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Cause of death released for 11 victims in Washington chemical tank rupture

Published June 12, 2026 · Updated June 12, 2026 · By Joseph Williams

Cause of Death Released for 11 Victims in Washington Chemical Tank Rupture

Cause of death released for 11 victims - Authorities in Washington state have officially disclosed that all 11 individuals who lost their lives in a catastrophic chemical tank explosion at a pulp and paper mill in Longview were killed by severe chemical burns, according to a statement released Thursday. The incident, which occurred on May 26, 2026, involved the failure of a 900,000-gallon tank containing white liquor—a key component in the paper-making process—at the Nippon Dynawave Packaging facility. The site is situated approximately 50 miles northwest of Portland, on the border between Washington and Oregon.

Details of the Tragedy

The rupture caused a massive blast that devastated much of the facility, leaving employees injured and triggering an urgent search for the bodies of the missing workers. Officials confirmed that all remains of the 11 deceased were recovered, marking a critical milestone in the investigation. The tank, which held a mixture of sodium hydroxide, sodium sulfide, and disodium carbonate, was roughly two-thirds full at the time of the incident. These chemicals, commonly used in breaking down wood into pulp, are highly caustic and can cause rapid, severe burns upon contact.

Firefighters from the Longview Fire Department were among the first responders, and they provided a photograph of the unstable tank that ruptured. The image captured the immediate aftermath, highlighting the scale of the disaster and the hazardous conditions at the scene. Emergency crews worked tirelessly to contain the situation, but the force of the blast and subsequent chemical release proved fatal for the majority of the victims.

Autopsy Findings and Victims

Autopsies conducted by the Cowlitz County Coroner’s Office revealed that the primary cause of death for the 10 employees who were examined was alkaline chemical burns. Among the victims, eight individuals suffered burns from the same cause, including Jared Ammons (35), Norman Barlow (58), Gilberto Bernal (52), Bradley Covington (27), Tyler Covington (29), Clinton Doran (26), John Forsberg (51), and Dale Miller (54). A separate report from the Multnomah County Medical Examiner noted that Dillon Miller (27), who was transported to a hospital in Portland, died as a result of sodium hydroxide and sodium sulfide burns, consistent with the other victims.

“This horrific tragedy is one of the most significant events our community has faced since the eruption of Mount St. Helens in 1980,” stated Cowlitz County Coroner Dana Tucker, emphasizing the gravity of the situation.

The remaining two victims, Robert Wilson (48) and Braydon Finkas (38), had additional contributing factors to their deaths. Wilson succumbed to alkaline chemical burns combined with blunt force injuries, while Finkas died from chemical burns and “asphyxia due to aspiration of a foreign object,” as per the coroner’s office. These findings underscore the complex nature of the incident, where both direct exposure and secondary trauma played roles in the fatalities.

Investigation and Safety Measures

State and federal agencies are currently collaborating to determine the sequence of events leading to the tank’s rupture. The Washington State Department of Labor and Industries has announced that its investigation will focus on identifying any safety violations that may have contributed to the disaster. The probe is expected to span several months, with officials aiming to pinpoint root causes and recommend preventive measures for similar occurrences in the future.

While the manner of death for all victims was officially ruled an accident, the tragedy has sparked widespread concern about industrial safety protocols. The facility, which operates in a region known for its manufacturing activity, is now under scrutiny. Investigators are examining factors such as equipment maintenance, chemical storage practices, and emergency response procedures to assess potential lapses.

Community Impact and Response

The incident has left a profound impact on the local community, with many residents expressing shock and grief over the loss of life. Longview, a town with a population of around 18,000, has seen its share of industrial accidents, but this event stands out for its scale and the number of casualties. Local officials have pledged to support affected families and ensure transparency in the findings of the investigation.

Emergency personnel and first responders have been commended for their swift action in mitigating the disaster’s effects. The fire department’s photo of the ruptured tank has become a poignant symbol of the tragedy, circulating widely on social media and news outlets. It serves as a stark reminder of the dangers posed by industrial chemical storage and the importance of robust safety measures.

As the investigation continues, questions remain about the exact circumstances that led to the tank’s failure. Was it a structural weakness, a human error, or a combination of factors? The answers could have far-reaching implications for the industry and highlight the need for stricter oversight. Meanwhile, the victims’ families are seeking closure, with the release of detailed autopsy results providing critical insight into the cause of their loved ones’ deaths.

Looking Ahead

The Cowlitz County Coroner’s Office has also shared additional context about the chemicals involved. White liquor, while essential in the paper-making process, is a potent alkaline solution capable of causing extensive damage in short order. Its composition—sodium hydroxide, sodium sulfide, and disodium carbonate—means that even a small leak can be catastrophic, especially in an enclosed space where exposure is prolonged.

Experts suggest that the high concentration of these chemicals, coupled with the tank’s size and location within the facility, likely exacerbated the situation. The 900,000-gallon tank’s failure released a significant amount of the mixture, creating a hazardous environment for nearby workers. Officials are now working to determine whether the tank’s design, maintenance schedule, or operational conditions contributed to the disaster.

With the investigation ongoing, the community remains hopeful that lessons will be learned to prevent such tragedies in the future. The tragedy has also prompted calls for increased safety training and improved emergency preparedness in industrial settings. As the report continues to unfold, the focus remains on both accountability and prevention, ensuring that the 11 lives lost are not in vain.

The release of the cause of death for the victims has provided clarity to the families and the public, but it has also intensified the demand for comprehensive reforms. The incident serves as a sobering reminder of the risks associated with chemical storage and the critical role of safety standards in safeguarding workers’ lives. As state and federal agencies work to uncover the full story, the tragedy underscores the importance of vigilance in industrial safety practices.

Local leaders have expressed their condolences to the families of the victims, acknowledging the human toll of the disaster. The event has also reignited discussions about the environmental impact of such accidents, with concerns about potential contamination of nearby water sources. While the immediate focus is on the victims, the long-term effects on the region’s ecosystem and workforce safety will continue to be monitored closely.

With the cause of death confirmed and the investigation underway, the nation awaits further details on how this incident unfolded and what steps will be taken to prevent similar occurrences. The families of the 11 victims, along with the broader community, are now looking to the findings as a guide for future improvements in industrial safety and chemical management.