Mealey's (January 24, 2017, 12:51 PM EST) -- PITTSBURGH — A federal judge in Pennsylvania on Jan. 23 denied a motion by a third-party defendant seeking to try third-party claims separately in a case where two environmental advocacy groups sued a glass manufacturer for groundwater contamination, finding that the third-party defendant did not show that separate trials were necessary (PennEnvironment, et al. v. PPG Industries Inc., et al., No. 12-342, W.D. Pa.; 2017 U.S. Dist. LEXIS 8683)....