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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.

Clear
System Name PWSID State Type Population Served
RIO MANOR MUTUAL WATER CO CA5610035 California Community 983
CASITAS MUNICIPAL WATER DIST. CA5610067 California Community 983
SULTANA COMMUNITY SERVICES DISTRICT CA5400824 California Community 983
APPLE VALLEY HEIGHTS CWD CA3600009 California Community 983
CITY OF LOYALTON CA4610001 California Community 983
CALTRANS PHILLIP S. RAINE SFTY RSRA NB CA5401045 California Transient Non-Community 980
CAL AM WATER COMPANY - AMBLER PARK CA2710006 California Community 980
FRESNO COUNTY WATER WORKS CA1010038 California Community 977
NYELAND ACRES MUTUAL WATER CO CA5602111 California Community 975
CVUSD, WESTSIDE SCHOOL CA3301153 California Non-Transient Non-Community 975
RICHARD A. MCGEE TRAINING CENTER CA3410802 California Non-Transient Non-Community 975
LANTANA CASCADE MHP FL4504476 California Community 975
DESERT LAKE COMM SERV DIST CA1510027 California Community 968
SANTA LUCIA PRESERVE WS CA2702521 California Community 966
BERENDA SCHOOL CA2000730 California Non-Transient Non-Community 965
SAN JOAQUIN COUNTY - THORNTON CA3910009 California Community 964
LAKE PIRU PARK - UWCD CA5601706 California Transient Non-Community 960
YCCD-MODESTO JUNIOR COLLEGE-WEST CAMPUS CA5000135 California Non-Transient Non-Community 960
Running Creek Casino Water System (Habematolel) 090605000 California Non-Transient Non-Community 960
NEVADA ID - CASCADE SHORES CA2910007 California Community 959
FRESNO COUNTY WATER WORKS CA1010043 California Community 959
BEAN HOLLOW COMFORT STATION CA4110305 California Transient Non-Community 958
KINGS ROW MANUFACTURED HOME COMMUNITY TX1010680 California Community 951
ST MARYS HIGH SCHOOL CA3901209 California Non-Transient Non-Community 950
Augustine Casino 090605142 California Non-Transient Non-Community 950
Wadsworth 093200169 California Community 950
SUN GARDEN PACKING CO. CA4300911 California Non-Transient Non-Community 950
GATEHOUSE TASTING ROOM AT BIEN NACIDO CA4200981 California Transient Non-Community 950
LEAVITT LAKE CSD CA1810004 California Community 950
LAWSON S LANDING CA2110008 California Community 946
LAKE ALPINE CAMP GROUND CA0202538 California Transient Non-Community 945
KNIGHTS LANDING SVC. DIST. CA5710004 California Community 944
DEL ORO CALIFORNIA PINES DISTRICT CA5410034 California Community 944
WESTFIELD GARDEN MOBILE HOME PARK TX1011947 California Community 942
DIVISADERO JR HIGH CA5400855 California Transient Non-Community 941
ROSAMOND SCHOOL WATER SYSTEM CA1502231 California Non-Transient Non-Community 940
SUNDALE UNION SCHOOL CA5400714 California Non-Transient Non-Community 930
CALIFORNIA WATER SERVICE CO-LAKE HUGHES CA1910242 California Community 929
PSMCSD - NORMCO CA2700511 California Community 928
FAIRVIEW BEACH/POT. LANDING VA6099250 California Community 928
JACOBY CREEK CWD CA1210021 California Community 924
CAMANCHE NORTH SHORE INC. CA0310008 California Community 922
CISCO GROVE CAMPGROUND & RV PARK CA3106501 California Transient Non-Community 920
CUESTA LA HONDA GUILD INC CA4110012 California Community 915
EL CAPITAN BEACH STATE PARK CA4210304 California Transient Non-Community 915
CITY OF MODESTO - GRAYSON CA5010033 California Community 914
RANCHO SAN JOAQUIN MWC CA3500581 California Community 914
JOJOBA HILLS SKP RESORT, INC. CA3301385 California Non-Transient Non-Community 912
PINON PINES MWC CA1510054 California Community 908
KINGS RIVER HARDWICK SCHOOL CA1600015 California Non-Transient Non-Community 908