Mealey's (March 19, 2019, 2:07 PM EDT) -- WASHINGTON, D.C. — The U.S. Supreme Court on March 18 denied review of a groundwater contamination class action that a group of chemical companies argued should be reviewed to settle a conflict among federal appellate courts regarding the necessity of plaintiffs satisfying the predominance requirement to achieve class status (Behr Dayton Thermal Products LLC, et al. v. Terry Martin, et al., No. 18-472, U.S. Sup.)....