The federal government and the Allegheny County Health Department have sued Allegheny Ludlum Corp. and a contractor for alleged air pollution violations at a slag dump near Pittsburgh.
The lawsuit filed Monday in U.S. District Court, says Ludlum and Harsco, based in Camp Hill, have been violating the Clean Air Act by allowing nitrogen oxide, carbon monoxide and other pollutants into the air at a slag dump. The dump is near Ludlum's silicon steel plant in Natrona, about 25 miles northeast of Pittsburgh.
The suit seeks federal and state fines totaling up to $57,500 per day for alleged violations since an August 2007 inspection.
Ludlum spokesman Dan Greenfield said the company doesn't comment on litigation. A Harsco spokesman said the company is reviewing the lawsuit.