The United States and the state of North Carolina have filed a civil lawsuit against Domtar Paper Company, alleging that hazardous substances were released from a former wood-treating and paper manufacturing site in Martin County, damaging natural resources, according to the lawsuit. The lawsuit alleges Domtar is responsible for damages related to releases at or near the former Weyerhaeuser Plymouth Wood Treating Plant Superfund Site. Domtar has owned and operated the site since 2007. The complaint alleges Weyerhaeuser, a predecessor company, conducted wood and paper manufacturing there from about 1957 to 2007 and disposed of untreated waste containing dioxins, furans and mercury. …The lawsuit alleges the contaminants reached groundwater affecting Welch Creek, the Roanoke River and the Albemarle Sound. …The U.S. and North Carolina are seeking damages for alleged injuries to natural resources, along with assessment costs, litigation costs and other relief the court finds appropriate.