PFAS and Your Drinking Water


PFAS – or per- and polyfluoroalkyl substances – are a group of man-made chemicals. Compounds such as PFOA, PFOS, PFHxS, GenX, PFNA, and PFBS are part of the same class of chemicals and are referred to as PFAS. 

They are found in a wide range of everyday products and used in many industrial processes. For example, PFAS have been used in stain-resistant and water-resistant textiles, fast food wrappers, cosmetics, paper products, and non-stick cookware. They have also been used to make some firefighting foams. Because of their widespread use, these products are found in water, air, and soil across the globe.

U.S. EPA researchers and others are working to better understand PFAS and the effect of these substances on people and the environment. The research has led to the government toward establishing Maximum Contaminant Levels (MCLs) for PFOA and PFOS in drinking water to limit exposure to these compounds. These levels will be based on human studies in populations exposed to these man-made chemicals. Additionally, the regulations will set a Hazard Index for the cumulative levels of four other PFAS chemicals. 



Agency for Toxic Substances and Disease Registry (ATSCR) - Information on “PFAS and Your Health”:

ATSCR - PFAS Exposure Routes: PFAS chemical exposure | ATSDR (

Ohio EPA’s - PFAS Action Plan for Drinking Water: PFAS Action Plan for Drinking Water | Ohio Environmental Protection Agency

Ohio Department of Health -Factsheet on PFAS:  Factsheet-PFAS+In+Drinking+Water-2022.01.pdf (