Chemours challenges US EPA drinking water advisory for PFAS

July 14, 2022

Read the full article by Cheryl Hogue (C&EN)

"As part of a challenge to a recent US Environmental Protection Agency health advisory for drinking water, Chemours is using a novel argument linked to a recent Supreme Court ruling.

The fluorochemical manufacturer says the EPA’s health advisory, issued under the Safe Drinking Water Act, is unconstitutional. The company’s argument echoes a June 30 high court decision that limited the EPA’s ability to reduce greenhouse gas emissions from power plants.

In a July 13 court filing in federal appeals court, Chemours takes aim at a lifetime health advisory for per- and polyfluoroalkyl substances (PFAS) used in its GenX process for manufacturing fluoropolymers. They are hexafluoropropylene oxide dimer acid (HFPO-DA) and its ammonium salt. HFPO-DA taints drinking water supplies near and downstream of a Chemours plant in North Carolina."