All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Virginia Dare Winery Sonoma County |
51 | 1 | 1 | |
|
Virginia Lakes Mutual Water Co. Mono County |
51 | 0 | 0 | |
|
Yosemite Lakes Community Church Madera County |
51 | 1 | 0 | |
|
Yosemite Nps-Hodgdon Meadow Tuolumne County |
51 | 2 | 1 | |
|
15th Avenue Kings County |
50 | 0 | 0 | |
|
Acton Four Square Church Los Angeles County |
50 | 0 | 0 | |
|
Adobe Christian Church Sonoma County |
50 | 0 | 0 | |
|
Agape Mutual Water System Kern County |
50 | 0 | 0 | |
|
Agua Dulce Women's Club Los Angeles County |
50 | 0 | 0 | |
|
Alcouffe Community Center Yuba County |
50 | 0 | 0 | |
|
Antelope Oaks Water System Placer County |
50 | 0 | 0 | |
|
Apple Valley Faith Center San Bernardino County |
50 | 1 | 0 | |
|
Aptco LLC Tulare County |
50 | 0 | 0 | |
|
Azalea Trails Girl Scouts Camp Riverside County |
50 | 0 | 0 | |
|
Angelique Maelee Properties County |
50 | 8 | 1 | |
|
B&g Mobile Home Park LLC WS San Joaquin County |
50 | 0 | 0 | |
|
Bartholomew Foundation Sonoma County |
50 | 0 | 0 | |
|
Bass Fork Star Madera County |
50 | 1 | 0 | |
|
Bay Valley Estates PWS San Joaquin County |
50 | 0 | 0 | |
|
Belden Town & Resort Plumas County |
50 | 0 | 0 | |
|
Blackhawk Center Water System Madera County |
50 | 0 | 0 | |
|
Blood Gulch Amador County |
50 | 0 | 0 | |
|
Blue Heron Restaurant Sonoma County |
50 | 1 | 1 | |
|
Bonita Five Inc. Madera County |
50 | 0 | 0 | |
|
Boulevard KOA Drinking Water San Diego County |
50 | 0 | 0 | |
|
Brandt Cattle Imperial County |
50 | 3 | 1 | |
|
Bridgeville Elem. School Humboldt County |
50 | 2 | 1 | |
|
Browns Valley One Stop Yuba County |
50 | 0 | 0 | |
|
Burney Falls Resort Shasta County |
50 | 1 | 0 | |
|
Byron United Methodist Contra Costa County |
50 | 0 | 0 | |
|
Big Bend Big Bend Rv Park · County |
50 | 4 | 2 | |
|
California Hot Springs Water Company Tulare County |
50 | 3 | 0 | |
|
California Olive Ranch Glenn County |
50 | 0 | 0 | |
|
Calva Products CO INC San Joaquin County |
50 | 0 | 0 | |
|
Cameron Corners San Diego County |
50 | 0 | 0 | |
|
Camp San Joaquin Tulare County |
50 | 0 | 0 | |
|
Campo Group LLC San Diego County |
50 | 0 | 0 | |
|
Capital Lumber Company Sonoma County |
50 | 0 | 0 | |
|
Carmelo Industrial Park San Joaquin County |
50 | 1 | 1 | |
|
Carneros Warehousing Sonoma County |
50 | 0 | 0 | |
|
Cascadel Mutual Water System Madera County |
50 | 1 | 0 | |
|
Cast Estate Vineyards & Cellars Sonoma County |
50 | 0 | 0 | |
|
Casterlin School Humboldt County |
50 | 2 | 1 | |
|
Castle Mountain Mine San Bernardino County |
50 | 3 | 1 | |
|
Century Mobile Home Park San Joaquin County |
50 | 1 | 0 | |
|
Chalet View Lodge Plumas County |
50 | 0 | 0 | |
|
Chaos Vineyards, Llc. Sonoma County |
50 | 0 | 0 | |
|
Church of the Good Shepherd WS Monterey County |
50 | 0 | 0 | |
|
Cienega Winery San Benito County |
50 | 0 | 0 | |
|
Cinnabar Hills Golf Club Santa Clara County |
50 | 1 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.