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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OAK TRAIL ESTATES LTD
CA4100881 · 200 served
OAK TRAIL RANCH
CA4200802 · 102 served
OAK TREE MOUNTAIN
CA3600032 · 500 served
OAK VALLEY ACRES P.O.A.
CA4700638 · 41 served
OAK VALLEY GOLF CLUB
CA3302053 · 200 served
OAK VALLEY SCHOOL
CA5400713 · 570 served
OAK VIEW TERRACE
CA1000497 · 30 served
OAK VIEW UNION ELEMENTARY SCH
CA3900846 · 350 served
OAK WATER
CA2701363 · 28 served
OAKDALE CHEESE & SPECIALTIES
CA5000503 · 25 served
OAKDALE GOLF & COUNTRY CLUB (EH)
CA5000091 · 25 served
OAKDALE RURAL WATER SYSTEM #2
CA5000468 · 25 served
OAKDALE UNIFIED SCHOOL
CA5000296 · 219 served
OAKDALE, CITY OF
CA5010014 · 23,235 served
OAKENDELL, INC.
CA0500105 · 25 served
OAKHAVEN
CA5510032 · 0 served
OAKHURST CHRISTIAN CONF CENTER
CA2000821 · 288 served
OAKHURST ELEMENTARY SCHOOL
CA2000613 · 329 served
OAKHURST LODGE
CA2000764 · 120 served
OAKHURST MARKET
CA2000582 · 50 served
OAKHURST MOBILE HOME ESTATES
CA2000593 · 138 served
OAKHURST PLAZA
CA2000584 · 100 served
OAKHURST SHOPPING CENTER
CA2000583 · 100 served
OAKLAND COUNCIL B.S.A.
CA5500134 · 250 served
OAKLAND FEATHER RIVER CAMP
CA3200019 · 300 served
OAKLANE MOBILE VILLAGE, LLC.
CA0900404 · 75 served
OAKLEY MUTUAL WATER COMPANY
CA0706004 · 170 served
OAKMONT WATER SYSTEM
CA4300526 · 61 served
OAKMOORE CONGRE OF JEHOVAH WIT
CA3901411 · 100 served
OAKOASIS OPEN SPACE PRESERVE
CA3705065 · 25 served
OAKRIDGE GOLF CLUB
CA4300795 · 25 served
OAKRIDGE SUBDIVISION MWC**CLOSED**
CA2701422 · 66 served
OAKRIDGE WATER COMPANY
CA4300564 · 270 served
OAKRIDGE WATER SYSTEM
CA1700540 · 75 served
OAKS CAFE
CA1900087 · 25 served
OAKS MOBILE HOME PARK
CA2200006 · 30 served
OAKSIDE MUTUAL WATER
CA5700545 · 100 served
OAKSTONE LLC
CA2000684 · 300 served
OAKVALE PARK
CA3700962 · 260 served
OAKVILLE GRADE WINERY
CA2801052 · 25 served
OAKVILLE GROCERY CO.
CA2800556 · 25 served
OAKWOOD LAKE MOBILE HOME PARK
CA3910029 · 148 served
OAKWOOD LAKE RESORT
CA3900881 · 501 served
OAKWOOD LAKE WATER DISTRICT-SUBDIVISION
CA3910023 · 1,479 served
Oasis at Havasu Palms
090600201 · 109 served
OASIS CAFE
CA1700660 · 25 served
OASIS CAFE
CA3301470 · 25 served
OASIS CAFE
CA3600780 · 25 served
OASIS CAFE WS
CA2701000 · 27 served
OASIS DATE GARDENS
CA3301373 · 832 served