Mealey's (September 9, 2019, 12:42 PM EDT) -- WASHINGTON, D.C. — Two Tennessee-based environmental groups on Sept. 4 filed a motion in the U.S. Supreme Court to dismiss an appeal of a Sixth Circuit U.S. Court of Appeals ruling over whether the Tennessee Valley Authority’s (TVA) discharges from coal ash storage ponds violate the Clean Water Act (CWA), explaining that the parties had reached a settlement (Tennessee Clean Water Network, et al. v. Tennessee Valley Authority, No. 18-1307, U.S. Sup.)....