Check your water test results
Enter a result from a lab report or home test kit to see how it compares with EPA's limit, and with your utility's own testing if you want.
This runs in your browser, so nothing you type is sent anywhere. It is general information, not a diagnosis or medical advice.
Compare with your utility's results (optional)
Getting a reliable result
- Use a certified lab for anything that matters. Home test strips are screening tools. They can show a high level but often can't measure the low levels that matter for lead, arsenic and PFAS (strips cannot measure PFAS at all). Your state keeps a list of certified drinking water labs, and many utilities and health departments test for lead free.
- Lead: take a "first draw" sample, from water that sat in the pipes at least 6 hours (first thing in the morning), from the tap you drink from.
- PFAS: use a lab that runs EPA Method 533 or 537.1. Results are in parts per trillion (ppt, ng/L).
- One high result? Retest. Results vary from sample to sample, so confirm before spending money on treatment.
- On a private well? See what to test a well for.