Staff Hydrogeologist

Tetra Tech; Superior (CO); Hybrid; USD 60,000 - 70,000; Full time

Benefits offered by this job

Comprehensive benefits

Merit‑based rewards

Flexible working arrangements

Learning & development opportunities

Job summary

Tetra Tech seeks an entry‑level Geologist/Hydrogeologist for the Superior or Longmont, CO offices to begin a career in environmental hydrogeology. You will support groundwater investigations, site characterization, drilling and monitoring wells, groundwater sampling, and data interpretation.

The role emphasizes strong analytical skills, database proficiency, and the ability to collaborate with engineers and scientists. Hybrid work is possible, with a focus on field and office collaboration.

Qualifications

• BS degree in Geology, Geological Sciences, Hydrogeology, or a closely related geoscience discipline with substantial geology coursework is required.
• Academic or professional training in groundwater hydrogeology is required, including coursework or experience in groundwater flow, aquifer properties, well hydraulics, groundwater chemistry or related topics.
• Zero to two years of relevant experience in environmental hydrogeology, groundwater investigation, site characterization, drilling/logging, groundwater monitoring, or groundwater modeling.
• Strong written and oral technical communication skills are required.

Responsibilities

• Conduct and support soil, groundwater, soil‑vapor, and other environmental field investigations and sampling programs.
• Assist with development of sampling plans and health and safety plans and provide field investigation and subcontractor oversight.
• Support drilling, monitoring‑well installation and development, aquifer testing, groundwater sampling, and other hydrogeologic field activities.
• Log soil and rock encountered during drilling and interpret lithologic logs, drilling observations, and other subsurface geologic and hydrogeologic information.
• Evaluate environmental and hydrogeologic data and perform statistical and other technical analyses.
• Support groundwater monitoring, hydrogeologic evaluations, groundwater modeling, water‑supply feasibility studies, and site characterization.
• Support remedial alternatives evaluations, remediation design, and implementation oversight.
• Prepare technical reports, memoranda, figures, conceptual site models, data visualizations, and other technical deliverables.
• Assist with proposals, subcontractor bids, cost estimates, and project budgets.
• Work with multidisciplinary teams of engineers, geologists, scientists, data managers, and other technical specialists.
• Other duties as assigned.

Skills

Oral & written communication

Geology knowledge

Groundwater hydrogeology

Databases

ArcGIS

Groundwater modeling

Education

BS in Geology / Hydrogeology

Tools

ArcGIS Pro

Job description

Tetra Tech is seeking an entry-level Geologist/Hydrogeologist for our Superior or Longmont, Colorado offices. The position is intended for candidates at the beginning of their professional geology/hydrogeology career, typically with zero to two years of directly relevant geoscience experience. Relevant experience should be primarily in geology, hydrogeology, environmental geoscience, or closely related groundwater-focused work. Primary work will involve groundwater investigations, hydrogeologic site characterization, drilling and monitoring-well programs, groundwater monitoring and sampling, hydrogeologic data interpretation, groundwater modeling, and related technical reporting.

The ideal candidate will have a strong academic foundation in geology and groundwater hydrogeology, an interest in developing a career in environmental hydrogeology, and strong computational and technical skills. Prior environmental consulting experience is preferred but is not required. Proficiency with databases, ArcGIS, and groundwater modeling tools, including finite-difference and/or finite-element modeling approaches, is preferred. Attention to detail, strong oral and written communication skills, and the ability to quickly learn new technical skills are required. The successful candidate should have a strong work ethic, a positive attitude, and the ability to work effectively both independently and as part of a team.

Why Tetra Tech:

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry‑leading experts in engineering and consulting are committed to driving positive change in communities around the world. For over 50 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting‑edge solutions in water, environment, energy, and international development. Our work has improved more than 625 million lives around the world.

Your Impact:

Join Tetra Tech to make a real difference. Our work leverages cutting‑edge technologies, advanced analytics, and the expertise of world‑class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving a lasting legacy.

Essential Job Functions:

• Conduct and support soil, groundwater, soil‑vapor, and other environmental field investigations and sampling programs.
• Assist with development of sampling plans and health and safety plans and provide field investigation and subcontractor oversight.
• Support drilling, monitoring‑well installation and development, aquifer testing, groundwater sampling, and other hydrogeologic field activities.
• Log soil and rock encountered during drilling and interpret lithologic logs, drilling observations, and other subsurface geologic and hydrogeologic information.
• Evaluate environmental and hydrogeologic data and perform statistical and other technical analyses.
• Support groundwater monitoring, hydrogeologic evaluations, groundwater modeling, water‑supply feasibility studies, and site characterization.
• Support remedial alternatives evaluations, remediation design, and implementation oversight.
• Prepare technical reports, memoranda, figures, conceptual site models, data visualizations, and other technical deliverables.
• Assist with proposals, subcontractor bids, cost estimates, and project budgets.
• Work with multidisciplinary teams of engineers, geologists, scientists, data managers, and other technical specialists.
• Other duties as assigned.

Required Qualifications:

• Bachelor of Science (BS) degree in Geology, Geological Sciences, Hydrogeology, or a closely related geoscience discipline with substantial geology coursework is required.
• Academic or professional training and demonstrated interest in groundwater hydrogeology is required, including coursework or experience in groundwater flow, aquifer properties, well hydraulics, groundwater chemistry, groundwater monitoring, or related topics.
• Zero to two years of relevant experience in environmental hydrogeology, groundwater investigation, site characterization, drilling/logging, groundwater monitoring, or groundwater modeling. Recent graduates with appropriate geology and hydrogeology training are encouraged to apply.
• Strong written and oral technical communication skills are required.
• OSHA 40‑hour HAZWOPER Training required or can be acquired first month of employment.
• 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.

Preferred Qualifications:

• 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 is desired.
• MSHA training preferred.
• Experience with ArcGIS Pro or AutoCAD use desired.
• Experience with SQL or Access database use desired.
• Familiarity with geochemistry and statistical evaluations of water chemistry and trend analysis is desired.

Physical Requirements:

Ability to lift, carry, push, and pull equipment weighing 25 -50lbs in variable weather and terrain.

• Ability to travel and perform field work/oversight as required (approx. 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. This arrangement is subject to review and may change at the company’s discretion.

Field work will include work to be performed outside, as a result will include working in various environmental factors (weather, altitude, terrain, noise, bugs, drilling sites, industrial facilities, etc.). This can include 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.

Additional Information:

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.

Target salary range: $60,000 to $70,000. Please note that Tetra Tech considers various factors in determining pay, including but not limited to: education, relevant and demonstrated work experience in the role, skills, geographic location, qualifications, certifications, and other competencies relevant to the needs of the business.

The perks of working at Tetra Tech include:

• Comprehensive and market‑competitive benefits.
• Tetra Tech offers the following optional benefits: Medical, Dental, Vision, Prescription, Accidental Death & Dismemberment, Long & Short‑Term Disability, Health & Dependent Care Flexible Spending. Financial Benefits: Group Term Life, Optional Group Term Life Insurance, Business Travel Accident Insurance, Health Savings Account, 401K, Employee Stock Purchase Plan, Time Off with Pay, Employee Assistance Program, Adoption Assistance, Leaves of Absence.
• Merit‑based financial rewards.
• Flexibility and company‑wide commitment to work/life balance.
• Collaborative team atmosphere that values the contributions of all employees.
• Learning and development opportunities for ongoing professional growth.

About Tetra Tech:

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high‑end consulting and engineering services for projects worldwide. With 30,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sexual orientation, gender identity, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.