Mealey's (September 30, 2021, 1:40 PM EDT) -- SAN FRANCISCO — A split panel of the Ninth Circuit U.S. Court of Appeals on Sept. 29 reversed and remanded a district court’s ruling and held that hexavalent chromium constitutes solid waste and that a municipality can be considered a transporter of the chemical into groundwater under the Resource Conservation and Recovery Act (RCRA)....