Is Your Tap Water Safe to Drink?
Free water quality reports for every city in America. See what's really in your tap water based on EPA data.
50+
States Covered
10,000+
Cities Analyzed
90+
Contaminants Tracked
100%
Free to Use
Browse Water Quality by State
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How We Rate Water Quality
1. Collect EPA Data
We pull water quality data directly from EPA's SDWIS database, which tracks every public water system in America.
2. Analyze Contaminants
We compare detected contaminant levels against EPA maximum limits and health guidelines to assess risk.
3. Generate Score
Our algorithm calculates an overall score (0-100) based on contaminant levels, compliance history, and system infrastructure.
Concerned About Your Water Quality?
A home water filter can remove most contaminants and give you peace of mind. See our recommended filters.
View Water Filter Recommendations