Oak Harbor
Is Oak Harbor tap water safe to drink?
Mostly yes — Oak Harbor scores 96/100. This report aggregates EPA drinking water data across 1 local system in Oak Harbor. We found 13 total violations (10 unresolved).
Real-Time Environment
Live: 07:15 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Oak Harbor.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Oak Harbor?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter requirements and certified reduction benchmarks for Oak Harbor tap water.
Baby Formula Safety
Infant formula preparation risks, nitrate levels, and lead pipe guidance in Oak Harbor.
Homebuyer's Perspective
Evaluating water infrastructure in Oak Harbor protects plumbing and helps estimate water heater longevity. The high safety score (96/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Oak Harbor
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Oak Harbor.
Frequently Asked Questions
Is Oak Harbor tap water safe to drink?
Mostly yes — Oak Harbor scores 96/100.
How many water systems serve Oak Harbor?
Oak Harbor is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Oak Harbor?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Oak Harbor.
What is the water quality score for Oak Harbor?
The water quality score for Oak Harbor is 96 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.
What are the top contaminants in Oak Harbor?
The top contaminants detected in Oak Harbor include Lead (90th percentile). View detailed information on our contaminants page.
Oak Harbor Water Quality Summary
Oak Harbor, WA receives a water quality score of 96/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Oak Harbor's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Oak Harbor's score of 96 is 2 points above the Washington state average of 94, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Washington water quality rankings report →
Key Contaminants
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Water Systems Serving Oak Harbor (1)
Check Your Specific Address
Water quality can vary by neighborhood in Oak Harbor.
Related
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Compare Oak Harbor water quality: View all states · Contaminant library · How we score water quality