 Smithfield was using biodigesters to convert dead pigs into renewable energy, but residents alleged that they regularly overflowed.Residents also feared that the waste stored in the lagoons would leak into the groundwater.In 2009 Armour-Eckrich introduced smaller crescent-style packaging for its smoked sausages, which reduced the plastic film and corrugated cardboard the company used by over 840,000 pounds per year.