All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Usfs French Gulch Campground WS Kern County |
42 | 0 | 0 | |
|
White Lotus Santa Barbara County |
42 | 0 | 0 | |
|
11:11 Winery Napa County |
41 | 0 | 0 | |
|
Fantesca Winery Napa County |
41 | 0 | 0 | |
|
Fresno Memorial Gardens Fresno · Fresno County |
41 | 0 | 0 | |
|
Langtry Farms Lake County |
41 | 0 | 0 | |
|
Zichichi Winery Sonoma County |
41 | 0 | 0 | |
|
Alba WS Monterey County |
40 | 0 | 0 | |
|
Alhatti Christian Mountain Res Riverside County |
40 | 0 | 0 | |
|
Auteur Russian River Winery Sonoma County |
40 | 0 | 0 | |
|
Black Hawk Lodge Madera County |
40 | 0 | 0 | |
|
Bucks Lake Lodge & Timberline Lodge Plumas County |
40 | 0 | 0 | |
|
Building Trades Assoc Sacramento County |
40 | 0 | 0 | |
|
Calvary Concow Church Butte County |
40 | 0 | 0 | |
|
Camp Wilderness Tulare County |
40 | 0 | 0 | |
|
Casa Grande Motel Madera County |
40 | 0 | 0 | |
|
Chamisal Vineyards Cayucos · San Luis Obispo County |
40 | 0 | 0 | |
|
Cinco Poses Camp Usfs Riverside County |
40 | 0 | 0 | |
|
Clear Creek Latter Day Saints Church Susanville · Lassen County |
40 | 0 | 0 | |
|
Coarsegold Self Serve Madera County |
40 | 1 | 0 | |
|
Countryside Drive-In Sacramento County |
40 | 1 | 0 | |
|
Cove Island Resort Fresno County |
40 | 1 | 0 | |
|
Crain Park Water System Butte County |
40 | 0 | 0 | |
|
Dark Canyon Campground Usfs Riverside County |
40 | 1 | 0 | |
|
Dutcher Crossing Winery Sonoma County |
40 | 0 | 0 | |
|
Echo Road Group Water Assoc El Dorado County |
40 | 0 | 0 | |
|
Farmers Market Madera County |
40 | 0 | 0 | |
|
Four Winds Water System Kern County |
40 | 0 | 0 | |
|
Gamble Family Vineyards Winery Napa County |
40 | 0 | 0 | |
|
Gurdjieff Foundation Sonoma County |
40 | 0 | 0 | |
|
Hasson O S Kern County |
40 | 0 | 0 | |
|
Hudson Vineyards Winery Water System Napa County |
40 | 0 | 0 | |
|
Investors of King Island Water Sys San Joaquin County |
40 | 1 | 0 | |
|
Jande Country Market Yuba County |
40 | 0 | 0 | |
|
Kilner Park Placer County |
40 | 0 | 0 | |
|
Marion Mtn/ Fern Basin Usfs Riverside County |
40 | 0 | 0 | |
|
Mauritson Family Winery Sonoma County |
40 | 0 | 0 | |
|
Mom's Apple Pie Sonoma County |
40 | 0 | 0 | |
|
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: Philbrook Dam Butte County |
40 | 0 | 0 | |
|
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 | |
|
Quesadilla Gorilla Tulare County |
40 | 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.