April 22, 2013
Five miles north of downtown, a fertilizer plant sits on 29 acres in a mostly uninhabited area near railroad tracks. And just 492 feet away from the steel and gravel is Cesar Chavez Elementary School.
Theo Udeigwe, assistant professor of chemistry at the Department of Plant and Soil Science at Texas Tech University, said ammonium sulfate, used in a type of fertilizer, "contains ammonia, so there's chances of it being combustible. But not like ammonium nitrate. That one is explosive.''