All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Clear Creek Mobile Park Shasta County |
75 | 2 | 0 | |
|
Cleveland Corral Rest Area El Dorado County |
75 | 0 | 0 | |
|
Corinthian Bay Mutual Water Company Lake County |
75 | 0 | 0 | |
|
Country Club Vista Mutual Water CO San Joaquin County |
75 | 0 | 0 | |
|
Country Manor MHP San Joaquin County |
75 | 0 | 0 | |
|
Cruiser Haven Marina Contra Costa County |
75 | 0 | 0 | |
|
Crystal Crag Water & Development Assoc. Mono County |
75 | 0 | 0 | |
|
Csp MT Tam East Peak System Marin County |
75 | 0 | 0 | |
|
Duarte Nursery INC Water System Stanislaus County |
75 | 2 | 1 | |
|
Dutton Ranch Corporation Sonoma County |
75 | 0 | 0 | |
|
Eel River Charter School Mendocino County |
75 | 0 | 0 | |
|
Ferrari-Carano Winery Sonoma County |
75 | 1 | 1 | |
|
Friendly Acres MHP Tehama County |
75 | 2 | 2 | |
|
Gas N Grab Tulare County |
75 | 1 | 0 | |
|
Gold Hill Mobilehome Park Placer County |
75 | 0 | 0 | |
|
Golden Oaks Mobile Home Park Butte County |
75 | 3 | 0 | |
|
Green Gulch Farm Marin County |
75 | 1 | 1 | |
|
Happy Bar Sacramento County |
75 | 0 | 0 | |
|
Harbor View WA Monterey County |
75 | 1 | 1 | |
|
Harris Farms South 101-144 Fresno County |
75 | 0 | 0 | |
|
Howell's Lakeside Water Co. Tehama County |
75 | 2 | 1 | |
|
Indian Beach Resort Lake County |
75 | 0 | 0 | |
|
Jdh Tulare County |
75 | 0 | 0 | |
|
Jolly Giant Flea Market Shasta County |
75 | 0 | 0 | |
|
Kenwood Bpsc LLC Sonoma County |
75 | 0 | 0 | |
|
Keough's Hot Springs Inyo County |
75 | 0 | 0 | |
|
Kernvale Mutual Water CO Kern County |
75 | 0 | 0 | |
|
Kings Canyon RV Resort Fresno County |
75 | 1 | 0 | |
|
LA Cantera Racquet Club Sonoma County |
75 | 1 | 0 | |
|
LA Crema Winery Sonoma County |
75 | 0 | 0 | |
|
Lakeshore Villa RV Park Shasta County |
75 | 1 | 0 | |
|
Lasseter Family Winery Sonoma County |
75 | 0 | 0 | |
|
Lds Church Frazier Park Kern County |
75 | 0 | 0 | |
|
Manchester Union Elementary School Mendocino County |
75 | 0 | 0 | |
|
Manzanita Hills WA Monterey County |
75 | 0 | 0 | |
|
Marina Mobile Manor Contra Costa County |
75 | 0 | 0 | |
|
McCall and Kings Canyon Plaza Fresno County |
75 | 0 | 0 | |
|
McMillan Well Del Norte County |
75 | 0 | 0 | |
|
MD 58 Sierra Highlands Madera County |
75 | 0 | 0 | |
|
Nps Ggnra Marin County |
75 | 0 | 0 | |
|
Nps Prns Sky Camp Campground Marin County |
75 | 0 | 0 | |
|
Oak Glen Steak House San Bernardino County |
75 | 0 | 0 | |
|
Oaklane Mobile Village, Llc. El Dorado County |
75 | 0 | 0 | |
|
Oasis Investments Stanislaus County |
75 | 1 | 0 | |
|
Olancha Mobil Mart Bishop · Inyo County |
75 | 2 | 0 | |
|
Old Borges Ranch Water Sys Contra Costa County |
75 | 0 | 0 | |
|
Park Royal Mutual Water Company Sonoma County |
75 | 0 | 0 | |
|
Pg&e Northshore Campground Shasta County |
75 | 0 | 0 | |
|
Pine Ridge Winery Napa County |
75 | 1 | 0 | |
|
Pine Tree Lane Mutual Water CO Santa Cruz County |
75 | 1 | 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.