Today, the OC Sheriff’s Hazardous Devices Section successfully detonated explosive materials collected during the Fourth of July holiday. The operation at the Frank R. Bowerman landfill included the controlled detonation of 20 pounds of improvised explosives and the destruction of approximately 20 pounds of black powder, a chemical explosive. Improvised explosives are susceptible to heat, shock and friction and cannot safely be stored, requiring an emergency controlled detonation. Thank you to o

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