• Groundwater

    GSI's hydrogeologists are experts at finding groundwater, determining the extent and capacity of aquifers, and helping our clients in Oregon, Washington, and California develop this valuable resource. GSI specializes in aquifer storage and recovery (ASR), an innovative technology that uses the natural storage capacity of an aquifer to store treated water underground.

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  • Environmental

    GSI's technical expertise, experience, and excellent relationships with regulatory agencies help our clients to effectively address their environmental challenges. GSI has a wide variety of environmental project management and permitting experience, including working on several Superfund sites involving contaminated soil and groundwater.

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  • Water Rights

    GSI's experts understand the complexities of water rights and have experience working with multiple state agencies, attorneys, and other organizations involved in water rights issues. We help our clients develop water rights management strategies to address their water needs.

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Latest News

GSI’s Heidi Blischke at SETAC North America

Heidi Blischke was accepted to present at the Society of Environmental Toxicologists and Chemistry (SETAC) North America Annual Meeting this ...

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Greetings from Palm Springs

We recently returned from the Battelle Chlorinated Conference in Palm Springs, where GSI’s Randy Pratt and Andrew Davidson presented a poster on an ...

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Join our team: Senior-Level Hydrogeologist (California)

Our California team is growing! We’re looking for an experienced senior-level hydrogeologist and project manager to help manage a growing base ...

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GSI Welcomes Paul Sorensen

We’re pleased to welcome Paul Sorensen to our California team. He joins us with 30 years of experience in groundwater ...

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