensville Stevensville · Ravalli County |
55 | 1 | 1 | |
|
Skyview Park Kalispell · Flathead County |
55 | 1 | 0 | |
|
Lost Trail Hot Springs Resort Sula · Ravalli County |
54 | 3 | 2 | |
|
Checkerboard Bar Motel and TR CT Martinsdale · Meagher County |
52 | 2 | 0 | |
|
Dirty Shame Saloon Troy · Lincoln County |
52 | 1 | 1 | |
|
Grasshopper Campground Dillon · Beaverhead County |
52 | 1 | 0 | |
|
Merry Widow Health Mine Unapproved Basin · Jefferson County |
52 | 1 | 1 | |
|
Thompson Falls Golf Course Thompson Falls · Sanders County |
52 | 1 | 0 | |
|
Trego Pub & Eatery Trego · Lincoln County |
52 | 1 | 0 | |
|
Back Roads Bar and Grill Great Falls · Cascade County |
50 | 1 | 0 | |
|
Camp Mimanagish Mcleod · Sweet Grass County |
50 | 1 | 0 | |
|
Cardwell Campground LLC Cardwell · Jefferson County |
50 | 2 | 0 | |
|
Vigilante Gold Lavina · Golden Valley County |
50 | 1 | 1 | |
|
Glass Slipper Lounge and Grocery Helena · Lewis and Clark County |
50 | 2 | 0 | |
|
Headwaters Picnic Area Three Forks · Gallatin County |
50 | 2 | 0 | |
|
Hell Creek Marina Fort Peck · Garfield County |
50 | 2 | 1 | |
|
Izaaks Craig · Lewis and Clark County |
50 | 2 | 0 | |
|
Lakeside on Hauser East Helena · Lewis and Clark County |
50 | 3 | 0 | |
|
Pine Creek Lodge Livingston · Park County |
50 | 3 | 0 | |
|
Pops Inn Park City · Stillwater County |
50 | 2 | 0 | |
|
Rexford Bench Campground Eureka · Lincoln County |
50 | 2 | 0 | |
|
Silverado RV Park Eureka · Lincoln County |
50 | 2 | 0 | |
|
Turner Colony Turner · Blaine County |
50 | 7 | 2 | |
|
Fallon Water Well Association Fallon · Prairie County |
47 | 3 | 1 | |
|
Hereford Bar and Grill Noxon · Sanders County |
47 | 2 | 0 | |
|
McGregor Lake Campground Libby · Flathead County |
47 | 1 | 0 | |
|
Living Hope Fellowship Helena · Lewis and Clark County |
46 | 2 | 2 | |
|
Elkhorn Hotsprings Resort LLC Polaris · Beaverhead County |
45 | 2 | 1 | |
|
Bison Ridge Retreat Unapproved Whitefish · Flathead County |
44 | 1 | 0 | |
|
Montana Mountain Riders LLC West Yellowstone · Gallatin County |
43 | 2 | 1 | |
|
Sunset Camping LLC Plentywood · Sheridan County |
42 | 1 | 1 | |
|
Yaak River Campground Troy · Lincoln County |
42 | 1 | 1 | |
|
Centerville Bar Stockett · Cascade County |
40 | 2 | 0 | |
|
Cottonwood Country Club Glndv Glendive · Dawson County |
40 | 2 | 1 | |
|
Diamond Motel and Campground LLC Terry · Prairie County |
40 | 2 | 1 | |
|
Firehole Guest Ranch West Yellowstone · Gallatin County |
40 | 1 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
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.