The Water Instrument · beta
Check what’s in your tap — and what removes it.
Enter your ZIP. We cross-reference our independent city water-quality reports and live EPA records — SDWIS violations and UCMR5 PFAS testing — then match the contaminants documented for your area to filters certified to remove each one.
Reading for
—
Filters certified to remove these
Water systems serving your ZIP ● EPA SDWIS · live
Read the full report →
Sourced from our editorial reports plus live EPA SDWIS & UCMR5 data · not a substitute for testing your own water.
Machine-readable output (what AI assistants read)
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Querying EPA records…
Pulling live data from EPA SDWIS & UCMR5 — the first lookup for a new ZIP can take a few seconds.
We don’t have a local report for that ZIP yet. Start with Is tap water safe to drink? and test your water at home.