WaterQ
Washington State Report All States
Official Status: March 2026

Is Walla Walla tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Walla Walla scores 99/100.

Safety Score
99
out of 100

Still not sure if you need a filter in Walla Walla?

Read Decision Guide →

Walla Walla

Washington

View Washington state report Data updated: Mar 2026

Is Walla Walla tap water safe to drink?

Mostly yes — Walla Walla scores 99/100. This report aggregates EPA drinking water data across 0 local systems in Walla Walla. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 06:00 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Walla Walla.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Walla Walla?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Wondering if Walla Walla tap water needs filtering? We break it down.

Baby Formula Safety

Mixing baby formula with Walla Walla tap water? Read this first.

Homebuyer's Perspective

If you're house-hunting in Walla Walla, water quality belongs on your due-diligence checklist alongside schools and crime data. The high safety score (99/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Walla Walla a preferred choice for health-conscious families.

View Health Risk Glossary →

Compliance Record for Walla Walla

0
Violations (5yr)
0
Unresolved
0
Contaminants Tracked
0
Exceeding EPA Limit

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 0 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 for all serving water systems.

What are the top contaminants in Walla Walla?

Current contaminant data for Walla Walla is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
99/100
Grade
A
Water Systems
3
Population
45,787

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 3 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 4 points above the Washington state average of 95, 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 →

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Water Systems Serving Walla Walla (0)

Water system data coming soon for Walla Walla.

Related

Compare Walla Walla water quality: View all states · Contaminant library · How we score water quality