Water Quality in Oak Harbor, WA (98249)
EPA violation data for public water systems serving ZIP code 98249.
Active Health Violations
21 health-based violations found in the past 5 years, with at least one still unresolved. Contaminant levels have exceeded federal safety limits. Consider testing your tap water independently.
More violations than 96% of US ZIP codes.
Based on EPA compliance data. Not a substitute for an official water quality report from your utility.
4,198
Population
91
Water Systems
90
Violations (5yr)
21
Health-Based
Location
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Water Systems Serving This Area (91)
Oak Harbor City Of
All resolved Purchased surface water 23,767 people served
2 violations (5yr)
· All resolved
Lead tested: 1.2 ppb (limit: 15 ppb) ✓
Naval Air Station/Whidbey Island
Purchased surface water 16,595 people served
0 violations
Harbor Hills Community Water System
All resolved Groundwater 1,373 people served
2 violations (5yr)
· All resolved
Lead tested: 3.4 ppb (limit: 15 ppb) ✓
Freeland Water And Sewer District
All resolved Groundwater 1,264 people served
1 violation (5yr)
· All resolved
W&B Waterworks 1
All resolved Groundwater 1,112 people served
1 violation (5yr)
· All resolved
Bayview Beach Water District
All resolved Groundwater 1,035 people served
1 violation (5yr)
· All resolved
Island Lake
Groundwater 883 people served
0 violations
Admirals Cove Water District
All resolved Groundwater 870 people served
1 violation (5yr)
· All resolved
Diamond Point
1 health-based Groundwater 810 people served
3 violations (5yr)
· 1 health-based · All resolved
Lynch Cove
Groundwater 721 people served
0 violations
Sandy Hook Yacht Club Estates
All resolved Groundwater 540 people served
1 violation (5yr)
· All resolved
Bayview Beach Water Dist Sys #2
Groundwater 500 people served
0 violations
Sea View Water Llc
All resolved Groundwater 496 people served
1 violation (5yr)
· All resolved
Lead tested: 1.7 ppb (limit: 15 ppb) ✓
Lake Alyson
Groundwater 463 people served
0 violations
Saratoga Beach Owners Assn
All resolved Groundwater 425 people served
1 violation (5yr)
· All resolved
Silver Lake Water
All resolved Groundwater 425 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Crockett Lake Water District
All resolved Groundwater 325 people served
1 violation (5yr)
· All resolved
Swantown Water District
All resolved Groundwater 318 people served
1 violation (5yr)
· All resolved
Beachcomber H2o Co
Groundwater 310 people served
0 violations
Possession Beach Waterfront Park
Groundwater 299 people served
0 violations
Bayview Beach Water Dist Sys #1
Groundwater 295 people served
0 violations
Trinity Lutheran Church
Groundwater 280 people served
0 violations
Cal Waterworks
Groundwater 239 people served
0 violations
Baby Island Heights Water Assoc
Groundwater 211 people served
0 violations
Tel Company#1
Groundwater 210 people served
0 violations
Ledgewood Beach Water District
All resolved Groundwater 202 people served
1 violation (5yr)
· All resolved
South Whidbey Assembly Of God
Groundwater 184 people served
0 violations
Lead tested: 0.7 ppb (limit: 15 ppb) ✓
Whidbey Greenbank Farm
Groundwater 176 people served
0 violations
Mutiny View Manor Community Club
All resolved Groundwater 173 people served
1 violation (5yr)
· All resolved
Maple Glen Community Association
Groundwater 130 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Sandy Point Owners Association
All resolved Purchased groundwater 112 people served
1 violation (5yr)
· All resolved
Lake-O-The-Woods
All resolved Groundwater 108 people served
1 violation (5yr)
· All resolved
Agate West
Groundwater 100 people served
0 violations
M-Bar-C Ranch
All resolved Groundwater 99 people served
1 violation (5yr)
· All resolved
Wheel Estates Park
All resolved Groundwater 95 people served
2 violations (5yr)
· All resolved
Deer Lake Haven Inc
2 health-based Groundwater 90 people served
3 violations (5yr)
· 2 health-based · All resolved
Ridgeview Estates Community Assn.
14 health-based Groundwater 75 people served
15 violations (5yr)
· 14 health-based · All resolved
North Boon Water System
All resolved Groundwater 75 people served
2 violations (5yr)
· All resolved
Lead tested: 1.1 ppb (limit: 15 ppb) ✓
Tel Company 3
Groundwater 75 people served
0 violations
Whidbey Institute
Groundwater 73 people served
0 violations
Lead tested: 0.9 ppb (limit: 15 ppb) ✓
Highland Meadows
All resolved Groundwater 70 people served
1 violation (5yr)
· All resolved
Lead tested: 2.2 ppb (limit: 15 ppb) ✓
Tel Company 4
Groundwater 69 people served
0 violations
Dancing Fish Farm
1 health-based Groundwater 65 people served
8 violations (5yr)
· 1 health-based · All resolved
Bacus Road #1
Groundwater 62 people served
0 violations
Labella Vista Water System
Groundwater 60 people served
0 violations
Island Park Mobile Home Park
All resolved Groundwater 60 people served
2 violations (5yr)
· All resolved
Beverly Beach Water
Groundwater 60 people served
0 violations
Mahoneyville Water Assoc
All resolved Groundwater 60 people served
1 violation (5yr)
· All resolved
Swanrun Water System
All resolved Groundwater 60 people served
1 violation (5yr)
· All resolved
Langley Kingdom Hall
Groundwater 60 people served
0 violations
Bush Point Terrace Comm Club Inc.
