Silica Dust Produced by Vulcan's Reliance Facility
Although the Azusa Rock Quarry is located in the city of Azusa, California, a conveyor carries crushed rock to the nearby Reliance Rock processing facility in Irwindale. The conveyor dumps the rock into the air, producing dust clouds that pollute the air of the nearby cities of Azusa, Duarte, and Irwindale. The photos below were taken Saturday, October 15, 2005 at 7:02 a.m.
Photo looking south from Van Tassel Ridge showing dust cloud
rising from Vulcan's Reliance facility in Irwindale
Close-up of Reliance Pit
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