Jobs at Ecology

Senior Hydrogeologist (Hydrogeologist 4)

The Department of Ecology is hiring a Senior Hydrogeologist (Hydrogeologist 4) within the Water Quality Program.

Location:

• Central Region Office in Union Gap, WA.
• Upon hire, you must live within a commutable distance from the duty station.

Assignment Pay:

• The salary listed includes 7.5% assignment pay due to the required licensure.

Schedule:

• This position is eligible for telework and flexible schedule options.
• For the first month, the position will be required to work full time in the office, but after successful completion of onboarding and training, the position may be eligible for up to a 90% telework schedule with 10% of the time spent in-office. 
• Schedules are dependent upon position needs and are subject to change.

Application Timeline: 

• Apply by January 4, 2026.
• This position will remain open until filled. The agency reserves the right to make a hire at any time after application review begins. Applications received after the above date may not be considered.

Duties

As a Senior Hydrogeologist with the Central Regional Office (CRO) Water Quality Industrial Unit, you will have the opportunity to apply your hydrogeologic background to meaningful work that supports Washington’s communities and environment. This role gives you the chance to work on emerging groundwater topics—such as reclaimed water use, land-application practices, and industrial wastewater treatment—while contributing to important permitting decisions that help protect water quality across the state.

In this position, you will draw on your knowledge of groundwater systems and industrial discharges to support a variety of groundwater evaluations and water quality projects. Your perspective will help shape practical approaches to managing wastewater, preserving natural resources, and responding to evolving environmental needs in a rapidly growing region.

You will collaborate closely with colleagues across the Water Quality Program, individuals at regulated facilities, and community members who care about clean and healthy waterways. You’ll have a central role in providing hydrogeologic input for groundwater assessments, permit development, and project reviews. The work you support plays a vital part in keeping Washington’s water resources safe, sustaining local communities, and encouraging responsible growth.

If you’re looking for a position where your scientific background can contribute to meaningful environmental outcomes, this role offers a chance to make a long-lasting difference while working with a supportive team and a mission-driven program.

7Posted 12/16/2025