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3 May 2010, 9:30 pm
– Michael Aubele, Valley News Dispatch, April 27, 2010 The federal Environmental Protection Agency and Allegheny County Health Department want a federal judge to sign off on an agreement with Allegheny Ludlum Corp. and Harsco Corp. intended to control slag dust at the Ludlum steel mill in Natrona. [read post]
