Lead and Copper Rule Revisions (LCRR) violations in California
842 active public water systems in California had a Lead and Copper Rule Revisions (LCRR) violation in the past three years, 844 of them in the latest quarter of EPA's data. What Lead and Copper Rule Revisions (LCRR) is and why it matters.
Systems with a Lead and Copper Rule Revisions (LCRR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Feather River RV & MHP Plumas County |
53 | 1 | 1 | |
|
Golden Empire Concrete Company Kern County |
53 | 1 | 1 | |
|
Green Acres Mutual Water Santa Clara County |
53 | 1 | 1 | |
|
Little Avenue Water System Tehama County |
53 | 2 | 1 | |
|
Meadow Edge MHP Plumas County |
53 | 1 | 1 | |
|
Sullivan Mutual Water Santa Clara County |
53 | 2 | 1 | |
|
Bracken Brae Country Club Santa Cruz County |
52 | 3 | 2 | |
|
Paicines Ranch San Benito County |
52 | 2 | 1 | |
|
Francis Property Management Butte County |
51 | 2 | 1 | |
|
Hellwig Products Company INC Tulare County |
51 | 1 | 1 | |
|
Virginia Dare Winery Sonoma County |
51 | 1 | 1 | |
|
Brandt Cattle Imperial County |
50 | 3 | 1 | |
|
Bridgeville Elem. School Humboldt County |
50 | 2 | 1 | |
|
Carmelo Industrial Park San Joaquin County |
50 | 1 | 1 | |
|
Casterlin School Humboldt County |
50 | 2 | 1 | |
|
Cvusd Facilities/m&o Riverside County |
50 | 1 | 1 | |
|
Eastern Sierra Regional Airport Inyo County |
50 | 1 | 1 | |
|
EL Mirage School San Bernardino County |
50 | 1 | 1 | |
|
Esterina Properties Ventura County |
50 | 1 | 1 | |
|
Hunter's Fishing Resort Tehama County |
50 | 1 | 1 | |
|
Inyo County Pwd Laws Town Inyo County |
50 | 3 | 3 | |
|
Kiefer Landfill [sws] Sacramento County |
50 | 1 | 1 | |
|
Kitayama Brothers Watsonville · Santa Cruz County |
50 | 1 | 1 | |
|
Laura Chenel's Chevre Inc. Sonoma County |
50 | 1 | 1 | |
|
Madera Irrigation District Madera County |
50 | 4 | 2 | |
|
Mattole Elementary School Humboldt County |
50 | 2 | 1 | |
|
Meadowbrook Oaks Butte County |
50 | 4 | 2 | |
|
Norris Canyon Property Owners Assn Alameda County |
50 | 1 | 1 | |
|
Pesante RD WS #06 Monterey County |
50 | 1 | 1 | |
|
S & W Warehousing, LLC Sonoma County |
50 | 1 | 1 | |
|
Santa Cruz County Fairgrounds Santa Cruz County |
50 | 1 | 0 | |
|
Skylawn Memorial Park (skylawn Inc) San Mateo County |
50 | 1 | 1 | |
|
South Shore Recreation Area El Dorado County |
50 | 2 | 1 | |
|
Tavis Corporation Mariposa County |
50 | 4 | 1 | |
|
Tennant C.s.d. Siskiyou County |
50 | 1 | 1 | |
|
Tessenderlo Kerley INC Fresno County |
50 | 1 | 1 | |
|
Twin Creeks Mobile and RV Village Lake County |
50 | 1 | 1 | |
|
Caltrans Mountain Pass Jpoe Cvef San Bernardino County |
49 | 3 | 2 | |
|
Paradise RD WS #21 Monterey County |
48 | 1 | 1 | |
|
R a Farms Santa Cruz County |
48 | 1 | 1 | |
|
Willow Creek Christian School Glenn County |
47 | 1 | 1 | |
|
Coleman National Fish Hatchery Shasta County |
46 | 1 | 1 | |
|
East Wilson Road Water Company Kern County |
46 | 2 | 1 | |
|
Foothill WA Monterey County |
46 | 1 | 1 | |
|
Aborn Heights Water Mutual Association Santa Clara County |
45 | 1 | 1 | |
|
Allied Waste of Imperial Valley Imperial County |
45 | 2 | 1 | |
|
Clos Pegase Winery Napa County |
45 | 1 | 1 | |
|
McLaughlin Waste Equipment INC San Joaquin County |
45 | 1 | 1 | |
|
Mountain Village Homeowner's Assoc Butte County |
45 | 2 | 1 | |
|
Sunny Acres Mws Monterey County |
45 | 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 Revisions (LCRR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Lead and Copper Rule Revisions (LCRR) 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 California 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.