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
PALOMAR MOUNTAIN MUTUAL WATER CO. CA3700933 California Community 193
ROARING CAMP RAILROAD INC CA4400825 California Transient Non-Community 193
MPWD-COULTERVILLE CSA 1 CA2210901 California Community 193
WESTERN MWD (ID A - RAINBOW) CA3310076 California Community 192
ACORN VILLAGE MOBILE HOME PARK TX1012333 California Community 192
ACCELERATED CHARTER HIGH SCHOOL CA5400538 California Non-Transient Non-Community 192
EAST TULE LAKE WATER DIST CA2500808 California Community 192
AUBERRY LDS CHURCH CA1000609 California Transient Non-Community 192
EAST TULELAKE WATER DIST CA4700867 California Community 192
MAGIC WATERS MOBILE HOME PARK CA3301412 California Community 192
CEDAR STOCK RESORT CA5300055 California Transient Non-Community 192
EAST TULE LAKE WATER DIST CA2500558 California Community 192
PESCADERO HIGH SCHOOL CA4100513 California Non-Transient Non-Community 192
LAS FLORES WATER WORKS CA5200502 California Community 191
CSP BENICIA STATE PARK CA4810300 California Transient Non-Community 191
RIO MESA GOLF INC CA2000245 California Transient Non-Community 190
REVOL GREENS CA1503682 California Non-Transient Non-Community 190
Susanville Upper Rancheria 090605150 California Community 190
OCEAN BREEZE TRAILER PARK CA3000601 California Community 190
CAMP JACK HAZARD CA5500151 California Transient Non-Community 190
RUSTLERS CA5403068 California Transient Non-Community 190
TOLAS WATERWORKS CO OP NV0000055 California Community 190
CARAVAN MOBILEHOME PARK CA4500060 California Community 190
U.C. KEARNEY FIELD STATION CA1000279 California Non-Transient Non-Community 190
MT. GEORGE ESTATE CA2801023 California Community 190
SHEPHERD OF THE HILLS - TEHACHAPI CA1503680 California Transient Non-Community 190
SIERRA ELEMENTARY SCHOOL CA1000313 California Non-Transient Non-Community 190
CHAD MUTUAL WATER COMPANY CA1500549 California Community 190
SANTA CRUZ WALDORF SCHOOL CA4400875 California Non-Transient Non-Community 190
GEORGE SILER CA5000052 California Community 190
PLACER CWA - APPLEGATE CA3110050 California Community 190
FRESNO CLOVIS RWRF WATER SYSTEM CA1010057 California Non-Transient Non-Community 190
RONALD LAKEMAN CA5400862 California Community 190
BRIDGE CAMP CA5301014 California Transient Non-Community 190
LINWOOD MUTUAL WATER COMPANY CA5400853 California Community 190
WATERVIEW MOBILE HOME PARK VA4073800 California Community 189
ROYAL PALMS MOBILE HOME PARK CA5700645 California Community 189
SHAMROCK MOBILE HOME PARK CA4900723 California Community 188
PARK WEST MUTUAL WATER COMPANY CA1400110 California Community 188
MONTE VISTA FARMING CA5000603 California Non-Transient Non-Community 188
SILVER OAK WINE CELLARS CA2801038 California Non-Transient Non-Community 188
CASPAR SOUTH SERVICE COMPANY CA2300610 California Community 188
AWA LA MEL HEIGHTS #3 CA0310019 California Community 188
KEN'S SHOPPING CENTER CA1000611 California Transient Non-Community 187
FERN GROVE WATER CLUB CA4400572 California Community 187
WOODRIDGE MUTUAL WATER CO CA4500235 California Community 187
KELSO ACTIVITY CENTER CA1000422 California Non-Transient Non-Community 187
CSP CASTLE ROCK STATE PARK CA4410314 California Transient Non-Community 187
MONTEREY PARK TRACT CSD CA5000389 California Community 186
CAMPBELL SOUP DIXON CA4800727 California Non-Transient Non-Community 186