According to the document, PFAS are a large class of chemicals that have been used in industry and consumer products since the 1940s. People can be exposed to the chemicals through consumer products, occupational contact and/or by consuming food or water that contains PFAS. The U.S. EPA announced in April 2024 the final National Primary Drinking Water Regulation for six PFAS chemicals. The regulation will apply to public drinking water systems when fully implemented. … The EPA document states that potable reuse facilities can closely monitor different chemicals that enter the system. The systems can leverage the Clean Water Act or upgrade their treatment systems to prevent PFAS from entering the system.