Tapcensus

Lead and Copper Rule (LCR) violations in Idaho

229 active public water systems in Idaho had a Lead and Copper Rule (LCR) violation in the past three years, 229 of them in the latest quarter of EPA's data. What Lead and Copper Rule (LCR) is and why it matters.

Health effects: Lead: no safe level for children. Causes irreversible neurological damage, impaired cognitive development, behavioral problems, and reduced IQ in children under 6. In adults: hypertension, cardiovascular disease, kidney damage. Copper: acute gastrointestinal distress at high levels; liver/kidney damage at very high chronic levels.

Systems with a Lead and Copper Rule (LCR) violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Westwood Water Assn
Bonneville County
41 1 1
Mountain View Court
St. Anthony · Fremont County
40 3 3
Sunnyside Park
Clearwater County
40 7 2
Wildrose Estates
Canyon County
40 1 1
Deruyters Housing
Owyhee County
36 2 1
Idaho Timber Corp
Washington County
36 1 1
Beranna
Canyon County
35 1 1
DJ Park Well
Idaho Falls · Bonneville County
35 1 1
Stone Elementary School Dist 351
Oneida County
35 2 2
Syringa Park Subd
Rexburg · Madison County
35 1 1
Idfg MV Regional Office
Jerome County
33 2 2
Christinas Daycare
Jerome County
32 3 1
Country Living Center
Rigby · Jefferson County
30 2 1
Degroot
Canyon County
30 2 1
Dell Subd Water Assn
Ada County
30 3 2
Grove Creek Subd Water Assn
Teton County
30 1 1
Jefferson Alternative School
Jefferson County
30 2 2
Riley Trailer Park
Ada County
30 1 1
Sunridge
Canyon County
30 1 1
Riverview Acres 2
Bingham County
29 4 3
Jackalope Assn
Teton County
28 3 1
Mink Creek Mountain Estates
Bannock County
27 3 2
Moose Mountain
Bannock County
27 2 1
R and V Mobile Home Park
Gem County
27 2 2
Goose Creek Rentals
Adams County
26 4 1
Afc Finishing Systems
Washington County
25 2 1
Evergreen Acres Subd
Bannock County
25 2 2
School District 151 Central Office
Burley · Cassia County
25 3 1
Simplot Research Center
Power County
25 2 2
About this data

A system is counted once if any of its violations in the past three years involved Lead and Copper Rule (LCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule (LCR) 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.