Buckeye Power, Inc., and the Dayton Power & Light Co., and Duke Energy Ohio, and FirstEnergy, and Ohio Power Company, and Ohio Valley Electric Corp., appellants, v. Scott Nally, Director of Environmental Protection, appellee : ERAC no. 12-256582, ERAC no. 12-296583, ERAC no. 12-316584, ERAC no. 17-776585, ERAC no. 12-256586, ERAC no. 12-666587 : ruling on appellee's motion to dismiss : rendered on June 20, 2013.