Washington State Tank Implosion Kills One and Leaves Nine Missing
Corrosive white liquor spilled from a 900,000-gallon tank after a rupture, leading to fatalities and missing workers as the cause remains under investigation.
- On Tuesday, May 26, 2026, a chemical tank ruptured at Nippon Dynawave Packaging in Longview, Washington, killing two people and leaving nine workers missing as recovery operations continue.
- Officials revised the initial tank capacity estimate from 80,000 to 900,000 gallons, revealing the storage tank held far more 'white liquor'—a caustic solution used to dissolve wood chips in paper production.
- Ten people, including one firefighter, suffered chemical burns and inhalation injuries and were transported to hospitals in Longview and Vancouver for treatment as responders faced 'extremely hazardous' conditions.
- Washington Governor Bob Ferguson mobilized the National Guard Homeland Response Force to assist with recovery and air monitoring, while officials confirmed no immediate threat to the public.
- Regulatory records show Nippon Dynawave faced $12,000 in penalties for air and water quality violations between 2023 and 2026, as investigations into the rupture's cause remain pending.
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