All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Oregon House Grocery Yuba County |
40 | 0 | 0 | |
|
Overshine Wine Company Sonoma County |
40 | 0 | 0 | |
|
Pancake Bay Mutual Water CO Plumas County |
40 | 0 | 0 | |
|
Pg&e McCumber Campground Shasta County |
40 | 0 | 0 | |
|
Pg&e Helms Support Facility Fresno County |
40 | 0 | 0 | |
|
Pg&e Oakhurst Service Center Madera County |
40 | 1 | 0 | |
|
Pg&e: Philbrook Dam Butte County |
40 | 0 | 0 | |
|
Pine Hill Egg Ranch San Diego County |
40 | 3 | 1 | |
|
Pnf Chilcoot CG Plumas County |
40 | 1 | 0 | |
|
Pnf Cottonwood CG / Frenchman Admin Plumas County |
40 | 1 | 0 | |
|
Pnf Frenchman & Spring Creek Cgs Plumas County |
40 | 1 | 0 | |
|
Pnf Lakes Basin CG Plumas County |
40 | 0 | 0 | |
|
Pnf Long Point CG Plumas County |
40 | 1 | 0 | |
|
Pnf North Fork / Queen Lily Cgs Plumas County |
40 | 0 | 0 | |
|
Power Systems Headquarters Ycwa Yuba County |
40 | 0 | 0 | |
|
Puerta la Cruz CC #14 San Diego County |
40 | 0 | 0 | |
|
Quesadilla Gorilla Tulare County |
40 | 0 | 0 | |
|
Rancho la Jota Napa County |
40 | 0 | 0 | |
|
Ray Water Company Santa Barbara County |
40 | 1 | 1 | |
|
Richmond Hunting Club-Maxwell Colusa County |
40 | 0 | 0 | |
|
Riverland Resort Tulare County |
40 | 2 | 1 | |
|
Riverview Farms WS Monterey County |
40 | 0 | 0 | |
|
Riverview Homeowners Association Kern County |
40 | 0 | 0 | |
|
Rolling Acres Mutual Water Company Yolo County |
40 | 0 | 0 | |
|
Rush Creek Lodge Water System Tuolumne County |
40 | 1 | 0 | |
|
Seymour's Mutual Water System Trinity County |
40 | 3 | 1 | |
|
Silverado Water System Sacramento County |
40 | 1 | 0 | |
|
Siskiyou Forest Products Shasta County |
40 | 0 | 0 | |
|
Skyland Ranch Camp Riverside County |
40 | 0 | 0 | |
|
Slo Partners San Luis Obispo County |
40 | 1 | 1 | |
|
Sonoma County Mutual Water Company Sonoma County |
40 | 0 | 0 | |
|
Speedling, INC San Luis Obispo County |
40 | 0 | 0 | |
|
Spencer Valley School District San Diego County |
40 | 2 | 0 | |
|
ST Francis Motel San Joaquin County |
40 | 2 | 0 | |
|
St. Supery Winery Napa County |
40 | 0 | 0 | |
|
Stonewood Canyon Estates Riverside County |
40 | 0 | 0 | |
|
Storer Transportation Stanislaus County |
40 | 1 | 0 | |
|
Sutter Pines MHP Amador County |
40 | 1 | 0 | |
|
The Village Madera County |
40 | 0 | 0 | |
|
Tnf-Union Flat CG Sierra County |
40 | 1 | 0 | |
|
Tnf-Yuba Pass CG Sierra County |
40 | 0 | 0 | |
|
Truck Tops USA Santa Rosa · Sonoma County |
40 | 0 | 0 | |
|
Usfs-Middle Creek CG Lake County |
40 | 0 | 0 | |
|
Vaca-Dixon Substation Solano County |
40 | 0 | 0 | |
|
Veterinary Development Company Placer County |
40 | 1 | 1 | |
|
Wall Water Lake County |
40 | 0 | 0 | |
|
Weaver Lumber Water System Shasta County |
40 | 1 | 1 | |
|
West Water Company (puc) Sonoma County |
40 | 0 | 0 | |
|
Wine Country Apartments San Joaquin County |
40 | 0 | 0 | |
|
Womack Subdivision M.w.c. Tehama County |
40 | 2 | 2 |
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.