← Occupation guides

47-5023.00 · Task explorer

Earth Drillers, Except Oil and Gas: reported tasks and exploration worksheet

Operate a variety of drills such as rotary, churn, and pneumatic to tap subsurface water and salt deposits, to remove core samples during mineral exploration or soil testing, and to facilitate the use of explosives in mining or construction. Includes horizontal and earth boring machine operators.

Use the skill profile to plan your next practice →

Read the task inventory

This source lists 29 tasks, including 14 marked Core and 14 marked Supplemental. Labels and dates are retained below. Employers can combine or divide these responsibilities differently; explore the task itself before assuming it belongs in every version of the role.

Task source dates: 07/2017, 11/2020.

29 tasks shown

Core · Task 13673 · 07/2017 · Incumbent

Operate controls to stabilize machines and to position and align drills.

Core · Task 13671 · 07/2017 · Incumbent

Start, stop, and control drilling speed of machines and insertion of casings into holes.

Core · Task 13668 · 07/2017 · Incumbent

Regulate air pressure, rotary speed, and downward pressure, according to the type of rock or concrete being drilled.

Core · Task 13674 · 07/2017 · Incumbent

Select and attach drill bits and drill rods, adding more rods as hole depths increase, and changing drill bits as needed.

Core · Task 13677 · 07/2017 · Incumbent

Drive or guide truck-mounted equipment into position, level and stabilize rigs, and extend telescoping derricks.

Core · Task 13676 · 07/2017 · Incumbent

Operate machines to flush earth cuttings or to blow dust from holes.

Core · Task 13669 · 07/2017 · Incumbent

Verify depths and alignments of boring positions.

Core · Task 13678 · 07/2017 · Incumbent

Perform routine maintenance and upgrade work on machines and equipment, such as replacing parts, building up drill bits, and lubricating machinery.

Core · Task 13672 · 07/2017 · Incumbent

Select the appropriate drill for the job, using knowledge of rock or soil conditions.

Core · Task 13686 · 07/2017 · Incumbent

Document geological formations encountered during work.

Core · Task 13679 · 07/2017 · Incumbent

Drive trucks, tractors, or truck-mounted drills to and from work sites.

Core · Task 13682 · 07/2017 · Incumbent

Assemble and position machines, augers, casing pipes, and other equipment, using hand and power tools.

Core · Task 13680 · 07/2017 · Incumbent

Record drilling progress and geological data.

Core · Task 13681 · 07/2017 · Incumbent

Retrieve lost equipment from bore holes, using retrieval tools and equipment.

Supplemental · Task 13696 · 07/2017 · Incumbent

Fabricate well casings.

Supplemental · Task 13683 · 07/2017 · Incumbent

Pour water into wells, or pump water or slush into wells to cool drill bits and to remove drillings.

Supplemental · Task 21016 · 07/2017 · Incumbent

Create and lay out designs for drill and blast patterns.

Supplemental · Task 13689 · 07/2017 · Incumbent

Place and install screens, casings, pumps, and other well fixtures to develop wells.

Supplemental · Task 13684 · 07/2017 · Incumbent

Operate water-well drilling rigs and other equipment to drill, bore, and dig for water wells or for environmental assessment purposes.

Supplemental · Task 13692 · 07/2017 · Incumbent

Review client requirements and proposed locations for drilling operations to determine feasibility, and to determine cost estimates.

Supplemental · Task 13675 · 07/2017 · Incumbent

Drill or bore holes in rock for blasting, grouting, anchoring, or building foundations.

Supplemental · Task 13685 · 07/2017 · Incumbent

Perform pumping tests to assess well performance.

Supplemental · Task 13691 · 07/2017 · Incumbent

Disinfect, reconstruct, and redevelop contaminated wells and water pumping systems, and clean and disinfect new wells in preparation for use.

Supplemental · Task 13690 · 07/2017 · Incumbent

Design well pumping systems.

Supplemental · Task 13694 · 07/2017 · Incumbent

Signal crane operators to move equipment.

Supplemental · Task 13687 · 07/2017 · Incumbent

Withdraw drill rods from holes, and extract core samples.

Supplemental · Task 13695 · 07/2017 · Incumbent

Inspect core samples to determine nature of strata, or take samples to laboratories for analysis.

Supplemental · Task 13688 · 07/2017 · Incumbent

Retract augers to force discharge dirt from holes.

Unspecified · Task 23489 · 11/2020 · Analyst

Monitor drilling operations, by checking gauges and listening to equipment to assess drilling conditions and to determine the need to adjust drilling or alter equipment.

Make the shortlist useful

  1. Choose one to three activities that tell you something different about the work. Avoid selecting several ways of describing the same interest.
  2. For each, write an example you can discuss or a question that would change your understanding of the role.
  3. Keep source task IDs with your notes so you can return to the same description. Do not include private employer or customer information.

The exported worksheet distinguishes the reported task from your own notes. It supports exploration, not a hiring decision or a validated assessment.

Keep your worksheet

Download before leaving this page. Unsaved writing remains only in the page and is cleared on refresh. Notes and learning actions are not sent to a server. This guide describes an occupation and supports study planning; it does not provide clinical, legal or equipment-operating procedures.

Source and practice material

Occupational context uses the O*NET® 31.0 Database from the U.S. Department of Labor, Employment and Training Administration, under CC BY 4.0. View the occupation.

Skill Workbench selected and adapted the occupational information and added its own fictional cases, calculations, guidance and worksheets. USDOL/ETA has not approved, endorsed or tested these additions. O*NET® is a trademark of USDOL/ETA.