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 |
|---|---|---|---|---|
| Pacific Coast Energy Company | Orcutt, CA | 50 | 0 | - |
| Petros Winery | Los Olivos, CA | 50 | 1 | - |
| The Rainbow Junction Water System | Livermore, CA | 50 | 14 | - |
| Hkn LLC | San Jose, CA | 50 | 6 | - |
| Henry W Coe State Park - Dowdy Ranch | San Juan Bautista, CA | 50 | 0 | - |
| Ridgeview Estates MWC | Boulder Creek, CA | 50 | 14 | - |
| Sunny Acres MWC | Santa Cruz, CA | 50 | 0 | - |
| Kitayama Brothers | Watsonville, CA | 50 | 3 | - |
| Burney Falls Resort | Burney, CA | 50 | 15 | - |
| Midway Mobilehome Park | Ojai, CA | 50 | 7 | - |
| McGee's Corner Saloon | Anderson, CA | 50 | 7 | - |
| Juan Mean Burrito Water System | Redding, CA | 50 | 8 | - |
| New Age Church of Being-Sierra Hot Spr. | Sierraville, CA | 50 | 11 | - |
| Delphic Elementary School | Montague, CA | 50 | 26 | - |
| Dollar General Store - Weed | Grass Valley, CA | 50 | 0 | - |
| Western Railway Museum | Suisun City, CA | 50 | 4 | - |
| Twin Hills Vineyard | Sebastopol, CA | 50 | 6 | - |
| Athena Terrace Mutual Water Company | Santa Rosa, CA | 50 | 22 | - |
| Sonoma West Holdings North Plant | Sebastopol, CA | 50 | 2 | - |
| Kenwood Vineyards and Winery | Sonoma, CA | 50 | 5 | - |
| Fremont Diner | Sonoma, CA | 50 | 31 | - |
| Bartholomew Foundation | Sonoma, CA | 50 | 2 | - |
| Michel-Schlumberger Fine Wine Estate | Healdsburg, CA | 50 | 14 | - |
| Gray Water System | Santa Rosa, CA | 50 | 4 | - |
| Dry Creek Vineyard | Healdsburg, CA | 50 | 4 | - |
| Gravenstein Business Park | San Anselmo, CA | 50 | 5 | - |
| Willowbrook Ale House | Petaluma, CA | 50 | 12 | - |
| Schellville Grill | Sonoma, CA | 50 | 51 | - |
| Adobe Christian Church | Petaluma, CA | 50 | 14 | - |
| Blue Heron Restaurant | Duncans Mills, CA | 50 | 25 | - |
| Graton Mutual Water System | Rohnert Park, CA | 50 | 14 | - |
| Carneros Warehousing | Sonoma, CA | 50 | 21 | - |
| Wildwood Retreat | Guerneville, CA | 50 | 11 | - |
| S & W Warehousing, LLC | Sonoma, CA | 50 | 2 | - |
| Keller Estate Winery | Petaluma, CA | 50 | 2 | - |
| Soda Rock Winery | Geyserville, CA | 50 | 2 | - |
| Port Sonoma Marina | Petaluma, CA | 50 | 0 | - |
| Sebastopol Vineyards | Sebastopol, CA | 50 | 11 | - |
| Merriam Winery | Boxford, CA | 50 | 1 | - |
| Sonoma County Parks-Riverfront Park | Santa Rosa, CA | 50 | 0 | - |
| Laura Chenel's Chevre Inc. | Sonoma, CA | 50 | 6 | - |
| Fort Ross Vineyards | Piedmont, CA | 50 | 0 | - |
| Capital Lumber Company | Healdsburg, CA | 50 | 4 | - |
| Cast Estate Vineyards & Cellars | Geyserville, CA | 50 | 0 | - |
| Chaos Vineyards, LLC. | Healdsburg, CA | 50 | 0 | - |
| Cobles Corner | Hughson, CA | 50 | 90 | - |
| Brethren Heritage School, Inc | Modesto, CA | 50 | 24 | - |
| One Stop WS | San Jose, CA | 50 | 25 | - |
| Rbvon | Westley, CA | 50 | 45 | - |
| Tierra Buena MHP #1 | Zamora, CA | 50 | 28 | - |