Geologist​/Hydrogeologist

The Opportunity: Tetra Tech is currently seeking a Geologist within our Superior or Longmont, CO offices. The Geologist will assist with implementing environmental projects, that could include groundwater modeling and field activities.

Any candidates interested in this opportunity should apply by July 5, 2026 deadline.

• Assist with writing proposals, obtain bids from vendors and subcontractors, draft cost estimates and project budgets.
• Conduct field sampling programs and field procedures.
• Perform soil, groundwater, soil vapor, and other environmental investigations, support groundwater monitoring, hydrogeologic evaluations, and groundwater modeling efforts.
• Evaluate site characterization data; assist with water feasibility studies, remedial alternatives evaluations, remediation design, and implementation.
• Interface with subcontractors and internal technical resources.
• Develop sampling plans, health and safety plans, supervise and oversee field investigations.
• Prepare technical reports, memos, response to comments tables.
• Prepare and review figures, conceptual site models, data visualizations, and technical design schematics for remediation and environmental investigation projects.
• Review and evaluate environmental, hydrogeologic and geotechnical data. Perform statistical analyses.
• Support feasibility studies, remedial alternatives evaluations, remediation design, and implementation oversight.
• Work with a multi-disciplinary team of engineers, geologists, scientists, risk assessors, data managers, and other technical specialists.
• Other duties as assigned.

• Bachelor of Science (BS) degree in Geology or Hydrogeology required.
• One to 4 years of professional environmental consulting experience is required.
• Previous field experience required, including supervision of soil and groundwater investigations, sampling activities, and subcontractor oversight.
• Must be a skilled technical writer.
• OSHA 40-hour HAZWOPER Training required or can be acquired first month of employment.
• Ability to travel and perform field work/oversight (up to approximately 20% of travel required).
• A pre‑employment drug screening in compliance with state regulations is required.
• Must possess a valid driver's license with a clean driving record without restrictions.

• Master of Science (MS) degree preferred.
• Experience with both sedimentary and hard rock drilling and well installation desired.
• Previous experience developing and calibrating groundwater models desired.
• MSHA training preferred.
• Experience with ArcGIS Pro or Auto CAD desired.
• Experience with SQL or Access database desired.
• Familiarity with geochemistry and statistical evaluations of water chemistry and trend analysis desired.

• Ability to lift, carry, push, and pull equipment weighing 25–50 lbs in variable weather and terrain.
• Ability to travel and perform field work/oversight as required (approximately 20% required).
• Ability to walk across variable terrain, including uneven ground, in all weather conditions (extreme hot/cold temperatures, loud noises, bugs, etc.).
• Have full range of motion to support field activities (ability to stand, bend, kneel, and reach during field activities).

• Based out of the Superior or Longmont, CO offices with potential of a hybrid work arrangement, but the candidate must reside within 25 miles of the local offices.
• Field work will include working in various environmental factors such as weather, altitude, terrain, noise, bugs, drilling sites, industrial facilities, etc., and may involve operating field instruments and tools, remaining stationary for long periods of time, walking, bending, lifting, and sitting for site assessments, sampling, oversight, and other field activities.
• Office work will include extended periods sitting or standing at a desk and using a computer and other office equipment.

• Full-time, Monday through Friday work schedule (40 hours). Occasionally extended hours may be required based on project and/or client needs.
• Work will be performed in a field and office setting.

$60,000 to…