All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Mela's Mexican Restaurant Yuba County |
26 | 0 | 0 | |
|
Mendocino Market Mendocino County |
26 | 0 | 0 | |
|
Mirasol Company Water System Kern County |
26 | 0 | 0 | |
|
Moss Mobile Manor San Bernardino County |
26 | 1 | 1 | |
|
Mountain of Attention Water Lake County |
26 | 0 | 0 | |
|
Nature Whole Food Depot Sonora · Tuolumne County |
26 | 0 | 0 | |
|
Orange Blossom Recreation Area Stanislaus County |
26 | 0 | 0 | |
|
Orsi Family Vineyards Sonoma County |
26 | 0 | 0 | |
|
Pacific Dunes Ranch San Luis Obispo County |
26 | 0 | 0 | |
|
Pacific Union Packing Merced County |
26 | 0 | 0 | |
|
Park Investments Water System Tulare County |
26 | 1 | 0 | |
|
Pestoni Family Estate Winery Napa County |
26 | 0 | 0 | |
|
Pg&e AG Wishon Powerhouse Madera County |
26 | 0 | 0 | |
|
Pinecrest Elementary School Tuolumne County |
26 | 3 | 1 | |
|
Pyramid Lake RV Resort Los Angeles County |
26 | 1 | 0 | |
|
Rancho Rio Equestrian Center Kern County |
26 | 0 | 0 | |
|
Rio Vista Mobilehome Estates Shasta County |
26 | 2 | 1 | |
|
River One RV Park Butte County |
26 | 0 | 0 | |
|
River Road Mutual Water Company Stanislaus County |
26 | 1 | 1 | |
|
Rochioli Winery Sonoma County |
26 | 0 | 0 | |
|
Rued Vineyards Sonoma County |
26 | 0 | 0 | |
|
Shiloh-Paradise Baseball for Youth Stanislaus County |
26 | 1 | 0 | |
|
Shively's Bar & Grill Stanislaus County |
26 | 1 | 0 | |
|
Shoreline School Dist: Bus Garage Marin County |
26 | 0 | 0 | |
|
Smart Stop Food Mart (eh) Stanislaus County |
26 | 0 | 0 | |
|
South Desert Mutual Water Company Kern County |
26 | 0 | 0 | |
|
Spring Mountain Mutual Water Company Kern County |
26 | 1 | 1 | |
|
Stripe N Seal Sonoma County |
26 | 0 | 0 | |
|
Sunce Winery Sonoma County |
26 | 0 | 0 | |
|
Sutter Home Winery Inc. Trinchero CC San Luis Obispo County |
26 | 0 | 0 | |
|
Taqueria Rancho Alegre Stanislaus County |
26 | 0 | 0 | |
|
Terhel Farms Trailer Park 01 Colusa County |
26 | 0 | 0 | |
|
Terhel Farms Trailer Park 02 Colusa · Colusa County |
26 | 0 | 0 | |
|
Timber Crest Farms Sonoma County |
26 | 0 | 0 | |
|
Under Canvas-Yosemite Tuolumne County |
26 | 0 | 0 | |
|
Usfs Chuchupate Ranger Station Ventura County |
26 | 1 | 1 | |
|
Valley Home School Pioneer Stanislaus County |
26 | 0 | 0 | |
|
Van Ruiten Family Winery San Joaquin County |
26 | 1 | 0 | |
|
Vca Forestville Animal Hospital Sonoma County |
26 | 0 | 0 | |
|
VFW Post 5059 Water System Stanislaus County |
26 | 1 | 1 | |
|
Webber Lake Campground Sierra County |
26 | 0 | 0 | |
|
Wheatland Park Estates Yuba County |
26 | 1 | 1 | |
|
Whiskey River Saloon Stanislaus County |
26 | 0 | 0 | |
|
Yumi Dates Freezer Facility Imperial County |
26 | 0 | 0 | |
|
141 Suburban Road Water Supply San Luis Obispo County |
25 | 1 | 0 | |
|
A Sambado & Son 39-321 San Joaquin County |
25 | 0 | 0 | |
|
Abf Freight Water System San Joaquin County |
25 | 0 | 0 | |
|
Ada's Lodges San Luis Obispo County |
25 | 1 | 0 | |
|
Adin Supply Co. Modoc County |
25 | 0 | 0 | |
|
Airport Commercial Plaza Shasta County |
25 | 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.