On April 30, 2003, Employee #1 and a coworker filled an anhydrous ammonia nurse tank to be transported to farm fields. After filling the nurse tank, Employee #1 was hooking the tank to a pickup truck for transport when the tank ruptured along a weld seam on the bottom front side. Liquid ammonia was released through the approximate 40-in. split. The ammonia formed a cloud and a rapidly expanding, boiling-liquid blast enveloped Employee #1. The coworker assisted Employee #1 to and into a water tank. The Employee #1 died 1.5 weeks later from chemical burns.