Analyze rock and mud to detect the presence of oil.
Supervises and coordinates activities of workers engaged in constructing manholes, transformer vaults, and substation foundations, in installing street light poles, and in laying pipe and ductwork for telephone, electric, water and sewage systems, and gas and oil lines: Reads blueprints and interprets data, including angles required in bending pipe, mixture of concrete most suitable for soil conditions, locations for placement of pipe sections, and type and amount of insulating wrapping and adhesive compound required to protect pipe. Directs activities of workers engaged in inspecting pipe for deficiencies by use of x-ray equipment or by means of high-pressure air tests, of workers engaged in removing rust and applying protective coating to pipe, of workers engaged in laying pipe on land or underwater, of workers engaged in performing dredging, underwater blasting and backfilling activities, and of workers engaged in digging up and removing pipelines. Performs other duties as described under SUPERVISOR Master Title. May be designated according to area of specialization as Duct-Layer Supervisor; Fabrication Supervisor; Lower-In Supervisor; Pipe-And-Test Supervisor; Pipe-Laying Supervisor; River-Crossing Supervisor; Take-Up Supervisor.