Public Water Systems
7,249 active water systems in CA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| LOS ANGELES CWWD 40, R 24,27,33-PEARBLSM | ALHAMBRA, CA | 11,509 | 2 | Detected |
| CITY OF BELL GARDENS | DOWNEY, CA | 11,437 | 2 | Detected |
| MENDOTA, CITY OF | MENDOTA, CA | 11,404 | 29 | Clean |
| EDWARDS AFB - MAIN BASE | EDWARDS AFB, CA | 11,316 | 23 | Detected |
| SCOTTS VALLEY WATER DISTRICT | SCOTTS VALLEY, CA | 11,197 | 21 | Detected |
| EXETER, CITY OF | EXETER, CA | 11,169 | 38 | — |
| CITY OF ANDERSON | ANDERSON, CA | 11,147 | 11 | Clean |
| CAL-WATER SERVICE CO.-OROVILLE | SAN JOSE, CA | 11,106 | 4 | Detected |
| TUD - SONORA/JAMESTOWN WATER SYSTEM | SONORA, CA | 11,054 | 14 | Detected |
| CASITAS MUNICIPAL WATER DIST | OAK VIEW, CA | 11,005 | 20 | Detected |
| SIERRA MADRE-CITY, WATER DEPT. | SIERRA MADRE, CA | 11,000 | 26 | Clean |
| SONOMA STATE UNIVERSITY | ROHNERT PARK, CA | 10,986 | 22 | Detected |
| HEALDSBURG, CITY OF | HEALDSBURG, CA | 10,985 | 11 | Detected |
| DEL ORO WATER CO.-PARADISE PINES | CHICO, CA | 10,940 | 16 | — |
| LAWRENCE LIVERMORE NATIONAL LAB SITE 200 | LIVERMORE, CA | 10,870 | 0 | Clean |
| GSWC - WILLOWBROOK | ANAHEIM, CA | 10,747 | 2 | Detected |
| CALIFORNIA INSTITUTION FOR MEN | CHINO, CA | 10,667 | 35 | Clean |
| CITY OF SHASTA LAKE | SHASTA LAKE, CA | 10,657 | 3 | Clean |
| CALIFORNIA WATER SERVICE CO. - DIXON | SAN JOSE, CA | 10,623 | 3 | Detected |
| CITY OF RIO VISTA | RIO VISTA, CA | 10,489 | 13 | Detected |
| PLUMAS LAKE | OLIVEHURST, CA | 10,464 | 4 | Clean |
| CLOVERDALE, CITY OF | CLOVERDALE, CA | 10,398 | 24 | Clean |
| FARMERSVILLE, CITY OF | FARMERSVILLE, CA | 10,243 | 28 | Clean |
| SHASTA DISTRICT FAIR | ANDERSON, CA | 10,200 | 36 | — |
| SOUTH MESA WC | CALIMESA, CA | 10,108 | 14 | Detected |
| SCWA - ARDEN PARK VISTA | SACRAMENTO, CA | 10,101 | 4 | Detected |
| VALLEY WATER CO. | LA CANADA FLINTRIDGE, CA | 10,070 | 4 | Detected |
| ANZA VALLEY BUSINESS | MOUNTAIN CENTER, CA | 10,014 | 11 | — |
| CAL-AM WATER COMPANY - EAST PASADENA | ROSEMEAD, CA | 9,949 | 12 | Clean |
| GREEN VALLEY CAMPGROUND | SAN BERNARDINO, CA | 9,939 | 0 | — |
| LAKE HENSHAW RESORT INC. | SANTA YSABEL, CA | 9,913 | 30 | — |
| CCWD - JENNY LIND | SAN ANDREAS, CA | 9,861 | 11 | Clean |
| GOLDEN HILLS CSD | TEHACHAPI, CA | 9,857 | 13 | Detected |
| BLYTHE - CITY OF | BLYTHE, CA | 9,798 | 23 | Detected |
| WINTON WATER & SANITARY DIST | WINTON, CA | 9,745 | 15 | Clean |
| SAN GABRIEL VALLEY WATER CO-MONTEBELLO 1 | EL MONTE, CA | 9,630 | 9 | Clean |
| CITY OF ORANGE COVE | ORANGE COVE, CA | 9,525 | 37 | Clean |
| MYOMA DUNES MUTUAL WATER COMPANY | BERMUDA DUNES, CA | 9,445 | 1 | Clean |
| GEORGETOWN DIVIDE PUD | GEORGETOWN, CA | 9,434 | 4 | Clean |
| HURON, CITY OF | HURON, CA | 9,306 | 117 | Clean |
| LA CANADA IRRIGATION DIST. | LA CANADA, CA | 9,300 | 5 | Detected |
| CITY OF LIVE OAK | LIVE OAK, CA | 9,285 | 24 | Detected |
| CALIFORNIA STATE FAIR | SACRAMENTO, CA | 9,280 | 8 | Detected |
| PLACERVILLE, CITY OF - MAIN | PLACERVILLE, CA | 9,224 | 5 | Clean |
| RUBIO CANON LAND & WATER ASSOCIATION | ALTADENA, CA | 9,215 | 3 | Detected |
| PARADISE IRRIGATION DISTRICT | PARADISE, CA | 9,142 | 21 | Clean |
| NEVADA ID - LAKE WILDWOOD | GRASS VALLEY, CA | 9,108 | 0 | Clean |
| TEHACHAPI, CITY OF | TEHACHAPI, CA | 9,094 | 24 | Clean |
| EBRPD - DEL VALLE REGIONAL PARK | OAKLAND, CA | 9,024 | 28 | — |
| BRECON ESTATE | TEMPLETON, CA | 9,012 | 0 | — |