A professional who supervises and coordinates activities of workers engaged in crushing, sizing, cleaning, treating, or loading coal, stone, or other minerals at tipple or preparation plant. Respnsibilities include:

• Receives daily reports of quantity and grade of materials to be loaded into railroad cars or trucks.
• Transmits loading orders to equipment operators and loading crew.
• Observes activities of workers to ensure that impurities and materials of unspecified size are extracted.
• Directs operation of crushers, pumps, and furnaces, and assists workers with faulty equipment.
• Inspects processing and loading equipment and schedules necessary maintenance.
• Computes daily production from weight of loaded cars or trucks.
• Performs other duties as described under supervisor master title.