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
DEL ORO WC - COUNTRY ESTATES DIST CA1500314 California Community 297
LAKE MADRONE WATER DISTRICT CA0400014 California Community 297
HIDDEN VIEW HENSLEY LAKE CA2000195 California Transient Non-Community 297
RANCHO CALIMESA MOBILE HOME PARK CA3301534 California Community 296
DON PEDRO REC AG:BLUE OAKS CA5500274 California Transient Non-Community 296
La Jolla Western 090605008 California Community 296
KOKANEE-STONEY POINT CAMPGRD CA5301111 California Transient Non-Community 295
STANFORD SIERRA CAMP CA0900507 California Transient Non-Community 295
ELEANOR ROOSEVELT COMM LEARNING CTR CA5403130 California Non-Transient Non-Community 295
KOKANEE & STONEY PT CAMPGROUND CA5300069 California Transient Non-Community 295
MANZANITA ELEMENTARY SCHOOL CA0400063 California Non-Transient Non-Community 295
SKYLINE PARK CA4200616 California Community 295
CWS - LAKELAND CA1510049 California Community 294
CANYON RV PARK CA3000759 California Non-Transient Non-Community 294
GOODRICH GRAND MOUNT AREA WATER WA5336881 California Transient Non-Community 293
FCWWD 42/ALLUVIAL & FANCHER CA1000078 California Community 291
RANCHERITOS #2 CA3601186 California Community 291
RANCHO DEL CAMPO WATER SYSTEM CA3700859 California Community 290
SCHELBY SCHOOL CA2400113 California Non-Transient Non-Community 290
MOSS MOBILE MANOR CA3600397 California Community 290
SONOMA COUNTY CSA 41-FREESTONE CA4900549 California Community 290
AUTOCAMP-YOSEMITE CA2202036 California Transient Non-Community 290
MORADA ESTATES PWS CA3900722 California Community 290
MESQUITE MINES INC. CA1300643 California Non-Transient Non-Community 290
SID - ELMIRA CA4810011 California Community 290
GILL CREEK MUTUAL WATER COMPANY CA4900521 California Community 290
EASTERN SIERRA COLLEGE CENTER - BISHOP CA1400526 California Non-Transient Non-Community 290
LOUISIANA PACIFIC FIBERBOARD CA4500174 California Transient Non-Community 290
AUBURN VALLEY COMMUNITY SERVICE DIS CA3100011 California Community 290
GRAN MUTUAL WATER CO CA0400008 California Community 290
GOODRICH GRAND MOUND AREA WATER WA5328784 California Transient Non-Community 290
RAY BOYER CA0300015 California Transient Non-Community 290
KERN VALLEY COURTS COMPLEX CA1502756 California Non-Transient Non-Community 290
SIERRA OUTDOOR SCHOOL CA5500171 California Non-Transient Non-Community 289
ROUND VALLEY ELEMENTARY SCHOOL CA2300830 California Non-Transient Non-Community 289
GRENADA SANITARY DISTRICT CA4700523 California Community 289
MUSICK MEADOWS 2 CA1000061 California Non-Transient Non-Community 289
GRAVENSTEIN SCHOOL DISTRICT-HILLCREST CA4900711 California Non-Transient Non-Community 289
ANGELS CAMP RV/CAMPING RESORT CA0500082 California Community 288
OAKHURST CHRISTIAN CONF CENTER CA2000821 California Transient Non-Community 288
CARMET BY THE SEA WATER COMPANY CA4900578 California Community 288
OID #51 - SUNSET OAKS #10 CA5000317 California Community 287
BELMONT TERRACE MUTUAL WATER COMPANY CA4900558 California Community 287
MCCLURE BOAT CLUB, INC. CA2210905 California Community 286
CDPR-MCCONNELL CA2410301 California Transient Non-Community 286
CWS COUNTRYWOOD SYSTEM CA1500408 California Community 285
MALAGA SCHOOL CA1000404 California Non-Transient Non-Community 285
LICK OBSERVATORY-UCSC CA4300909 California Community 284
D'ARRIGO HARRIS RD WS #10 CA2702704 California Non-Transient Non-Community 284
CAMP NAVARRO CA2300873 California Transient Non-Community 284