Mealey's ( April 27, 2023, 12:58 PM EDT) -- NEW YORK — A water authority engaged in a per- and polyfluoroalkyl substances (PFAS) contamination case against E.I. du Pont de Nemours & Co. (Old Dupont) and its affiliates filed a reply brief in New York federal court arguing that the court should enter partial final judgment to allow an appeal because Old DuPont’s speculation that the appeal would be moot if the water authority prevails on its claim for design defect cannot overcome the judicial efficiencies provided by an immediate appeal....