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 |
|---|---|---|---|---|
|
Unit 3 Water Assn Jerome County |
350 | 7 | 2 | |
|
Pepperwood Crossing/rocky Mnt Utilities Jefferson County |
336 | 1 | 1 | |
|
Albion City of Cassia County |
325 | 3 | 2 | |
|
Flamingo West Canyon County |
320 | 1 | 1 | |
|
Lansing Meadows Canyon County |
320 | 2 | 1 | |
|
Conkling Park Water Assn Kootenai County |
309 | 1 | 1 | |
|
Island Park Village Island Park · Fremont County |
305 | 2 | 1 | |
|
Mountain View Water and Road Assn Boise County |
305 | 3 | 2 | |
|
Basic American Food Shelley Bingham County |
300 | 1 | 1 | |
|
EL Rancho Heights Canyon County |
300 | 1 | 1 | |
|
Hibbard Elementary Madison County |
300 | 1 | 1 | |
|
Snake River Middle School Bingham County |
300 | 2 | 1 | |
|
Rimrock JR SR High School Owyhee County |
295 | 2 | 2 | |
|
Evergreen Mobile Park Canyon County |
284 | 5 | 2 | |
|
Idjc Juvenile Corrections Center Fremont County |
280 | 4 | 1 | |
|
Elkhorn Ranch Kootenai County |
278 | 1 | 1 | |
|
Castleford City of Twin Falls County |
275 | 1 | 1 | |
|
Royal Highland Water System Kootenai County |
275 | 2 | 1 | |
|
Paradise Estates Water Corp Ada County |
273 | 4 | 1 | |
|
North Tomer Butte W&s District Latah County |
259 | 3 | 1 | |
|
Bennington Water System Bear Lake County |
250 | 9 | 3 | |
|
Idaho Supreme Bingham County |
250 | 5 | 1 | |
|
Mellen Subd Water Dist Elmore County |
250 | 6 | 1 | |
|
Paul Housing Authority Minidoka County |
250 | 4 | 1 | |
|
Rolling Hills Estates Water Company Canyon County |
250 | 2 | 1 | |
|
Ohio Match Road Water Dist Kootenai County |
245 | 2 | 1 | |
|
Greenfield Water and Sewer Bingham County |
240 | 2 | 2 | |
|
Upper Twin Lakes Water Company INC Kootenai County |
227 | 2 | 1 | |
|
Indian Village Canyon County |
225 | 4 | 2 | |
|
YMCA Horsethief Camp Cascade · Valley County |
220 | 5 | 1 | |
|
Cti Food Service Canyon County |
216 | 3 | 1 | |
|
Karcher Ranchette Water Corp Canyon County |
213 | 5 | 2 | |
|
Somerset West Water Corp Canyon County |
203 | 1 | 1 | |
|
Syringa Water and Sewer Kootenai County |
203 | 2 | 1 | |
|
Garden Valley High School Boise County |
200 | 1 | 1 | |
|
Idahoan Foods Idaho Falls Plant Bonneville County |
200 | 2 | 2 | |
|
Onaway Water and Sewer Assn Latah County |
200 | 2 | 2 | |
|
Owyhee Village Subd Water Assn INC Canyon County |
200 | 2 | 1 | |
|
Riverview Villa Bingham County |
200 | 3 | 2 | |
|
Woodgrain Millwork Nampa · Canyon County |
200 | 1 | 1 | |
|
Calvary Chapel of Emmett Emmett · Gem County |
192 | 7 | 1 | |
|
Wada Farms Potatoes INC Bingham County |
190 | 4 | 3 | |
|
Leisure Acres Trailer Court Shoshone County |
180 | 6 | 1 | |
|
Panorama Hills Water Company Bonneville County |
175 | 1 | 1 | |
|
Timberstone HOA Canyon County |
170 | 2 | 1 | |
|
Elk River City of Clearwater County |
165 | 1 | 1 | |
|
Basic American Potato, Inc. Packers Bingham County |
160 | 3 | 1 | |
|
Lakeview Hills Water Users Association Canyon County |
160 | 1 | 1 | |
|
Camelot Water Assn INC Canyon County |
157 | 2 | 2 | |
|
Clark Theurer Water Assn Canyon County |
155 | 1 | 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.