Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in constructing, maintaining, and repairing gas mains and in servicing pipes from mains to customer’s premises: Marks work order diagram to indicate location of installations. Measures distances with tape and marks pavement or earth to indicate location of pipes requiring repairs, referring to work order diagram or map of mains and services. Inspects work in progress and directs workers to test pipes for leaks. May direct workers engaged in installation of meters and regulators to establish initial service for customer. May direct workers engaged in installing bonding, insulation, and counter-current generators to protect pipes against electrolytic corrosion. Performs other duties as described under SUPERVISOR Master Title. May be designated according to activity as Leak-Gang Supervisor; Service-Crew Supervisor.