The guilty pleas were entered during hearings at the federal courthouse in Sioux City. Jack DeCoster, 79, lives in Turner, Maine. Peter DeCoster, 51, lives in Clarion in northern Iowa, near the rural area where Quality Egg and its affiliates once produced millions of eggs.
The salmonella outbreak prompted a recall of 550 million eggs by Quality Egg and another Iowa company that used its feed and chickens, and led to the collapse of the vast egg production empire that DeCoster built from modest beginnings in Maine. Federal investigators spent years scrutinizing its business practices in the aftermath, as the DeCosters gave up control of their egg production facilities in Iowa, Maine and Ohio and settled dozens of legal claims from those who were sickened.
Plea agreements filed Monday say the company sold eggs that were tainted with salmonella from January 2010 until August, when the recalls were issued. Federal prosecutors said they found no evidence that the DeCosters were aware they were selling tainted products, but that as corporate officers, they can be held legally responsible.
The company admitted that former Quality Egg manager Tony Wasmund and another employee bribed a now-deceased USDA inspector on at least two occasions. Those bribes, including a $300 cash payment, were meant to influence the inspector to release pallets of eggs that had been retained for failing to meet federal standards because too many were cracked, dirty or leaking.
The company also admitted that, with Wasmund's approval, it had a longstanding practice of putting false processing and expiration dates on labels to make eggs appear fresher than they were. That practice helped the company circumvent laws in California, Arizona and elsewhere that require eggs to be sold within 30 days of their processing dates.
Wasmund cooperated with prosecutors under a deal in which he pleaded guilty to a bribery conspiracy. He could get a reduced sentence in September for his cooperation.
DeCoster's egg empire expanded even as he racked up labor, food safety and immigration violations. Bennett, the judge, sentenced DeCoster to five years of probation in 2003 for knowingly hiring people who were in the U.S. illegally.
Associated Press reporter Ryan J. Foley contributed to this report from Iowa City.