Water Purity Science
Water Filter Contaminant Checker
Decode your municipal tap water quality. Enter your US ZIP code to fetch local Environmental Working Group (EWG) tap water database averages for lead, PFAS, arsenic, and chromium, and discover the exact filter technology you need.
Quick Preset Locations
Water quality report empty
Enter your zip code above to decode municipal contaminants, find utility company averages, and discover filter options.
Clean Water Protocol
Is your tap water safe to drink?
Use the CleanLabel app to check local water reports, track contaminants, and find certified water filter swaps for your home.