11 presumed dead in Washington paper mill chemical tank rupture

At least 11 workers killed and 9 missing and presumed dead in the tank rupture at the paper mill facility.
Eleven people are gone. Nine remain unaccounted for.
The death toll from the tank rupture continued to rise as crews resumed their search Wednesday.

On a Tuesday afternoon in Longview, Washington, a chemical tank holding nearly two million liters of destructive material ruptured at the Nippon Dynawave Packaging mill, killing at least eleven workers and leaving nine more unaccounted for and presumed dead. What began as an industrial failure has become one of the gravest workplace tragedies the United States has witnessed in years, touching not only the families of those lost but the broader community and the Columbia River that runs nearby. Rescue has given way to recovery, and the deeper questions — of how such a system fails, and why workers remain so vulnerable within it — will outlast the search itself.

  • A catastrophic tank rupture at a Washington paper mill killed at least eleven workers in an instant, with nine more still buried in the wreckage and presumed dead.
  • Nearly two million liters of a highly destructive chemical mixture were released, sending contamination into the surrounding area and into the Columbia River, alarming environmental authorities across the region.
  • Rescue operations have been quietly abandoned — crews now move through the debris knowing they are recovering the dead, not saving the living.
  • Officials report no confirmed threat to regional air or drinking water, but testing continues, and the full environmental toll remains unresolved.
  • Investigators have yet to determine why the tank failed, leaving the community to grieve without answers while the machinery of inquiry slowly turns.

On Tuesday afternoon, a chemical tank ruptured at the Nippon Dynawave Packaging Company mill in Longview, Washington, killing at least eleven people in what authorities are calling one of the deadliest workplace accidents the United States has seen in years. By Wednesday, the confirmed toll had climbed further — an injured worker died overnight — and nine more employees remained missing in the wreckage, their fates already presumed by officials even as crews continued searching.

The tank held approximately 1.9 million liters of a highly destructive chemical mixture. Its failure sent a significant volume of contamination into the surrounding area, and some of that material reached the nearby Columbia River, triggering immediate environmental concern. Authorities say air and drinking water supplies have not been compromised, though testing is ongoing.

What was once a rescue operation is now a recovery. Officials have made clear they expect no survivors. The search continues — methodical, sorrowful — as crews move through debris to bring the missing home.

Longview is a city with deep roots in timber and paper manufacturing, and the mill is part of Nippon Dynawave, a global packaging company. For the workers' families, the corporation's scale offers nothing. Eleven people are gone. Nine remain uncovered. Investigators will eventually reconstruct how a routine industrial operation became a mass casualty event, but that reckoning lies ahead. For now, the work is grief, recovery, and the slow accounting of what was lost.

On Tuesday afternoon, a chemical tank ruptured at the Nippon Dynawave Packaging Company mill in Longview, Washington, killing at least eleven people in what authorities now describe as one of the deadliest workplace accidents the United States has seen in years. By Wednesday, crews had resumed their search for nine workers still missing and presumed dead in the wreckage. The grim arithmetic kept shifting: another injured worker died overnight, pushing the confirmed and presumed death toll from ten to eleven.

The tank held a highly destructive chemical mixture—roughly 1.9 million liters of the substance, according to officials. When it failed on Tuesday, the rupture released a substantial volume of contamination into the surrounding area. Some of that chemical made its way into the nearby Columbia River, triggering immediate environmental concerns across the region.

Authorities have made clear they hold no expectation of finding additional survivors. The search has become a recovery operation rather than a rescue. Officials say the tank failure has not contaminated the region's air supply or drinking water systems, though testing remains ongoing to confirm the scope of environmental impact. The work of determining exactly what happened, and why the tank gave way, will take time.

This incident joins a sobering list of industrial catastrophes. In recent decades, the United States has experienced several workplace disasters of comparable or greater scale: a coal mine explosion, a fertilizer plant fire, and various other industrial failures that claimed dozens of lives. The specifics vary—the hazards differ, the industries differ—but the pattern is familiar: a system fails, workers are caught in the failure, and communities bear the aftermath.

The mill itself sits in Longview, a city in southwestern Washington with deep roots in timber and paper manufacturing. The facility is part of a global company, Nippon Dynawave, which operates packaging operations across multiple countries. For the workers and their families, the scale of the corporation offers no comfort. Eleven people are gone. Nine remain unaccounted for, their fates already determined by officials but their bodies still uncovered in the debris.

The search continues, methodical and sorrowful. Crews move through the wreckage knowing what they will find. Environmental teams test the water and air. Investigators will eventually piece together the sequence of events that led to the tank's failure. But for now, the focus remains on recovery—on bringing the missing home, on documenting what was lost, on beginning the long work of understanding how a routine industrial operation became a mass casualty event.

Authorities have made clear they hold no expectation of finding additional survivors.
— Officials overseeing the search
La Conversación del Hearth Otra perspectiva de la historia
Inventor

What made this tank rupture? Was there a warning sign?

Model

The source doesn't say. That's what investigators will be trying to figure out. Right now, all we know is that it failed on Tuesday and released 1.9 million liters of a highly destructive chemical.

Inventor

And the people who were in the tank or nearby—did they have any chance?

Model

No. Authorities have already said there's no hope of finding survivors. The nine still missing are presumed dead. One injured worker died overnight, so the toll keeps rising.

Inventor

How does this compare to other industrial disasters?

Model

It's being described as one of the deadliest U.S. workplace accidents in years. There have been coal mine explosions, fertilizer plant fires—this ranks with those kinds of events in terms of scale.

Inventor

What about the river? Is the community in danger?

Model

Some contamination reached the Columbia River, which is serious. But officials say the air and drinking water haven't been affected so far. They're still testing, though. That's ongoing.

Inventor

Who works at a place like this? Are these local jobs?

Model

The mill is in Longview, Washington, a city with a long history in timber and paper manufacturing. These are industrial jobs—the kind that have sustained communities in that region for decades. Now eleven of those workers are gone.

Inventor

What happens next?

Model

Recovery. Investigators will try to understand why the tank failed. Environmental teams will keep testing. But the immediate work is bringing the missing home and documenting what was lost.

Contáctanos FAQ