All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Caribou Crossroads Plumas County |
30 | 0 | 0 | |
|
Cassin Ranch (driscoll's) Santa Cruz County |
30 | 0 | 0 | |
|
Cerro Alto Campground San Luis Obispo County |
30 | 1 | 0 | |
|
Cesar Arevalo Rentals Kings County |
30 | 0 | 0 | |
|
Channel Islands National Park Ventura County |
30 | 0 | 0 | |
|
Chooljian Bros Packing CO Fresno County |
30 | 0 | 0 | |
|
City of Merced Wwtp Merced · Merced County |
30 | 0 | 0 | |
|
City of Orland, Haigh Field Park Glenn County |
30 | 0 | 0 | |
|
Cliff's Marina Sacramento County |
30 | 0 | 0 | |
|
Clingans Junction Cabins and Coffee Fresno County |
30 | 0 | 0 | |
|
Coarsegold Inn Madera County |
30 | 2 | 0 | |
|
Cohasset Industrial Park Butte County |
30 | 0 | 0 | |
|
Covelo Mobile Home Park Mendocino County |
30 | 0 | 0 | |
|
Cowpunchers Fountain Springs Tulare County |
30 | 0 | 0 | |
|
Crew Wine Company Yolo County |
30 | 3 | 1 | |
|
Crivelli's Water System Del Norte County |
30 | 0 | 0 | |
|
Crowley Lake Campland Mono County |
30 | 0 | 0 | |
|
Csp-Russian Gulch State Park Mendocino County |
30 | 0 | 0 | |
|
Dillon Creek Campground-Srnf Siskiyou County |
30 | 0 | 0 | |
|
Discovery Park [sws] Sacramento County |
30 | 0 | 0 | |
|
Doyle Payless Shell Lassen County |
30 | 1 | 0 | |
|
Dream Catcher Campground Plumas County |
30 | 1 | 0 | |
|
Dru Barner Campground El Dorado County |
30 | 0 | 0 | |
|
Duner's Diner Imperial County |
30 | 0 | 0 | |
|
Desert Rose MHP County |
30 | 1 | 0 | |
|
Edna Valley Vineyards San Luis Obispo County |
30 | 0 | 0 | |
|
Evergreen Lodge Tuolumne County |
30 | 2 | 0 | |
|
Family Tree Farms Tulare County |
30 | 1 | 0 | |
|
Far Niente Winery Napa County |
30 | 0 | 0 | |
|
Fat Pilgrim General Store Sonoma · Sonoma County |
30 | 0 | 0 | |
|
Freeport Ventures Sacramento County |
30 | 0 | 0 | |
|
Garland Park Monterey County |
30 | 0 | 0 | |
|
Gold Lake Lodge Plumas County |
30 | 0 | 0 | |
|
Golden State Water Company South Shore Lake County |
30 | 2 | 1 | |
|
Grangeville Market Kings County |
30 | 0 | 0 | |
|
Graton Commerce Center Sonoma County |
30 | 0 | 0 | |
|
Green Valley Floral-Potter RD WS Monterey County |
30 | 0 | 0 | |
|
Grumpy Bears Retreat Tulare County |
30 | 1 | 0 | |
|
Harmony Ridge Lodge Nevada County |
30 | 0 | 0 | |
|
Hawkes Winery Sonoma County |
30 | 0 | 0 | |
|
Heartwood Institute Humboldt County |
30 | 0 | 0 | |
|
Hhw&p-Early Intake Cpd-Sfpuc San Francisco County |
30 | 0 | 0 | |
|
Higuera Apartments San Luis Obispo County |
30 | 3 | 2 | |
|
Hitching Post Saloon Madera County |
30 | 0 | 0 | |
|
Holdgrafer & Associates San Luis Obispo County |
30 | 0 | 0 | |
|
Huebert Farms Fresno County |
30 | 1 | 0 | |
|
Huntington Lake Resort Fresno County |
30 | 2 | 0 | |
|
Huppe Moore Landscape Placer County |
30 | 1 | 0 | |
|
Iid North End Consolidation Imperial County |
30 | 2 | 1 | |
|
Jean Harvie School [sws] Sacramento County |
30 | 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.