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.
Health effects: Total coliform bacteria indicate that the disinfection barrier has been breached or fecal contamination is entering the system. E. coli specifically indicates fecal contamination and the possible presence of disease-causing pathogens (norovirus, Salmonella, Shigella, Campylobacter). Illness can be severe in elderly, young children, and immunocompromised individuals.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Yellowstone Bible Camp Pray Pray · Park County |
135 | 2 | 0 | |
|
Terry High School District NO 5 Terry · Prairie County |
133 | 3 | 0 | |
|
Outback Montana RV Park Bigfork - Lake Co · Lake County |
130 | 1 | 0 | |
|
Pine Meadows Golf Course Elks 456 the Lewistown · Fergus County |
130 | 2 | 0 | |
|
Beaver Creek Golf Course Havre · Hill County |
128 | 2 | 0 | |
|
Eureka Ranger Station Eureka · Lincoln County |
127 | 1 | 0 | |
|
Abundant Life Church Bozeman · Gallatin County |
125 | 2 | 0 | |
|
Bar N Restaurant West Yellowstone · Gallatin County |
125 | 1 | 0 | |
|
Billings Christian High School Billings · Yellowstone County |
125 | 2 | 0 | |
|
Hobson Town of Hobson · Judith Basin County |
125 | 2 | 0 | |
|
Pleasant Park Community INC Great Falls · Cascade County |
125 | 3 | 0 | |
|
Whitefish KOA Whitefish · Flathead County |
123 | 1 | 0 | |
|
Arrowhead School District NO 75 Pray · Park County |
120 | 2 | 0 | |
|
Coal Banks Landing Blm Lewistown · Chouteau County |
120 | 2 | 0 | |
|
Joe & Dee's Glendive · Dawson County |
120 | 2 | 0 | |
|
Travelers Rest Ropers Lounge Lolo · Missoula County |
120 | 2 | 0 | |
|
Wettington Water District INC Kalispell · Flathead County |
119 | 4 | 1 | |
|
Madison Arm Resort West Yellowstone · Gallatin County |
117 | 1 | 0 | |
|
Woolzies Willow Creek Cafe Willow Creek · Gallatin County |
117 | 1 | 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 | |
|
Woodside Park County Water and Sewer Dis Thompson Falls · Sanders County |
115 | 1 | 0 | |
|
Yacht Basin Marina and TR CT Helena · Lewis and Clark County |
115 | 2 | 0 | |
|
Hitchin Post the Melrose · Silver Bow County |
111 | 1 | 0 | |
|
Craig Bar Wolf Creek · Lewis and Clark County |
108 | 2 | 0 | |
|
Headwaters Livestock Auction Three Forks · Broadwater County |
108 | 1 | 0 | |
|
Bear's Lair Florence · Ravalli County |
107 | 2 | 0 | |
|
Montana Bonfire LLC Bigfork - Lake Co · County |
107 | 1 | 0 | |
|
Town Haul Diner Harrison · Madison County |
107 | 2 | 1 | |
|
Ekstroms Stage Station Clinton · Missoula County |
105 | 1 | 0 | |
|
Trixis Antler Saloon Ovando · Powell County |
105 | 2 | 0 | |
|
Highlander Bar and Grill Helena · Lewis and Clark County |
104 | 2 | 0 | |
|
Rock Creek Fishermans Merc Clinton · Missoula County |
104 | 2 | 0 | |
|
Beargrass Lodging & RV Resort Hungry Horse · Flathead County |
103 | 1 | 0 | |
|
Bozeman Trail Campground Bozeman · Gallatin County |
102 | 2 | 0 | |
|
Liquid Louies Bar Condon · Missoula County |
102 | 1 | 0 | |
|
Canyon View Church Hamilton · Ravalli County |
100 | 2 | 0 | |
|
Cattlemen's Cafe Sidney · Richland County |
100 | 2 | 0 | |
|
Causeway Chalet Helena · Lewis and Clark County |
100 | 3 | 1 | |
|
Chinaman Gulch Campground Helena · Lewis and Clark County |
100 | 2 | 0 | |
|
Country Haven Estates Whispering Pines Columbus · Stillwater County |
100 | 4 | 0 | |
|
Dailys Premium Meats Missoula · Missoula County |
100 | 1 | 0 | |
|
Gallatin Village Mob HM Park Bozeman · Gallatin County |
100 | 3 | 2 | |
|
Harrison School District NO 23 Harrison · Madison County |
100 | 3 | 0 | |
|
Headwaters Rest Area Three Forks · Broadwater County |
100 | 2 | 0 | |
|
Jefferson City North Rest Stop Jefferson City · Jefferson County |
100 | 2 | 0 | |
|
L and M Building Stevensville · Ravalli County |
100 | 1 | 0 | |
|
Mobile City Home Park NO 1 Helena · Lewis and Clark County |
100 | 1 | 0 | |
|
Riverside Campground Helena · Lewis and Clark County |
100 | 2 | 0 |
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.