A federal CSB report says the Nippon tank that exploded in Longview, Washington, last May had been inspected in July 2025 and deemed not fit for service, a finding central to investigations into the 11 fatalities.
A public-records video shows the Nippon Dynawave wood-pulp mill in Longview rupturing a tank and releasing hundreds of thousands of gallons of white liquor, killing 11 workers as spills spread into parking areas and ditches; rescue efforts were delayed, autopsies cite severe chemical burns as a factor in all deaths, and multiple agencies are investigating while the plant remains out of service and plans temporary storage tanks to restart.
The Cowlitz County Coroner’s Office released autopsy findings for 10 of the 11 Nippon Dynawave victims in Longview, with eight deaths caused by alkaline chemical burns and all fatalities ruled accidental; details include specific burns and injuries for a few victims, a case listed by Multnomah County for sodium hydroxide/sodium sulfide burns after a patient was treated in Portland, and the coroner noting that next of kin have been notified as state and federal investigations continue into the May 26 tank-implosion at the paper mill.
A chemical tank collapse at Nippon Dynawave's Longview paper mill in Washington released white liquor, killing 11 workers and prompting a major response from local authorities as investigators begin to determine the cause; the disaster ranks among the deadliest U.S. workplace incidents in recent decades.
Officials announced the recovery of the last missing worker from the Nippon Dynawave paper mill explosion in Longview, WA, bringing the death toll to 11; investigators continue probing the tank implosion that released hazardous white liquor, while officials say contaminated ditch water has been diluted and Longview's drinking water remains safe.
Longview, WA officials say all nine workers missing after Nippon Dynawave’s white liquor tank implosion have been recovered and identified. On Day 5, the final victim was located; the nine identified include Gilbert Bernal, Tyler Covington, Brad Covington, Robert Wilson, Dale Miller, Jared Ammons, Braydon Finkas, Clinton (CJ) Doran, and John Forsburg. The broader Nippon Dynawave incident involves 11 victims, with two having died at hospitals shortly after the blast; investigators continue to determine the cause while cleanup and environmental monitoring (including reports of dead fish) proceed.
A ruptured 900,000-gallon tank of caustic white liquor at Nippon Dynawave’s Longview mill spilled hundreds of thousands of gallons, prompting a federal investigation and a public push for accountability as families search for answers and recovery efforts continue. Experts say the tragedy likely stemmed from a complex mix of factors—tank design, vents, and timing—with a possible blocked relief valve causing an implosion. The plant’s safety history, inspections, and prior fines are under scrutiny, while officials stress that determining the exact cause will take time amid ongoing recovery and containment of contamination.
Recovery crews in Longview confirmed nine deaths from the Nippon Dynawave packaging mill chemical rupture, with two workers still missing; authorities will press on with searches and preserve evidence for investigation, while environmental agencies mitigate a caustic spill, monitor water quality, and coordinate cleanup and flushing of dikes to protect local waterways.
Eight people are confirmed dead and three remain missing after a tank containing more than 500,000 gallons of a caustic chemical collapsed at Nippon Dynawave Packaging in Longview, WA, injuring eight others. Recovery is slow due to hazardous chemicals and structural risks; investigators are probing the cause while responders decontaminate remains and themselves and avoid a dangerous zone.
A widow says her husband voiced safety concerns prior to the Nippon Dynawave explosion in Longview; investigators are examining unsafe conditions at the plant, as Gov. Bob Ferguson calls the implosion the deadliest industrial tragedy in state history.
Six of the nine missing workers were recovered after a chemical tank ruptured at Nippon Dynawave Packaging Co.’s Longview pulp-and-paper mill, bringing the death toll to 11. Recovery work is hampered by industrial hazards like exposed wiring and collapsed structures. Environmental officials are managing a spill of white liquor toward ditch systems feeding a nearby water source, with water testing showing the Columbia River remains safe for now and a flushing plan in place. The mill is shut down with limited staffing, and some workers are being paid during the disruption.
A chemical implosion at Nippon Dynawave in Longview has claimed the first identified victim, Gilbert Bernal, with nine others still missing, prompting GoFundMe campaigns and meal trains as authorities from sheriff, fire, and police continue the search and families seek aid.
At Nippon Dynawave Packaging’s Longview mill a ruptured 900,000-gallon tank of caustic white liquor released chemicals into the plant and reached the Columbia River; two people are confirmed dead and nine are presumed dead as investigators probe the cause, with the CSB opening an inquiry and recovery efforts continuing slowly due to hazards. Authorities say air and drinking water are not affected, and the mill—about 1,000 workers—remains a key local employer; the incident is being described as possibly the deadliest industrial disaster in modern Washington history.
A chemical tank rupture at Nippon Dynawave Packaging in Longview, WA, has now killed a second person, bringing the presumed death toll to 11 with nine missing. Authorities say there’s no hope of survivors and will continue daylight searches as crews monitor the ruptured 900,000-gallon white liquor tank amid ongoing investigations into the cause. The plant employs about 1,000 workers; injuries include a firefighter, and air and drinking water remain safe.
An 80,000-gallon chemical tank containing white liquor (sodium hydroxide and sodium sulfide) ruptured at Nippon Dynawave Packaging Co. in Longview, WA, killing at least one worker and leaving nine unaccounted for as first responders treated others for burns or inhalation; authorities said there is no immediate public threat and the cause is under investigation.