Hydrogeologist

HDR, Inc.; Denver (CO); On-site; USD 68,000 - 106,000; Full time

Job summary

HDR, Inc. seeks a Hydrogeologist with 5+ years of experience, preferably based in Colorado. The role supports site investigation, remediation, and environmental projects across North America.

The position involves fieldwork up to 50% travel, data collection, analysis, and reporting. A strong background in geologic and hydrogeologic methods and regulatory knowledge is essential for success.

Qualifications

• Bachelor's degree in Environmental Studies, Hydrology, Civil Engineering, Water Resources or closely related field.
• Strong technical writing skills are necessary.
• Self-motivated, able to work independently and with a project team to completion of task.

Responsibilities

• Lead complex hydrogeologic investigations with a focus on complex fractured rock settings.
• Assist in designing and conduct field studies and be responsible for data collection, compilation and analysis for geology/hydrology projects.
• Conduct geologic logging of borings and monitoring well drilling and digitize logs and diagrams.
• Complete multi-media sampling including coordination with laboratories and reporting.
• Draft technical memos and reports.
• Develop groundwater potentiometric surface and isoconcentration maps.
• Prepare environmental permit documents on behalf of clients for regulatory compliance.

Skills

Technical writing

GIS

Data analysis

Fieldwork

Education

Bachelor's degree in Environmental Studies, Hydrology, Civil Engineering, Water Resources or closely related field

Tools

ArcGIS

Total Station

Job description

At HDR, our employee-owners are fully engaged in creating a welcoming environment where each of us is valued and respected, a place where everyone is empowered to bring their authentic selves and novel ideas to work every day. As we foster a culture of inclusion throughout our company and within our communities, we constantly ask ourselves: What is our impact on the world?

We believe waste is more than management, it's also an opportunity to innovate. As part of our Waste sector, you'll help shape solid waste infrastructure and environmental stewardship. With a top-tier industry ranking, our team delivers comprehensive solutions that span waste planning, remediation, engineering and implementation. You'll collaborate closely with clients and communities to design sustainable, cost-effective systems that contribute to cleaner environments and healthier communities. This isn't just a job, it's a chance to drive meaningful changes in the waste industry and build a legacy of sustainability.

Watch Our Story:' https://www.hdrinc.com/our-story'

Each and every role throughout our organization makes a difference in our ability to change the world for the better. Read further to learn how you could help make great things possible not only in your community, but around the world.

HDR is seeking a Hydrogeologist with 5 or more years of experience. The successful candidate is preferred to be based in one of HDR's Colorado offices, though other locations will also be considered. This individual will support our growing site investigation and remediation and other environmental project workload across our clients' diverse markets.

The primary duties of this position involve applying geologic and hydrogeologic knowledge and experience to support a broad range of environmental projects at locations such as landfills, industrial facilities, power stations, abandoned and operating mines, and water supplies impacted by pollutants including emerging contaminants (e.g. PFAS). Specific duties include geologic and hydrogeologic data collection, modelling, interpretation, and reporting. This position requires a versatile professional that is eager to learn, adaptable across project types, and values the opportunity for professional development. The position will require travel/fieldwork (up to 50%) with most work conducted in Colorado but may require support for other projects throughout North America.

In the role of Hydrogeologist, we'll count on you to

• Lead complex hydrogeologic investigations with a focus on complex fractured rock settings.
• Assist in designing and conduct field studies and be responsible for data collection, compilation and analysis for a variety of geology and/or hydrology-related projects.
• Conduct geologic logging of borings and monitoring well drilling and digitize boring logs and well construction diagrams into formal deliverables.
• Complete multi-media sampling including coordination with laboratories, data analysis, and reporting.
• Conduct hydrologic and hydraulic testing and analysis.
• Develop groundwater potentiometric surface and isoconcentration maps.
• Assist with troubleshooting issues that may arise in the field. Communicate issues in a timely manner to team members and supervisor.
• Draft technical memos and reports.
• Assist with developing proposals and cost estimating.
• Understand and helps manage project scopes, schedules, and budgets.
• Prepare environmental permit documents on behalf of clients for regulatory agency compliance.
• Maintain environmental databases.
• Perform other related duties as necessary.
• Work both independently on small projects and as part of larger project teams to assist senior personnel.

