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 |
|---|---|---|---|---|
| Joshua Tree Lake RV/Camp | Joshua Tree, CA | 106 | 2 | - |
| ND Daniel's Investment LLC | Dulzura, CA | 106 | 19 | - |
| Walnut Acres | Stockton, CA | 106 | 7 | - |
| Varian Ranch Mutual Water | Arroyo Grande, CA | 106 | 3 | - |
| Sveadal Water System | South San Francisco, CA | 106 | 27 | - |
| Sun Mountain M.W.C. | Mt. Shasta, CA | 106 | 12 | - |
| Gundlach Bundschu Winery | Sonoma, CA | 106 | 11 | - |
| Gary Farrell Winery | Healdsburg, CA | 106 | 2 | - |
| Journey S End Resort | Mad River, CA | 106 | 4 | - |
| Kings River Estates Mutual Water Company | Kingsburg, CA | 106 | 47 | - |
| Balch Park | Visalia, CA | 106 | 38 | - |
| South Fork Estates Mutual Water Co | Three Rivers, CA | 106 | 8 | - |
| International Paper - Exeter Bulk | Exeter, CA | 106 | 22 | - |
| Ebrpd Bay Point Regional Shoreline | Oakland, CA | 105 | 0 | - |
| Helm School | Helm, CA | 105 | 9 | - |
| Handistop Market | Caruthers, CA | 105 | 0 | - |
| Rau Dairy | Caruthers, CA | 105 | 56 | - |
| St. Clair Ranchos Mutual Water Co. | Bakersfield, CA | 105 | 24 | - |
| Csp - Tule Elk | Lancaster, CA | 105 | 36 | - |
| Clear Creek Outdoor Education Center | Los Angeles, CA | 105 | 9 | - |
| Oak Heights W & R Co Inc | Salinas, CA | 105 | 67 | - |
| Scheid Vineyard WS | Greenfield, CA | 105 | 29 | - |
| Palm Gas Mart | Desert Hot Springs, CA | 105 | 12 | - |
| Morada Acres Water System | Stockton, CA | 105 | 7 | - |
| Paso Robles RV Ranch | Paso Robles, CA | 105 | 1 | - |
| Cove Mobile Villa | Sacramento, CA | 105 | 31 | - |
| Anaba Winery | Sonoma, CA | 105 | 24 | - |
| Shiloh School District | Modesto, CA | 105 | 33 | - |
| Packwood School | Visalia, CA | 105 | 15 | - |
| McWane Plant and Industrial, LLC | Exeter, CA | 105 | 112 | - |
| Mono Vista Ranch MHP | Rancho Cucamonga, CA | 105 | 13 | - |
| Tahoe Travel Inn | South Lake Tahoe, CA | 104 | 18 | - |
| Dinkey Creek Water Improvement | Prather, CA | 104 | 20 | - |
| Dino Mart 1 | Reedley, CA | 104 | 19 | - |
| Sce/Big Creek Powerhouse 1 | Rosemead, CA | 104 | 43 | - |
| Camp Trinidad RV Resort | Trinidad, CA | 104 | 18 | - |
| Eastern Sierra Tri County Fair | Bishop, CA | 104 | 37 | - |
| Rock Creek Lake Campground | Bishop, CA | 104 | 0 | - |
| Hickey Park | Hanford, CA | 104 | 1 | - |
| Westwind Mobile Home Park | Lake Oswego, CA | 104 | 45 | - |
| Nicasio Ranch LLC | Mill Valley, CA | 104 | 7 | - |
| Elim Foolish Pleasure | Aguanga, CA | 104 | 4 | - |
| Pinyon Crest HOA | Palm Desert, CA | 104 | 40 | - |
| Nps - Hole in the Wall Campground | Barstow, CA | 104 | 10 | - |
| Lone Wolf Colony | Apple Valley, CA | 104 | 5 | - |
| Lodi Lake Mobile Home Park | San Marino, CA | 104 | 14 | - |
| Kinecta Fcu | Manhattan Beach, CA | 104 | 168 | - |
| The Bridgehouse | Santa Barbara, CA | 104 | 7 | - |
| Oak Dell Park | Saratoga, CA | 104 | 73 | - |
| Mecchi Water Company | Lodi, CA | 104 | 28 | - |