(October 26, 2016, 2:41 PM EDT) -- PHILADELPHIA — A group of plaintiffs filed a lawsuit on Oct. 13 in the U.S. District Court for the Eastern District of Pennsylvania against 3M Co. and other defendants, contending that their products contaminated drinking water with toxic chemicals when they were used at two U.S. Naval facilities near Philadelphia and migrated into the groundwater (Leonard Grande, et al. v. 3M Company, et al., No. 16-5380, E.D. Pa.)....