What’s in your water?
Public water supplies are tested regularly to ensure tap water meets the standards set by the U.S. Environmental Protection Agency (EPA), as well as state and local regulations.
Enter your zip code to see the specific contaminants in your tap water, how they can affect you, and how to best protect yourself and your family.

Most common contaminants found

PFAS
Risk of potential exposure
High filter effectivness
Very low exposure to some PFAS chemicals has been linked to cancer, thyroid disease, weakened childhood immunity and many other health problems.
Learn more

Popular locations

New york
New York city system
8
Contaminants exceed EWG health guidelines
En savoir plus
Los Angeles
Department of water and power
6
Contaminants exceed EWG health guidelines
En savoir plus
Chicago
City of Chicago
8
Contaminants exceed EWG health guidelines
En savoir plus
Includes chemicals detected in 2017-2019 for which annual utility averages exceeded an EWG-selected ...
bicycle animation