Following a deadly implosion at Nippon Dynawave paper mill, emergency crews work to flush corrosive water from Longview. LONGVIEW, Wash. — Emergency crews are continuing to work Thursday to flush contaminated water through Longview’s ditch system following the deadly implosion at the Nippon Dynawave paper mill. Officials said water affected by the release of corrosive white liquor is being moved away from residential areas and the city’s drinking water supply before being diluted and discharged into the Columbia River. The operation is being overseen by the U.S. Environmental Protection Agency (EPA) and the Washington Department of Ecology. …