The tank remains unstable, creating hazardous conditions for emergency personnel
On a Tuesday morning in Longview, Washington, the ordinary rhythms of industrial labor were shattered when a tank of white liquor — a caustic chemical woven into the quiet machinery of paper production — ruptured at the Nippon Dynawave mill, killing at least one person and leaving nine others unaccounted for. What was first understood as a contained vessel of 80,000 gallons proved to hold nearly a million, a miscalculation that speaks to how industrial danger can exceed the boundaries of human assumption. As emergency crews work cautiously around a structure still too unstable to fully enter, the event reminds us that the materials sustaining everyday life carry within them forces that demand constant, humble vigilance.
- A 7:15 a.m. explosion tore through the Nippon Dynawave facility in Longview, Washington, killing one worker and leaving nine colleagues missing in the immediate aftermath.
- The scale of the hazard was dramatically underestimated — the ruptured tank held roughly 900,000 gallons of highly corrosive white liquor, more than ten times what responders initially believed.
- Nine people, including eight mill employees and one firefighter, were hospitalized with injuries ranging from critical burns and chemical inhalation to minor wounds.
- Structural instability in the damaged tank is blocking full search and recovery operations, trapping responders in a dangerous holding pattern as the fate of the nine missing remains unknown.
- No community evacuation has been ordered, but the site remains sealed and hazardous, with state ecology officials deployed and Governor Bob Ferguson calling the disaster a source of deep sorrow for Washington.
Just after seven on a Tuesday morning, a tank holding white liquor — the corrosive alkaline chemical at the heart of paper production — ruptured at the Nippon Dynawave Packaging facility in Longview, Washington, roughly 130 miles south of Seattle. The explosion that followed killed at least one person, left nine workers unaccounted for, and sent nine others to hospitals with injuries ranging from critical burns and inhalation damage to minor wounds. Among the injured was a firefighter who had responded to the emergency.
What compounded the crisis was a stunning miscalculation. First responders initially believed the vessel held around 80,000 gallons of white liquor — a dangerous but manageable volume. Subsequent assessment revealed the tank actually contained approximately 900,000 gallons, with perhaps 90,000 gallons still trapped inside the damaged structure. The chemical, which contains sodium hydroxide and sodium sulfide, is a routine part of mill operations, but under sudden release it becomes catastrophically hazardous.
The tank remains structurally unstable, preventing crews from mounting a full recovery operation for the nine missing workers. The Longview Fire Department described conditions as complex and dangerous, with responders focused on stabilizing the structure before any deeper search can safely proceed. The scene is no longer burning, but the chemical threat and structural risk persist.
Nippon Dynawave employs around 1,000 people and produces the kind of everyday paper goods — tissue, cups, cartons, printer paper — that rarely draw public attention. The facility has seen trouble before; a wood-pile fire burned for days in July 2023, though without fatalities. Tuesday's explosion has proven far more devastating.
Governor Bob Ferguson expressed sorrow over the loss and confirmed that state ecology workers have been dispatched to assist local officials. Authorities have determined that no community evacuation is necessary, believing the chemical release is contained to the mill site, though the public has been urged to stay clear as recovery efforts — still in their earliest stages — continue under difficult and dangerous conditions.
A tank ruptured at a paper mill in Longview, Washington, on Tuesday morning, and the blast that followed has left one person confirmed dead, nine others unaccounted for, and nine more injured. The explosion happened at 7:15 a.m. at the Nippon Dynawave Packaging facility, about 130 miles south of Seattle, when a vessel containing white liquor—a highly corrosive alkaline chemical essential to paper production—gave way. The chemical, which contains sodium hydroxide and sodium sulfide, is routinely used in the mill's manufacturing process, but when confined under pressure and suddenly released, it becomes catastrophically dangerous.
The immediate toll was severe. Nine people injured in the blast were transported to hospitals, eight of them employees of the mill and one a firefighter who responded to the emergency. Their injuries ranged from critical burns and inhalation damage to minor wounds. The names and conditions of the injured have not been released pending family notification. What made the situation worse was a critical miscalculation about the tank's contents. Investigators initially believed the vessel held about 80,000 gallons of white liquor. Later assessments revealed it actually contained approximately 900,000 gallons—more than ten times the original estimate. Of that enormous volume, roughly 90,000 gallons may still be trapped inside the damaged tank.
Emergency responders have been unable to mount a full recovery operation because the tank itself remains structurally unstable, creating ongoing hazards for the crews trying to search for the missing nine and contain the chemical threat. The Longview Fire Department described the situation as complex and dangerous, with responders focused on reinforcing and stabilizing the structure before they can safely proceed with additional rescue and recovery work. The scene is no longer actively burning, but the chemical hazard persists, and the instability of the damaged tank means the danger is far from over.
The Nippon Dynawave facility is a significant employer in the region, with roughly 1,000 workers on its payroll. The mill produces tissue, printer paper, cups, plates, and cartons—the kind of everyday packaging most people never think about. This is not the first major incident at the site. In July 2023, a fire broke out in wood piles stored at the facility and burned for days, though that incident did not result in fatalities. Tuesday's explosion, however, has proven far more deadly and destructive.
Governor Bob Ferguson of Washington issued a statement expressing sadness over the fatalities and extending his thoughts to the workers, their families, and the first responders. The state has dispatched ecology workers to assist local officials in managing the environmental and safety dimensions of the disaster. Unlike some chemical incidents at industrial sites, authorities have determined that no evacuation order is necessary for the surrounding community, suggesting they believe the chemical release is contained to the immediate area of the mill. Still, the public has been urged to stay away from the site as emergency operations continue. Recovery efforts remain in their early stages, hampered by the structural damage and chemical hazards that persist at the scene.
Notable Quotes
Recovery efforts remain complex due to ongoing safety concerns at the site. Currently, the tank remains unstable, creating hazardous conditions for emergency personnel.— Longview Fire Department
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.— Washington Governor Bob Ferguson
The Hearth Conversation Another angle on the story
Why did it take so long to realize how much chemical was actually in that tank?
The initial assessment was probably based on standard operating capacity or design specs, not a physical measurement. When a tank ruptures, you're often working from paperwork first, reality second. By the time they physically checked, the damage was already done.
Nine people missing—does that mean they're trapped, or could they have been displaced by the blast?
The source doesn't specify. In an explosion of this magnitude, missing could mean buried in debris, scattered beyond the immediate search area, or simply unaccounted for in the chaos. That's why the recovery phase is so critical and so slow.
The tank is still unstable. What does that actually mean for the rescue effort?
It means every person who goes in to search is at risk of a secondary collapse or another chemical release. They have to shore it up structurally first—reinforce it, make sure it won't fail again—before they can safely dig through the wreckage. That's why this isn't a sprint; it's methodical and dangerous work.
Why no evacuation order if there's 900,000 gallons of corrosive chemical?
Likely because the chemical is contained or mostly contained to the mill grounds. White liquor is nasty, but it's not volatile like some industrial chemicals. It's not going to spread through the air for miles. The hazard is localized to the site itself.
This facility had a major fire just three years ago. Is there a pattern here?
One incident doesn't make a pattern, but it does raise questions. Two significant emergencies in three years at the same facility suggests either bad luck, aging infrastructure, or operational practices worth examining. That's the kind of thing regulators will be looking at now.