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Browse Water Systems

20,002 public water systems in CA.

Public Water Systems Database

Browse 20,002 EPA-regulated public water systems with identifiers, population served, and water source type. Use the filters below to narrow results by state, system type, or name.

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System Name PWSID State Type Population Served
USFS/RANCHERIA CAMPGROUND CA1000140 California Transient Non-Community 906
SCOTIA CSD CA1210010 California Community 906
DEL ORO WATER CO.-JOHNSON PARK CA4510015 California Community 904
NEWHALL ELEMENTARY SCHOOL CA1900656 California Non-Transient Non-Community 900
RUSSIAN RIVER WC RIO DELL DIS CA4910015 California Community 900
WINDSET FARMS GREENHOUSES CA4200962 California Non-Transient Non-Community 900
CASA LOMA WATER CO, INC. CA1510004 California Community 900
FERN VALLEY WD CA3310040 California Community 900
LONE PINE HIGH SCHOOL CA1400120 California Non-Transient Non-Community 900
FRITO-LAY, INC. WATER SYSTEM CA1502615 California Non-Transient Non-Community 900
CENTER HIGH SCHOOL CA3400371 California Transient Non-Community 900
ROCKWELL INTERNATIONAL CORP CA5610004 California Community 900
GAVIOTA BEACH STATE PARK CA4210302 California Transient Non-Community 900
Mechoopda Casino 090600071 California Non-Transient Non-Community 900
NPS-DORST CG CA5410519 California Transient Non-Community 900
LAKE PARK VILLAGE CONDOMINIUMS MI0002277 California Community 900
HANSEN SCHOOL CA3000816 California Non-Transient Non-Community 900
RIPON CHRISTIAN SCHOOLS CA3901325 California Non-Transient Non-Community 900
DEL MONTE CANNERY #14 CA5100130 California Transient Non-Community 900
USFS/DORABELLE CAMPGROUND CA1000143 California Transient Non-Community 900
BUD ANTLE, LLC-SOLEDAD FACILITY WS CA2702412 California Non-Transient Non-Community 900
DEPT. OF FISH AND GAME CA1010851 California Community 900
CALTRANS-TRINIDAD SB CA1200755 California Transient Non-Community 900
ALBERG WATER SYSTEM CA3900671 California Transient Non-Community 900
ALPINE VILLAGE APARTMENTS CA3700209 California Community 900
VALLEY SPRINGS PUD CA0510010 California Community 900
HORSESHOE BEND REC AREA CA2200033 California Transient Non-Community 900
ROTTEN ROBBIE CA1700727 California Transient Non-Community 899
RANCHO PAUMA MUTUAL WC CA3710012 California Community 899
SO CALIF W CO-GOLDEN WEST GAR CA3010013 California Community 899
NATURAL BRIDGE S.P. BEACH CA4410313 California Transient Non-Community 898
CSP HENRY W. COE STATE PARK CA4310300 California Transient Non-Community 898
PLANTATION ON THE LAKE PARK CA3301943 California Community 897
LAKESIDE SCHOOL CA1502154 California Non-Transient Non-Community 897
JOSHUA TREE NP - COTTONWOOD SPRINGS CA3310501 California Transient Non-Community 895
DEL ORO WATER CO.-LIME SADDLE MARINA CA0405001 California Community 895
WINTERHAVEN WD CA1310009 California Community 892
SOUTH MIDWAY CITY MUTUAL WATER CO. CA3000825 California Community 891
DORRIS, CITY OF CA4710001 California Community 887
VANDALIA SCHOOL CA5400981 California Non-Transient Non-Community 887
HILLSVIEW HOMES CA5010007 California Community 887
JALAMA BEACH PARK CA4200846 California Transient Non-Community 882
VENTURA SCHOOL CA7300311 California Community 882
PSMCSD - SUNNY MESA CA2700773 California Community 880
GRANITE WHISPER CREEK R.V. RESORT LL. FL5224074 California Community 880
SOUTHERN CALIF WATER CO CA1910177 California Community 879
CALIFORNIA WATER SERVICE CO-LEONA VALLEY CA1910243 California Community 878
INYOKERN CSD CA1510036 California Community 878
QUAIL HILL MOBILE HOME PARK CO0121633 California Community 878
CHURCH OF GLAD TIDINGS CA5102009 California Non-Transient Non-Community 878