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Assistant Hydrogeologist Jobs (NOW HIRING)

Hydrogeologist

Denver, CO · On-site

$70K - $89K/yr

HDR is seeking a Hydrogeologist with 5 or more years of experience. The successful candidate is ... Draft technical memos and reports. * Assist with developing proposals and cost estimating.

Capability and desire to assist in the development of new business with clients and teaming ... A working knowledge of Florida's hydrogeology and environmental constraints would be preferred.

Capability and desire to assist in the development of new business with clients and teaming ... A working knowledge of Florida's hydrogeology and environmental constraints would be preferred.

In the role of Senior Hydrogeologist, we'll count on you to ... Lead in complex hydrogeologic investigations. * Assist in designing and conducting field studies ...

In the role of Senior Hydrogeologist, we'll count on you to ... Lead in complex hydrogeologic investigations. * Assist in designing and conducting field studies ...

Responsibilities may include working individually or as a part of a project team to assist with ... Technical knowledge: apply advanced hydrogeology and geoscience expertise to design, oversee, and ...

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Assistant Hydrogeologist information

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$27

$46

How much do assistant hydrogeologist jobs pay per hour?

As of Aug 14, 2026, the average hourly pay for assistant hydrogeologist in the United States is $27.22, according to ZipRecruiter salary data. Most workers in this role earn between $17.31 and $34.86 per hour, depending on experience, location, and employer.

What are the typical responsibilities and collaboration opportunities for an assistant hydrogeologist within a project team?

As an Assistant Hydrogeologist, you will often support senior hydrogeologists and environmental scientists by conducting fieldwork such as groundwater sampling, well installation, and data collection. Your daily tasks may also include analyzing hydrogeological data, preparing reports, and using modeling software under supervision. Collaboration is key in this role, as you’ll work closely with engineers, geologists, and regulatory agencies to ensure projects meet environmental and safety standards. This environment offers excellent learning opportunities and helps you build a strong foundation for advancing to more senior positions.

What is the difference between Assistant Hydrogeologist vs Hydrogeologist?

AspectAssistant HydrogeologistHydrogeologist
Required CredentialsBachelor's degree in geology, hydrogeology, or related field; some certificationsBachelor's or master's degree; professional licensure or certification often preferred
Work EnvironmentFieldwork, data collection, assisting senior staffFieldwork, data analysis, project management, client interaction
Employer & Industry UsageEntry-level roles in environmental consulting, government agencies, water resource companiesMid-level to senior roles in similar sectors, often with more project responsibility

The main difference between an Assistant Hydrogeologist and a Hydrogeologist lies in experience and responsibilities. An Assistant Hydrogeologist typically supports senior staff with data collection and fieldwork, while a Hydrogeologist takes on more independent analysis, project management, and client interaction. Both roles require similar educational backgrounds, but the Hydrogeologist usually has more experience and possibly licensure, enabling greater responsibility in projects.

What is an assistant hydrogeologist?

Assistant Hydrogeologists are entry-level professionals who support senior hydrogeologists in studying the distribution, movement, and quality of groundwater. They assist with fieldwork, data collection, analysis, and report preparation related to water resources and environmental projects. Their work is essential for understanding groundwater systems, managing water supplies, and addressing environmental concerns such as contamination or drought. Assistant Hydrogeologists often work for consulting firms, government agencies, or environmental organizations, and their role provides valuable hands-on experience in the field of hydrogeology.

What are the key skills and qualifications needed to thrive as an assistant hydrogeologist, and why are they important?

To thrive as an Assistant Hydrogeologist, you need a solid background in geology or environmental science, typically with a relevant bachelor's degree, and foundational knowledge of hydrogeological principles. Familiarity with groundwater modeling software (e.g., MODFLOW), GIS tools, and data collection instruments is often required. Strong analytical thinking, attention to detail, and effective communication are vital soft skills for fieldwork and reporting findings. These competencies ensure accurate data analysis, effective project support, and compliance with environmental regulations in water resource management.
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What are the most commonly searched types of Hydrogeologist jobs?

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What states have the most Assistant Hydrogeologist jobs?

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What job categories do people searching Assistant Hydrogeologist jobs look for?

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Infographic showing various Assistant Hydrogeologist job openings in the United States as of August 2026, with employment types broken down into 1% As Needed, 76% Full Time, 20% Part Time, 1% Temporary, and 2% Contract. Highlights an 98% Physical, 1% Hybrid, and 1% Remote job distribution, with an average salary of $56,617 per year, or $27.2 per hour.

Hydrogeologist

HDR

Denver, CO • On-site

$70K - $89K/yr

Full-time

Re-posted 18 days ago


HDR rating

9.2

Company rating: 9.2 out of 10

Based on 58 frontline employees who took The Breakroom Quiz

33rd of 447 rated engineering


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.


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About HDR

Sourced by ZipRecruiter

At HDR, we specialize in engineering, architecture, environmental and construction services. While we are most well-known for adding beauty and structure to communities through high-performance buildings and smart infrastructure, we provide much more than that. We create an unshakable foundation for progress because our multidisciplinary teams also include scientists, economists, builders, analysts and artists.

Industry

Specialized design services

Company size

5,001 - 10,000 Employees

Headquarters location

Omaha, NE, US

Year founded

1917