Walla Walla
Is Walla Walla tap water safe to drink?
Mostly yes — Walla Walla scores 99/100. This report aggregates EPA drinking water data across 5 local systems in Walla Walla. We found 313 total violations (73 unresolved).
Real-Time Environment
Live: 05:00 PM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Walla Walla.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Walla Walla?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Evaluation of municipal compliance and household filtration options in Walla Walla.
Baby Formula Safety
EPA compliance thresholds and pediatric water precautions for Walla Walla.
Homebuyer's Perspective
Water system history in Walla Walla informs property maintenance and private filtration requirements. The high safety score (99/100) 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 Walla Walla
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Walla Walla.
Frequently Asked Questions
Is Walla Walla tap water safe to drink?
Mostly yes — Walla Walla scores 99/100.
How many water systems serve Walla Walla?
Walla Walla is served by 5 public water systems in our latest EPA-backed dataset.
How can I check water quality for my exact address in Walla Walla?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Walla Walla.
What is the water quality score for Walla Walla?
The water quality score for Walla Walla is 99 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 Walla Walla?
The top contaminants detected in Walla Walla include Lead (90th percentile). View detailed information on our contaminants page.
Walla Walla Water Quality Summary
Walla Walla, WA receives a water quality score of 99/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 5 public water systems serving the area.
Walla Walla'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.
Walla Walla's score of 99 is 5 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 Walla Walla (5)
Burbank Business Park
AWalla Walla University
AWalla Walla Water Division
AWallula Dodd Water System
AConsolidated Irrigation Dist 14
ACheck Your Specific Address
Water quality can vary by neighborhood in Walla Walla.
Related
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Compare Walla Walla water quality: View all states · Contaminant library · How we score water quality