UNKNOWN

ADAPTED_NOW

Your Role Observe and document drilling operations including describing drill cuttings in basin-fill and hard rock settings, characterizing hydrogeologic conditions, interpreting borehole geophysical logs, and conducting airlift tests. Install, configure, and maintain groundwater and surface water monitoring instruments and telemetry systems, both on-site and remotely, and integrate data into data management system.

Montgomery & Associates

Staff Hydrogeologist

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You'll manage tasks and projects , lead technical work, mentor junior staff, and work directly with clients, regulators, and M&A project leaders — with a central focus on Sustainable Groundwater Management Act (SGMA) planning and implementation. This position, based in Sacramento or Oakland , supports groundwater resource planning and SGMA implementation statewide, with a strong emphasis on Northern California and the Central Valley.

YEAR

Project Hydrogeologist

This role will primarily perform office work necessary to complete environmental site assessments, geologic and hydrogeologic investigations, site remediation, field sampling, environmental permits, and other environmental projects. Conduct projects including aquifer testing and evaluation; drilling oversight and soil/rock logging; supply well construction observation; sampling of environmental media; soil boring and monitoring well installation observation; and well development, purging, and sampling.

C.T. Male Associates

Geologist/Hydrogeologist III

JobTarget

FEED

Ecology employees may be eligible for the following: Medical/Dental/Vision for employee & dependent(s), Public Employees Retirement System (PERS), Vacation, Sick, and other Leave , 11 Paid Holidays per year , Public Service Loan Forgiveness, Tuition Waiver, Long Term Disability & Life Insurance, Deferred Compensation Programs, Dependent Care Assistance Program (DCAP), Flexible Spending Arrangement (FSA), Employee Assistance Program, Commute Trip Reduction Incentive, Combined Fund Drive, SmartHealth *Click here for more information. You will work closely with Water Resources Program staff to implement a water-level monitoring network and ensure that all grant-funded groundwater data is accurately processed and recorded in Ecology's Environmental Information Management (EIM) database.

State of Washington

Staff Hydrogeologist (Hydrogeologist 2) (In-Training) (Internal Only)

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Ecology employees may be eligible for the following: Medical/Dental/Vision for employee & dependent(s), Public Employees Retirement System (PERS), Vacation, Sick, and other Leave, 11 Paid Holidays per year, Public Service Loan Forgiveness, Tuition Waiver, Long Term Disability & Life Insurance, Deferred Compensation Programs, Dependent Care Assistance Program (DCAP), Flexible Spending Arrangement (FSA), Employee Assistance Program, Commute Trip Reduction Incentives, Combined Fund Drive, SmartHealth *Click here for more information. This position serves as field lead for the Lower Yakima Valley Groundwater Management Area Land Use and Groundwater Study efforts, characterizing groundwater flow, overseeing installation of monitoring wells, conducting field sampling, analyzing the resulting data, determining effective land use management practices, report writing, and Environmental Information Management System (EIM) data management.

Staff Hydrogeologist (Hydrogeologist 3) (In-training)

The role will collaborate with INTERA's hydrogeologists, engineers, groundwater modelers, data scientists, GIS professionals, and field staff on projects involving groundwater supply, aquifer characterization, water-resource planning, production wells, groundwater management, and related hydrogeologic challenges across Texas and beyond. The successful candidate will bring strong hydrogeologic judgment, an active Texas Professional Geoscientist or Professional Engineer license, and sufficient project management experience to guide scope, track budget, maintain schedule, direct project staff, develop quality deliverables, and communicate comfortably with clients.

INTERA Incorp

Senior Hydrogeologist / Senior Water Resources Engineer

The ideal candidate will be an established seller doer with extensive technical expertise in water rights, groundwater resources, and regulatory permitting, along with strong industry relationships and a demonstrated ability to generate new business. This individual will play a key role in driving business development, expanding client relationships, identifying new market opportunities, and leading complex water rights and hydrogeologic projects.

Terraphase Engineering

Principal Hydrogeologist

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FULL_TIME

Plan, coordinate, and lead field activities for site characterization and remediation projects, including environmental media (i.e., soil, sediment, surface water, groundwater, soil vapor, etc.) sampling, logging soil/bedrock cores, indoor air and sub-slab vapor sampling, drilling oversight (boring advancement and well installation), and installation/operation/maintenance of remedial systems. Prepare technical reports, project documentation, work plans, and health and safety plans, including Remedial Investigation (RI) Work Plans and Reports, Interim Remedial Measure (IRM) Work Plans and Reports, and Phase I/II Environmental Site Assessment (ESA) Reports.

