Public Water Systems
7,249 active water systems in CA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| AWA, IONE | SUTTER CREEK, CA | 7,227 | 22 | Clean |
| CITY OF WINTERS | WINTERS, CA | 7,115 | 8 | Detected |
| LOS OSOS COMMUNITY SERVICES DISTRICT | LOS OSOS, CA | 7,086 | 3 | Detected |
| LAKE ARROWHEAD CSD | LAKE ARROWHEAD, CA | 7,038 | 0 | Detected |
| SANTA YNEZ RIVER WATER CONS. DIST. ID#1 | SANTA YNEZ, CA | 7,022 | 27 | Detected |
| CHERRY AUCTION | FRESNO, CA | 7,000 | 10 | — |
| PETER PITCHESS HONOR RANCHO DETN. CTR | CASTAIC, CA | 7,000 | 9 | Detected |
| ARROWHEAD REGIONAL MEDICAL CENTER | COLTON, CA | 7,000 | 4 | — |
| GOLDEN STATE WC - COWAN HEIGHTS | ANAHEIM, CA | 6,997 | 1 | Detected |
| HEBER PUBLIC UTILITY DISTRICT | HEBER, CA | 6,979 | 51 | Detected |
| FORT BRAGG, CITY OF | FORT BRAGG, CA | 6,919 | 12 | Clean |
| NEVADA ID - LAKE OF PINES | GRASS VALLEY, CA | 6,870 | 0 | Clean |
| NEVADA ID - NORTH AUBURN | GRASS VALLEY, CA | 6,870 | 0 | Clean |
| OJAI WATER SYSTEM | OAK VIEW, CA | 6,801 | 4 | Detected |
| CALTRANS, CACTUS CITY REST AREA | SAN BERNARDINO, CA | 6,800 | 26 | — |
| BEALE AIR FORCE BASE | BEALE AFB, CA | 6,785 | 25 | Clean |
| FORESTHILL PUBLIC UTILITY DIST | FORESTHILL, CA | 6,782 | 2 | Clean |
| NUEVO WATER COMPANY | NUEVO, CA | 6,733 | 16 | Detected |
| JOSHUA BASIN WATER DISTRICT | JOSHUA TREE, CA | 6,640 | 9 | Detected |
| CHINA LAKE NAVAL AIR WEAPONS STATION | CHINA LAKE, CA | 6,600 | 32 | Detected |
| PSMCSD - PAJARO | ROYAL OAKS, CA | 6,500 | 5 | Clean |
| LAKE OF THE SPRINGS | OREGON HOUSE, CA | 6,500 | 1 | Clean |
| MADERA VALLEY WATER COMPANY | MADERA, CA | 6,494 | 15 | Clean |
| YMCA CAMP WHITTLE | FAWNSKIN, CA | 6,466 | 15 | — |
| CITY OF COLUSA | COLUSA, CA | 6,447 | 8 | Detected |
| LOS ANGELES CWWD 36-VAL VERDE | ALHAMBRA, CA | 6,376 | 2 | Clean |
| HOLTVILLE, CITY OF | HOLTVILLE, CA | 6,355 | 56 | Detected |
| MAYWOOD MUTUAL WATER CO. #2 | MAYWOOD, CA | 6,349 | 0 | Detected |
| HELENDALE COMMUNITY SERVICE DISTRICT | HELENDALE, CA | 6,347 | 51 | Detected |
| NORTH TAHOE PUD - MAIN | TAHOE VISTA, CA | 6,321 | 12 | Clean |
| CALAVERAS PUD | SAN ANDREAS, CA | 6,286 | 18 | Clean |
| PURISSIMA HILLS WATER DISTRICT | LOS ALTOS HILLS, CA | 6,245 | 17 | Clean |
| HIDDEN VALLEY LAKE CSD | HIDDEN VALLEY LAKE, CA | 6,235 | 2 | Detected |
| NORTHROP GRUMMAN CORP. | PALMDALE, CA | 6,214 | 19 | Detected |
| GOLDEN STATE WATER CO - APPLE VLY SOUTH | APPLE VALLEY, CA | 6,208 | 1 | Detected |
| CUTLER PUD | CUTLER, CA | 6,200 | 45 | Clean |
| WILLITS, CITY OF | WILLITS, CA | 6,175 | 28 | Clean |
| CITY OF INDUSTRY WATERWORKS SYSTEMS | LA PUENTE, CA | 6,158 | 7 | Clean |
| CAL TRANS ERRECA REST AREA | STOCKTON, CA | 6,150 | 8 | — |
| SOLVANG WATER DIVISION | SOLVANG, CA | 6,126 | 38 | Detected |
| CITY OF GUSTINE | GUSTINE, CA | 6,110 | 21 | Detected |
| VENTURA RIVER WATER DISTRICT | OJAI, CA | 6,100 | 10 | Detected |
| DINUBA, CITY OF | DINUBA, CA | 6,081 | 36 | Clean |
| MONTARA WATER AND SANITARY DISTRICT | MONTARA, CA | 6,078 | 11 | Clean |
| MAYWOOD MUTUAL WATER CO. #3 | MAYWOOD, CA | 6,059 | 10 | Detected |
| SOLEDAD MISSION WS | SOLEDAD, CA | 6,000 | 70 | — |
| LAKE ALMANOR COUNTRY CLUB MWC | LAKE ALMANOR, CA | 6,000 | 6 | Clean |
| CALTRANS, WHITEWATER REST AREA | SAN BERNARDINO, CA | 6,000 | 22 | — |
| SWEETWATER SPRINGS CWD - GUERNEVILLE | GUERNEVILLE, CA | 6,000 | 7 | Clean |
| BELLFLOWER MUNICIPAL WATER SYSTEM | ROSEMEAD, CA | 5,999 | 8 | Detected |