Two people died and nine others remain missing after a chemical tank imploded at a paper mill in Longview, Washington, on Tuesday [1, 2, 3].
The incident highlights the severe risks associated with industrial chemical storage and the potential for catastrophic structural failures in heavy manufacturing environments.
The implosion occurred on May 26, 2026, at the Nippon Dynawave Packaging Co. facility [4]. According to authorities, the damaged tank held approximately 900,000 gallons of white liquor, a chemical used in paper processing [1, 5].
Emergency responders confirmed that two fatalities have occurred [1]. The City of Longview said via AP that the second person died after being transported to the hospital for injuries [2].
Search and rescue operations continued as officials sought nine additional missing workers [1, 3]. Scott Goldstein, Cowlitz Fire and Rescue Chief, said, "At the moment, we are not aware of any rescues that are yet to be made" [5].
The rupture appears to have been caused by a structural failure of the tank [1, 5]. The scale of the implosion and the volume of the chemical involved created a complex recovery environment for first responders.
Local officials have not yet released the names of the deceased or the missing. The investigation into the exact cause of the structural collapse is ongoing.
“Two people died and nine others remain missing after a chemical tank imploded.”
This incident underscores the critical nature of containment integrity in the pulp and paper industry. White liquor is a highly caustic solution; a rupture of nearly one million gallons poses not only an immediate lethal threat to onsite personnel through physical trauma and chemical burns but also a significant environmental hazard to the surrounding Longview area.
