CleanWaterGrade

Terms of Use & Regulatory Data Notice

Direct Answer: CleanWaterGrade provides educational tap water grades compiled from public US EPA UCMR5, EPA SDWIS, and USGS records. Our reports are for informational comparison only and are not a substitute for accredited laboratory testing at your specific residential tap.

1. Public Data Sources & Limitations

Municipal water quality varies seasonally and by neighborhood distribution pipe material. Lead and copper levels in particular depend heavily on your home's service line and interior plumbing solder. Always verify critical health decisions with a state-certified drinking water laboratory.

2. Independent Testing & Certifications

Filter performance ratings cite public NSF/ANSI 42, 53, 58, 372, and 401 certification sheets issued by NSF International, WQA, or IAPMO.