Chemical tank implosion at Longview paper mill kills multiple, injures several
Synopsis
A white liquor tank implosion at the Nippon Dynawave Packaging mill in Longview, Washington has killed an undisclosed number of workers and critically injured several more. Washington Governor Bob Ferguson confirmed fatalities and deployed state ecology responders — but the death toll remains officially unreleased, underscoring the scale of the emergency still unfolding.
Key Takeaways
A chemical tank containing white liquor ruptured early Tuesday at Nippon Dynawave Packaging Company in Longview, Washington .
An undisclosed number of workers were killed; multiple others sustained critical injuries including chemical burns.
Washington Governor Bob Ferguson confirmed fatalities and deployed state Department of Ecology responders to the scene.
Officials confirmed no ongoing public threat , but urged residents to stay away from the area.
The facility is a kraft pulp and paper mill located near the Washington–Oregon border along the Columbia River .
The cause of the implosion remains under investigation ; the exact death toll has not been officially released.
A chemical tank implosion at the Nippon Dynawave Packaging Company pulp and paper mill in Longview, Washington, killed an undisclosed number of workers and left multiple others critically injured on Tuesday, according to a joint statement from local authorities and company officials. The incident, involving a ruptured tank of white liquor — a chemical used in the paper-pulping process — triggered a hazardous materials response and prompted officials to urge residents to stay clear of the area.
What Happened
The tank containing white liquor ruptured early Tuesday at the Nippon Dynawave facility, causing what officials described as 'multiple critical injuries' and fatalities. The exact death toll has not been publicly released. Multiple workers suffered chemical burns and other injuries and were transported to nearby hospitals.
The Longview Fire Department confirmed it was responding to a hazardous materials incident involving the implosion of a vat of chemical treatment product. Officials stated there was no ongoing threat to the general public, but residents in the vicinity were asked to avoid the area while emergency crews remained on scene.
Governor's Response
Washington Governor Bob Ferguson expressed condolences and confirmed state-level deployment to the site. 'My team and I are tracking developments in Longview closely after a major chemical explosion. Responders from our state Department of Ecology have been deployed to the scene,' Ferguson said.
'I'm deeply saddened to hear that there have been fatalities. My thoughts are with the workers and their families, and with the first responders,' he added.
About the Facility
The Nippon Dynawave Packaging Company facility is situated near the Washington–Oregon border along the Columbia River. According to the Washington State Department of Ecology, it operates as a kraft pulp and paper mill and a liquid packaging plant — the kind of industrial site where white liquor, a caustic chemical compound, is routinely used in large volumes during the pulping process.
Investigation Under Way
The cause of the implosion remains under active investigation. Responders from the Washington State Department of Ecology have been deployed alongside local law enforcement and fire department personnel. No timeline for the conclusion of the investigation has been announced. Further updates on the casualty count are expected as authorities release information.
Point of View
A pattern seen in previous US industrial accidents. Nippon Dynawave is a major packaging supplier, and this incident will draw scrutiny to white liquor handling protocols across kraft mills nationwide. Governor Ferguson's swift public statement is notable, but the deployment of the Ecology Department rather than OSHA as the lead agency signals that environmental contamination along the Columbia River is being treated as a parallel emergency. The broader question — whether routine safety inspections had flagged this tank — will define the political and legal fallout.
NationPress
11 Jul 2026
Frequently Asked Questions
What caused the explosion at the Nippon Dynawave mill in Longview?
A tank containing white liquor, a caustic chemical used in the paper-pulping process, ruptured at the Nippon Dynawave Packaging Company facility in Longview, Washington, early Tuesday. The precise cause of the rupture remains under active investigation by local and state authorities.
How many people were killed in the Longview paper mill incident?
An undisclosed number of workers were killed in the chemical tank implosion. Authorities and company officials confirmed fatalities in a joint statement but have not publicly released the exact death toll as of the latest reports.
What is white liquor and why is it dangerous?
White liquor is a highly caustic chemical solution used in the kraft pulping process to break down wood fibres into pulp. It contains sodium hydroxide and sodium sulphide, and exposure can cause severe chemical burns — consistent with the injuries reported among workers at the Longview facility.
What is Washington Governor Bob Ferguson doing in response?
Governor Bob Ferguson confirmed he was closely tracking developments and deployed responders from the Washington State Department of Ecology to the scene. He expressed condolences to the families of the deceased workers and first responders in a public statement.
Is there a public safety threat from the Longview mill incident?
Officials stated there is no ongoing threat to the general public. However, residents near the Nippon Dynawave facility were urged to stay away from the area while emergency crews continued working at the scene, and the environmental impact on the nearby Columbia River is being assessed.
