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 |
|---|---|---|---|---|
| Mariposa District Fairground | Mariposa, CA | 200 | 2 | - |
| Yosemite Nps-Arch Rock | Yosemite Np, CA | 200 | 2 | - |
| New Life Christian Fellowship | Mariposa, CA | 200 | 6 | - |
| Pomo Campground | Fort Bragg, CA | 200 | 3 | - |
| Maccallum House Inn | Mendocino, CA | 200 | 10 | - |
| U.S. Army Corps-Lake Mendo (Marina Site) | Ukiah, CA | 200 | 4 | - |
| Black Oak Facility | Laytonville, CA | 200 | 12 | - |
| Mdf-Blue Lake Cg | Alturas, CA | 200 | 18 | - |
| Usfs Lee Vining Ranger Station | Bishop, CA | 200 | 19 | - |
| Psmcsd - Springfield WS | Royal Oaks, CA | 200 | 253 | - |
| Bell Wine Cellars | Napa, CA | 200 | 0 | - |
| Tucker Acres Mutual Water Co. | Calistoga, CA | 200 | 35 | - |
| Tpwc Dba the Prisoner Wine Company | St Helena, CA | 200 | 6 | - |
| Welcome Grange Hall | Napa, CA | 200 | 35 | - |
| Putah Canyon Campground | Napa, CA | 200 | 39 | - |
| Domaine Chandon | Yountville, CA | 200 | 41 | - |
| The Ranch Winery | St. Helena, CA | 200 | 19 | - |
| Sierra Energy #3 | Rocklin, CA | 200 | 32 | - |
| Tahoe City PUD - Timberland | Tahoe City, CA | 200 | 3 | - |
| Live Oak Waldorf School | Meadow Vista, CA | 200 | 13 | - |
| Community of the Great Commission | Foresthill, CA | 200 | 37 | - |
| Palisades Water System | Auburn, CA | 200 | 0 | - |
| Caltrans-L.t. Davis Reststop | Redding, CA | 200 | 34 | - |
| Waltons Grizzly Lodge | Portola, CA | 200 | 0 | - |
| Bucks Lakeshore Resort | Quincy, CA | 200 | 15 | - |
| Blairsden Water Users Assn | Blairsden, CA | 200 | 57 | - |
| Idyllwild Brew Pub | Idyllwild, CA | 200 | 0 | - |
| Harmony Farms Event Center | Murrietta, CA | 200 | 0 | - |
| Vieira's Resort, Inc | Isleton, CA | 200 | 97 | - |
| Virgin Sturgeon | Sacramento, CA | 200 | 5 | - |
| Walnut Grove Elementary School | Rio Vista, CA | 200 | 11 | - |
| Holiday Mobile Village | Menlo Park, CA | 200 | 12 | - |
| 6200 Franklin, LLC (Sws) | Mill Valley, CA | 200 | 12 | - |
| Sloughhouse Inn | Los Angeles, CA | 200 | 2 | - |
| Scribner Bend Vineyard | Sacramento, CA | 200 | 0 | - |
| Gordon Acres Water Co | Lucerne Valley, CA | 200 | 26 | - |
| Camp Osito Rancho | Inglewood, CA | 200 | 6 | - |
| Forest Lawn Scout Reservation | Cedar Glen, CA | 200 | 0 | - |
| Woodcraft Rangers | Los Angeles, CA | 200 | 3 | - |
| Louis a. Stelzer County Park | San Diego, CA | 200 | 19 | - |
| Hodges Reservoir Recreation Area | Lakeside, CA | 200 | 9 | - |
| Rancho Estates Mutual Water Co. | Pauma Valley, CA | 200 | 63 | - |
| Pine Valley Trailer Park | Costa Mesa, CA | 200 | 9 | - |
| City of San Diego, Camp Morena | La Mesa, CA | 200 | 8 | - |
| Daley Ranch | Escondido, CA | 200 | 4 | - |
| Tahama Village Mobile Home Park | Oakdale, CA | 200 | 12 | - |
| Villa Cerezos | Los Altos, CA | 200 | 19 | - |
| Paradise Point Marina | Stockton, CA | 200 | 9 | - |
| Banta Elementary School | Banta, CA | 200 | 5 | - |
| Morada Chevron Fast N Easy #60* | Benicia, CA | 200 | 32 | - |