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
CYPRESS MUTUAL WATER CO INC CA5602103 California Community 224
ANZA MUTUAL WATER COMPANY CA3301180 California Community 224
CLASSIC YAM WATER SYSTEM CA2400255 California Non-Transient Non-Community 224
LUCERNE VISTA MWC CA3600157 California Community 224
POOL CALIFORNIA ENERGY SERV-ROSEDALE CA1503253 California Non-Transient Non-Community 224
VOLPONI ACRES MUTUAL WATER CO CA5500082 California Community 224
CALIFORNIAN CA3600379 California Transient Non-Community 224
CHP CALEXICO PORT OF ENTRY CA1310017 California Non-Transient Non-Community 223
LAKESHORE VILLA CENTER CA4500178 California Transient Non-Community 223
MOUNTAIN SUMMIT MUTUAL WATER SYSTEM CA4400570 California Transient Non-Community 223
SCIOTS TRACT WATER SYSTEM CA0900120 California Transient Non-Community 223
ANANDA VILLAGE CA2900562 California Community 222
THEODORE H FALLER SCHOOL CA1502412 California Transient Non-Community 222
CAMP WAWONA CA2203051 California Transient Non-Community 222
Utu Utu Gwaitu Paiute Tribe 090600159 California Community 222
FRANCIS COPPOLA WINERY CA4900844 California Non-Transient Non-Community 222
QVWD-WEST & EAST COMBINED WATER SYSTEM CA1503226 California Community 221
RICHMOND ELEMENTARY SCHOOL CA1800573 California Non-Transient Non-Community 221
NORTH STAR MOBILE HOME PARK CA4900797 California Community 221
DRYTOWN COUNTY WATER DISTRICT CA0300010 California Community 221
MAGIC MOUNTAIN MUTUAL WATER COMPANY CA4900637 California Community 221
TOKAY WATER CO CA3900564 California Community 220
GARDEN GROVE ACRES01 CA3000596 California Community 220
THE PEG HOUSE CA2300508 California Transient Non-Community 220
ZINC HOUSE FARM WINERY CA3902213 California Transient Non-Community 220
HAPPY ACRES MWC CA4300551 California Community 220
AMERICAN GOLF CORP SC2670877 California Transient Non-Community 220
PLEASANT VIEW WEST SCHOOL CA5400882 California Non-Transient Non-Community 220
COLUMBINE SCHOOL CA5400886 California Non-Transient Non-Community 220
LONGHORN MOBILE HOME COMMUNITY TX1010587 California Community 220
Alpine Clinic (SIHC) 090605115 California Non-Transient Non-Community 220
PANOCHE WATER DISTRICT CA1000345 California Community 220
Howonquet Community(Smith River) 090605060 California Community 220
DOWLING FRUIT ORCHARD CA3301222 California Transient Non-Community 220
LACTALIS HERITAGE DAIRY CA5403074 California Non-Transient Non-Community 220
E HEADSTART CA5200541 California Non-Transient Non-Community 220
EL NIDO ELEMENTARY SCHOOL CA2400075 California Non-Transient Non-Community 220
WAUKENA ELEMENTARY SCHOOL CA5400795 California Non-Transient Non-Community 220
DINGERVILLE USA PARK CA0400051 California Community 220
THE OAKS VENTURE, LLC CA3700235 California Transient Non-Community 220
RIPPLEWOOD RESORT WS CA2701009 California Transient Non-Community 220
SUGAR PINE RV RESORT CA5500115 California Community 219
MUMMA (THOMAS) WELL CA5700553 California Transient Non-Community 219
OAKDALE UNIFIED SCHOOL CA5000296 California Transient Non-Community 219
LOS GATOS TOMATO PRODUCTS CA1000490 California Non-Transient Non-Community 219
FC TRACY HOLDINGS, LLC CA3902211 California Non-Transient Non-Community 219
PANAMINT SPRINGS RESORT CA1400044 California Transient Non-Community 218
ARMENIAN CHURCH CAMP CA1000151 California Transient Non-Community 218
MERCED RIVER RESORT CA2400028 California Transient Non-Community 218
LAWNDALE MUTUAL WATER COMPANY CA4900588 California Community 218