(December 13, 2019, 2:08 PM EST) -- CONCORD, N.H. — Defendants who have been sued for allegedly contaminating the drinking water in a New Hampshire community on Dec. 10 moved in federal court for leave to file a supplemental memorandum opposing class certification for the plaintiffs on grounds the lead plaintiffs are actually no longer members of the proposed class (Kevin Brown, et al. v. Saint-Gobain Performance Plastics Corporation, et al., No. 16-242, D. N.H.)....