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EL CAJON, Calif. (CNS) – Federal agents this week raided and shuttered a large illicit marijuana-processing operation in an industrial area near Gillespie Field, seizing hundreds of pounds of cannabis and barrels of potentially explosive chemicals, authorities reported Friday.

The illegal drug lab in the 1400 block of Fayette Street in El Cajon was being used to process hash oil, a cannabis concentrate, via processes involving the highly flammable solvents butane and hexane, according to the Drug Enforcement Administration.

During the raid, DEA personnel impounded nearly 400 pounds of unprocessed marijuana, 150 pounds of chemically contaminated cannabis plant waste, 139 pounds of hash oil, sophisticated laboratory equipment and chemicals, including 55-gallon drums of hexane, the federal agency reported.

The agents also arrested a man at the scene on suspicion of illegally manufacturing a controlled substance. His name was not released.

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