Revised Total Coliform Rule (RTCR) violations in Idaho
630 active public water systems in Idaho had a Revised Total Coliform Rule (RTCR) violation in the past three years, 152 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 |
|---|---|---|---|---|
|
Nur Water Assn Idaho Falls · Bonneville County |
60 | 3 | 0 | |
|
Rich Subd Canyon County |
60 | 5 | 1 | |
|
Lds Camp Ho-Nak Bear Lake County |
57 | 3 | 1 | |
|
Valley View Water Nampa · Canyon County |
57 | 3 | 1 | |
|
7n Ranch Jefferson County |
56 | 4 | 0 | |
|
Teton House Jefferson County |
56 | 3 | 0 | |
|
The Arthur Companies Bingham County |
56 | 2 | 0 | |
|
Big Wheel RV and Campground Shoshone County |
55 | 2 | 0 | |
|
Gypsy Bay Water Assn Bonner County |
55 | 1 | 0 | |
|
Henrys Fork Village Water Corp Fremont County |
55 | 1 | 0 | |
|
Howe Townsite Butte County |
55 | 1 | 0 | |
|
Ridge at Sun UP Bay Water System Kootenai County |
55 | 1 | 0 | |
|
Clear Lake Ranch P U D Gooding County |
54 | 6 | 2 | |
|
Pioneer Mobile Home Park LLC Homedale · Owyhee County |
53 | 4 | 1 | |
|
Dahl Subd Canyon County |
51 | 4 | 3 | |
|
Legacy Fields Twin Falls County |
51 | 2 | 1 | |
|
American Motel Power County |
50 | 3 | 2 | |
|
Baker Ranch Bannock County |
50 | 3 | 1 | |
|
Balanced Rock Park Twin Falls County |
50 | 2 | 1 | |
|
Bethel Baptist Church Rigby · Jefferson County |
50 | 2 | 0 | |
|
Big Juds Well Madison County |
50 | 1 | 0 | |
|
Boise Gun Club Ada County |
50 | 1 | 0 | |
|
Calamity Water Users Assn Palisades · Bonneville County |
50 | 2 | 1 | |
|
Cascade Christian Church Camp Valley County |
50 | 2 | 1 | |
|
Idpr Challis Hot Springs Campground Custer County |
50 | 1 | 0 | |
|
Clear Creek Lodge Boise County |
50 | 3 | 2 | |
|
Coeur D Alene Elks Lodge 1254 Kootenai County |
50 | 1 | 0 | |
|
Elements Kitchen + Bar Gem County |
50 | 2 | 0 | |
|
Itd Hagerman Rest Area Gooding County |
50 | 3 | 0 | |
|
Idpr Massacre Rocks SP Power County |
50 | 1 | 0 | |
|
Idpr Yankee Fork Historic Area Custer County |
50 | 2 | 1 | |
|
Key Mart Corner Elmore County |
50 | 3 | 1 | |
|
Lakeshore Market Canyon County |
50 | 3 | 1 | |
|
Lds Camp Peine Bonner County |
50 | 1 | 0 | |
|
Les Schwab Priest River Bonner County |
50 | 2 | 1 | |
|
Mother Hibbards Madison County |
50 | 1 | 0 | |
|
Oasis Stop N GO Twin Falls County |
50 | 3 | 1 | |
|
Picabo Water System Blaine County |
50 | 1 | 0 | |
|
Pindale Lanes Bingham County |
50 | 2 | 1 | |
|
Powderhorn Water Assn Kootenai County |
50 | 3 | 2 | |
|
Priest Lake Community Church Bonner County |
50 | 1 | 0 | |
|
Rigby Air Village LLC Rigby · Jefferson County |
50 | 3 | 2 | |
|
River Canyon Retreat Boise County |
50 | 2 | 0 | |
|
Santa Maria Style Grilling Idaho Falls · Bonneville County |
50 | 3 | 1 | |
|
Sawtelle Mountain Resort Fremont County |
50 | 3 | 0 | |
|
Soldier Mountain Ski Area INC Camas County |
50 | 4 | 1 | |
|
Spencer Grill & RV Park Clark County |
50 | 2 | 0 | |
|
Terreton Pump 2 Jefferson County |
50 | 3 | 1 | |
|
Triangle Restaurant Gem County |
50 | 2 | 0 | |
|
Tyhee Enterprises Bannock County |
50 | 1 | 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 Idaho 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.