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What are PFAS? Perfluoroalkyl and polyfluoroalkyl substances (PFAS) are a large group of man-made chemicals that have been used in industry and consumer products worldwide since the 1950s. • PFAS do not occur naturally, but are widespread in the environment. • PFAS are found in people, wildlife and fish all over the world.
What is EPA doing to make our drinking water safe? EPA is taking a key step to protect public health by proposing a National Primary Drinking Water Regulation (NPDWR) to establish legally enforceable levels, called Maximum Contaminant Levels (MCLs), for six PFAS known to occur in drinking water.
The infographic and fact sheet below provide information about PFAS and EPA's actions to address PFAS in the environment. You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
This page includes links for the ITRC PFAS fact sheets. The fact sheets are available as PDF files. Several tables of supporting information are published separately so that they can be updated periodically by ITRC.
PFAS exposure for approximately 100 million Americans served by public drinking water systems. The Rule . As the lead federal agency responsible for protecting America’s drinking water, EPA is using the best available science on PFAS to set national standards. PFAS can often be found together in water and in varying combinations as mixtures.
General Fact Sheet: EPA's Final Rule to Limit PFAS in Drinking Water (pdf) (163.59 KB) Frequently Asked Questions and Answers: Final PFAS National Primary Drinking Water Regulation (pdf) (218.97 KB)
Per- and polyfluoroalkyl substances (PFAS) are a group of more than 9,000 human-made chemicals used since the 1940s in many industrial processes and in a wide range of commercial and household products. Perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS) are two of the most closely studied PFAS.