Utilities in California
18,760 systems (SDWIS/Fed snapshot). Search or browse pages — open any row for PFAS monitoring, violation counts, and filter recommendations.
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LAKE ARROWHEAD CSD
CA3610005 · 7,038 served
LAKE ARTHUR CABINS
CA3100067 · 16 served
Lake Basin Spring, Plumas NF
CA3200041 · 0 served
LAKE BERRYESSA BOY SCOUT CAMP
CA2800638 · 55 served
LAKE BERRYESSA MARINA RESORT - INACTIVE
CA2800572 · 2,000 served
LAKE BERRYESSA PARK
CA2810500 · 250 served
LAKE CACHUMA COUNTY PARK
CA4200911 · 1,000 served
LAKE CAHUILLA COUNTY PARK
CA3301566 · 500 served
LAKE CALIFORNIA POA R.V. PARK
CA5200618 · 200 served
LAKE CANYON MUTUAL WATER COMPANY
CA4300522 · 156 served
LAKE CHIQUITA MUTUAL WATER COMPANY
CA0900317 · 63 served
LAKE COMBIE MOBILE HOME VILLAGE
CA2900526 · 65 served
LAKE COTTONWOOD MOBILEHOME PAR
CA3301156 · 160 served
LAKE COUNTY CSA 13 - KONO TAYEE
CA1700554 · 449 served
LAKE COUNTY CSA 16 - PARADISE VALLEY
CA1700516 · 133 served
LAKE COUNTY CSA 2 - SPRING VALLEY
CA1710018 · 1,531 served
LAKE COUNTY CSA 20 - SODA BAY
CA1710022 · 2,003 served
LAKE COUNTY CSA 21 - NORTH LAKEPORT
CA1710021 · 4,046 served
LAKE COUNTY CSA 6 - FINLEY
CA1710019 · 590 served
LAKE COUNTY JUVENILE HOME
CA1700643 · 50 served
LAKE COVE RESORT
CA3200118 · 120 served
LAKE CUYAMACA PARK & REC.
CA3700865 · 600 served
LAKE DAVIS RESORT
CA3200209 · 24 served
LAKE DON PEDRO CSD
CA5510008 · 3,240 served
LAKE DON PEDRO HOMEOWNERS
CA5500268 · 50 served
LAKE EARL GROCERY
CA0800803 · 20 served
LAKE ELEMENTARY SCHOOL
CA1100440 · 205 served
LAKE ELIZABETH MUTUAL WATER CO
CA1900697 · 272 served
LAKE ELIZABETH MUTUAL WATER CO.
CA1910056 · 1,790 served
LAKE ELOWIN RESORT
CA5400761 · 21 served
Lake Elsinore Village
CA3301763 · 170 served
LAKE ELSINORE-CITY
CA3310045 · 4,500 served
LAKE EXPRESS MARKET
CA5401080 · 25 served
LAKE FOREST MUTUAL W.C.
CA1800511 · 565 served
LAKE FOREST UTILITY COMPANY
CA3110032 · 50 served
LAKE FOREST WATER CO
CA3100028 · 400 served
LAKE FRANCIS MUTUAL WATER CO I
CA5800505 · 5 served
LAKE FRANCIS MUTUAL WATER COMPANY
CA5800805 · 60 served
LAKE FRANCIS RESORT
CA5800866 · 100 served
LAKE FULMOR - USFS
CA3301902 · 125 served
LAKE HAVEN MOTEL
CA0900547 · 30 served
LAKE HAVEN RESORT
CA3200122 · 50 served
LAKE HEMET MWD
CA3310022 · 52,913 served
LAKE HEMET MWD-CAMP GROUND
CA3310080 · 600 served
LAKE HEMET-GARNER VALLEY
CA3310052 · 709 served
LAKE HENSHAW RESORT INC.
CA3700900 · 9,913 served
LAKE HODGES BOAT LAUNCH FCLTY
CA3780180 · 25 served
LAKE ISABELLA COMMUNITY SERVICES DIST
CA1503270 · 500 served
LAKE ISABELLA KOA CAMPGROUND
CA1500464 · 280 served
LAKE ISABELLA MOTEL & TRAILER PARK-INAC.
CA1502153 · 36 served