Utility layer · evidence first

Water tools for the next question.

Identify the system behind a tap, inspect published contaminant records, compare evidence and understand treatment options without turning gaps into conclusions.

Start with my water Explore the map

Seven tools, in journey order

Discover, understand, then act

Discover

Find the record that applies to you

Identify a supplierFind My WaterResolve a city or ZIP to candidate public water systems before reading a report.Open tool →Search the knowledge graphWater Quality SearchSearch systems, cities, contaminants, research and treatment intelligence from one index.Open tool →

Understand

Read what was measured

Check published PFAS dataPFAS CheckerCheck a city report for published PFOA, PFOS and PFHxS findings and their evidence states.Open tool →Check published lead dataLead CheckerReview whether lead appears in a city’s published public-water record and open the full context.Open tool →Read my resultsRead your test resultsType or paste a lab or kit report and see each line against its federal or EPA reference.Open tool →Compare evidenceCompare Water SystemsPlace up to three published system profiles side by side without an arbitrary winner.Open tool →

Act

Turn a finding into a decision

Compare technologiesTreatment ComparisonCompare treatment technologies by target, evidence strength, maintenance and limitations.Open tool →Match a concernFilters by concernStart from the problem and see the certification to check before any product.Choose a concern →

Before you trust a city result

A city is not always a supplier.

Utility boundaries can overlap and wholesalers can serve consecutive systems. Use Find My Water and confirm the utility name on a bill before treating a city result as your household’s record.

Resolve my location