All water systems in California
7,380 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Peak to Peak Mountain Charter School WS Kern County |
100 | 3 | 1 | |
|
Peloria Digger Bay LLC Shasta County |
100 | 0 | 0 | |
|
Penn Valley Shell Nevada County |
100 | 0 | 0 | |
|
People's Market & Deli Tulare County |
100 | 2 | 0 | |
|
Petaluma Livestock Auction Yard Sonoma County |
100 | 0 | 0 | |
|
Pine Ridge School Fresno County |
100 | 1 | 1 | |
|
Pioneer Market Madera County |
100 | 1 | 0 | |
|
Pioneer Park Water System El Dorado County |
100 | 2 | 0 | |
|
Pleasant Valley Campground Inyo County |
100 | 1 | 0 | |
|
Pleasant Valley Elementary San Luis Obispo County |
100 | 1 | 0 | |
|
Plumas Pines Resort Plumas County |
100 | 0 | 0 | |
|
Pnf Grasshopper / Grizzly Cgs Plumas County |
100 | 1 | 0 | |
|
Pnf MT Hough Ranger Station Plumas County |
100 | 0 | 0 | |
|
Point Pleasant Church Sacramento County |
100 | 0 | 0 | |
|
Porterville Citrus Rayo Tulare County |
100 | 0 | 0 | |
|
Potrero County Park San Diego County |
100 | 1 | 0 | |
|
Psea Camp Desabla Butte County |
100 | 0 | 0 | |
|
Quick Serve Chevron Madera County |
100 | 0 | 0 | |
|
Ragged Point Inn San Luis Obispo County |
100 | 1 | 0 | |
|
Ranch Coffee Shop San Joaquin County |
100 | 1 | 0 | |
|
Rancho Borromeo Mwc Monterey County |
100 | 1 | 1 | |
|
Red Top Market Madera County |
100 | 0 | 0 | |
|
Reeds Market Shasta County |
100 | 0 | 0 | |
|
Reynolds Water System Lake County |
100 | 0 | 0 | |
|
Riselen Park Yuba County |
100 | 0 | 0 | |
|
River View MHC LLC Tehama County |
100 | 0 | 0 | |
|
Roberts Ferry School Cafeteria Stanislaus County |
100 | 0 | 0 | |
|
Roma's Pizzeria Sacramento County |
100 | 0 | 0 | |
|
Round Hill Winery Napa County |
100 | 0 | 0 | |
|
Round Mountain Oil INC Shasta County |
100 | 0 | 0 | |
|
Rudd Wines, Inc., Dba Rudd Napa County |
100 | 0 | 0 | |
|
Round Valley Admin. Complex County |
100 | 6 | 1 | |
|
SA 14 Chuk Chanse Subdivision Madera County |
100 | 0 | 0 | |
|
Sac Valley Truck Stop Sacramento County |
100 | 1 | 1 | |
|
San Miguel WS #01 Monterey County |
100 | 2 | 2 | |
|
Sandmound Mutual Contra Costa County |
100 | 2 | 2 | |
|
Sequoia Water Company Sonoma County |
100 | 0 | 0 | |
|
Shasta Cascade Mobilehome Park Siskiyou County |
100 | 1 | 1 | |
|
Sherwood Forest Golf Club Fresno County |
100 | 0 | 0 | |
|
Sierra Estates Mutual Water Company Nevada County |
100 | 2 | 1 | |
|
Sierra Gold Nurseries Sutter County |
100 | 0 | 0 | |
|
Sierra Park Water Company Inc. Tuolumne County |
100 | 1 | 0 | |
|
Silva's Sheldon Inn Sacramento County |
100 | 0 | 0 | |
|
Silverado Vineyards Napa County |
100 | 0 | 0 | |
|
Sjc Sports Complex San Joaquin County |
100 | 0 | 0 | |
|
Sky Mountain Outdoor Education Center Placer County |
100 | 0 | 0 | |
|
SO Trinity Unified School Dist. Trinity County |
100 | 1 | 1 | |
|
Solano Verde Mutual Water CO Ventura County |
100 | 0 | 0 | |
|
Somerset House Water System El Dorado County |
100 | 0 | 0 | |
|
Spindrift Marina Sacramento County |
100 | 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.