Tapcensus

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.

Health effects: Most E. coli strains cause diarrheal illness. Some strains (e.g., O157:H7) produce toxins causing severe bloody diarrhea, hemolytic uremic syndrome (HUS — a form of kidney failure), and death — especially in children under 5 and the elderly. Even non-pathogenic strains in drinking water indicate that disease-causing organisms may also be present.

Systems with a E. coli (Escherichia coli) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Simplot Company Pocatello
Power County
370 1 0
Bennington Water System
Bear Lake County
250 9 3
Shotgun Cherokee Subd 5
Fremont County
245 5 2
Karcher Ranchette Water Corp
Canyon County
213 5 2
Aspen Ridge Subd
Fremont County
204 6 1
Pomerelle Ski Resort
Cassia County
200 1 0
Goose Bay Estates
Fremont County
184 4 3
Banida Water and Sewer Dist
Franklin County
180 8 3
Cub River Acres
Franklin County
180 4 1
Jeff Hills Golf and Recreation
Jefferson County
150 1 0
Lds Riverdale Church
Franklin · Franklin County
150 3 1
Cedar Springs Community Water
Bonner County
130 7 5
Ohio Match Estates
Kootenai County
118 2 0
Valley View Subdivision
Fremont County
90 6 3
Hope House (owyhee)
Owyhee County
78 5 2
Nps Minidoka Historical Site
Jerome County
75 2 0
Shotgun Kickapoo Subd 6
Fremont County
65 3 2
Nur Water Assn
Idaho Falls · Bonneville County
60 3 0
Usfs Upper Mesa Falls Campground
Fremont County
60 1 0
Zoroco Packaging INC
Canyon County
60 2 1
Teton House
Jefferson County
56 3 0
Bethel Baptist Church
Rigby · Jefferson County
50 2 0
Warren Water System
Bonner County
45 3 3
Usfs Palisades Creek Campground
Bonneville County
40 3 0
Murray Water Assn INC
Shoshone County
35 5 0
Bear River Hot Springs/riverdale Resort
Franklin County
26 3 1
Calvary Chapel of Twin Falls
Twin Falls County
25 2 1
Eagle View Village
Bonner County
25 2 0
Hoodoo Creek Cafe
Bonner County
25 3 0
North Fork Club
Fremont County
25 2 0
Sheep Creek Rest Area Itd
Idaho County
25 2 0
Train Station Pizza
Twin Falls County
25 4 0
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.