Public Water Systems
7,249 active water systems in CA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| JULIAN COMMUNITY SERVICES DISTRICT | JULIAN, CA | 1,517 | 175 | — |
| PEARSONVILLE WATER SYSTEM | BISHOP, CA | 1,515 | 13 | — |
| LITTLE POTATO SLOUGH MUTUAL | LODI, CA | 1,510 | 29 | — |
| RICHARDSON GROVE SP-STATE PARKS | EUREKA, CA | 1,509 | 5 | — |
| BUTTONWILLOW CWD | BUTTONWILLOW, CA | 1,508 | 19 | — |
| MARIANA RANCHOS CWD | APPLE VALLEY, CA | 1,502 | 20 | — |
| NOJOQUI FALLS COUNTY PARK | SANTA MARIA, CA | 1,502 | 10 | — |
| AERA ENERGY-LLC | MCKITTRICK, CA | 1,500 | 16 | — |
| CAL TRANS BUTTONWILLOW SFTY RSRA | FRESNO, CA | 1,500 | 26 | — |
| CAMP VERDUGO OAKS BOYSCOUTS | ARCADIA, CA | 1,500 | 13 | — |
| LYNWOOD PARK MUTUAL WATER CO. | COMPTON, CA | 1,500 | 25 | — |
| U.S. ARMY CORPS-LAKE MENDO (KYEN CMPGRD) | UKIAH, CA | 1,500 | 6 | — |
| DOLE ATWATER PLANT | ATWATER, CA | 1,500 | 18 | — |
| PALISADES TAHOE 8200 WATER SYSTEM | OLYMPIC VALLEY, CA | 1,500 | 54 | Clean |
| ANTLERS SHELL / SUBWAY | LAKEHEAD, CA | 1,500 | 17 | — |
| SPRINGVILLE PUD | SPRINGVILLE, CA | 1,500 | 25 | — |
| GOLDEN STATE WATER COMPANY - EDNA | HAWTHORNE, CA | 1,493 | 2 | — |
| DEL REY COMMUNITY SERV DIST | DEL REY, CA | 1,491 | 20 | — |
| MIDWAY HEIGHTS C. W. D. | MEADOW VISTA, CA | 1,491 | 82 | — |
| OAKWOOD LAKE WATER DISTRICT-SUBDIVISION | STOCKTON, CA | 1,479 | 12 | — |
| GUADALUPE VALLEY MID | BRISBANE, CA | 1,472 | 8 | Detected |
| LOS MOLINOS COMM. SERVICES DIST. | LOS MOLINOS, CA | 1,450 | 121 | — |
| INVERNESS PUBLIC UTILITY DIST | INVERNESS, CA | 1,445 | 99 | — |
| SUBURBAN WATER SYSTEMS-COVINA KNOLLS | COVINA, CA | 1,437 | 4 | — |
| VENTURA CWWD NO. 19 - SOMIS | MOORPARK, CA | 1,429 | 2 | — |
| TAHOE KEYS WATER COMPANY | SOUTH LAKE TAHOE, CA | 1,420 | 17 | — |
| CSP-MACKERRICHER STATE PARK | DUNCANS MILLS, CA | 1,416 | 10 | — |
| LEAVITT CAMPGROUND | SPARKS, CA | 1,405 | 28 | — |
| ALAMEDA POINT | OAKLAND, CA | 1,400 | 0 | — |
| USFS/DINKEY CREEK CAMPGROUND | CLOVIS, CA | 1,400 | 27 | — |
| HIGHLAND MOBILE HOME PARK | BISHOP, CA | 1,400 | 5 | — |
| CALTRANS-COLLIER REST STOP | REDDING, CA | 1,400 | 2 | — |
| WEST ALMANOR M.W.C. | CHESTER, CA | 1,394 | 6 | — |
| CALIFORNIA WATER SERVICE CO.-LANCASTER | SAN JOSE, CA | 1,387 | 6 | Detected |
| LASSEN COMMUNITY COLLEGE DIST. | SUSANVILLE, CA | 1,380 | 7 | — |
| LEBEC COUNTY WATER DISTRICT | LEBEC, CA | 1,379 | 125 | — |
| GRIZZLY FLATS COMMUNITY SERVIC | GRIZZLY FLATS, CA | 1,374 | 9 | — |
| HYDESVILLE CO. W.D. | HYDESVILLE, CA | 1,366 | 20 | — |
| APTOS HIGH SCHOOL | WATSONVILLE, CA | 1,348 | 14 | — |
| GARDEN ACRES MUTUAL WATER CO | OXNARD, CA | 1,335 | 16 | — |
| CITY OF MODESTO - DEL RIO | MODESTO, CA | 1,327 | 7 | — |
| LOWER LAKE COUNTY WATER DISTRICT | LOWER LAKE, CA | 1,326 | 12 | — |
| USFS - OLD ISABELLA AUXILIARY DAM WS | OVERLAND PARK, CA | 1,320 | 0 | — |
| MCCLOUD C.S.D. | MCCLOUD, CA | 1,317 | 35 | — |
| GRIZZLY LAKE CSD-DELLEKER | PORTOLA, CA | 1,314 | 103 | — |
| RURAL NORTH VACAVILLE WATER DISTRICT | VACAVILLE, CA | 1,313 | 0 | — |
| MISSION SPRINGS CONFERENCE CENTER | SCOTTS VALLEY, CA | 1,310 | 35 | — |
| MIDWAY CITY MUTUAL WC | WESTMINSTER, CA | 1,305 | 32 | — |
| CALTRANS - SHANDON REST STOP | SAN LUIS OBISPO, CA | 1,300 | 10 | — |
| WILLOW CREEK C.S.D. | WILLOW CREEK, CA | 1,298 | 7 | — |