(November 10, 2016, 8:11 AM EST) -- PRESCOTT, Ariz. — WestRock LP on Nov. 1 agreed to pay the U.S. Environmental Protection Agency $1.6 million and transfer nearly $3 million in stock to the agency to partially reimburse it for cleaning up contamination at a former wood treating plant in Prescott, according to a docket entry in Arizona federal court (United States of America v. WestRock LP, No.16-CV-08247, D. Ariz.)....