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 |
|---|---|---|---|---|
| COYOTE VALLEY MUTUAL WATER CO | IMPERIAL, CA | 125 | 18 | — |
| FIRE SUPPRESSION CAMP #19 | LOS ANGELES, CA | 125 | 6 | — |
| RIVER CREEK GOLF CLUB | AHWAHNEE, CA | 125 | 13 | — |
| LAMANUZZI PANTALEO CS DEHY | MADERA, CA | 125 | 16 | — |
| MADERA HISPANIC CHURCH | MADERA, CA | 125 | 9 | — |
| CHATEAU MONTELENA WINERY | CALISTOGA, CA | 125 | 12 | — |
| SIERRA FAMILY MEDICAL CLINIC | NEVADA CITY, CA | 125 | 2 | — |
| TWIN RIDGES GRIZZLY HILL SCHOOL | NEVADA CITY, CA | 125 | 31 | — |
| MALAKOFF DIGGINS SHP | TAHOMA, CA | 125 | 3 | — |
| EMIGRANT GAP MUTUAL WATER CO. | EMIGRANT GAP, CA | 125 | 24 | — |
| DESERT DUNES GOLF CLUB LTD | DESERT HOT SPRINGS, CA | 125 | 51 | — |
| LAKE FULMOR - USFS | SAN BERNARDINO, CA | 125 | 33 | — |
| MATSUDA'S BY GREEN ACRES, LLC | SACRAMENTO, CA | 125 | 27 | — |
| CASTLE MOUNTAIN MINE | HENDERSON, CA | 125 | 7 | — |
| NEW HOPE LANDING GENERAL STORE | SACRAMENTO, CA | 125 | 12 | — |
| ARP MINIMART CORP WS | TRACY, CA | 125 | 16 | — |
| WILKINSON MANOR A-ZONE PWS | STOCKTON, CA | 125 | 3 | — |
| SPANISH LAKES MUTUAL WATER CO | TEMPLETON, CA | 125 | 0 | — |
| PORT SAN LUIS HARBOR DISTRICT | AVILA BEACH, CA | 125 | 1 | — |
| COURTSIDE CELLARS | HEALDSBURG, CA | 125 | 0 | — |
| JARVIS MUTUAL WATER SYSTEM | SANTA CRUZ, CA | 125 | 42 | — |
| OAK RUN ELEMENTARY SCHOOL | OAK RUN, CA | 125 | 20 | — |
| PACKER LAKE LODGE | PROSPECT, CA | 125 | 35 | — |
| SNUG HARBOR RV LP | WALNUT GROVE, CA | 125 | 93 | — |
| FOLEY FAMILY WINES CHATEAU ST. JEAN | SANTA ROSA, CA | 125 | 4 | — |
| LAZY B MOBILEHOME PARK | SAN MATEO, CA | 125 | 22 | — |
| LIBITZKY | ROSEVILLE, CA | 125 | 10 | — |
| GROVER LANDSCAPE WATER SYSTEM | MODESTO, CA | 125 | 2 | — |
| BURNT RANCH SCHOOL | BURNT RANCH, CA | 125 | 11 | — |
| LINDY'S LANDING | REEDLEY, CA | 125 | 23 | — |
| OUTSIDE CREEK SCHOOL | VISALIA, CA | 125 | 21 | — |
| LEGACY PACKING AND COLD STORAGE | DINUBA, CA | 125 | 37 | — |
| PETERS FRUIT FARMS, INC | REEDLEY, CA | 125 | 50 | — |
| TREEHOUSE CALIFORNIA ALMONDS LLC | EARLIMART, CA | 125 | 22 | — |
| FRESH SELECT, LLC | DINUBA, CA | 125 | 28 | — |
| YES CHARTER ACADEMY | OREGON HOUSE, CA | 125 | 55 | — |
| TAHOE CITY PUD - GLENRIDGE | TAHOE CITY, CA | 124 | 0 | — |
| CREEKSIDE CABINS & RV RESORT | HENDERSON, CA | 124 | 18 | — |
| SIERRA WOODS LODGE | WATSONVILLE, CA | 124 | 25 | — |
| E & J GALLO WINERY-SONOMA | HEALDSBURG, CA | 124 | 12 | — |
| BETHEL ISLAND MUTUAL WATER CO | BETHEL ISLAND, CA | 123 | 11 | — |
| OAK KNOLLS MUTUAL WATER COMPANY | LAKE ISABELLA, CA | 123 | 41 | — |
| CLEAR RIDGE WA | BIG SUR, CA | 123 | 44 | — |
| CDFA-MOUNTAIN PASS JPOE AIS | SACRAMENTO, CA | 123 | 2 | — |
| LOCKEFORD MOBILE HOME PARK WTR SYS | CONCORD, CA | 123 | 22 | — |
| CAL FIRE - MOUNTAIN HOME CNSRVTN CAMP | SPRINGVILLE, CA | 123 | 3 | — |
| CWS-GRAND OAKS WATER SYSTEM | SAN JOSE, CA | 122 | 11 | — |
| LONG CANYON WATER COMPANY CORP. | BAKERSFIELD, CA | 122 | 77 | — |
| YOSEMITE BUG HOSTEL | MIDPINES, CA | 122 | 12 | — |
| PLAINSBURG ELEMENTARY SCHOOL | MERCED, CA | 122 | 7 | — |