Browse Water Systems

20,012 public water systems in CA.

Public Water Systems Database

Browse 20,012 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
CAMP TAWONGA CA5500141 California Transient Non-Community 505
COSTAJO ARCO AMPM CA1503687 California Transient Non-Community 505
MOUNTAIN MEADOWS MWC CA2600620 California Community 505
ANGELES SHOOTING RANGES CA1900761 California Transient Non-Community 505
CAPITOL STATE PARKS CA2110309 California Transient Non-Community 504
KRISTA MUTUAL WATER COMPANY CA1500475 California Community 504
CSP - MT TAM THEATRE WELL CA2110301 California Transient Non-Community 504
WHITE LOTUS CA4200949 California Transient Non-Community 503
GREENGATE RANCH & VINEYARDS CA4000833 California Transient Non-Community 503
CSP-STANDISH HICKEY STATE REC AREA CA2310310 California Transient Non-Community 503
CSP - TOMALES BAY ST PARK CA2110303 California Transient Non-Community 503
WHITEWATER PRESERVE CA3301750 California Transient Non-Community 503
CSP-WRIGHTS BEACH STATE PARK CA4910308 California Transient Non-Community 502
PEARLAND ACRES MHP TX0200353 California Community 501
OAKWOOD LAKE RESORT CA3900881 California Community 501
SIERRA TAHOE GRANDVIEW CA0900658 California Transient Non-Community 500
MENDOCINO COUNTY FAIRGROUNDS CA2300950 California Transient Non-Community 500
UOP CA3901170 California Community 500
FRANKLIN ELEMENTARY SCHOOL CA3100071 California Non-Transient Non-Community 500
CAMPO HILLS-COUNTY PUBLIC WORKS WASTEWTR CA3710047 California Community 500
SONOMA TRANSFER STATION CA4901047 California Transient Non-Community 500
ANNETT'S MONO VILLAGE CA2600529 California Transient Non-Community 500
PLACER ELEMENTARY SCHOOL CA3100070 California Non-Transient Non-Community 500
BIG MEADOW TRAILHEAD CA0900527 California Transient Non-Community 500
WILLOWS HIGH SCHOOL CA1100256 California Transient Non-Community 500
BERRYESSA PARK HDQTRS CA2800573 California Transient Non-Community 500
EASTIN ARCOLA SCHOOL CA2000599 California Non-Transient Non-Community 500
CHIMNEY ROCK GOLF COURSE CA2800576 California Transient Non-Community 500
LSID - TONYVILLE CA5410007 California Community 500
WEST PUTNAM SCHOOL - INACTIVE CA5400979 California Non-Transient Non-Community 500
JALAPENOS WATER SYSTEM CA0900522 California Transient Non-Community 500
SAN LORENZO PARK CA2702083 California Transient Non-Community 500
KINGS RIVER ELEMENTARY SCHOOL CA5400624 California Non-Transient Non-Community 500
IMPERIAL COUNTY HOSPITAL CA1300541 California Community 500
GREENAMEYER BROTHERS WATER SY CA2201009 California Community 500
BSA-CAMP WHITSETT CA5401010 California Transient Non-Community 500
IRVINE REGIONAL PARK CA3000770 California Transient Non-Community 500
THE BROKEN BIT CA2000543 California Transient Non-Community 500
CSP-MENDOCINO HEADLANDS-SEA ARCH CA2310308 California Transient Non-Community 500
PALO VERDE UNION ELEMENTARY SCHOOL CA5400519 California Non-Transient Non-Community 500
NPS-DEATH VALLEY-THORNDYKE - INACTIVE CA1410501 California Transient Non-Community 500
EAGLE FALLS CA0900533 California Transient Non-Community 500
TRACT 92 COMMUNITY SERVICES DISTRICT CA5400903 California Community 500
LSID-STRATHMORE SYSTEM CA5410036 California Community 500
MILLPOND RECREATION AREA CA1400047 California Transient Non-Community 500
MORGAN HILL USD-BURNETT SCHOOL CA4300583 California Non-Transient Non-Community 500
CHICO EASTSIDE LITTLE LEAGUE CA0400166 California Transient Non-Community 500
JON P RAPAZZINI CA4300855 California Transient Non-Community 500
TRACT 92 C.S.D. CA5403004 California Community 500
ESCALON UNIFIED SCHOOL DIST CA3901166 California Non-Transient Non-Community 500