On March 5, 2021, an employee was engaged in the task of adding backstops to the highest shelf of a storage racking system in the pre-blend department. The employee used an extension ladder to access the highest shelf. The employee attempted to step from the ladder onto the shelf when the bottom of the ladder slid out due to a slippery floor. The employee fell approximately 20 feet to the concrete floor and suffered fractured vertebrae. The employee was hospitalized.