TRC Companies, Inc.

[AW]-iCims

Matrix's local Arizona offices have extensive expertise in groundwater flow and transport modeling; water resources; production well design, installation and testing; water system engineering; various water, pollutant, and land permitting; Environmental Site Assessments (ESAs); soil and groundwater characterization / remediation; petroleum leaking underground storage tank (LUST) site assessments; developing site assessment and remedial action plans; CSM development; design of drilling programs for installation of groundwater monitor wells and soil vapor extraction (SVE) wells; GIS and much more. Interface with clients as the Project Manager and Senior Hydrogeologist for projects, including but not limited to: Groundwater resources studies and hydrology studies to support Arizona Department of Water Resources (ADWR) permitting programs, such as the Assured and Adequate Water Supply (AWS) determinations, Well Spacing - Well Impact studies and Underground Storage Facility (USF) applications.

Sundance Consultants LLC

Senior Hydrogeologist/Groundwater Modeling Team Leader

The Senior Water Resources Hydrogeologist/Engineer position reports to the Practice Area Director and is responsible for business development, project management, and technical oversight of water resources projects with clients in Texas, Colorado, California, and other states where EKI operates from initial project planning through feasibility analyses, design, implementation, and completion. Projects may include aquifer characterization, water budgets and water accounting frameworks, groundwater-flow and constituent transport modeling, water supply planning, production well design, water transfer support, indirect and direct potable reuse planning, litigation support, and more.

Erler & Kalinowski Inc

Senior Water Resources Hydrogeologist/Engineer

The ideal candidate is intellectually curious, technically rigorous, and eager to expand their expertise into emerging environmental issues, including climate change impacts on water supply, evolving policy related to water quality and waste management, and contaminants of emerging concern. In this role you will work as part of a multidisciplinary team to provide high-level scientific support for projects centering on evaluation of groundwater movement, flooding, geomorphology, water resources and water quality, contaminant transport and fate, and evaluation of the impacts of climate change.

Exponent Inc.

Senior Hydrogeologist (Ph.D.)

Matrix's local Arizona offices have extensive expertise in groundwater flow and transport modeling; water resources; production well design, installation and testing; water system engineering; various water, pollutant, and land permitting; Environmental Site Assessments (ESAs); soil and groundwater characterization / remediation; petroleum leaking underground storage tank (LUST) site assessments; developing site assessment and remedial action plans; CSM development; design of drilling programs for installation of groundwater monitor wells and soil vapor extraction (SVE) wells; GIS and much more. Assist with technical aspects of projects supporting regulatory frameworks, such as the Arizona Department of Environmental Quality (ADEQ) permitting programs such as Aquifer Protection Permit (APP) and Arizona Pollutant Discharge Elimination System (AZPDES) permit applications.

Groundwater Modeler / Hydrogeologist

Experience: 10 or more years of work experience directly related to groundwater projects in Minnesota or the Upper Midwest; project management and leadership experience with complex projects. In this hybrid role, you will apply hydrogeology skills on projects related to water supply evaluations, remediation of contaminated groundwater, mine planning and development, and groundwater-surface water interactions.

Barr Engineering Co

Hydrogeologist - Senior Level (Hybrid)

What You'll Do: Supporting a broad spectrum of groundwater resource projects related to high-yield supply well installation and testing, mining dewatering evaluations, groundwater resource assessments, well rehabilitation, stormwater basin mounding analysis, construction dewatering evaluations, and much more. ECS is currently ranked #60 in Engineering News-Record’s Top 500 Design Firms (April 2026), #144 in Engineering News-Record’s Top 200 Environmental Firms (October 2026) and #38 in Zweig Group’s Hot Firm List (June 2026).

ECS Ltd

Hydrogeologist (Entry-level)

Ecology employees may be eligible for the following: Medical/Dental/Vision for employee & dependent(s), Public Employees Retirement System (PERS), Vacation, Sick, and other Leave, 11 Paid Holidays per year, Public Service Loan Forgiveness, Tuition Waiver, Long Term Disability & Life Insurance, Deferred Compensation Programs, Dependent Care Assistance Program (DCAP), Flexible Spending Arrangement (FSA), Employee Assistance Program, Commute Trip Reduction Incentives, Combined Fund Drive, SmartHealth *Click here for more information. Regulatory Interpretation and Compliance - Demonstrated ability providing advanced technical review of RCRA permitting projects, CERCLA decision documents, groundwater well installation requests, and groundwater monitoring systems, ensuring alignment with regulatory requirements and site-wide hydrogeologic strategy.

