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.
Systems with a Lead and Copper Rule (LCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Kidd Island Bay Water Users Kootenai County |
153 | 2 | 1 | |
|
Apex Living Community Latah County |
150 | 2 | 2 | |
|
Basic American Foods Rexburg Madison County |
150 | 1 | 1 | |
|
Drake Subd Canyon County |
150 | 9 | 3 | |
|
Rock Ledge Estates Twin Falls County |
150 | 1 | 1 | |
|
Sunset Trailer Ranch Bonneville County |
150 | 2 | 1 | |
|
Telford Park Idaho Falls · Bonneville County |
150 | 3 | 1 | |
|
Tensed City of Benewah County |
146 | 5 | 1 | |
|
D and M Water Assn Bannock County |
142 | 1 | 1 | |
|
Leadore School Lemhi County |
140 | 3 | 1 | |
|
Mores Creek Rim Ranch Water Dist Boise County |
140 | 1 | 1 | |
|
OK Water Assn Canyon County |
140 | 2 | 1 | |
|
Rio Vista Water Company 3 Canyon County |
140 | 1 | 1 | |
|
Ferdinand City of Idaho County |
133 | 2 | 1 | |
|
Cedar Springs Community Water Bonner County |
130 | 7 | 5 | |
|
Appaloosa Community Latah County |
129 | 1 | 1 | |
|
The Centre at Rainey Creek Bonneville County |
129 | 2 | 1 | |
|
Lighthouse Montessori School Ammon · Bonneville County |
125 | 3 | 2 | |
|
Emida Water and Sewer Association Benewah County |
120 | 3 | 2 | |
|
Perpetua Resources Valley County |
120 | 6 | 1 | |
|
Preston Eastside Water CO Franklin County |
120 | 10 | 3 | |
|
Watco Company Cassia County |
120 | 2 | 2 | |
|
Smiley Creek Water Users Assn INC Blaine County |
117 | 6 | 2 | |
|
Prairie Schooner Estates Kootenai County |
115 | 1 | 1 | |
|
View Water Development Company Cassia County |
112 | 4 | 2 | |
|
Apache Heights Subdivision (2) Canyon County |
110 | 3 | 1 | |
|
Pioneer Acres Bingham County |
110 | 1 | 1 | |
|
Countryside Village Twin Falls County |
108 | 4 | 2 | |
|
Waterford Estates Kootenai County |
108 | 1 | 1 | |
|
Sky Ranch Estates Canyon County |
104 | 1 | 1 | |
|
Gpod of Idaho Bingham County |
100 | 3 | 1 | |
|
Karcher Acres Subd Canyon County |
100 | 1 | 1 | |
|
Lakeview Water Company 1 Canyon County |
100 | 2 | 2 | |
|
Pleasant View Manor Canyon County |
100 | 5 | 1 | |
|
Simplot Livestock Company Grandview Elmore County |
100 | 5 | 2 | |
|
Sunnyside Park Utilities INC Idaho Falls · Bonneville County |
100 | 2 | 1 | |
|
Canyon School Dist 391 Kootenai County |
95 | 3 | 2 | |
|
East Lizard Butte Water Corp Canyon County |
95 | 2 | 1 | |
|
Idaho Youth Ranch Hands of Promise Canyon County |
95 | 2 | 1 | |
|
Sun Glo of Idaho North Madison County |
92 | 1 | 1 | |
|
Atlanta Water Assn Elmore County |
91 | 1 | 1 | |
|
Splendid Acres Water Assn Elmore County |
91 | 3 | 1 | |
|
Evolution Plaza Idaho Falls · Bonneville County |
90 | 2 | 2 | |
|
Mart Produce Minidoka County |
90 | 2 | 1 | |
|
Riverside Estates Bingham County |
90 | 4 | 3 | |
|
Roswell Water Users Coop Company Canyon County |
90 | 3 | 3 | |
|
Trout Creek Culinary Water INC Caribou County |
90 | 2 | 2 | |
|
Valley View Subdivision Fremont County |
90 | 6 | 3 | |
|
Kimpton Acres Third Subd Canyon County |
88 | 3 | 2 | |
|
Parkwood Acres Water Company Jefferson County |
88 | 2 | 1 |
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.