What's in my water
What's actually in your tap water?
Enter your ZIP code for a full report on your water system — the contaminants EPA has recorded, how the measured levels compare to federal limits, PFAS monitoring, and the filters certified to remove each one.
How it works. We look up the public water system(s) serving your ZIP in EPA's Safe Drinking Water Information System and UCMR5 PFAS monitoring — both public domain — and build a plain-English report. Coverage is strongest for larger systems. A system-level record can differ from your home's tap; a certified lab test is the gold standard.