All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Spring Valley School Butte County |
100 | 3 | 2 | |
|
Sri Guru Nanak Sikh Temple Sutter County |
100 | 0 | 0 | |
|
ST Jude Catholic Church Fresno County |
100 | 0 | 0 | |
|
Stockton Silver Lake Family Camp Amador County |
100 | 1 | 0 | |
|
Stumpy Meadows Campground El Dorado County |
100 | 1 | 0 | |
|
Subway Sandwich Sacramento County |
100 | 1 | 0 | |
|
Sumner Peck Ranch Fresno County |
100 | 0 | 0 | |
|
Sun Pacific Shippers-Maricopa Water Sys. Kern County |
100 | 0 | 0 | |
|
Sunrise Mountain Mutual Water Company Sonoma County |
100 | 0 | 0 | |
|
Sure Fresh Produce Santa Barbara County |
100 | 0 | 0 | |
|
Table MT Chevron Madera County |
100 | 1 | 0 | |
|
Tahoe City Pud Glenridge El Dorado County |
100 | 0 | 0 | |
|
Ted's Water System San Bernardino County |
100 | 1 | 0 | |
|
Teichert Perkins Sacramento County |
100 | 1 | 1 | |
|
The Vista Ranch and Cellars Merced County |
100 | 0 | 0 | |
|
Tnf-Sardine Lake/salmon Creek Sierra County |
100 | 0 | 0 | |
|
Tnf-Wild Plum CG Sierra County |
100 | 0 | 0 | |
|
Turner Cut Resort San Joaquin County |
100 | 0 | 0 | |
|
Twin Lakes Resort Mono County |
100 | 0 | 0 | |
|
Temalpakh Farm County |
100 | 1 | 0 | |
|
UC Berkeley Forestry Camp Plumas County |
100 | 0 | 0 | |
|
United Park INC Madera County |
100 | 0 | 0 | |
|
US Army Corps/trimmer Campground Fresno County |
100 | 0 | 0 | |
|
Usace-Horse Creek Campground Tulare County |
100 | 0 | 0 | |
|
Usace-Slick Rock Day Use Tulare County |
100 | 0 | 0 | |
|
Usbr-Admin Center Tuolumne County |
100 | 0 | 0 | |
|
Usfs Antlers Campground Shasta County |
100 | 0 | 0 | |
|
Usfs Jenn/ellery/ppt/mccloud Shasta County |
100 | 0 | 0 | |
|
Usfs South Fork Recreation Area Kern County |
100 | 0 | 0 | |
|
Usfs Dardanelle Camp Brightmn Tuolumne County |
100 | 1 | 0 | |
|
Usfs Sugar Pine Reservoir Placer County |
100 | 0 | 0 | |
|
Valley HI Country Club Sacramento County |
100 | 1 | 0 | |
|
Valley of the Moon Plaza Shopping Center Sonoma County |
100 | 0 | 0 | |
|
Ventura Farms Ventura County |
100 | 0 | 0 | |
|
Villa Toscano Winery Amador County |
100 | 0 | 0 | |
|
Village Bradshaw Sacramento County |
100 | 1 | 0 | |
|
Vision Calvary Chapel Lindsay · Tulare County |
100 | 0 | 0 | |
|
Walnut Grove Marina Sacramento County |
100 | 0 | 0 | |
|
Waukena Market Tulare County |
100 | 0 | 0 | |
|
West Kingdom Hall of Jehovah's Witnesses San Joaquin County |
100 | 1 | 0 | |
|
Wildhaven Yosemite Water System Mariposa County |
100 | 0 | 0 | |
|
Willow Creek School Siskiyou County |
100 | 2 | 1 | |
|
Willowside Terrace Water Association San Diego County |
100 | 2 | 1 | |
|
Wrightwood Country Club San Bernardino County |
100 | 0 | 0 | |
|
Yellow Jacket Campground El Dorado County |
100 | 1 | 0 | |
|
YMCA Camp Redwood Fresno County |
100 | 0 | 0 | |
|
Alturas Fillmore MHP Ventura County |
99 | 0 | 0 | |
|
Anglers Subdivision 4 Contra Costa County |
99 | 1 | 1 | |
|
Azteca Milling LP Valley Grain Madera County |
99 | 0 | 0 | |
|
Bend Mobilehome & RV Park Tehama County |
99 | 1 | 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.