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 |
|---|---|---|---|---|
| Cachagua Mutual WS (#4) | Carmel Valley, CA | 55 | 55 | - |
| Marina Landfill WS | Marina, CA | 55 | 46 | - |
| Laird Family Estate | Napa, CA | 55 | 57 | - |
| Freemark Abbey Winery | Santa Rosa, CA | 55 | 20 | - |
| Korths Pirates Lair | Isleton, CA | 55 | 36 | - |
| Valenzuela Water System | Hollister, CA | 55 | 117 | - |
| Camp Waterman MWC | Williams, CA | 55 | 4 | - |
| Town & Country Inn | Stockton, CA | 55 | 8 | - |
| Finnlees Trailer Park | Woodland, CA | 55 | 12 | - |
| Mokelumne Mobile Senior Park | Galt, CA | 55 | 26 | - |
| Riverside Mobile Home Park | Walnut Grove, CA | 55 | 25 | - |
| Rim Rock Water Company | Grover Beach, CA | 55 | 69 | - |
| Lingate Lane Mutual Water Company | Santa Barbara, CA | 55 | 12 | - |
| Quail Creek Estates Mutual Water Company | Gilroy, CA | 55 | 0 | - |
| Kim Son Monastery | Morgan Hill, CA | 55 | 33 | - |
| Elevate Addiction Services | Watsonville, CA | 55 | 6 | - |
| Shasta Horizon Mobile Home Park | Sacramento, CA | 55 | 9 | - |
| Neil's Service Center II | Vacaville, CA | 55 | 2 | - |
| Saint Anne's Crossing Winery | Kenwood, CA | 55 | 6 | - |
| Preston Winery | Healdsburg, CA | 55 | 8 | - |
| Ratna Ling Retreat | Cazadero, CA | 55 | 4 | - |
| Comstock Winery | Healdsburg, CA | 55 | 0 | - |
| Donum Estate Water System | Sonoma, CA | 55 | 0 | - |
| Chalk Hill Winery | Healdsburg, CA | 55 | 0 | - |
| Country Western Mhrv | Modesto, CA | 55 | 67 | - |
| E. Silver Lake Homeowners | Genoa, CA | 54 | 17 | - |
| Bethel Missionary Baptist | Oakley, CA | 54 | 19 | - |
| Tamarack Park Homeowners Assoc | Sacramento, CA | 54 | 4 | - |
| Llanas Camp Four Water System | Shafter, CA | 54 | 18 | - |
| Brassfield Estate Winery | Clearlake Oaks, CA | 54 | 2 | - |
| Diamond Mountain Golf Club | Susanville, CA | 54 | 14 | - |
| Usfs-Big Pines V-2 | Arcadia, CA | 54 | 8 | - |
| Westside Grocery, Inc. | Livingston, CA | 54 | 2 | - |
| Sea Rock Inn | Mendocino, CA | 54 | 24 | - |
| Corda RD WS | Salinas, CA | 54 | 43 | - |
| Tierra Vista MWC | Salinas, CA | 54 | 120 | - |
| Valivu Estates MHP | Greenville, CA | 54 | 3 | - |
| Harmony Haven | Riverside, CA | 54 | 33 | - |
| Sequoia Water Assoc | Courtland, CA | 54 | 4 | - |
| Banta Inn Water System | Tracy, CA | 54 | 10 | - |
| Carpenter Winery | Paso Robles, CA | 54 | 0 | - |
| Alegria Domestic Mutual Water Company | Gaviota, CA | 54 | 3 | - |
| Walking M Ranches | Solvang, CA | 54 | 8 | - |
| River Grove Mutual Water Assn | Felton, CA | 54 | 53 | - |
| Allan Lane Water Association | Corralitos, CA | 54 | 26 | - |
| Rooster's Landing | Anderson, CA | 54 | 2 | - |
| E String Cellars | Healdsburg, CA | 54 | 6 | - |
| Camp Liahona | Clovis, CA | 53 | 1 | - |
| Fcpg/Choinumni Campground | Fresno, CA | 53 | 44 | - |
| Ocean Grove Lodge | Trinidad, CA | 53 | 52 | - |