FRANKFORT, Ky. -- The Sierra Club is suing poultry giant Tyson Foods for allegedly failing to clean up waste from four chicken farms in Kentucky.
The lawsuit, filed in U.S. District Court in Owensboro and announced Monday by the environmental group, includes charges that Tyson failed to report releases of ammonia.
Springdale, Ark.-based Tyson officials said they had not seen the suit and declined comment.
In the past, the company has said the farmer-operators it contracts bear liability for pollution. The federal Superfund law requires a permit if an operation releases more than 100 pounds of ammonia per day.
Tyson operations in three western Kentucky counties are at issue in the suit.