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.
They organize published public-water records. They do not test a home, confirm an address-level supplier, or issue a safety verdict.
Discover
Resolve a place or explore the national map.
Understand
Inspect findings, monitoring gaps and sources.
Act
Compare treatment requirements before products.
Choose a tool
Start with location when you do not know your supplier. Start with a checker when you have a specific contaminant question.
Identify a supplier
Find My Water
Resolve a city or ZIP to candidate public water systems before reading a report.
Open toolCheck published PFAS data
PFAS Checker
Check a city report for published PFOA, PFOS and PFHxS findings and their evidence states.
Open toolCheck published lead data
Lead Checker
Review whether lead appears in a city’s published public-water record and open the full context.
Open toolSearch the knowledge graph
Water Quality Search
Search systems, cities, contaminants, research and treatment intelligence from one index.
Open toolCompare evidence
Compare Water Systems
Place up to three published system profiles side by side without an arbitrary winner.
Open toolCompare technologies
Treatment Comparison
Compare treatment technologies by target, evidence strength, maintenance and limitations.
Open toolMore ways to explore
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.