The federal proposal would have sweeping effects across the country, but Colorado could be impacted more than most.
A 2021 study by Public Employees for Environmental Responsibility (PEER) found that Colorado may have the most PFAS-contaminated sites of any state in the U.S. At the time, the EPA had identified roughly 21,000 sites in Colorado that were “handling PFAS” – thousands more than any other state.
The agency found around 120,000 such sites across the country.