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 |
|---|---|---|---|---|
| Mayacamas Vineyards | Napa, CA | 25 | 41 | - |
| St. Helena Purlieu LLC | St Helena, CA | 25 | 27 | - |
| Golden Haven Motel | Calistoga, CA | 25 | 13 | - |
| Liana Estate | Rutherford, CA | 25 | 16 | - |
| Mending Wall Winery | Angwin, CA | 25 | 4 | - |
| Nine Suns Winery | St. Helena, CA | 25 | 0 | - |
| Alpha Omega Winery | Saint Helena, CA | 25 | 18 | - |
| Sequoia Grove Vineyards | Napa, CA | 25 | 9 | - |
| William Hill Winery | Napa, CA | 25 | 4 | - |
| O'Shaughnessy Winery | Angwin, CA | 25 | 8 | - |
| Miner Family Winery | St. Helena, CA | 25 | 6 | - |
| Dominus Estate Winery | Yountville, CA | 25 | 11 | - |
| Oakville Grade Winery | Oakville, CA | 25 | 16 | - |
| Odette Estate Water System | Angwin, CA | 25 | 42 | - |
| McCourtney Road Transfer Station | Nevada City, CA | 25 | 0 | - |
| Yulica | Nevada City, CA | 25 | 49 | - |
| Ncsos, McCourtney RD. | Grass Valley, CA | 25 | 26 | - |
| Cisco Grove Holdings | Elk Grove, CA | 25 | 3 | - |
| Usfs North Fork Campground | Nevada City, CA | 25 | 3 | - |
| Usfs Silver Creek Campground | Nevada City, CA | 25 | 26 | - |
| Clipper Gap Head Start | Auburn, CA | 25 | 29 | - |
| Olivers Grocery | Applegate, CA | 25 | 13 | - |
| Usfs Hell Hole | Georgetown, CA | 25 | 4 | - |
| Applegate Station | Roseville, CA | 25 | 18 | - |
| Usfs Hampshire Rocks Campground | Nevada City, CA | 25 | 5 | - |
| Everybody's Inn | Foresthill, CA | 25 | 50 | - |
| Usfs Robinson Flat | Nevada City, CA | 25 | 4 | - |
| Usfs Goose Meadows | Nevada City, CA | 25 | 2 | - |
| Washoe Heights Water Association | Tahoe City, CA | 25 | 0 | - |
| Usfs Granite Flat Campground | Nevada City, CA | 25 | 2 | - |
| Lodgepole Campground | Auburn, CA | 25 | 3 | - |
| Eastern Regional Sanitary Landfill Water | Auburn, CA | 25 | 13 | - |
| Bear Valley, Sierra Discovery Trail | Auburn, CA | 25 | 0 | - |
| Kidd Lake | Auburn, CA | 25 | 3 | - |
| Northstar at Tahoe Comstock Water System | Truckee, CA | 25 | 11 | - |
| Kilner Park | Tahoe City, CA | 25 | 0 | - |
| Hidden Falls | Loomis, CA | 25 | 10 | - |
| Kingvale H2o | Emigrant Gap, CA | 25 | 4 | - |
| Wake Island Water System | Pleasant Grove, CA | 25 | 2 | - |
| Stephens Ranch LLC Aqua | Lincoln, CA | 25 | 0 | - |
| Riego Market | Elverta, CA | 25 | 0 | - |
| Morgan Oaks Eternal Preserve | Rocklin, CA | 25 | 2 | - |
| Hillenbrand Farmhaus Brewery | Newcastle, CA | 25 | 12 | - |
| Ciotti Cellars | Lincoln, CA | 25 | 18 | - |
| Fowler Nursery | Lincoln, CA | 25 | 0 | - |
| Gonzalez Water System | Cromberg, CA | 25 | 5 | - |
| Pnf Gansner Bar Cg / Work Center | Quincy, CA | 25 | 9 | - |
| Cromberg Spring Water Assn | Oroville, CA | 25 | 53 | - |
| Silvertip Springs Water System | Clipper Mills, CA | 25 | 6 | - |
| Vagabond Resort | Lake Amanor, CA | 25 | 4 | - |