Drinking Water Systems in Oak Harbor, Washington
26 water systems are reported for this city, with a combined service population of 27,578. The systems have 129 EPA violation records in the five-year period ending June 30, 2026.
Water Systems Serving Oak Harbor
FARANDA WATER ASSOCIATON
28 served24 historical records23 recent
C
PENN COVE WATER AND SEWER DISTRICT
460 served33 historical records16 recent
F
PATTONS RETREAT WATER ASSN
90 served29 historical records5 recent
C
OAK HARBOR CITY OF
23,675 served10 historical records2 recent
B
SUNRISE HILLS COMMUNITY W S
186 served14 historical records
A
TIMARU COMMUNITY WATER ASSOCIATION
27 served14 historical records3 recent
C
SCENIC HEIGHTS W A INC
78 served23 historical records3 recent
C
ROLLING HILLS-GLENCAIRN
872 served42 historical records17 recent
F
BON AIR COMMUNITY CLUB INC.
160 served7 historical records1 recent
B
BONNIE VIEW WATER
50 served35 historical records5 recent
D
FOREST HILLS PARK COMMUNITY
54 served41 historical records3 recent
C
BAYVIEW MEADOWS WATER SYSTEM
34 served32 historical records1 recent
B
EVERGREEN VALLEY VIEW WATER SYSTEM
40 served16 historical records2 recent
B
SAN JUAN ESTATES WATER ASSOCIATION
36 served1 historical record1 recent
B
WATERLOO ACRES COMMUNITY WATER SYS
125 served15 historical records1 recent
B
NORTH WHIDBEY WATER DISTRICT
568 served11 historical records6 recent
C
Koontz Ranch Water System
30 served5 historical records4 recent
C
WESTVIEW COMMUNITY ASSOCIATION
43 served51 historical records
A
FROSTAD FARMS WATER ASSN
25 served0 historical records
A
CAMPO HACIENDA
123 served87 historical records4 recent
D
LYON RD COMMUNITY ASSOCIATION
50 served12 historical records1 recent
B
DUGUALLA COMMUNITY INC
459 served29 historical records25 recent
C
BAYVIEW ESTATES WATER COMPANY
227 served22 historical records1 recent
B
HIGHLAND TRACE WATER CO INC
62 served25 historical records1 recent
B
SUBURBAN HILLS COMMUNITY ASSOC
46 served8 historical records2 recent
B
LITTLE VALLEY APTS.
30 served26 historical records2 recent
B
EPA Contaminant Categories in Historical Violation Records
Coliform (TCR)133 records
Total Trihalomethanes (TTHMs)42 records
Nitrate28 records
Arsenic27 records
Consumer Confidence Rule26 records
Revised Total Coliform Rule25 records
Lead and Copper Rule19 records
Haloacetic Acids (HAA5)16 records
Gross Alpha13 records
Fluoride11 records
Category counts aggregate historical compliance records across listed systems. They do not show current concentrations or household test results.