Public Water Systems
7,249 active public water systems in CA, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Coyote Valley Mutual Water Co | Imperial, CA | 125 | 18 | - |
| Fire Suppression Camp #19 | Los Angeles, CA | 125 | 6 | - |
| River Creek Golf Club | Ahwahnee, CA | 125 | 13 | - |
| Lamanuzzi Pantaleo Cs Dehy | Madera, CA | 125 | 16 | - |
| Madera Hispanic Church | Madera, CA | 125 | 9 | - |
| Chateau Montelena Winery | Calistoga, CA | 125 | 12 | - |
| Sierra Family Medical Clinic | Nevada City, CA | 125 | 2 | - |
| Twin Ridges Grizzly Hill School | Nevada City, CA | 125 | 31 | - |
| Malakoff Diggins Shp | Tahoma, CA | 125 | 3 | - |
| Emigrant Gap Mutual Water Co. | Emigrant Gap, CA | 125 | 24 | - |
| Desert Dunes Golf Club Ltd | Desert Hot Springs, CA | 125 | 51 | - |
| Lake Fulmor - Usfs | San Bernardino, CA | 125 | 33 | - |
| Matsuda's by Green Acres, LLC | Sacramento, CA | 125 | 27 | - |
| Castle Mountain Mine | Henderson, CA | 125 | 7 | - |
| New Hope Landing General Store | Sacramento, CA | 125 | 12 | - |
| Arp Minimart Corp WS | Tracy, CA | 125 | 16 | - |
| Wilkinson Manor a-Zone PWS | Stockton, CA | 125 | 3 | - |
| Spanish Lakes Mutual Water Co | Templeton, CA | 125 | 0 | - |
| Port San Luis Harbor District | Avila Beach, CA | 125 | 1 | - |
| Courtside Cellars | Healdsburg, CA | 125 | 0 | - |
| Jarvis Mutual Water System | Santa Cruz, CA | 125 | 42 | - |
| Oak Run Elementary School | Oak Run, CA | 125 | 20 | - |
| Packer Lake Lodge | Prospect, CA | 125 | 35 | - |
| Snug Harbor RV LP | Walnut Grove, CA | 125 | 93 | - |
| Foley Family Wines Chateau St. Jean | Santa Rosa, CA | 125 | 4 | - |
| Lazy B Mobilehome Park | San Mateo, CA | 125 | 22 | - |
| Libitzky | Roseville, CA | 125 | 10 | - |
| Grover Landscape Water System | Modesto, CA | 125 | 2 | - |
| Burnt Ranch School | Burnt Ranch, CA | 125 | 11 | - |
| Lindy's Landing | Reedley, CA | 125 | 23 | - |
| Outside Creek School | Visalia, CA | 125 | 21 | - |
| Legacy Packing and Cold Storage | Dinuba, CA | 125 | 37 | - |
| Peters Fruit Farms, Inc | Reedley, CA | 125 | 50 | - |
| Treehouse California Almonds LLC | Earlimart, CA | 125 | 22 | - |
| Fresh Select, LLC | Dinuba, CA | 125 | 28 | - |
| Yes Charter Academy | Oregon House, CA | 125 | 55 | - |
| Tahoe City PUD - Glenridge | Tahoe City, CA | 124 | 0 | - |
| Creekside Cabins & RV Resort | Henderson, CA | 124 | 18 | - |
| Sierra Woods Lodge | Watsonville, CA | 124 | 25 | - |
| E & J Gallo Winery-Sonoma | Healdsburg, CA | 124 | 12 | - |
| Bethel Island Mutual Water Co | Bethel Island, CA | 123 | 11 | - |
| Oak Knolls Mutual Water Company | Lake Isabella, CA | 123 | 41 | - |
| Clear Ridge WA | Big Sur, CA | 123 | 44 | - |
| Cdfa-Mountain Pass Jpoe Ais | Sacramento, CA | 123 | 2 | - |
| Lockeford Mobile Home Park Wtr Sys | Concord, CA | 123 | 22 | - |
| Cal Fire - Mountain Home Cnsrvtn Camp | Springville, CA | 123 | 3 | - |
| Cws-Grand Oaks Water System | San Jose, CA | 122 | 11 | - |
| Long Canyon Water Company Corp. | Bakersfield, CA | 122 | 77 | - |
| Yosemite Bug Hostel | Midpines, CA | 122 | 12 | - |
| Plainsburg Elementary School | Merced, CA | 122 | 7 | - |