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Packaging Corporation Storage Tank Explosion
On July 29, 2008, three workers died and a fourth was injured when an explosion occurred inside an 80-foot-tall storage tank at the Packaging Corporation of America (PCA) corrugated cardboard mill in Tomahawk, Wisconsin. The workers were on a catwalk above the tank and performing hot work (welding) at the time of the explosion. The storage tank held a mixture of recycled paper pulp and water which the CSB found decomposed to form flammable hydrogen.
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3
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