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Former manager of Sioux Center cooperative sentenced for grain blending scheme

Feb 04, 2021 at 09:20 AM CST

SIOUX CITY (KTIV) - A former manager of a grain cooperative in Sioux Center, Iowa who directed employees to blend oats into soybeans has been sentenced to three months in federal prison. On Feb. 2, 60-year-old Calvin Diehl of Aberdeen South Dakota received the prison term after a June 9, 2020 guilty plea to one count of conspiracy to defraud the United States. In a plea agreement, Diehl admitted he was the Assistant General Manager at a federally licensed grain warehouse that is headquartered in Sioux Center.