"In a rare unilateral action, Delaware regulators have commissioned a wide-ranging environmental evaluation at the idled Evraz Claymont Steel plant, a longtime source of problems ranging from metallic soot and mercury to toxic contaminants in soil and groundwater.

Department of Natural Resources and Environmental Control Secretary Collin O'Mara said the work by a contractor, to begin in mid-July, will cover the entire 425-acre facility, which ceased regular operations along Philadelphia Pike just south of the Pennsylvania line in December.

O'Mara described the move as an effort to document pollution risks and prepare for changes in ownership or use."

Jeff Montgomery reports for the Wilmington News Journal June 1, 2014. [2]