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Job Description

Drilling Assistant I

Select Location: South Dakota: Sioux Falls, SD

Our drilling crews collect soil and rock samples that provide critical site data and information to AET engineers. We have an opening for a Drilling Assistant in our Duluth office to assist with drilling operations in the surrounding area. In this role, you’ll operate vehicles and drilling equipment to obtain soil and rock samples, record test boring locations/elevations, classify soil and rock types. install monitoring wells, and seal boreholes while prioritizing safety and client relationships. Candidates should enjoy working outdoors in varied weather conditions and have a comfort level with equipment maintenance – training is provided, though a background in soil science, geology, earth science is helpful.

AET provides geotechnical, environmental, materials and forensics consulting and testing services to public and private sector clients in a broad spectrum of industries. We have built our reputation on experience, quality, and fulfilling client requirements in a cost effective and timely manner. Many of our principals, engineers, scientists and certified technicians have decades of practical experience in their areas of specialization. Our extraordinary accumulation of site data and construction history in the Upper Midwest has been a valuable asset for many professionals.


Reasonable accommodations or workable solutions may be made to enable individuals with disabilities to perform essential functions.

Driller Role Duties

   Set up equipment and operate the drill rig in a safe manner, for the purpose of obtaining soil and rock samples.

   Assist Crew Chief in clearance of underground utilities/improvements.

   Team with the Crew Chief in surveying test boring locations and elevations.

   Install monitoring wells and piezometers.

   Properly seal boreholes per regulatory requirements if needed; also properly backfill non-environmental boreholes.

   Clean/restore site to a reasonable level.

   Assist Crew Chief in sampling as needed to increase efficiency and productivity, and maintain safety.

Logger Role Duties

   Obtain soil or bedrock samples from test borings, using proper collection/handling methods (per the Geotechnical Field Manual).

   Prepare written field logs of borings, including judging and documenting soil classifications and apparent geologic origin.

   Assist Crew Chief in clearance of underground utilities/improvements.

   Team with the Crew Chief in surveying test boring locations and elevations.

   Assist Crew Chief in installing monitoring wells and piezometers.

   Assist Crew Chief in backfilling boreholes, and clean/restore site to a reasonable level.

   Assist Crew Chief in drilling procedures as needed to increase efficiency and productivity, and maintain safety.


Conduct field, laboratory and office activities in a manner consistent with federal, state, and local environmental, health, and safety regulations and AET’s Health and Safety Policy, and that promotes the safety and protection of employees, clients and the public•Maintain valid driver’s license and acceptable driving record. Some positions may require use of personal vehicle for company business. Maintain compliance with DOT driver regulations. Maintain appropriate physicals.

Maintain a good, professional relationship with the client/owner when they are present.

Participate in education and training. Review Geotechnical Field Manual and associated QA procedures, and have understanding of sampling/field log preparation requirements.

Maintain the quality level of work needed for the project at an efficient rate, but still maintaining a safe manner.

Maintain knowledge of regulatory requirements for sealing of environmental boreholes.

Accurately and completely fill out timesheets on a daily basis.

Duties usually outdoors and away from the main office/laboratory location. Occasional out-of-town travel.

Properly use and maintain company instruments and equipment.

Coordinate with other AET staff with the ultimate goal of increasing efficiency, productivity and communication.

Perform other job duties as needed to meet department needs.


HS diploma or GED

Capable of the physical labor required including work at hazardous waste sites, with personal protective equipment.

Ability to: Frequently lift 30-60 pounds from the floor to 2 feet; Occasionally lift 60-100 pounds from the floor to 2 feet; Frequently carry 30-60 pounds for 10-30 feet; Occasionally carry 60-100 pounds for 10-30 feet.

Ability to: Stand 80% of the day (often on uneven surfaces,) Move 20% of the day, with frequent bending and stooping


Associates degree or Bachelors degree in Geology, Earth Science, or related field

Mechanical ability (operator, repair, maintenance, welding, etc.)

Working knowledge of well codes.

Class A or B Driver’s License.

AET is proud to be an Equal Opportunity Employer; AA/EEO/Veterans/Disability friendly employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, religion, age, sexual orientation, gender identity, national origin or any other characteristic protected by applicable Federal, State, or local laws.