All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Three Rivers Village Tulare County |
25 | 0 | 0 | |
|
Tmc Suburban, LLC San Luis Obispo County |
25 | 0 | 0 | |
|
Tpwc Dba Quarry Lake Winery Sonoma County |
25 | 0 | 0 | |
|
Tract 1199 Water System Fresno County |
25 | 3 | 2 | |
|
Tracy Islamic Center Water System San Joaquin County |
25 | 0 | 0 | |
|
Tracy Wildlife Assoc San Joaquin County |
25 | 0 | 0 | |
|
Tree of Heaven Campground Siskiyou County |
25 | 0 | 0 | |
|
Treebones Resort WS Monterey County |
25 | 1 | 0 | |
|
Triangle Truck Stop (water) Stanislaus County |
25 | 1 | 0 | |
|
Tulare County Hauling Tulare County |
25 | 0 | 0 | |
|
Tulare Farms Lllp Water System San Joaquin County |
25 | 0 | 0 | |
|
Turner Road Vintners (west) San Joaquin County |
25 | 1 | 0 | |
|
Turtle Rock Napa County |
25 | 0 | 0 | |
|
Turtle Rock County Park Alpine County |
25 | 0 | 0 | |
|
Tule River Apple Valley County |
25 | 3 | 0 | |
|
U and a Mini Mart Fresno County |
25 | 0 | 0 | |
|
Unitarian Universalist Church WS Monterey County |
25 | 0 | 0 | |
|
Usace Tule Recreation Area Tulare County |
25 | 0 | 0 | |
|
Usfs Packers Bay Picnic Area Shasta County |
25 | 0 | 0 | |
|
Usfs Goose Meadows Placer County |
25 | 0 | 0 | |
|
Usfs Granite Flat Campground Placer County |
25 | 0 | 0 | |
|
Usfs Hampshire Rocks Campground Placer County |
25 | 0 | 0 | |
|
Usfs Hell Hole Placer County |
25 | 1 | 0 | |
|
Usfs North Fork Campground Placer County |
25 | 0 | 0 | |
|
Usfs Oak Flat Water System Lake County |
25 | 0 | 0 | |
|
Usfs Robinson Flat Placer County |
25 | 0 | 0 | |
|
Usfs Silver Creek Campground Placer County |
25 | 0 | 0 | |
|
Usfs-Appletree Flats V-3 Los Angeles County |
25 | 0 | 0 | |
|
Usfs-Los Alamos S-15 Los Angeles County |
25 | 0 | 0 | |
|
Usfs-Red Box Station A-3 Los Angeles County |
25 | 0 | 0 | |
|
Usfs-Skyline Park / Mount Wilson A-4 Los Angeles County |
25 | 0 | 0 | |
|
Usfs-Valyermo Ranger Station Los Angeles County |
25 | 1 | 1 | |
|
Usfs/dinkey Creek Work Center Fresno County |
25 | 0 | 0 | |
|
Vagabond Resort Plumas County |
25 | 0 | 0 | |
|
Vailima Estates Mutual Water Napa County |
25 | 0 | 0 | |
|
Valhalla Water Association Los Angeles County |
25 | 1 | 0 | |
|
Valley Landscaping & Maint INC San Joaquin County |
25 | 1 | 1 | |
|
Van Loon Water Association Inyo County |
25 | 0 | 0 | |
|
Verona Village River Resort Sutter County |
25 | 0 | 0 | |
|
Viaggio Winery Water System San Joaquin County |
25 | 0 | 0 | |
|
Victoria Island Farms San Joaquin County |
25 | 0 | 0 | |
|
Vidal Chevron San Bernardino County |
25 | 0 | 0 | |
|
Village at the Highlands Tehama County |
25 | 0 | 0 | |
|
Village Food Mart Water System Stanislaus County |
25 | 0 | 0 | |
|
Vimark Trione Winery Sonoma County |
25 | 0 | 0 | |
|
Wagon Train Road LLC San Bernardino County |
25 | 1 | 1 | |
|
Wake Island Water System Placer County |
25 | 0 | 0 | |
|
Walker Burger Mono County |
25 | 0 | 0 | |
|
Walker Community Hall and Park Mono County |
25 | 0 | 0 | |
|
Walker Country Store B.c.d.c. Mono 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.