All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Teviston Community Services District Tulare County |
403 | 0 | 0 | |
|
Csp-Goat Rock State Beach Sonoma County |
402 | 0 | 0 | |
|
Josan and Josan, Inc. Fresno County |
402 | 1 | 0 | |
|
Las Cumbres Mutual Water CO Santa Cruz County |
402 | 1 | 0 | |
|
Mooney Grove Park Tulare County |
402 | 0 | 0 | |
|
Stone Lagoon-State Parks Humboldt County |
402 | 0 | 0 | |
|
Kern CO P&r-Lake Woollomes Water System Kern County |
401 | 0 | 0 | |
|
Acton la North KOA Los Angeles County |
400 | 0 | 0 | |
|
Agua Caliente County Park San Diego County |
400 | 0 | 0 | |
|
Angora Lakes Resort El Dorado County |
400 | 0 | 0 | |
|
Bonita Ranch RV Campground San Bernardino County |
400 | 1 | 0 | |
|
Bronco Winery Stanislaus County |
400 | 0 | 0 | |
|
Bsa/camp Chawanakee Fresno County |
400 | 0 | 0 | |
|
Cabana Holiday WS Monterey County |
400 | 0 | 0 | |
|
Caltrans-Salyer Safety Rest Stop Trinity County |
400 | 1 | 0 | |
|
Clear Creek Csd-Westwood Lassen County |
400 | 0 | 0 | |
|
Csa 51 Riverside County |
400 | 0 | 0 | |
|
Csp-Mendocino Woodlands Mendocino County |
400 | 0 | 0 | |
|
Campo Church Road System (hud Homes) County |
400 | 3 | 0 | |
|
Gold Arrow Camp Fresno County |
400 | 0 | 0 | |
|
Hometown Colonial Estates LLC Sacramento County |
400 | 0 | 0 | |
|
Janesville Elementary School Lassen County |
400 | 0 | 0 | |
|
KQ Ranch Resort San Diego County |
400 | 0 | 0 | |
|
Lakeport Cinemas Lake County |
400 | 0 | 0 | |
|
Monarch Nut Company Tulare County |
400 | 1 | 1 | |
|
Monterey Bay Academy Santa Cruz County |
400 | 0 | 0 | |
|
Morning Star Lake Resort Placer County |
400 | 0 | 0 | |
|
Moss Cove Rest Stop (caltrans) Mendocino County |
400 | 0 | 0 | |
|
Napa Valley Country Club Napa County |
400 | 1 | 1 | |
|
Neighborhood Church Anderson Cottonwood Anderson · Shasta County |
400 | 0 | 0 | |
|
Ocotillo RV Resort Imperial County |
400 | 1 | 0 | |
|
Olivet Elementary School Sonoma County |
400 | 2 | 2 | |
|
Pinezanita Inc. San Diego County |
400 | 0 | 0 | |
|
Plainfield Elem School Water Yolo County |
400 | 0 | 0 | |
|
Sequoia Union Elementary School Tulare County |
400 | 0 | 0 | |
|
Sierra Nevada Brewing Co. Butte County |
400 | 0 | 0 | |
|
Sunset Vista Estates MHP Kings County |
400 | 0 | 0 | |
|
Twin Hills School Dist-Apple Blossom Sch Sonoma County |
400 | 0 | 0 | |
|
Twin Hills School Dist-Twin Hills School Sonoma County |
400 | 0 | 0 | |
|
Twin Lakes Resort San Diego County |
400 | 5 | 2 | |
|
Vines R.v. Resort San Luis Obispo County |
400 | 0 | 0 | |
|
Wienerschnitzel San Joaquin County |
400 | 0 | 0 | |
|
Blythe Hidden Beaches Riverside County |
399 | 0 | 0 | |
|
Butte Creek Estates Mutual Water CO Butte County |
399 | 3 | 0 | |
|
Palm Springs Crest Riverside County |
399 | 0 | 0 | |
|
Gravenstein School District-Gravenstein Sonoma County |
398 | 1 | 1 | |
|
Tahoe City Pud Madden Creek Placer County |
397 | 0 | 0 | |
|
Chamisal WA Monterey County |
396 | 1 | 1 | |
|
Alta Elementary School Fresno County |
395 | 0 | 0 | |
|
Fcsa 39 a and B Fresno County |
395 | 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.