"The most high-profile chemicals under fire from the Biden administration likely permeate almost half of U.S. tap water systems, according to a new study from the U.S. Geological Survey that raises yet more concerns about the sprawling family of compounds.
The first-of-its-kind report offers yet more ammunition to regulatory proponents who have pushed for a strong-armed approach to cracking down on PFAS. Their push has already sparked significant results, with the Biden administration tackling the chemicals through a range of statutes as regulators seek to bring the crisis under control.
In the report released Wednesday, scientists found that both private and government-regulated public water sources contain one or more types of PFAS. That proliferation extends to “at least 45% of the nation’s tap water,” according to USGS estimations, with the number possibly higher."