All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
A & M Livestock Auction Kings County |
200 | 0 | 0 | |
|
Adair Viansa, LLC Sonoma County |
200 | 0 | 0 | |
|
Alexander Valley Union School District Sonoma County |
200 | 0 | 0 | |
|
Alpine Springs County Water District Placer County |
200 | 0 | 0 | |
|
Americas Best Value Inn Yolo County |
200 | 0 | 0 | |
|
Baldwin Beach El Dorado County |
200 | 0 | 0 | |
|
Banta Elementary School San Joaquin County |
200 | 0 | 0 | |
|
Bassett's Station Sierra County |
200 | 0 | 0 | |
|
Bear River Camp--South Shore Amador County |
200 | 2 | 0 | |
|
Bearskin Meadow Diabetic Youth Camp Fresno County |
200 | 0 | 0 | |
|
Bethel Island Estates Contra Costa County |
200 | 0 | 0 | |
|
Black Oak Facility Mendocino County |
200 | 0 | 0 | |
|
Blairsden Water Users Assn Plumas County |
200 | 1 | 1 | |
|
Bluff Pointe Golf Course and Learning CE Fresno County |
200 | 0 | 0 | |
|
Bucks Lakeshore Resort Plumas County |
200 | 1 | 0 | |
|
Bluetriton Brands Morongo County |
200 | 0 | 0 | |
|
Califia Farms Water System Kern County |
200 | 0 | 0 | |
|
California Portland Cement Kern County |
200 | 1 | 0 | |
|
Caltrans-L.t. Davis Reststop Plumas County |
200 | 0 | 0 | |
|
Calvin Crest Conference Center Madera County |
200 | 2 | 0 | |
|
Camp Osito Rancho San Bernardino County |
200 | 1 | 0 | |
|
Camp Shelly El Dorado County |
200 | 0 | 0 | |
|
Casa del Rio Fresno County |
200 | 0 | 0 | |
|
Castlewood Mobile Home Park Yuba County |
200 | 1 | 0 | |
|
Chimney Tree Humboldt County |
200 | 0 | 0 | |
|
China Peak Mountain Resort Fresno County |
200 | 0 | 0 | |
|
City of 10,000 Buddhas Ukiah · Mendocino County |
200 | 1 | 1 | |
|
City of San Diego, Camp Morena San Diego County |
200 | 0 | 0 | |
|
Community of the Great Commission Placer County |
200 | 2 | 0 | |
|
Country Junction Deli Contra Costa County |
200 | 0 | 0 | |
|
Daley Ranch San Diego County |
200 | 0 | 0 | |
|
Domaine Chandon Napa County |
200 | 2 | 1 | |
|
EL Adobe Poa, Inc. Kern County |
200 | 2 | 1 | |
|
Emerald Forest Humboldt County |
200 | 1 | 0 | |
|
Eusd-Van Allen School San Joaquin County |
200 | 0 | 0 | |
|
Exeter Kingdom Hall Tulare County |
200 | 0 | 0 | |
|
Famoso Inn Water System Kern County |
200 | 0 | 0 | |
|
Forest Lawn Scout Reservation San Bernardino County |
200 | 2 | 0 | |
|
Founders Grove-State Parks Humboldt County |
200 | 0 | 0 | |
|
Fresno South Jehovah Witnesses Fresno County |
200 | 0 | 0 | |
|
Geyserville Newtech Academy School Sonoma County |
200 | 1 | 1 | |
|
Gordon Acres Water CO San Bernardino County |
200 | 6 | 4 | |
|
Griffin Food and Gas Tulare County |
200 | 1 | 0 | |
|
Harmony Farms Event Center Riverside County |
200 | 0 | 0 | |
|
High Sierra Water Company Inyo County |
200 | 0 | 0 | |
|
Hodges Reservoir Recreation Area San Diego County |
200 | 0 | 0 | |
|
Holiday Mobile Village Sacramento County |
200 | 0 | 0 | |
|
Holland Park West Fresno County |
200 | 2 | 0 | |
|
Ice House Campground El Dorado County |
200 | 1 | 0 | |
|
Idyllwild Brew Pub Riverside County |
200 | 0 | 0 |
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.