Sequim
Is Sequim tap water safe to drink?
Mostly yes — Sequim scores 96/100. This report aggregates EPA drinking water data across 5 local systems in Sequim. We found 336 total violations (64 unresolved).
Real-Time Environment
Live: 09:45 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Sequim.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Sequim?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Should you buy a water purifier in Sequim? See our analysis.
Baby Formula Safety
Is Sequim tap water safe for infants? Critical safety guide.
Homebuyer's Perspective
For those looking to relocate to Sequim, water quality is a key factor in long-term property maintenance. 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 Sequim
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Sequim.
Frequently Asked Questions
Is Sequim tap water safe to drink?
Mostly yes — Sequim scores 96/100.
How many water systems serve Sequim?
Sequim is served by 5 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Sequim?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Sequim.
What is the water quality score for Sequim?
The water quality score for Sequim is 96 out of 100, based on EPA contaminant data, violation history, and testing results across the 5 systems serving the city.
What are the top contaminants in Sequim?
The top contaminants detected in Sequim include Lead (90th percentile). View detailed information on our contaminants page.
Sequim Water Quality Summary
Sequim, WA receives a water quality score of 96/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 5 public water systems serving the area.
Sequim'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.
Sequim'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 Sequim (5)
West Sequim Bay Inc
BSunland Water District
AEstates Inc
ASequim City Of
ABlyn - 7 Cedars Consolidated
ACheck Your Specific Address
Water quality can vary by neighborhood in Sequim.
Related
Quick compare in Washington
Compare Sequim water quality: View all states · Contaminant library · How we score water quality