Hydrogeologist 4

Intermediate Hydrogeologist · Hydrogeologist · Hydrogeology · Groundwater · Groundwater Monitoring · Hydrogeological Investigations · Groundwater Sampling · Aquifer Testing · Pumping Tests · Slug Tests · Mine Water Management · Mine Dewatering · Mining · Environmental Hydrogeology · Hydrogeological Assessment · Conceptual Hydrogeological Models · Groundwater Data Analysis · Field Hydrogeology · Well Installation · Groundwater Modelling · GIS · Leapfrog · EIT · GIT · P.Geo. You will: Plan & Deliver Projects: Plan and coordinate hydrogeological investigations, groundwater monitoring programs, and assigned project scopes, managing schedules, budgets, resources, and technical requirements in collaboration with accounting staff, project managers and senior hydrogeological engineers.

Equilibrium

Intermediate Hydrogeologist

Workable

United States-Michigan-Ann Arbor'',''United States-Michigan-Ann Arbor'',''United States-Michigan-Lansing, United States-Michigan-Detroit'',''United States-Michigan-Lansing, United States-Michigan-Detroit'','''','''','''','''','''','''',''Waste'',''Waste'',''Full-time'',''Full-time'',''Regular'',''Regular'','''','''',''Waste Services'',''Waste Services'',''Aug 6, 2026'',''Aug 6, 2026'',''false'',''788977'',''788977'',''true'',''788977'',''false'',''Submission for the position: Senior Hydrogeologist - (Job Number: 194946)'',''false'',''788977'',''false'',''true''. 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.

HDR Inc

Senior Hydrogeologist

An Environmental Engineer/Hydrogeologist I supports environmental projects including Environmental Site Assessments (ESAs); implementation of soil and groundwater monitoring and remediation programs; evaluation of vapor intrusion; and preparation of California Environmental Quality Act (CEQA) technical studies while working under the guidance of senior engineers and hydrogeologists. Our employee-owners are unified by a singular commitment to supporting projects that address key societal issues, such as the transition to renewable energy, infrastructure hardening and repair, environmental protection, and community resilience.

HOUR

Dudek

Environmental Engineer / Hydrogeologist

Ability to travel/work in the field 5% of the time, with typical travel durations of 3-4 days (office work is typically 95% of the time for this position; fieldwork can include site visits, meetings with clients, and applicable regulatory agencies). As a Senior Hydrogeologist, you'll conduct comprehensive reviews to assess the impact of nuclear facilities on water resources as well as prepare detailed reports, and support licensing applications.

Enercon Services Inc

Whether it's reducing methane emissions at agricultural facilities and landfills, repurposing contaminated properties, producing alternative energy, or sequestering carbon, we've been focused on finding smart climate solutions and improving the natural environment since our inception over 55 years ago. Whether you’re interested in managing clients and performing business development or if you are just looking to provide technical expertise and help develop talent, this role can fit your preference.

Hydrogeologist Jobs in the United States

Staff Hydrogeologist Montgomery & Associates

Project Hydrogeologist Montgomery & Associates

Geologist/Hydrogeologist III C.T. Male Associates

Staff Hydrogeologist (Hydrogeologist 2) (In-Training) (Internal Only) State of Washington

Staff Hydrogeologist (Hydrogeologist 3) (In-training) State of Washington

Senior Hydrogeologist / Senior Water Resources Engineer INTERA Incorp

Principal Hydrogeologist Terraphase Engineering

Project Hydrogeologist TRC Companies, Inc.

Senior Hydrogeologist/Groundwater Modeling Team Leader Sundance Consultants LLC

Senior Water Resources Hydrogeologist/Engineer Erler & Kalinowski Inc

Senior Hydrogeologist (Ph.D.) Exponent Inc.

Groundwater Modeler / Hydrogeologist Sundance Consultants LLC

Hydrogeologist - Senior Level (Hybrid) Barr Engineering Co

Hydrogeologist (Entry-level) ECS Ltd

Hydrogeologist 4 State of Washington

Intermediate Hydrogeologist Equilibrium

Senior Hydrogeologist HDR Inc

Environmental Engineer / Hydrogeologist Dudek

Senior Hydrogeologist Enercon Services Inc

Sr. Hydrogeologist SCS Engineers

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