Browse Water Systems

19,626 public water systems in CA.

Public Water Systems Database

Browse 19,626 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
PONDEROSA BASIN MUTUAL WTR CO CA2210002 California Community 798
DAGGETT COMM SVCS DIST CA3600086 California Community 795
TAHOE CITY PUD - TAHOE CEDARS CA3110013 California Community 793
BIG PINE CSD CA1410006 California Community 792
COLE ELEMENTARY SCHOOL CA1000397 California Non-Transient Non-Community 787
DOWNIEVILLE PUBLIC U.D. CA4610002 California Community 783
JUBILEE MWC CA3600139 California Community 782
CEDAR CREEK CAMPGROUND CA1502669 California Transient Non-Community 780
COUNTY WATER COMPANY CA1900582 California Community 780
SAN LUIS HILLS CA2400209 California Community 779
LAKE OF THE WOODS MWC CA1510023 California Community 779
MOUNTAIN MESA WC CA1510042 California Community 777
STERLING MUTUAL WATER COMPANY CA1900163 California Community 775
FRESNO COUNTY WATER WORKS CA1010050 California Community 774
HIDDEN SPRINGS CAMPGROUND CA1900770 California Transient Non-Community 770
JIREH PACKING GROUP - CUTLER CA5403145 California Non-Transient Non-Community 770
YUIMA MUNICIPAL WATER DISTRICT IDA CA3700938 California Community 769
RIVERSIDE CSA #122-MESA VERDE CA3310028 California Community 766
WHITEHAWK RANCH MWC CA3200102 California Community 765
CAL AM WATER COMPANY - RYAN RANCH CA2701466 California Non-Transient Non-Community 764
MEADOWCREEK MUTUAL WATER COMPANY CA1400111 California Community 764
PINE HILLS MUTUAL WATER COMPANY CA3700905 California Community 760
CENTRAL HIGH SCHOOL WEST CA1000217 California Non-Transient Non-Community 758
ODD FELLOWS RECREATION CLUB CA4910026 California Community 757
HURKEY CREEK - RIV. CO. PARKS CA3301564 California Transient Non-Community 756
PALI OVERNIGHT ADVENTURES CA3600597 California Non-Transient Non-Community 754
WOODSHIRE EAST MOBILE HOME PARK LTD CO0103853 California Community 751
FOLSOM LAKE SRA - PENINSULA CAMPGROUND CA0910300 California Transient Non-Community 751
PIONEER ELEMENTARY SCHOOL CA1600011 California Non-Transient Non-Community 750
STATE HOSPITAL - #3 CA3900986 California Community 750
EAST FORK CAMPGROUND CA2600608 California Transient Non-Community 750
CLOVIS HILLS COMMUNITY CHURCH CA1000556 California Non-Transient Non-Community 750
MADERA COMMUNITY COLLEGE CA2000695 California Non-Transient Non-Community 750
RIVERDALE VILLAGE CA1500452 California Community 750
MAGALIA COUNTY WATER DISTRICT CA0400009 California Community 750
LOS ALAMOS COMMUNITY SERVICES CA4200535 California Community 750
SANTA BARBARA BUSINESS PARK CA4200710 California Non-Transient Non-Community 750
YOSEMITE VIEW LODGE CA2210926 California Non-Transient Non-Community 750
USFS/DEER CREEK CAMPGROUND CA1000147 California Transient Non-Community 750
TAHOE PARK WATER COMPANY CA3110018 California Community 750
CVUSD, OASIS SCHOOL *OOB* CA3301152 California Non-Transient Non-Community 750
BEACON BAR AND LIQUORS CA1502001 California Transient Non-Community 750
FOOTHILL ELEMENTARY SCHOOL CA1000476 California Non-Transient Non-Community 750
DIXON HOUSING AUTHORITY MIGRAN CA4800607 California Transient Non-Community 750
LATTER DAY SAINTS CHURCH (L.D.S. CHURCH) CA5000450 California Non-Transient Non-Community 750
LISA J MAILS ELEM SCHOOL- WATER OOB CA3301122 California Non-Transient Non-Community 750
CON AGRA CA5000260 California Non-Transient Non-Community 750
VAN DIEST WATER COMPANY CA1910229 California Community 750
VISTA VILLAGE MHP CO0107810 California Community 750
SHASTA FOREST VILLAGE M.W.C. CA4510009 California Community 750