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 |
|---|---|---|---|---|
|
Moose Crossing RV Park Mackay · Custer County |
20 | 3 | 1 | |
|
Pines RV Park Harvard · Latah County |
10 | 3 | 0 | |
|
Twin Falls City of Twin Falls County |
56,121 | 5 | 0 | |
|
Mountain Home Air Force Base Elmore County |
7,500 | 4 | 0 | |
|
Buhl City of Twin Falls County |
4,518 | 3 | 0 | |
|
Silverwood Kootenai County |
3,930 | 2 | 1 | |
|
Ketchum City of Blaine County |
3,555 | 3 | 0 | |
|
Schweitzer Mountain Resort Bonner County |
3,301 | 4 | 0 | |
|
Coeur D'alene Casino Worley · County |
3,250 | 2 | 0 | |
|
Fort Hall Fort Hall · County |
2,850 | 8 | 2 | |
|
Priest River City of Bonner County |
2,173 | 1 | 0 | |
|
Idpr Farragut State Park Kootenai County |
2,000 | 1 | 0 | |
|
Itd Snake River View Rest Area Payette County |
1,500 | 2 | 0 | |
|
Fairview Water Dist Franklin County |
1,300 | 3 | 1 | |
|
Itd Huetter Poe Kootenai County |
1,200 | 2 | 1 | |
|
Plummer City of Benewah County |
1,034 | 4 | 0 | |
|
Bald Mountain Blaine County |
1,000 | 1 | 0 | |
|
Cottonwood Water Dept Idaho County |
977 | 2 | 0 | |
|
Challis City of Custer County |
900 | 5 | 1 | |
|
Lds Church 11 Labelle 3 Rigby 2,3 Rigby · Jefferson County |
884 | 1 | 0 | |
|
Lds Church Central Ave Ammon · Bonneville County |
851 | 1 | 0 | |
|
Troy City of Latah County |
850 | 4 | 0 | |
|
Greenleaf City of Canyon County |
846 | 1 | 0 | |
|
Lds Church Amity Locust Grove Meridian · Ada County |
840 | 2 | 0 | |
|
Lds Church Farmway Canyon County |
784 | 2 | 1 | |
|
Lds Building 30 Hwy 30 Caldwell · Canyon County |
775 | 3 | 1 | |
|
Snake River High School Bingham County |
745 | 2 | 1 | |
|
Clark Fork City of Bonner County |
730 | 2 | 0 | |
|
Lds Church Deer Flat Canyon County |
718 | 1 | 0 | |
|
3d Water Association Bonneville County |
680 | 1 | 0 | |
|
Lds Church Kimberly SC Twin Falls County |
659 | 1 | 0 | |
|
Melba City of Canyon County |
648 | 4 | 1 | |
|
Terreton Elementary High Als Schools Jefferson County |
640 | 1 | 0 | |
|
Valley School Jerome County |
640 | 3 | 2 | |
|
Lds Lansing Lane Middleton · Canyon County |
614 | 1 | 0 | |
|
Lookout Pass Ski Area Shoshone County |
600 | 1 | 0 | |
|
Worley City of Kootenai County |
591 | 3 | 2 | |
|
Kingston Water Dist 1 Shoshone County |
585 | 2 | 0 | |
|
Lds Church Shadow Mtn Ammon · Bonneville County |
581 | 1 | 0 | |
|
Lds Church Salem Madison County |
581 | 1 | 0 | |
|
West Bonner Water Dist 1 Bonner County |
545 | 2 | 0 | |
|
Craigmont City of Lewis County |
501 | 1 | 0 | |
|
Fast Stop INC Bannock County |
500 | 3 | 1 | |
|
Jackson Food Store 178 Canyon County |
500 | 3 | 1 | |
|
Noise Park Idaho Falls Bonneville County |
500 | 1 | 0 | |
|
Oakley Valley Water Corporation Cassia County |
500 | 5 | 2 | |
|
Pine Villa Park and Water Assn Kootenai County |
500 | 1 | 0 | |
|
Lds Church Plano Madison County |
479 | 1 | 0 | |
|
Lds Church Acequia #5042011 Minidoka County |
468 | 1 | 0 | |
|
Pierce City of Clearwater County |
467 | 4 | 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 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.