All water systems in California
2,996 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
White Cloud Admin/campground Nevada County |
60 | 1 | 0 | |
|
Yosemite Ridge Resort Mariposa County |
60 | 1 | 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 | |
|
Tahquitz Pines Riverside County |
59 | 0 | 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 | |
|
LA Hacienda del Toro Sonoma County |
58 | 0 | 0 | |
|
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 | |
|
The Yubaverse Sierra County |
58 | 1 | 0 | |
|
Villa Shores County |
58 | 2 | 1 | |
|
7180 Hwy 116 LLC Sonoma County |
57 | 1 | 0 | |
|
All Hands Ecology Marin County |
57 | 0 | 0 | |
|
Bricoleur Vineyards Sonoma County |
57 | 0 | 0 | |
|
Cahuilla Mountain Market & Cafe Riverside County |
57 | 1 | 0 | |
|
Camp Angelus TR Land Assn San Bernardino County |
57 | 0 | 0 | |
|
Camp ST Francis Santa Cruz County |
57 | 0 | 0 | |
|
Ebrpd Morgan Territory Contra Costa County |
57 | 0 | 0 | |
|
Ektimo Vineyards Sonoma County |
57 | 0 | 0 | |
|
Glen Oaks WS #01 Monterey County |
57 | 0 | 0 | |
|
Thomason Tuolumne Rd. Prop (steve's Plac Tuolumne County |
57 | 2 | 0 | |
|
Belk Farms Riverside County |
56 | 2 | 0 | |
|
Huckleberry Water Development Fresno County |
56 | 0 | 0 | |
|
Lahontan Heights Home. Assoc. Lassen County |
56 | 1 | 0 | |
|
Lotus Store Water System Tahoe City · El Dorado County |
56 | 1 | 0 | |
|
Mineral Homeowner's Assn Tehama County |
56 | 0 | 0 | |
|
Outward Bound California Mariposa County |
56 | 1 | 0 | |
|
Pg&e Balch Camp Fresno County |
56 | 0 | 0 | |
|
Raudel Delgado Water System San Joaquin County |
56 | 0 | 0 | |
|
Rock Creek Lakes Resort Inyo County |
56 | 1 | 0 | |
|
Seafoam Lodge Mendocino County |
56 | 0 | 0 | |
|
Tamarack Park Homeowners Assoc El Dorado County |
56 | 0 | 0 | |
|
Vajrayana Foundation Santa Cruz County |
56 | 1 | 0 | |
|
Buck Ridge Hensley Lake Madera County |
55 | 0 | 0 | |
|
Cardinal Village Resort Inyo County |
55 | 0 | 0 | |
|
Comstock Winery Sonoma County |
55 | 0 | 0 | |
|
Donum Estate Water System Sonoma County |
55 | 0 | 0 | |
|
Idylwilde Tract Association Fresno County |
55 | 0 | 0 | |
|
Kim Son Monastery Santa Cruz County |
55 | 0 | 0 | |
|
McAvoy Yacht Harbor Contra Costa County |
55 | 0 | 0 | |
|
Neil's Service Center II Solano County |
55 | 0 | 0 | |
|
Preston Winery Sonoma County |
55 | 0 | 0 | |
|
Pit Stop County |
55 | 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.