(April 17, 2017, 8:21 AM EDT) -- TRENTON, N.J. — NL Industries Inc. filed a brief in New Jersey federal court on April 7, contending that environmental advocacy groups that contend that the company is liable for groundwater contamination lack evidence capable of showing that any alleged injuries are “fairly traceable” to any action by the company (Raritan Baykeeper Inc., et al. v. NL Industries Inc., et al., No. 09-4117, D. N.J.)....