Mealey's (June 30, 2017, 9:24 AM EDT) -- TRENTON, N.J. — NL Industries Inc. on June 20 filed a brief in New Jersey federal court seeking to exclude an expert for the plaintiffs who sued the company for allegedly contaminating the local groundwater, contending that the expert’s opinion is “unreliable” (Raritan Baykeeper Inc., et al. v. NL Industries Inc., et al., No. 09-4117, D. N.J.)....