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Field Geophysicist

Terracon Consultants, Inc.
Cotati, CA Full Time
POSTED ON 1/2/2026 CLOSED ON 2/26/2026

What are the responsibilities and job description for the Field Geophysicist position at Terracon Consultants, Inc.?


Job Description
General Responsibilities:
Perform a comprehensive range of geophysical technologies in support of geologic, groundwater, environmental, engineering, and materials testing investigations. Perform non-invasive geophysical surveys from the ground surface as well as geophysical logging in boreholes to provide images or models of subsurface conditions. Define survey objectives, design survey approaches, analyze the resulting geophysical data, and provide interpretation of results. Results are incorporated into the planning, design and construction of vital infrastructure such as roads, tunnels, airports, landfills, water supplies, and other facilities; the assessment of environmental conditions; and the evaluation of earth resources. Geophysics supports all of Terracon's service lines. This position can be based in our Sonoma County, Sacramento, Lodi, or East Bay office.

Essential Roles and Responsibilities:
  • Follow safety rules, guidelines and standards for all projects. Participate in pre-task planning. Report any safety issues or concerns to management.
  • Understand and practice quality acumen.
  • Support consistent quality standards on proposal and project delivery.
  • Developing level Geophysicist responsible for conducting geophysical surveys; assignments are designed to develop knowledge and abilities.
  • Performs site visits, field observations and field data collection or assignments
  • Calibrate and maintain instruments; manage batteries, firmware, and spares equipment.
  • Assists in geophysical data collection and tests to evaluate, plan and permit projects.
  • Outlines required investigative program(s) by selecting the proper alternative techniques to conduct site studies in field of expertise.
  • May have limited client contact pertaining to specific projects/tasks.


Requirements:
  • Bachelor's degree in Geology or Geophysics.
  • Ability to lift up to 50 lbs.
  • Capable of walking long distance during fieldwork.
  • Willingness to work occasional overtime and weekends
  • Valid driver's license with acceptable violation history.
Preferred Certification:
  • Certification in field of expertise preferred based on state specific requirements.


The expected salary range for this position is listed below. The base range may be adjusted based on the specific location of the applicant. Final agreed upon compensation is based upon individual qualifications and experience.
$29.25 - $41.00 per hour
About Terracon
Terracon is a 100 percent employee-owned multidiscipline consulting firm comprised of more than 7,000 curious minds focused on solving engineering and technical challenges from more than 180 locations nationwide. Since 1965, Terracon has evolved into a successful multi-discipline firm specializing in environmental, facilities, geotechnical, and materials services. Terracon's growth is due to our talented employee-owners exceeding expectations in client service and growing their careers with new and exciting opportunities in the marketplace.

Terracon's vision of "Together, we are best at people" is demonstrated through our excellent compensation and benefits package. Based on eligibility, role and job status, we offer many programs including medical, dental, vision, life insurance, 401(k) plan, paid time off and holidays, education reimbursement, and various bonus programs.
EEO Statement
Terracon is an EEO employer. We encourage qualified minority, female, veteran and disabled candidates to apply and be considered for open positions. We do not discriminate against any applicant for employment, or any employee because of race, color, religion, national origin, age, sex, sexual orientation, gender identity, gender, disability, age, or military status.

 

Salary.com Estimation for Field Geophysicist in Cotati, CA
$103,539 to $134,011
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