The Environmental Protection Agency (EPA) has been rolling out waves of data showing which locations across the country have the highest levels of PFAS contamination in drinking water systems.

The findings, collected and put on a map by the Environmental Working Group (EWG), show that the Eastern side of the country has a significantly higher number of locations with levels of PFAS chemicals above accepted limits than the West.

The data is from the EPA's Fifth Unregulated Contaminant Monitoring Rule, known as UCMR 5, requiring U.S. water utilities to test drinking water for 29 individual PFAS compounds.

Earlier this month, the EPA released the ninth wave of data, which showed that 7 million more Americans were drinking water contaminated with PFAS chemicals than what was found in the

See Full Page