Washington Water Quality
Check tap water quality for any ZIP code in Washington. See contaminants, violations, and health risks for your water system.
Enter a Washington ZIP code to get your free water quality report.
Water Quality in Washington
Key factors and concerns
Washington state benefits from abundant, high-quality water sources, but faces challenges from PFAS contamination near military bases, nitrate contamination in agricultural areas, and naturally occurring arsenic in some groundwater systems.
What's in your Washington water report
Contaminant levels
Every detected contaminant in your Washington water system, compared to EPA limits and health guidelines.
Violation history
All EPA violations on record for water systems in Washington, including health-based and monitoring violations.
Water quality grade
An A through F grade based on violation history, contaminant levels, and health guideline comparisons.
Filter recommendations
Which type of water filter will actually remove the contaminants found in your specific water system.
Check your Washington water now
Enter your ZIP code for a free water quality report specific to your water system in Washington.
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