Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in harvesting, transporting, washing, and stockpiling raw salt from crystallization pond beds: Plans shift activities and directs workers to pond beds designated for harvesting. Directs workers in laying of gondola tracks on salt bed. Coordinates harvesting with transporting, washing, and stockpiling activities to ensure continuity in production. Requests field repairs and maintenance of equipment. Directs relocation of conveyor to obtain stockpiles of specified size. Enforces safety regulations. Maintains records of production, pond status, and reasons for production delays.