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
HERINGER ESTATES WINERY CA5700516 California Transient Non-Community 300
YOSEMITE NPS-WHITE WOLF CA5510504 California Transient Non-Community 300
PHILLIPSVILLE C.S.D. CA1200541 California Community 300
BIG LAGOON - HUMBOLDT CO. PARKS CA1206005 California Transient Non-Community 300
Mitomkai Tribal Water System 090605120 California Community 300
MIDLAND PARK WATER TRUST CA1900652 California Community 300
COLLEGE OF SEQUOIAS CA5400825 California Non-Transient Non-Community 300
EAST WALNUT GROVE [SWS] CA3400106 California Community 300
ESCALON PREMIER BRANDS CA3900797 California Non-Transient Non-Community 300
BERMUDA DUNES COUNTRY CLUB CA3301039 California Non-Transient Non-Community 300
R C SOULTS CA5400671 California Community 300
8986 DEEP CREEK ROAD CA3601189 California Transient Non-Community 300
JOHN NIEMES ELEMENTARY SCHOOL CA1900300 California Non-Transient Non-Community 300
HICKS WATER COMPANY CA1500283 California Community 300
STRATHMORE MINIMART CA5403221 California Transient Non-Community 300
NORTH FORK RANGER STATION CA2000620 California Non-Transient Non-Community 300
DUNNEVILLE MARKET & KITCHEN CA3500539 California Transient Non-Community 300
SOUTHSIDE ELEMENTARY SCHOOL CA3500521 California Non-Transient Non-Community 300
OPEN COUNTRY SWAP MEET CA5400918 California Transient Non-Community 300
CAL TRANS - CRESTVIEW REST AREA CA2600589 California Transient Non-Community 300
MOKELUMNE MANOR CA3900580 California Community 300
CAL TRANS - DIVISION CREEK CA1400114 California Transient Non-Community 300
SPRECKLS SUGAR COMPANY CA2701223 California Transient Non-Community 300
HERNDON WATER COMPANY CA1000048 California Community 300
SONORA WATER CO, INC CA5500024 California Community 300
ELEVATE CAMPS SMALL WATER SYSTEM CA4500325 California Transient Non-Community 300
USFS SOURGRASS CAMPGD CA5500263 California Transient Non-Community 300
NPS-CRYSTAL CAVE PK LOT CA5410509 California Transient Non-Community 300
SNP-CRYSTAL CAVE CA5410508 California Transient Non-Community 300
TAHOE WATERFRONT CLUB CA0900556 California Transient Non-Community 300
FIORI'S RESTAURANT CA4900886 California Transient Non-Community 300
MARINA DEL MAR MOBILE PARK CA2700880 California Community 300
GROVE WATER SYSTEM CA3400127 California Community 300
F M C CA4300810 California Transient Non-Community 300
COLUMBIA ELEMENTARY SCHOOL CA5500166 California Transient Non-Community 300
BLACK BUTTE LAKE, HEADQUARTERS, USCOE CA5201142 California Transient Non-Community 300
BERRYESSA BREWING COMPANY CA5700618 California Transient Non-Community 300
SACWEST RV PARK AND CAMPGROUND CA5700584 California Transient Non-Community 300
SAN JOAQUIN COUNTY CA3901009 California Community 300
FIRST BAPTIST CHURCH CA5700701 California Transient Non-Community 300
BILTMORE HOTEL CA4200676 California Non-Transient Non-Community 300
PUMICE FLATS CAMPGROUND CA2000379 California Transient Non-Community 300
MT. PLEASANT WATER USERS ASSOCIATION CA4300563 California Community 300
DENNY BOYS WATER SYSTEM CA3901124 California Transient Non-Community 300
BIG PINE TRACT CA3600031 California Community 300
STIRLING BLUFFS CA0400011 California Community 300
HORSESHOE MEADOW CAMPGROUND CA1400184 California Transient Non-Community 300
YOSEMITE NPS-MAY LAKE CAMP CA2210500 California Transient Non-Community 300
WILTON CHEVRON CA3400435 California Transient Non-Community 300
PIN OAK MOBILE HOME PARK 1 TX1010524 California Community 300