All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Bar-Len Mwc San Bernardino County |
126 | 5 | 2 | |
|
Bear River Summer Home Tract Amador County |
126 | 1 | 0 | |
|
Brookside Mobile Home Park Inyo County |
126 | 0 | 0 | |
|
Burris Park Kings County |
126 | 0 | 0 | |
|
Camphora Apartments Monterey County |
126 | 2 | 1 | |
|
Crestwood Heights Water Assn Santa Cruz County |
126 | 0 | 0 | |
|
Empire Landing Campground-Sundance RV San Bernardino County |
126 | 2 | 0 | |
|
Fetzer Vineyards Mendocino County |
126 | 0 | 0 | |
|
Fircrest Mutual Water Company Sonoma County |
126 | 0 | 0 | |
|
Lili Valley Water Co. Calaveras County |
126 | 1 | 1 | |
|
Plavada Community Association Nevada County |
126 | 0 | 0 | |
|
Princes Camp Resort WS Monterey County |
126 | 0 | 0 | |
|
Riverview Mobile Home Park Contra Costa County |
126 | 1 | 1 | |
|
Shadow Mountain MHP Siskiyou County |
126 | 1 | 1 | |
|
Arp Minimart Corp WS San Joaquin County |
125 | 0 | 0 | |
|
Austin Industrial Park Water System San Joaquin County |
125 | 1 | 0 | |
|
Bear Mountain Library/act Cntr Fresno County |
125 | 0 | 0 | |
|
Bear River Group Campground Amador County |
125 | 0 | 0 | |
|
Burnt Ranch School Trinity County |
125 | 3 | 2 | |
|
Coast Gallery WS Monterey County |
125 | 0 | 0 | |
|
Countryside Mkt & Restrnt Comanche Kern County |
125 | 0 | 0 | |
|
Coyote Valley Mutual Water CO Imperial County |
125 | 1 | 1 | |
|
Emigrant Gap Mutual Water Co. Placer County |
125 | 0 | 0 | |
|
Fire Suppression Camp #19 Los Angeles County |
125 | 0 | 0 | |
|
Foley Family Wines Chateau St. Jean Sonoma County |
125 | 1 | 1 | |
|
Forest Ranch Charter School Butte County |
125 | 1 | 1 | |
|
Frank C Alegre Trucking INC WS San Joaquin County |
125 | 0 | 0 | |
|
Fresh Select, LLC Tulare County |
125 | 1 | 1 | |
|
Gerle Creek Campground El Dorado County |
125 | 0 | 0 | |
|
Glassfab Tempering Services Inc. San Joaquin County |
125 | 1 | 1 | |
|
Grace Fellowship Church Amador County |
125 | 0 | 0 | |
|
Grover Landscape Water System Stanislaus County |
125 | 2 | 1 | |
|
J Lohr Winery San Luis Obispo County |
125 | 0 | 0 | |
|
Jarvis Mutual Water System Santa Cruz County |
125 | 1 | 1 | |
|
Lake Fulmor Usfs Riverside County |
125 | 0 | 0 | |
|
Lamanuzzi Pantaleo CS Dehy Madera County |
125 | 1 | 0 | |
|
Lazy B Mobilehome Park Stanislaus County |
125 | 1 | 0 | |
|
Legacy Packing and Cold Storage Tulare County |
125 | 3 | 0 | |
|
Loon Lake Campground El Dorado County |
125 | 0 | 0 | |
|
Madera Hispanic Church Madera · Madera County |
125 | 1 | 0 | |
|
Malakoff Diggins Shp Nevada County |
125 | 0 | 0 | |
|
Matsuda's by Green Acres, LLC Sacramento County |
125 | 3 | 0 | |
|
Mitchells Camp Family Assoc. Imperial County |
125 | 0 | 0 | |
|
Moonstone Beach Trinidad Humboldt County |
125 | 0 | 0 | |
|
New Hope Landing General Store San Joaquin County |
125 | 0 | 0 | |
|
Oak Run Elementary School Shasta County |
125 | 1 | 0 | |
|
Outside Creek School Tulare County |
125 | 0 | 0 | |
|
Packer Lake Lodge Sierra County |
125 | 1 | 0 | |
|
Peters Fruit Farms, INC Tulare County |
125 | 1 | 0 | |
|
Port San Luis Harbor District San Luis Obispo County |
125 | 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.