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
BEESINGER WATER SYSTEM CA2700510 California Community 410
HHW&P MOCCASIN COMPOUND-SFPUC CA3810003 California Community 410
ORANGE CENTER SCHOOL CA1000276 California Non-Transient Non-Community 410
FAIRVIEW SCHOOL CA5400843 California Non-Transient Non-Community 410
LEISURE MOBILE HOME PARK CA4900832 California Community 410
PALO VERDE COUNTY WATER DIST. CA1300616 California Community 410
Table Mountain Upper 090605133 California Community 410
Round Valley Piner 090605015 California Community 409
BALLS FERRY FISHING RESORT CA4500054 California Community 408
TRIPLE R MUTUAL WATER CO CA5400670 California Community 408
Big Sandy Rancheria 090600121 California Community 408
JOSEPH GALLO CHEESE CO. CA2400206 California Non-Transient Non-Community 407
MID - BARRETT COVE CA2209035 California Transient Non-Community 407
JOSHUA TREE NP - BLACK ROCK CANYON CA3310502 California Transient Non-Community 407
SONOMA COUNTY CSA 41-JENNER CA4900532 California Community 406
CHRISTIAN LIFE ASSEMBLY WATER SYSTEM CA1503646 California Transient Non-Community 406
VOLTA COMMUNITY SD CA2400201 California Community 406
ACTON ELEMENTARY SCHOOL CA1900960 California Transient Non-Community 405
LODI USD-HOUSTON SCHOOL CA3900850 California Non-Transient Non-Community 405
MYOMA DUNES MUTUAL WATER COMPA CA3301453 California Community 405
PAUL REIFF & SONS CA5700644 California Transient Non-Community 405
THOUSAND TRAILS OAKZANITA INC. CA3700873 California Transient Non-Community 404
CSP - RED ROCK CANYON CA1510300 California Transient Non-Community 404
LAGUNA VISTA SCHOOL/OCEANVIEW SCHOOL DIS CA5602403 California Non-Transient Non-Community 404
JH RANCH CA4700807 California Transient Non-Community 403
MOONEY GROVE PARK CA5400951 California Transient Non-Community 402
CSP-GOAT ROCK STATE BEACH CA4910313 California Transient Non-Community 402
FRESNO HMONG ALLIANCE CHURCH CA1000406 California Transient Non-Community 402
LAS CUMBRES MUTUAL WATER CO CA4400631 California Community 402
STONE LAGOON-STATE PARKS CA1210321 California Transient Non-Community 402
JOSAN AND JOSAN, INC. CA1000520 California Transient Non-Community 402
KOA - PETALUMA CA4900737 California Transient Non-Community 401
KERN CO P&R-LAKE WOOLLOMES WATER SYSTEM CA1502319 California Transient Non-Community 401
HARBIN HOT SPRINGS CA1700511 California Non-Transient Non-Community 401
CALIFORNIA CORRECTIONS CA1502360 California Transient Non-Community 400
STEVENS CREEK COUNTY PARK CA4300782 California Transient Non-Community 400
WEST GOSHEN MUTUAL WATER CO CA5400957 California Community 400
FAITH MISS OUTREACH, INC CA2200071 California Transient Non-Community 400
DAYLOR WILLIAM CA3400252 California Transient Non-Community 400
MONARCH NUT COMPANY CA5403140 California Non-Transient Non-Community 400
GSA TECATE PORT OF ENTRY CA3710048 California Non-Transient Non-Community 400
WIENERSCHNITZEL CA3901120 California Transient Non-Community 400
LAKE SHERWOOD CA5603102 California Community 400
MONTEREY BAY ACADEMY CA4400755 California Community 400
GOLD ARROW CAMP CA1000158 California Transient Non-Community 400
Camp Yolijwa CA3600757 California Transient Non-Community 400
CO OF SAN JOAQUIN CA3900955 California Transient Non-Community 400
PLA-VADA PROP OWNERS ASSOC CA2900509 California Transient Non-Community 400
RUTH LAKE C S D CA5300057 California Transient Non-Community 400
CITIZENS UTILITIES CO CA3410117 California Community 400