Preferred Qualifications

• A minimum of five (5) years of professional experience as a hydrogeologist or closely aligned profession. Advanced degrees (Master's or Ph.D.) in one of the above fields will substitute for one year of the required experience.
• Demonstrated experience conducting contaminated site investigations involving sample collection and analysis of various media including soil, groundwater, surface water, and sediment.
• Experience preparing groundwater monitoring reports and evaluating laboratory analytical data.
• Experience with developing quality assurance project plans, sampling and analysis plans, and/or waste management plans. Experience developing these plans in accordance with CERCLA and RCRA is preferred.
• Experience conducting technical evaluations and data computation to evaluate support compliance and contaminant fate and transport evaluations.
• Demonstrated knowledge of conceptual site models and the ability to critically analyze these models to identify data gaps and inform field investigation scoping activities.
• Demonstrated experience overseeing drilling, well installation, and pump tests in consolidated and unconsolidated formations.
• Professional Geologist (PG) certification or geologist in training (GIT) status with near terms to pursue PG certification.
• Prior experience with Colorado and Federal environmental regulations (CERCLA, RCRA, CWA, CAA, etc).
• Experience working on Coal Combustion Residual (CCR) projects involving groundwater monitoring, statistical analysis evaluations, site characterization, and corrective measures development.
• Prior geological/hydrogeological experience in Colorado or surrounding Mountain states.
• Experience developing Geographic Information System (GIS) projects and coverages in Arcview/ArcGIS.
• Experience conducting site investigation using with high resolution site characterization techniques.
• Experience with environmental permitting.
• Familiarity using boring log digitization software such as gINT or OpenGround and other hydrogeological software including Surfer and Aqtesolv.
• Ability and willingness to perform physically demanding tasks in adverse environmental conditions (rugged terrain, remote locations, hot and cold temperatures).
• OSHA 40 Hour HAZWOPER Certification and MSHA training are a plus.

#LI-EV1

Required Qualifications

• Bachelor's degree in Environmental Studies, Hydrology, Civil Engineering, Water Resources or closely related field
• Knowledge of and familiarity with technical evaluations and conceptual modeling
• Demonstrated basic working skills with GIS, Microsoft Excel and Word
• Total Station experience (GPS and associated software)
• Strong technical writing skills are also necessary
• Self-motivated, able to work independently and with a project team to completion of task
• May require field work in remote areas
• An attitude and commitment to being an active participant of our employee-owned culture is a must

What We Believe
HDR is our company. Together, we build on each other's life experiences and perspectives to make great things possible every day. This shapes our collaborative culture, encourages organizational trust and connects us closer to the clients and communities we serve.

Our Commitment
As employee owners, we all have a role in creating an inclusive environment where each of us is welcomed, valued, respected and empowered to bring our authentic selves to work every day.

Our eight Employee Network Groups (Asian Pacific, Black, Hispanic/Latino(a), LGBTQ+, People with Disabilities, Veterans, Women, Young Professionals) help create a sense of belonging and foster a supportive environment where everyone is empowered to engage and contribute. Each group has an executive sponsor and is open to all employees.

We provide a comprehensive benefits package that promotes employee ownership, employee health, performance, and success, which includes medical, dental, vision, short and long-term disability, life insurance, an employee assistance program, paid time away, parental leave, paid holidays, a retirement savings plan with employer match, employee referral bonus and tuition reimbursement. The expected compensation range for this position depends upon skills, experience, education and geographical location. (Stated benefits are for full-time regular positions. Temporary and part-time roles eligible for limited benefits.) Colorado: $67,588.00 - $105,881

Primary Location:United States-Colorado-Denver

Other Locations:United States-Colorado-Durango, United States-Colorado-Colorado Springs, United States-Colorado-Fort Collins, United States-Colorado-Grand Junction, United States-Colorado-Englewood

Industry:Waste

Schedule:Full-time

Employee Status:Regular

BusinessClass:Site Investigation and Remediation

Job Posting:Mar 27, 2026