PurityRadar

Most people have no practical way to find out what's in their tap water. The data exists — the EPA and USGS publish it — but it's scattered across violation databases, monitoring records, and enforcement filings that were never meant to be read by the person drinking the water.

PurityRadar closes that gap. Search an address, city, ZIP, or utility name and get a 0–100 score for the water system serving it, with the contaminants driving that score broken out individually: PFAS, lead, nitrate, arsenic, trihalomethanes, and dozens more.

Three things set the reports apart. They show change over time, not just today's snapshot, so you can tell a one-off exceedance from a system with a pattern. They cover private wells, modeling area risk from USGS groundwater data instead of returning nothing the way most tools do. And they surface live boil-water advisories and local water news for your specific area, with a last-updated date attached to every figure.

Nothing is asserted without a citation. Scores are assembled from Safe Drinking Water Act violations, UCMR5 PFAS occurrence data, Lead & Copper Rule actions, enforcement history, and ambient monitoring — and each figure links back to the public record it came from. Where a report flags a specific contaminant, PurityRadar matches filters certified to reduce that contaminant and connects you with local providers.

Free to search, independent, and built to be checked rather than trusted.