E. coli (Escherichia coli) violations in Idaho
132 active public water systems in Idaho had a E. coli (Escherichia coli) violation in the past three years, 98 of them in the latest quarter of EPA's data. What E. coli (Escherichia coli) is and why it matters.
Systems with a E. coli (Escherichia coli) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mountain Home, City of Elmore County |
14,651 | 5 | 2 | |
|
Rupert City of Minidoka County |
5,796 | 2 | 1 | |
|
Idoc Sbx Complex Ada County |
3,309 | 2 | 2 | |
|
Hagerman City of Gooding County |
988 | 1 | 1 | |
|
Hazelton City of Jerome County |
899 | 1 | 1 | |
|
Oakley City of Cassia County |
821 | 6 | 4 | |
|
Lds Building 30 Hwy 30 Caldwell · Canyon County |
775 | 3 | 1 | |
|
Harrison City of Kootenai County |
456 | 1 | 1 | |
|
Grand View, City of Owyhee County |
452 | 4 | 2 | |
|
Clifton City of Franklin County |
413 | 5 | 2 | |
|
Grace Church Minidoka County |
400 | 4 | 1 | |
|
Lds Church View Cassia County |
383 | 2 | 1 | |
|
Lds Church Letha Gem County |
369 | 1 | 1 | |
|
Parker City of Fremont County |
322 | 3 | 2 | |
|
Shotgun North Fremont County |
285 | 4 | 2 | |
|
Greenfield Water and Sewer Bingham County |
240 | 2 | 2 | |
|
Cascade Lake 4h Camp Valley County |
200 | 2 | 1 | |
|
Bsa Krupp Scout Hollow Jefferson County |
200 | 3 | 2 | |
|
Onaway Water and Sewer Assn Latah County |
200 | 2 | 2 | |
|
Duquette Pines Homeowners Association Boise County |
163 | 1 | 1 | |
|
Country Haven Utilities Bingham County |
150 | 2 | 1 | |
|
North Rim Fairways Jerome County |
150 | 3 | 1 | |
|
Lds Dingle Ward Church Bear Lake County |
133 | 3 | 2 | |
|
Clear Creek Station Valley County |
130 | 4 | 2 | |
|
White Bird City of Idaho County |
125 | 6 | 1 | |
|
Hayden Orchards Water System Kootenai County |
122 | 1 | 1 | |
|
Watco Company Cassia County |
120 | 2 | 2 | |
|
View Water Development Company Cassia County |
112 | 4 | 2 | |
|
Boise Stage Stop Ada County |
100 | 3 | 2 | |
|
Hitt the Road Bannock County |
100 | 4 | 2 | |
|
Luther Heights Bible Camp Blaine County |
100 | 2 | 0 | |
|
North Gate Inn Custer County |
100 | 4 | 2 | |
|
Rock Creek General Store Twin Falls County |
100 | 4 | 1 | |
|
Thousand Springs Resort Twin Falls County |
100 | 3 | 1 | |
|
Trouthunter Resort, LLC Island Park · Fremont County |
100 | 2 | 1 | |
|
Wolf Lodge Campground Kootenai County |
100 | 3 | 1 | |
|
Roswell Water Users Coop Company Canyon County |
90 | 3 | 3 | |
|
King Hill Domestic Water and Sewer Elmore County |
87 | 8 | 1 | |
|
Usfs Laird Park Campground Latah County |
86 | 1 | 1 | |
|
Lava Campground Bannock County |
80 | 2 | 1 | |
|
Black Rock Marina INC Kootenai County |
75 | 2 | 1 | |
|
Oakdell Farms LLC Franklin County |
75 | 1 | 1 | |
|
Tamarack Family Dining Latah County |
75 | 1 | 1 | |
|
Usfs Pittsburg Landing Campground Idaho County |
75 | 3 | 1 | |
|
Usfs Fenn Ranger Station and Ycc Camp Idaho County |
74 | 1 | 0 | |
|
Loma Linda Water Corp Payette County |
70 | 3 | 2 | |
|
Aspen Creek Water Company Bear Lake County |
64 | 1 | 1 | |
|
Cedar Point Subdivision Bingham County |
63 | 7 | 3 | |
|
Drovers Run at Jacques Spur Nez Perce County |
60 | 1 | 1 | |
|
Usfs Avery Ranger Station Shoshone County |
60 | 2 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved E. coli (Escherichia coli), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not E. coli (Escherichia coli) 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.