EPA releases maximum contaminant levels for PFAS in drinking water

“Today, the U.S. Environmental Protection Agency (EPA) announced the much-anticipated National Primary Drinking Water Regulation (NPDWR) for six per- and polyfluoroalkyl substances (PFAS) under the Safe Drinking Water Act (SDWA). The regulation, like NPDWR for other chemicals, includes enforceable maximum contaminant levels (MCLs), as shown below. The new federal MCLs are considered the maximum allowable concentrations in parts per trillion (ppt) of select PFAS in public drinking water systems.

The new federal regulations establish a common national threshold for allowable concentrations of PFAS in drinking water, moving away from a patchwork of state rules and regulations. Individual states are still allowed to establish their own drinking water rules and regulations for PFAS, provided they are lower than the federal MCLs. However, if current state-enforceable levels are higher than the federal MCLs, public water systems within that state must abide by the federal levels.”

Quote from www.barr.com