Updated April 2026
Water Safety Tools
Use EPA compliance data to check your water quality by ZIP code, look up contaminant levels, and understand what is in your drinking water across 190 water systems.
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Is My Water Safe? Checker
Enter your ZIP code to find your water system, see its Safety Score and grade, contaminant count, and violation history.
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Contaminant Lookup
Search for a water system to see all detected contaminants, which ones exceed EPA limits, and how levels compare to maximum contaminant levels.
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Health Risk Report by ZIP
Get a combined environmental health score for your ZIP code, cross-referencing water safety and air quality data from EPA.
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How Healthy Is My Environment?
Answer 4 questions about your location, exposure, and family to get a personalized environmental health assessment.
Data source: These tools use EPA Safe Drinking Water Information System (SDWIS) compliance data. Water quality can change over time; check with your local water utility for the most current results.