(August 19, 2019, 8:57 AM EDT) -- CONCORD, N.H. — Defendants that were sued for allegedly contaminating the drinking water in a New Hampshire community filed a brief in New Hampshire federal court on July 16, contending that it should not grant class certification on grounds that the plaintiffs cannot meet the requirements under Federal Rule of Civil Procedure 23(b) (Kevin Brown, et al. v. Saint-Gobain Performance Plastics Corporation, et al., No. 16-242, D. N.H.)....