All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Shore Fun R.v. Park Mariposa County |
60 | 0 | 0 | |
|
Sonora East Center Tuolumne County |
60 | 1 | 0 | |
|
South Fork Womens Club, Inc. Kern County |
60 | 0 | 0 | |
|
Spear Creek Cabin Owners Assoc Tulare County |
60 | 0 | 0 | |
|
Sug's Mountain House Tulare County |
60 | 0 | 0 | |
|
Tarzana Treatment Centers, Inc. Los Angeles County |
60 | 0 | 0 | |
|
Terrace View Water System Sonoma County |
60 | 0 | 0 | |
|
The Trailhead El Dorado County |
60 | 1 | 0 | |
|
Usfs Groveland Ranger Stn. Tuolumne County |
60 | 1 | 0 | |
|
Usfs Lost Claim Tuolumne County |
60 | 1 | 0 | |
|
Usfs Sandbar Flat Campgd Tuolumne County |
60 | 1 | 0 | |
|
Vaca Villa Apartments Solano County |
60 | 0 | 0 | |
|
Valley Ford Hotel Sonoma County |
60 | 0 | 0 | |
|
Vieja Mutual Water Company Santa Barbara County |
60 | 1 | 0 | |
|
Villa Blue Estates Water District Lake County |
60 | 1 | 1 | |
|
Western Pallet Supply & Logistics San Joaquin County |
60 | 1 | 1 | |
|
Whale Gulch School Mendocino County |
60 | 2 | 2 | |
|
White Cloud Admin/campground Nevada County |
60 | 1 | 0 | |
|
Willow Pass Bussiness Park Water System Contra Costa County |
60 | 1 | 1 | |
|
Wine Country Inn Napa County |
60 | 1 | 1 | |
|
Yosemite Ridge Resort Mariposa County |
60 | 1 | 0 | |
|
Brookside Estates Mutual Water Company Inyo County |
59 | 2 | 1 | |
|
Cdf Oak Glen Conservation Camp San Bernardino County |
59 | 1 | 0 | |
|
Chetmoore Acres WA Monterey County |
59 | 0 | 0 | |
|
Foley Sonoma Winery Sonoma County |
59 | 0 | 0 | |
|
Hamel Family Wines Sonoma County |
59 | 0 | 0 | |
|
Leland Meadow Water District Tuolumne County |
59 | 1 | 0 | |
|
Mount Kare Camp/kare Youth League Los Angeles County |
59 | 0 | 0 | |
|
Pnp Stockton #80 San Joaquin County |
59 | 1 | 0 | |
|
Ryel Family Trust Merced County |
59 | 0 | 0 | |
|
Tahquitz Pines Riverside County |
59 | 0 | 0 | |
|
Thimio Mwc Monterey County |
59 | 1 | 0 | |
|
Black Bear Lodge El Dorado County |
58 | 2 | 0 | |
|
Dakota Shy Winery Napa County |
58 | 1 | 0 | |
|
Delight's Hot Springs Resort Inyo County |
58 | 1 | 0 | |
|
Gold Leaf Farming LLC Fresno County |
58 | 0 | 0 | |
|
Growers Transplanting WS Monterey County |
58 | 1 | 1 | |
|
Humboldt Highlands Mutual Butte County |
58 | 1 | 0 | |
|
Jed Smith Homeowners Assn. Del Norte County |
58 | 1 | 1 | |
|
LA Hacienda del Toro Sonoma County |
58 | 0 | 0 | |
|
Los Ranchos de Uvas Water Company Santa Clara County |
58 | 1 | 1 | |
|
Mid -Horseshoe Bend Rec Area Mariposa County |
58 | 0 | 0 | |
|
Paradise Valley Cafe Riverside County |
58 | 0 | 0 | |
|
Queen's Inn by the River Madera County |
58 | 0 | 0 | |
|
Rileys Place San Bernardino County |
58 | 1 | 0 | |
|
Saddle Mountain WS Monterey County |
58 | 0 | 0 | |
|
South Mountain Mutual Water CO Ventura County |
58 | 0 | 0 | |
|
The Yubaverse Sierra County |
58 | 1 | 0 | |
|
Tierra Meadows HOA WS Monterey County |
58 | 0 | 0 | |
|
Villa Shores County |
58 | 2 | 1 |
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.