All resolved Groundwater 55 people served
1 violation (5yr)
· All resolved
Lead tested: 1.2 ppb (limit: 15 ppb) ✓
Hope View Water Co
All resolved Groundwater 53 people served
1 violation (5yr)
· All resolved
Sunlight Beach Water Co Inc
All resolved Groundwater 53 people served
7 violations (5yr)
· All resolved
Mutiny Sands Club
All resolved Groundwater 52 people served
1 violation (5yr)
· All resolved
Lead tested: 0.8 ppb (limit: 15 ppb) ✓
Del Bay
Groundwater 50 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb) ✓
Fauth Water System
Groundwater 48 people served
0 violations
Greenbank Estates Water System
All resolved Groundwater 47 people served
1 violation (5yr)
· All resolved
Pinewood Community Club Inc
All resolved Groundwater 47 people served
1 violation (5yr)
· All resolved
Lead tested: 2.1 ppb (limit: 15 ppb) ✓
Windmill Heights Comm Club
All resolved Groundwater 45 people served
1 violation (5yr)
· All resolved
Whidbey Island Eagles #3418
All resolved Groundwater 45 people served
1 violation (5yr)
· All resolved
Briarwood Water System
3 health-based Groundwater 44 people served
11 violations (5yr)
· 3 health-based
Harbor Hill
All resolved Groundwater 43 people served
1 violation (5yr)
· All resolved
Westview (Plat Of)
Groundwater 38 people served
0 violations
Sandberg Water Assn
All resolved Groundwater 37 people served
1 violation (5yr)
· All resolved
Cedarhearth Water
Groundwater 37 people served
0 violations
Rolf Bruun
Groundwater 36 people served
0 violations
Admiralty Inlet Resort Coop
Groundwater 36 people served
0 violations
Menlo Beach Owners Assoc.
Groundwater 36 people served
0 violations
H & R Water System
Groundwater 36 people served
0 violations
Barr Community Club Inc
Groundwater 36 people served
0 violations
Whidbey Hills
Groundwater 34 people served
0 violations
Arcadia Community Water
Groundwater 31 people served
0 violations
Wildwood Park Water Association
Groundwater 29 people served
0 violations
Goss Lakeridge Acres Association
Purchased groundwater 27 people served
0 violations
Lead tested: 8.7 ppb (limit: 15 ppb) ✓
Cascade View Road Water System
All resolved Groundwater 26 people served
3 violations (5yr)
· All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓
Hilltop Terrace Community Club
Groundwater 25 people served
0 violations
Meadowood Acres Protective Assoc
Groundwater 25 people served
0 violations
Double Bluff Park
Groundwater 25 people served
0 violations
Christian Science Soc., S Whidbey
Groundwater 25 people served
0 violations
Cliffside Water System
All resolved Groundwater 24 people served
1 violation (5yr)
· All resolved
Bush Point Shores Comm Assoc Inc
Groundwater 22 people served
0 violations
Panoramic Vista Water System
Groundwater 22 people served
0 violations
Mutiny Bay Resort
Groundwater 22 people served
0 violations
Bush Point Resort
Groundwater 14 people served
0 violations
Maxwelton Creek Co-Housing
Groundwater 13 people served
0 violations
Skagit River Colony
Groundwater 11 people served
0 violations
Robinsons Resort
Groundwater 9 people served
0 violations
Bush Point Beach
Groundwater 9 people served
0 violations
Barr Bungalow Add #1
Groundwater 9 people served
0 violations
Bayview Cash Store
Groundwater 5 people served
0 violations
Collins Water System #3
Groundwater 3 people served
0 violations
Contaminants Found
Revised Total Coliform RuleHealth-Based
Missed testing deadlines — not a detection of bacteria.
22 violations
All resolved
ArsenicHealth-Based
A naturally occurring element that can cause cancer and other health effects at high levels.
17 violations
All resolved
TTHMHealth-Based
9 violations
All resolved
NitrateHealth-Based
At high levels, nitrate can cause blue baby syndrome in infants.
5 violations
All resolved
Consumer Confidence RuleMonitoring
Annual water quality report delivery requirement.
30 violations
Has active
Total Haloacetic Acids (HAA5)Monitoring
6 violations
All resolved
Lead & Copper Levels
Lead (Pb)
Within limit2.2 ppb measured
Action level: 15 ppb
Sampled: Jan 2023
How Does This Compare?
Oak Harbor (98249) has more violations than 96% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 90.
Fewer violations 96th percentile More violations
Recommended Water Filters
Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.
Reverse Osmosis System
Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.
Targets:Lead, Copper, Arsenic, Mercury, Cadmium
Look for:NSF/ANSI 58 certified
Activated Carbon Filter
Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.
Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor
Look for:NSF/ANSI 42 & 53 certified
UV Water Purifier
Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.
Targets:E. coli, Coliform, Giardia, Cryptosporidium
Look for:NSF/ANSI 55 (Class A) certified
Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.