(October 16, 2017, 7:01 AM EDT) -- TRENTON, N.J. — NL Industries Inc. on Sept. 29 filed a brief in New Jersey federal court arguing that the environmental groups that sued it for allegedly contaminating groundwater “still have not produced sufficient evidence to establish that they have standing” after more than eight years of litigation (Raritan Baykeeper Inc., et al. v. NL Industries Inc., et al., No. 09-4117, D. N.J.)....