Consumer Confidence Rule (CCR) violations in California
70 active public water systems in California had a Consumer Confidence Rule (CCR) violation in the past three years, 70 of them in the latest quarter of EPA's data. What Consumer Confidence Rule (CCR) is and why it matters.
Systems with a Consumer Confidence Rule (CCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sequoia Water Assoc Sacramento County |
54 | 2 | 2 | |
|
Bracken Brae Country Club Santa Cruz County |
52 | 3 | 2 | |
|
Inyo County Pwd Laws Town Inyo County |
50 | 3 | 3 | |
|
Meadowbrook Oaks Butte County |
50 | 4 | 2 | |
|
Primm Valley Golf Club San Bernardino County |
50 | 4 | 2 | |
|
Prather Water District Fresno County |
49 | 1 | 1 | |
|
Sierra Vista Association Tulare County |
43 | 3 | 1 | |
|
Caltrans Visalia Maintenance Station Tulare County |
41 | 2 | 2 | |
|
East Three Rivers Mutual Water Corp Tulare County |
40 | 3 | 2 | |
|
Big Creek Community Serv Dist Fresno County |
38 | 2 | 2 | |
|
Kings River Point Fresno County |
36 | 2 | 2 | |
|
Oku Incorporated San Mateo County |
35 | 3 | 2 | |
|
Feather River School Butte County |
34 | 2 | 2 | |
|
Larsen Ranch 39-40/water System San Joaquin County |
30 | 4 | 3 | |
|
Moss Mobile Manor San Bernardino County |
26 | 1 | 1 | |
|
Wheatland Park Estates Yuba County |
26 | 1 | 1 | |
|
Monrovia Nursery Venice Hills Tulare County |
25 | 2 | 2 | |
|
Tract 1199 Water System Fresno County |
25 | 3 | 2 | |
|
Wagon Train Road LLC San Bernardino County |
25 | 1 | 1 | |
|
Robinson's Corner MHP Butte County |
20 | 8 | 2 |
About this data
A system is counted once if any of its violations in the past three years involved Consumer Confidence Rule (CCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Consumer Confidence Rule (CCR) 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.