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Every municipal water system in the country must test for, and limit, the presence of five PFAS chemicals within five years, according to new guidelines set by the federal government. It’s the first time these toxic chemicals have been regulated at the national level.
The Environmental Protection Agency (EPA) regulations limit the two most common PFAS chemicals — PFOA and PFOS — to four parts per trillion in drinking water, close to the lowest level at which the chemicals can be detected. The EPA also set a non-enforceable goal for these two compounds at zero, reflecting that “there is no level of exposure to these contaminants without risk of health impacts,” according to a press release.
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