Structured U.S. drinking water quality data for 41,000+ ZIP codes, including EPA violations, lead/copper levels, PFAS, radon, flood risk, and Home Safety Scores.
US drinking water quality data by ZIP code: EPA violations, typed lead/copper evidence, PFAS, radon, flood risk, and Home Safety Scores for 42,679 ZIPs. 66 federal/state sources. Updated weekly. CC BY 4.0.
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