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
ANGELES SHOOTING RANGES CA1900761 California Transient Non-Community 505
MOUNTAIN MEADOWS MWC CA2600620 California 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
WHITEWATER PRESERVE CA3301750 California Transient Non-Community 503
CSP - TOMALES BAY ST PARK CA2110303 California Transient Non-Community 503
CSP-WRIGHTS BEACH STATE PARK CA4910308 California Transient Non-Community 502
PLASKETT CREEK CAMPGROUNDS WS CA2702562 California Transient Non-Community 501
OAKWOOD LAKE RESORT CA3900881 California Community 501
PEARLAND ACRES MHP TX0200353 California Community 501
SCC P&R, ED LEVIN PARK CA4300745 California Transient Non-Community 500
FRESNO CITY PARKS & RECREATION CA1000340 California Transient Non-Community 500
NORTHRIDGE COUNTRY CLUB CA3400285 California Transient Non-Community 500
COARSEGOLD MINI MART/C&B CA2000809 California Transient Non-Community 500
DIAZ LAKE CAMPGROUND CA1400049 California Transient Non-Community 500
MILLPOND RECREATION AREA CA1400047 California Transient Non-Community 500
KINGS RIVER ELEMENTARY SCHOOL CA5400624 California Non-Transient Non-Community 500
TULARE CO CORRECTIONAL CENTER ROAD CAMP CA5400797 California Non-Transient Non-Community 500
WILLOWS HIGH SCHOOL CA1100256 California Transient Non-Community 500
TURLOCK LAKE STATE PARK CA5000212 California Transient Non-Community 500
PLACERCOUNTY WATER AGENCY CA3110205 California Community 500
THE ANDERSON CA4000875 California Transient Non-Community 500
GILROY FOODS, GILROY WEST PLANT CA4300627 California Non-Transient Non-Community 500
TORO CANYON PARK CA4200679 California Transient Non-Community 500
PLACER COUNTY WATER AGENCY CA3110105 California Community 500
MAPLE WATER COMPANY CA1900996 California Community 500
WESTSIDE & CHERRY VALLEY RAILW CA5500169 California Transient Non-Community 500
LINCOLN ELEMENTARY SCHOOL CA5100147 California Transient Non-Community 500
LINDCREST ELEMENTARY SCHOOL CA5100148 California Transient Non-Community 500
IRVINE REGIONAL PARK CA3000770 California Transient Non-Community 500
SUTTER MEDICAL CENTER OF SANTA ROSA CA4900836 California Non-Transient Non-Community 500
SANTA ROSA MEMORIAL HOSPITAL CA4900839 California Transient Non-Community 500
LANCASTER NATIONAL SOCCER CENTER CA1909645 California Transient Non-Community 500
STANISLAUS CO ADMIN - COUNTY CENTER III CA5000162 California Transient Non-Community 500
LAKE ISABELLA COMMUNITY SERVICES DIST CA1503270 California Community 500
LAWSONS LANDING CA2100526 California Community 500
STANISLAUS COUNTY COURTHOUSE CA5000161 California Transient Non-Community 500
WRIGHT ELEMENTARY SCHOOL CA4900694 California Non-Transient Non-Community 500
MC CLURE POINT REC AREA CA2200063 California Transient Non-Community 500
FREMONT MEDICAL CENTER CA5100178 California Transient Non-Community 500
BURGER KING-WHITE CITY OR4194889 California Transient Non-Community 500
ST JOSEPH'S CHURCH CA5700528 California Transient Non-Community 500
KINGDOM HALL (FALLON RD) CA3500916 California Transient Non-Community 500
ODD FELLOWS PARK CA4900752 California Community 500
WILLIAMS MIGRANT CAMP CA0600014 California Non-Transient Non-Community 500
ELK'S CLUB CA5000373 California Transient Non-Community 500