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 still unresolved. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Preston City of Franklin County |
5,591 | 5 | 1 | |
|
Idpr Lucky Peak SP Discovery Unit Ada County |
1,000 | 4 | 0 | |
|
Kootenai County Water Dist 1 Kootenai County |
843 | 6 | 3 | |
|
Idpr Lucky Peak SP Sandy Point Ada County |
777 | 2 | 1 | |
|
Blm Joe T Fallini Custer County |
540 | 2 | 1 | |
|
Rustic Acres Mobile Home Park Ada County |
540 | 3 | 2 | |
|
Fairfield City of Camas County |
441 | 3 | 3 | |
|
Grace Church Minidoka County |
400 | 4 | 1 | |
|
Arimo City of Bannock County |
368 | 2 | 2 | |
|
Cambridge City of Washington County |
335 | 4 | 0 | |
|
Bear Lake RV Park Bear Lake County |
325 | 3 | 2 | |
|
Elk City Water and Sewer Assn Idaho County |
320 | 5 | 0 | |
|
Mountain View Water and Road Assn Boise County |
305 | 3 | 2 | |
|
Lds Camp Cumorah #5306108 Shelley · Bingham County |
300 | 2 | 1 | |
|
Liberty Estates Madison County |
300 | 1 | 0 | |
|
Parma Motor VU Canyon County |
300 | 2 | 1 | |
|
Lds South Maple Grove Stake Center Boise · Ada County |
300 | 3 | 1 | |
|
Sportsmans Park Bingham County Bingham County |
300 | 2 | 1 | |
|
Zims Hot Spring Adams County |
300 | 1 | 0 | |
|
Jerome Country Club Jerome County |
225 | 3 | 1 | |
|
Aqua Water System Kootenai County |
220 | 2 | 1 | |
|
Hollister City of Twin Falls County |
220 | 4 | 0 | |
|
YMCA Horsethief Camp Cascade · Valley County |
220 | 5 | 1 | |
|
Rockford Elementary Bingham County |
217 | 3 | 2 | |
|
Givens Hot Springs Owyhee County |
207 | 3 | 0 | |
|
Lds Lemhi (salmon) Chapel Salmon · Lemhi County |
203 | 1 | 0 | |
|
Bsa Krupp Scout Hollow Jefferson County |
200 | 3 | 2 | |
|
Shortstop INC Canyon County |
200 | 2 | 0 | |
|
Calvary Chapel of Emmett Emmett · Gem County |
192 | 7 | 1 | |
|
Wada Farms Potatoes INC Bingham County |
190 | 4 | 3 | |
|
Goose Bay Estates Fremont County |
184 | 4 | 3 | |
|
Banida Water and Sewer Dist Franklin County |
180 | 8 | 3 | |
|
Caldwell Christian Church Canyon County |
175 | 2 | 0 | |
|
Community Christian Church Twin Falls County |
150 | 2 | 0 | |
|
Gas and Scrub Bingham County |
150 | 2 | 1 | |
|
Kelly Canyon Winter Park LLC Jefferson County |
150 | 1 | 0 | |
|
Stanley Kasino Club Stanley · Custer County |
150 | 3 | 1 | |
|
Harmon Property Owners Association Kootenai County |
148 | 1 | 0 | |
|
Leadore School Lemhi County |
140 | 3 | 1 | |
|
Valley HI Estates Boise County |
140 | 1 | 0 | |
|
Warm Lake Bible Camp Valley County |
140 | 3 | 1 | |
|
Country Club Estates Jerome County |
137 | 2 | 1 | |
|
Evans Water Corp Ada County |
137 | 1 | 0 | |
|
Cedar Springs Community Water Bonner County |
130 | 7 | 5 | |
|
Life Church Hailey · Blaine County |
125 | 1 | 0 | |
|
Minidoka City of Minidoka County |
120 | 4 | 0 | |
|
The Village at North Fork Lemhi County |
108 | 1 | 0 | |
|
Cocolalla Bible Camp Bonner County |
100 | 3 | 1 | |
|
Feist Creek Resort Boundary County |
100 | 2 | 0 | |
|
Lds Garden Valley Meeting House Boise County |
100 | 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. Retrieved from ECHO on Oct 11, 2026.