All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Dollar General Store Weed Weed · Siskiyou County |
50 | 0 | 0 | |
|
Dream Mountain Christian Camp Inc. Calaveras County |
50 | 0 | 0 | |
|
Durham Park Butte County |
50 | 0 | 0 | |
|
East County Transitional Living Center San Diego County |
50 | 1 | 0 | |
|
Element 79 Vineyards El Dorado County |
50 | 1 | 0 | |
|
Englebright Dam Recreation Center Nevada County |
50 | 0 | 0 | |
|
Flood Ranch/rancho Sisquoc Santa Barbara County |
50 | 0 | 0 | |
|
Fremont Diner Sonoma County |
50 | 1 | 0 | |
|
Gorda WS Monterey County |
50 | 0 | 0 | |
|
Gordon's Well #1 Imperial County |
50 | 0 | 0 | |
|
Gordon's Well Park # 2 Imperial County |
50 | 0 | 0 | |
|
Grace Korean Church Riverside County |
50 | 0 | 0 | |
|
Granite Ridge San Luis Obispo County |
50 | 0 | 0 | |
|
Gray Eagle Lodge Plumas County |
50 | 0 | 0 | |
|
Gray Water System Sonoma County |
50 | 0 | 0 | |
|
Grimes Boat Landing Colusa County |
50 | 0 | 0 | |
|
Hadley Date Gardens Riverside County |
50 | 1 | 0 | |
|
Hartland Water Company Tulare County |
50 | 0 | 0 | |
|
Henninger Flats Los Angeles County |
50 | 0 | 0 | |
|
Home Creek Tract Fresno County |
50 | 0 | 0 | |
|
Hunter Ranch Golf Course San Luis Obispo County |
50 | 0 | 0 | |
|
Italian Athletic Club San Joaquin County |
50 | 1 | 0 | |
|
Jakov Dulcich & Sons Water System Kern County |
50 | 0 | 0 | |
|
Keller Estate Winery Sonoma County |
50 | 0 | 0 | |
|
Kings Country Club Kings County |
50 | 0 | 0 | |
|
Kings River Winery Fresno County |
50 | 0 | 0 | |
|
Ko-Ket Resort Sacramento County |
50 | 0 | 0 | |
|
Laguna Vista Boat Club San Luis Obispo County |
50 | 0 | 0 | |
|
Lake Alpine Rec. Area Alpine County |
50 | 0 | 0 | |
|
Lake Don Pedro Homeowners Tuolumne County |
50 | 1 | 0 | |
|
Lake Haven Resort Plumas County |
50 | 0 | 0 | |
|
Living Springs Church Los Angeles County |
50 | 0 | 0 | |
|
Lnf Almanor CG Plumas County |
50 | 0 | 0 | |
|
Lodi Airport Cafe San Joaquin County |
50 | 0 | 0 | |
|
Lucia WS Monterey County |
50 | 0 | 0 | |
|
Maif Marshall Aqua Improvement Forum Marin County |
50 | 0 | 0 | |
|
Marshall Boat Works Marin County |
50 | 0 | 0 | |
|
McPr Darrah School Park Mariposa County |
50 | 0 | 0 | |
|
McPr-Midpines Park Mariposa County |
50 | 0 | 0 | |
|
Merriam Winery Sonoma County |
50 | 0 | 0 | |
|
MI Ranchito Restaurant Yuba County |
50 | 0 | 0 | |
|
Michel-Schlumberger Fine Wine Estate Sonoma County |
50 | 0 | 0 | |
|
Moravia Wines Fresno County |
50 | 0 | 0 | |
|
Napa Valley Marina Napa County |
50 | 1 | 0 | |
|
New Age Church of Being-Sierra Hot Spr. Sierra County |
50 | 0 | 0 | |
|
North San Juan Community Center Nevada County |
50 | 1 | 0 | |
|
Northshore S & B, INC San Luis Obispo County |
50 | 0 | 0 | |
|
Ocotillo Wells Svra HQ San Diego County |
50 | 1 | 0 | |
|
One Stop WS Stanislaus County |
50 | 1 | 0 | |
|
Pacific Valley Campground Alpine County |
50 | 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.