https://www.post-gazette.com/breaking/2007/06/08/u-s-steel-agrees-to-clairton-coke-works-cleanup/stories/200706080186
U.S. Steel agrees to Clairton Coke Works cleanup | Pittsburgh Post-Gazette
The Allegheny County Health Department today announced a consent agreement with U.S. Steel Corp.
u s steelclairton coke works