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 |
|---|---|---|---|---|
| Chimney Rock Winery | Napa, CA | 122 | 6 | - |
| Cal Am - Security Park | Sacramento, CA | 122 | 0 | - |
| Hollister SDA Christian School | Hollister, CA | 122 | 1 | - |
| Boisset - Buena Vista Winery | Sonoma, CA | 122 | 4 | - |
| Nevada ID - Smartsville | Grass Valley, CA | 122 | 4 | - |
| Camp Elk | Wrightwood, CA | 121 | 8 | - |
| River Oasis | Blythe, CA | 121 | 75 | - |
| Sierra Moon Mutual Water Company | Chico, CA | 120 | 42 | - |
| Sherman Acres Mutual Water Asn | Bear Valley, CA | 120 | 16 | - |
| American Legion Post #376 | Glencoe, CA | 120 | 52 | - |
| Gas N Save | Oakley, CA | 120 | 44 | - |
| Concord Mt Diablo Trailride Assoc. | Clayton, CA | 120 | 29 | - |
| Margaret Keating Main. & Oper. | Crescent City, CA | 120 | 15 | - |
| New Auberry Water Association | Auberry, CA | 120 | 17 | - |
| Las Palmas Mobile Home Park | Eureka, CA | 120 | 19 | - |
| Millers Hill School | Shingle Springs, CA | 120 | 29 | - |
| Echo Lake Camp | Berkeley, CA | 120 | 40 | - |
| Kings Canyon Mobile Home Park | Rancho Sante Fe, CA | 120 | 105 | - |
| Lower Deer Creek Tract | Santa Ana, CA | 120 | 33 | - |
| Church of the Redeemer | Selma, CA | 120 | 15 | - |
| National Cement Co.-Lebec Plant | Encino, CA | 120 | 43 | - |
| Lakeview Ranchos Mutual Water Company | Weldon, CA | 120 | 152 | - |
| Sugar Pine Homeowners Assoc | Oakhurst, CA | 120 | 48 | - |
| Cedar Spring Retreat Center | North Fork, CA | 120 | 109 | - |
| Csp - Marconi Conference Center | Marshall, CA | 120 | 0 | - |
| Luna Trattoria | Mendocino, CA | 120 | 1 | - |
| Longview Mennonite School | Livingston, CA | 120 | 48 | - |
| John B. Sanfilippo & Son, Inc. | Gustine, CA | 120 | 3 | - |
| Cdf-Parlin Fork Conservation Camp | Fort Bragg, CA | 120 | 25 | - |
| Cal Fire-Devil's Garden Camp | Alturas, CA | 120 | 10 | - |
| Pine Grove Campground | Bishop, CA | 120 | 15 | - |
| Dolan RD MWC | Moss Landing, CA | 120 | 47 | - |
| Pesante RD WS #02 | Salinas, CA | 120 | 27 | - |
| Bluffs WS | Salinas, CA | 120 | 9 | - |
| Twin Ridges Oak Tree School | Nevada City, CA | 120 | 33 | - |
| Caltrans-Chester Safety Rest Stop | Redding, CA | 120 | 6 | - |
| Pnf Kenzie Ravine 1 & 2 | Quincy, CA | 120 | 11 | - |
| Lake Cove Resort | Yuba City, CA | 120 | 4 | - |
| Cherry Valley Ranch LLC | Beaumont, CA | 120 | 35 | - |
| Oak Haven Association | Temecula, CA | 120 | 22 | - |
| Dunneville Estates CSA #50 | Hollister, CA | 120 | 0 | - |
| Golden State Water Desert View | Apple Valley, CA | 120 | 3 | - |
| Institute of Mental Physics | Joshua Tree, CA | 120 | 67 | - |
| Johnson Valley Community Center | Johnson Valley,, CA | 120 | 4 | - |
| Quiet Oaks Mobile Home Park | Stockton, CA | 120 | 199 | - |
| Big Wheel Mobile Home Park | Stockton, CA | 120 | 21 | - |
| Corti Water System | San Leandro, CA | 120 | 2 | - |
| Lodi Usd-Turner Academy | Lodi, CA | 120 | 44 | - |
| Madonna Inn Water Company | San Luis Obispo, CA | 120 | 17 | - |
| San Marcos Mutual Water Company | Santa Barbara, CA | 120 | 10 | - |