(February 2, 2016, 2:24 PM EST) -- CHARLOTTE, N.C. — A federal judge in North Carolina on Jan. 29 denied a motion filed by Duke Energy Carolinas LLC in which the company sought certification for an interlocutory appeal in a groundwater contamination case, ruling that the company failed to carry its burden of demonstrating that there were “extraordinary circumstances” warranting the appeal (Yadkin Riverkeeper, et al. v. Duke Energy Carolinas LLC, No. 14-00753, M.D. N.C.)....