Tapcensus

All water systems in California

7,380 systems

SystemServesStatusRules violated, 3 yrUnresolved
Sender's Market
Calaveras County
50 0 0
Shoei Foods (usa), Inc.
Yuba County
50 0 0
Sierra Valley RV Park
Plumas County
50 0 0
Silverfork Store Water System
El Dorado County
50 2 0
Skylawn Memorial Park (skylawn Inc)
San Mateo County
50 1 1
Soda Canyon Store
Napa County
50 1 0
Soda Rock Winery
Sonoma County
50 0 0
Sonoma County Parks-Riverfront Park
Sonoma County
50 0 0
Sonoma West Holdings North Plant
Sonoma County
50 0 0
South Feather W&p Strawberry Campround
Butte County
50 0 0
South Shore Recreation Area
El Dorado County
50 2 1
Springwood Estates Mwc
San Benito County
50 0 0
Stags Leap Winery
Napa County
50 0 0
Sunny Acres Mwc
Santa Cruz County
50 0 0
Sunny Acres Preschool
Tulare County
50 1 1
Super Drive in
Fresno County
50 1 0
Sycamore Canyon / Goodan Ranch
San Diego County
50 0 0
Tabernacle of Praise Church
Fresno County
50 1 0
Taboose Creek Campground
Inyo County
50 1 0
Tahoe Park Water CO Skyland/nielsen
Placer County
50 0 0
Tamarack Cabin Owners Assn
Calaveras County
50 0 0
Taqueria EL Ahijado Nelo
Galt · Sacramento County
50 0 0
Tavis Corporation
Mariposa County
50 4 1
Tecopa Hot Springs Park
Inyo County
50 1 0
Tecopa Palms Therapeutic Hot Springs Res
Inyo County
50 0 0
Tennant C.s.d.
Siskiyou County
50 1 1
Tessenderlo Kerley INC
Fresno County
50 1 1
The Land
Mendocino County
50 0 0
The Morning Star Packing Company
Merced County
50 1 1
The New Wrangler, INC
Sacramento County
50 1 0
The Rainbow Junction Water System
Santa Clara County
50 2 0
Tierra Buena MHP #1
Sutter County
50 0 0
Tiki Lagoon Resort & Marina
San Joaquin County
50 0 0
Tomales Church of the Assumption
Marin County
50 0 0
Top Industries WS
Monterey County
50 1 0
Turkey Creek Golf Club
Placer County
50 0 0
Turley Wine Cellars
Amador County
50 0 0
Turtle Creek Water System
Madera County
50 1 0
Twin Creeks Mobile and RV Village
Lake County
50 1 1
Twin Hills Vineyard
Sonoma County
50 0 0
Two Rivers RV Park
San Joaquin County
50 0 0
UC Davis-School of Vet. Med. Center
Tulare County
50 0 0
US Pipe Fabrication
Yuba County
50 0 0
USA Waste of California
Fresno County
50 0 0
Usfs-Chilao Main A-9
Los Angeles County
50 0 0
Venture Estates Mwc
San Benito County
50 1 0
Verona Marina Launch & R.v.
Sutter County
50 0 0
Victor Service Center
San Joaquin County
50 0 0
Vista de las Cruces
Santa Barbara County
50 0 0
Waterloo Gun & Bocce Club
San Joaquin County
50 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.