The Philadelphia region still has 70 Superfund sites, with 11 in Chester County, that have not been cleaned up, and some are being eyed for redevelopment, writes Frank Kummer for the Philadelphia Inquirer.

Thousands of Chester County residents live within a mile of these sites, which include the Kimberton site in East Pikeland Township, Recticon/Allied Steel site in East Coventry Township, and the Paoli Rail Yard.

Environmental Protection Agency officials are using the Metal Bank Superfund Site in Philadelphia that was recently purchased by Revolution Recovery as an example of their potential. The agency has started rolling back the environmental rules set during the Obama Administration.

However, it has emphasized that it will focus on the core mission of the remediation and redevelopment of Superfund sites. EPA officials also said they intend to make a small push to get the sites redeveloped while still ensuring they are safe.

Environmentalists like David Masur, executive director of PennEnvironment, are worried about the actual outcome of this push. Currently, the Trump Administration is attempting to reduce EPA funding.

“It’s a very high-risk game, given the dangerous nature of some of these sites,” he said.

Read more about the Superfund sites in the Philadelphia Inquirer here.