Fifteen employees of the Birds Eye Foods location in Darien, Wisc., were sent to the hospital on Sunday, July 29, due to an ammonia leak, according to the Walworth County Sheriff’s Office. Twelve were treated and released and three more were kept overnight, according to local reports. Seventy-five others were evaluated by emergency responders at the scene and released.
The leak was reported around 5:30 a.m. Local authorities said there was no danger to area residents, and no evacuation was called or roads closed. EPA and OSHA were notified. Ammonia levels inside the facility were deemed acceptable by 2:30 a.m. on July 30, and the building was cleared for Birds Eye staff to resume control.