LONGVIEW, Wash. — Emergency responders are currently managing a hazardous materials incident at the Nippon Dynawave facility following a major chemical implosion that occurred early Tuesday morning. The Longview Fire Department reported that the incident, which involved a vat of white liquor, began at approximately 7:18 a.m.
Authorities have confirmed fatalities resulting from the event and search efforts continue for individuals who remain unaccounted for. While officials have stated there is no immediate threat to the general public, they have instructed residents to avoid the vicinity of Industrial Way while emergency crews, including hazmat teams, deputies, and Cowlitz County firefighters, remain on the scene.
Medical Response and Casualties
The impact of the implosion resulted in multiple injuries, with patients suffering from chemical burns and other trauma. Ten people, including one firefighter, were initially reported injured and transported to PeaceHealth St. John Medical Center in Longview and PeaceHealth Southwest Medical Center in Vancouver.
A spokesperson for PeaceHealth later clarified that the medical system received nine patients directly from the incident. Of those, one patient died, two were transferred, and six remain in fair condition. the injured firefighter was treated and released. Officials have not provided a specific count for those who remain missing.
State Response and Next Steps
Governor Bob Ferguson has been briefed by leaders from state agencies, including the Department of Ecology and the Department of Labor and Industries, which have teams currently on-site. The Governor has also placed National Guard teams on alert as the situation evolves.
Moving forward, authorities are likely to focus on the containment of any remaining hazardous materials and the completion of search-and-rescue operations. An investigation into the cause of the vat implosion could follow once the site is declared secure, though officials have not yet determined what triggered the failure.
Frequently Asked Questions
What is the Nippon Dynawave facility?
According to the Washington State Department of Ecology, it is a Kraft pulp and paper mill and liquid packaging plant.

Is there an ongoing threat to the public?
Officials have stated there is no immediate threat to the public, though they have requested that residents stay away from the Industrial Way area.
What was the cause of the implosion?
The cause has not yet been determined; however, the incident involved a vat of white liquor chemical treatment product.
How will the findings from this incident influence future safety protocols for pulp and paper mills in the region?
