All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sonoma Valley Moose Lodge #2048 Sonoma County |
80 | 0 | 0 | |
|
Stone Corral Community Church Calaveras County |
80 | 0 | 0 | |
|
The Patch Fruit Stand Kern County |
80 | 0 | 0 | |
|
Usfs Bailey Cove Campground Shasta County |
80 | 0 | 0 | |
|
Usfs-Fish Creek Campground Tulare County |
80 | 0 | 0 | |
|
Usfs-Horse Meadow Campground Tulare County |
80 | 0 | 0 | |
|
Hunewill's Doc and Al's Resort Mono County |
79 | 0 | 0 | |
|
Kkottongnae Retreat Camp Riverside County |
79 | 0 | 0 | |
|
Leland Creek Improvement Assoc Tuolumne County |
79 | 1 | 0 | |
|
Csa 29 Midway Park San Bernardino County |
78 | 1 | 0 | |
|
Hope Valley Resort Alpine County |
78 | 0 | 0 | |
|
Loch Lomond Rec Area Santa Cruz WD Santa Cruz County |
78 | 0 | 0 | |
|
Marions Ranch House Motel San Joaquin County |
78 | 0 | 0 | |
|
Sierra Sky Ranch Water System Madera County |
78 | 0 | 0 | |
|
Sonny Bono Salton Sea Wildlife Refuge Imperial County |
78 | 0 | 0 | |
|
Sugarloaf Cottages Shasta County |
78 | 0 | 0 | |
|
Usfs Sweetwater Campground Tuolumne County |
78 | 1 | 0 | |
|
Inn at Schoolhouse Creek Mendocino County |
77 | 0 | 0 | |
|
Poso Park Assn Tulare County |
77 | 0 | 0 | |
|
Sans End RV Park County |
77 | 5 | 0 | |
|
Westside Storage Water System Sonoma County |
77 | 0 | 0 | |
|
Cdpr Four Rivers District-Basalt Merced County |
76 | 0 | 0 | |
|
Crowell King Ridge, LLC Sonoma County |
76 | 0 | 0 | |
|
Eddo's Harbor & R V Park Sacramento County |
76 | 1 | 0 | |
|
EL Rancho Motel San Joaquin County |
76 | 1 | 0 | |
|
Honeydew Country Store Humboldt County |
76 | 0 | 0 | |
|
Ananda Retreat Center Nevada County |
75 | 0 | 0 | |
|
Anderson Moose Lodge # 509 Shasta County |
75 | 0 | 0 | |
|
Apostolic Tabernacle Merced County |
75 | 0 | 0 | |
|
Auberry Seventh Day Adventist Church Fresno County |
75 | 0 | 0 | |
|
Bethel Baptist Church Contra Costa County |
75 | 0 | 0 | |
|
Bridgehead Cafe Contra Costa County |
75 | 0 | 0 | |
|
Cathiard Family Estate Winery Napa County |
75 | 0 | 0 | |
|
Ceja-Reyes INC Yolo County |
75 | 0 | 0 | |
|
Center of Effort Winery San Luis Obispo County |
75 | 0 | 0 | |
|
China Flat Campground El Dorado County |
75 | 0 | 0 | |
|
Cleveland Corral Rest Area El Dorado 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 | |
|
Dutton Ranch Corporation Sonoma County |
75 | 0 | 0 | |
|
Gas N Grab Tulare County |
75 | 1 | 0 | |
|
Happy Bar Sacramento County |
75 | 0 | 0 | |
|
Indian Beach Resort Lake County |
75 | 0 | 0 | |
|
Kenwood Bpsc LLC Sonoma County |
75 | 0 | 0 | |
|
Kings Canyon RV Resort Fresno County |
75 | 1 | 0 | |
|
LA Cantera Racquet Club Sonoma County |
75 | 1 | 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 |
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.