Arlington
Is Arlington tap water safe to drink?
Generally acceptable, but review local hotspots — score 69/100. This report aggregates EPA drinking water data across 3 local systems in Arlington. We found 326 total violations (23 unresolved).
Real-Time Environment
Live: 12:00 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Arlington.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Arlington?
Expert Advice
Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.
Buying a Filter?
Should you buy a water purifier in Arlington? See our analysis.
Baby Formula Safety
Is Arlington tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Arlington, water quality is a key factor in long-term property maintenance. With a score of 69/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Residents should monitor Copper (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 Arlington
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Arlington.
Frequently Asked Questions
Is Arlington tap water safe to drink?
Generally acceptable, but review local hotspots — score 69/100.
How many water systems serve Arlington?
Arlington is served by 3 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Arlington?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Arlington.
What is the water quality score for Arlington?
The water quality score for Arlington is 69 out of 100, based on EPA contaminant data, violation history, and testing results across the 3 systems serving the city.
What are the top contaminants in Arlington?
The top contaminants detected in Arlington include Copper (90th percentile), Lead (90th percentile). View detailed information on our contaminants page.
Arlington Water Quality Summary
Arlington, WA receives a water quality score of 69/100 (Grade C) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 3 public water systems serving the area.
Arlington's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.
Arlington's score of 69 is 25 points below the Washington state average of 94, and below 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 Arlington (3)
Check Your Specific Address
Water quality can vary by neighborhood in Arlington.
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Quick compare in Washington
Compare Arlington water quality: View all states · Contaminant library · How we score water quality