(January 3, 2017, 7:14 AM EST) -- ST. LOUIS — The Doe Run Resources Corp. on Dec. 21 filed an answer in Missouri federal court, arguing that a group of residents who contend that the company is liable for personal injuries and groundwater contamination from lead at a mining facility in Peru lack standing to bring their claim (Chris Collins, et al. v. Doe Run Resources Corporation, No. 16-2049, E.D. Mo.)....