Four injured after grain dust explosion at Arizona dog food plant
Welding sparks caused blast, authorities say.
FLAGSTAFF, Ariz. — A crew from Nestle Purina is assessing damage from a grain-dust explosion that injured four contract workers at the company’s plant in Flagstaff, Arizona.
Flames from welding equipment sparked the explosion Sept. 14, blowing out metal doors at the front of the seven-story grain elevator.
Authorities say it was the first such incident at the dog food plant in more than four decades of operation.
Company spokesman Keith Schopp says a crew from the St. Louis headquarters was on site surveying the damage. Production remained shut down, but the warehouse is operating.
About 250 people work at the Flagstaff factory.
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