Mealey's (April 4, 2018, 3:36 PM EDT) -- HAMMOND, Ind. — United States Steel Corp. agreed April 2 to pay a $600,000 civil penalty for violating the Clean Water Act as a result of two wastewater spills in 2017 that discharged hexavalent chromium into a waterway that flows into Lake Michigan, according to a consent decree filed in Indiana federal court (United States, et al. v. United States Steel Corp., No. 18-cv-125, N.D. Ind.)....