Drive trucks or truck-mounted drills to and from work sites.
Assemble and position machines, casing pipes, and other equipment, using hand tools.
Drill or bore holes in rock for grouting, casing, and water.
Drive or guide truck-mounted equipment into position, level and stabilize rigs, and extend derricks.
Monitor drilling operations, checking gauges and listening to equipment to assess drilling conditions and to determine the need to adjust drilling or alter equipment.
Operate controls to stabilize machines and to position and align drills.
Operate machines to flush earth cuttings from holes.
Regulate air pressure, rotary speed, and downward pressure, according to the type of rock being drilled.
Retract drill bit to force discharge dirt from holes.
Select and attach drill bits and drill rods, adding more rods as hole depths increase, and changing drill bits as needed.
Select the appropriate drill for the job, using knowledge of rock or soil conditions.
Start, stop, and control drilling speed of machines and insertion of casings into holes.
Verify depths and record properly on work orders.
Verify GPM (gallons per minute) on work orders.
Receiving Supervisor/Customer approval every 100 feet after initial 300 feet have been drilled.
Withdraw drill rods from holes.
Document geological formations encountered during work.
Retrieve lost equipment from bore holes, using retrieval tools and equipment.
Disinfect new and old wells in preparation for use.