WaterQ
Washington State Report All States
Official Status: March 2026

Is Yakima tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Yakima scores 96/100.

Safety Score
96
out of 100

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Yakima

Washington

View Washington state report Data updated: Mar 2026

Is Yakima tap water safe to drink?

Mostly yes — Yakima scores 96/100. This report aggregates EPA drinking water data across 7 local systems in Yakima. We found 591 total violations (74 unresolved).

Real-Time Environment

Live: 11:00 AM
0mm Precipitation

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

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 Yakima?

Requirement Status
Optional
🟢
💡

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 Yakima tap water.

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Baby Formula Safety

Infant formula preparation risks, nitrate levels, and lead pipe guidance in Yakima.

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Homebuyer's Perspective

Evaluating water infrastructure in Yakima protects plumbing and helps estimate water heater longevity. The high safety score (96/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

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 Yakima

591
Violations (5yr)
74
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Yakima.

Frequently Asked Questions

Is Yakima tap water safe to drink?

Mostly yes — Yakima scores 96/100.

How many water systems serve Yakima?

Yakima is served by 7 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Yakima?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Yakima.

What is the water quality score for Yakima?

The water quality score for Yakima is 96 out of 100, based on EPA contaminant data, violation history, and testing results across the 7 systems serving the city.

What are the top contaminants in Yakima?

The top contaminants detected in Yakima include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
96/100
Grade
A
Water Systems
7
Population
166,386

Yakima Water Quality Summary

Yakima, WA receives a water quality score of 96/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 7 public water systems serving the area.

Yakima'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.

Yakima'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.

As a mid-size city in Washington, Yakima is part of a Pacific Northwest region characterized by forested mountains and the Puget Sound coastline, areas known for generally clean source water. The multiple local water systems supplying the community consistently deliver outstanding results, reflecting the region's overall environmental advantages. For prospective homebuyers and current residents, this means reliable access to high-quality tap water without the common concerns found in less-favored municipal setups.

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

Lead (90th percentile)
0.0028 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving Yakima (7)

Related

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