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Geosyntec has built a record of successful client service by attracting some of the most creative scientists and engineers from the graduate programs of leading universities around the world.

We retain staff by providing challenging projects and a management and professional development infrastructure to support innovation on behalf of clients. We also provide staff with ownership opportunities and other financial incentives that create continuous personal links between client service and corporate well-being.

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Alphabetical List of Senior Practitioners

Cory Reiter is a Senior Principal Engineer based in Missouri with more than 18 years of experience focused on managing federal civil and environmental projects in the areas of flood…
David Reynolds is a Senior Principal Environmental Engineer based in Ontario focused on the development and implementation of groundwater remediation technologies and management strategies for complex sites with challenging hydrogeological…
Elizabeth Rhine is a Principal Environmental Scientist based in South Carolina with more than 25 years of professional experience focused on the characterization and remediation of impacted sites in the…
Kaitlyn Rhonehouse is a Senior Engineer based in North Carolina with more than 12 years of experience focused on the assessment and remediation of contaminated properties, property transaction environmental due…
David Richardson is a Senior Engineer based in Minnesota with more than 27 years of consulting experience focused on managing and executing environmental and engineering projects for private and public…
David Riotte is a Principal Senior Environmental Engineer based in Florida with more than 15 years of experience focused on site assessment and remediation, Brownfields redevelopment, construction management, and the…
Glenn Rix is a Senior Principal Geotechnical Engineer based in Georgia with more than 25 years of experience focused on the areas of geotechnical earthquake engineering and engineering seismology. His…
Chris Robb is a Principal Engineer based in Wisconsin with more than 20 years of experience in environmental consulting, remediation design and construction, quality control, and project management of solid…
Marc Rogoff is a Senior Consultant based in Florida with more than 38 years of professional experience focused on solid waste management waste collection studies, facility feasibility assessments, facility site…
Jamey Rosen is a Senior Principal Geoscientist based in Ontario with more than 20 years of experience focused on information management system design and development and geographic information systems (GIS).…
Gregory Roush is a Senior Principal Geologist based in Georgia with more than 30 years of experience focused on directing multidisciplinary projects involving site assessments and corrective actions at industrial…
J. Scott Rowlands is a Principal Hydrogeologist based in California with more than 25 years of experience focused on environmental and geotechnical consulting. With a practice focus on due diligence,…
Paul J. Sabatini, Ph.D., P.E., D.GE. is a Senior Principal with Geosyntec Consultants in their Oak Brook, Illinois office. He has been a practicing engineer for 22 years and has…
Rodolfo Sancio is a Senior Principal Geotechnical Engineer based in Houston, Texas with more than 18 years of experience focused on geohazard evaluations, geotechnical site investigations, site development and ground…
Darrell Sandlin is a Senior Energy Engineer based in Georgia with more than 30 years of experience focused on energy management and the enhancement of energy efficiency for clients in…
Thierry Sanglerat is a Senior Principal Civil Engineer based in California with more than 30 years of consulting experience focused on groundwater and soil remediation, brownfield site redevelopment, waste management,…
Christopher Saranko is a Principal Senior Board-Certified Toxicologist based in Georgia with more than 15 years of experience focused on evaluating potential risks associated with exposures to chemicals in the…
Bruce Sass is a Senior Consultant, Environmental Scientist, and Geochemist based in Ohio with more than 20 years of experience focused on the development and implementation of chemical process improvements…
Daniel Schauer is a Senior Principal Geologist based in Florida with over 24 years of geological, hydrogeological, and geotechnical engineering consulting experience focused on multidisciplinary engineering contracts for federal, municipal,…
Melissa Schmitt is a Principal Environmental Engineer based in Washington State with more than 10 years of professional experience focused on contaminated site assessment, remediation, and regulatory compliance. She specializes…
Mark Schultheis is a Senior Principal Environmental Engineer based in California who leads a diverse practice specializing in multi-party Brownfields redevelopment and Superfund project management. At California's Thomas Ranch Site,…
John Seymour is a Senior Principal Civil Engineer based in Illinois with over 30 years of experience focused on site remediation, deep foundation engineering, and construction management. His clients include…
Scott Sheridan is a Senior Principal Civil and Geotechnical Engineer based in Virginia with more than 15 years of experience focused on providing professional engineering, construction management, and consulting services…
Eric Smalstig is a Senior Principal Engineer based in California with more than 25 years of environmental consulting experience focusing on industrial facilities (production and waste management) assessment and remediation,…
Margaret "Poppy" Staub is a Senior Principal Geologist and Environmental Engineer based in Colorado with more than 20 years of experience focused on environmental compliance, Superfund site management, pollution prevention…
Brandon Steets is a Senior Principal Water Resources Engineer based in California with more than 16 years of experience focused on helping clients develop cost-effective solutions to their complex regulatory…
Eric Strecker is a Senior Principal Water Resources Engineer based in Oregon with more than 30 years of experience focused on the design, monitoring, and evaluation of stormwater best management…
Eric Suchomel is a Principal Environmental Engineer based in California with more than 10 years of professional experience focused on remedial program management, site investigation and characterization, feasibility study preparation,…
Jim Stout is a Senior Principal Environmental Scientist based in Texas with more than 31 years of experience focused on the effective management of environmental remediation projects for private and…
Scott Struck is a Principal based in Colorado with more than 15 years of experience focused on planning, design, and implementation of stormwater infrastructure and watershed management to meet drainage…
Ken Susilo is a Senior Principal Water Resources Engineer based in California with more than 20 years of experience focused on urban stormwater management. Ken specializes in the development of…
Gordon Thrupp is a Principal Hydrogeologist based in California with more than 25 years of experience focused on evaluating geological and hydrogeological conditions. He has specialized in quantitative analysis of…
Eric Tollefsrud is a Principal Hydrogeologist based in Minneapolis with more than 25 years of environmental consulting experience focused on the characterization and remediation of soil, soil vapor, and groundwater…
Geosyntec Consultants
Geosyntec is a specialized consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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