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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

Keith Tolson is a Senior Principal Environmental Scientist based in Florida with more than 15 years of experience focused on environmental sciences. He Specializes in the application of risk-based principles…
Denise Tripp is a Senior Consultant based in Massachusetts with more than 30 years of experience focused on environmental assessment and remediation and litigation support projects for the paper, petroleum,…
Paul Tschirky is a Senior Principal Coastal Engineer based in Louisiana with more than 20 years of experience in coastal resiliency, restoration, and water management. He has provided planning, design,…
Lisa Van Tassell is a Senior Principal Environmental Engineer based in California with more than 15 years of experience focused on soil and groundwater remediation systems; site investigation and characterization,…
Jesse Varsho is a Principal Engineer and Geologist based in Illinois with more than 15 years of experience in environmental consulting, landfill engineering, construction quality assurance, permitting, compliance, and project…
Willem Villet is a Senior Principal Engineer based California with more than 30 years of experience focused on providing strategic planning consulting, advanced geotechnical engineering solutions, and geohazard analyses on…
Robert Veenstra is a Principal Environmental Engineer based in Missouri with more than 30 years of experience focused on developing and managing complex soil, groundwater and sediment investigation and remediation…
Joe Volpe is a Principal Hydrogeologist based in Georgia with more than 30 years of diverse experience in all aspects of water management. Joe has been working in the food/beverage…
Njoroge Wainaina is a Senior Consultant based in North Carolina with more than 34 years of experience focused on geotechnical, materials, pavement engineering, shore protection systems and design, and construction…
James (Yu-Sheng) Wang is a Principal Environmental Engineer based in Maryland with more than 18 years of experience focused on developing and applying innovative assessment and remediation technologies. James has…
Gary Wealthall is a Senior Principal Hydrogeologist based in Toronto with more than 20 years of experience focused on contaminant hydrogeology research and practice. He advises regulatory authorities and clients…
Nandra Weeks is a Senior Principal Environmental Engineer based in Florida with more than 20 years of professional experience focused on the engineering and remediation issues associated with environmentally-impaired property…
Susan Welt is a Senior Engineer based in Massachusetts with 20 years of experience focused on the investigation and remediation of industrial sites, former manufactured gas plants (MGP), mining operations,…
Chuck Whisman is a Senior Principal Engineer based in Pennsylvania with more than 23 years of professional experience focused in the areas of soil and groundwater assessment/remediation, system optimization, compliance,…
Robby White is a Senior Principal Environmental Scientist based in South Carolina with more than 20 years of experience focused on site assessment and remediation, solid waste management, capital planning,…
Jimmy Whitmer is a Senior Principal Geologist and Hydrogeologist based in Georgia with more than 30 years of experience directing multidisciplinary projects focused on water supply development, site characterizations for…
Anju Wicke is a Senior Principal Geologist based in California with more than 25 years of experience in environmental consulting. She provides program management, financial management, and contracting services. Anju…
Jennifer Wilkie is a Principal Engineer based in Illinois with more than 20 years of experience in environmental research and consulting focused on providing multidisciplinary services and support to clients.…
Kim Williams is a Senior Consultant Water Resources Engineer based in California with more than 20 years of experience focused on civil and environmental engineering. Specializing in stormwater quality compliance…
Sam Williams is a Senior Principal Hydrogeologist based in California with more than 25 years of experience focused on the characterization and remediation of soil and groundwater contamination at industrial…
Charlie Wisdom is a Senior Consultant based in Washington with more than 25 years of experience focused on private practice and academia addressing the effects of human activities on water…
Matt Wissler is a Principal Hydrogeologist with more than 14 years of experience focused on the evaluation of water resources, hydrogeologic investigations relating to resource and waste permitting, and contaminated…
Veryl Wittig is a Senior Principal Hydrogeologist based in California with more than 20 years of experience focused on complex environmental site assessment, hazardous materials management, and regulatory compliance for…
Jim Wragg is a Senior Principal Hydrogeologist based in Delph with more than 20 years of experience focused on the detailed investigation, assessment and remediation of contaminated soil and groundwater,…
Peter Zeeb is a Senior Principal Hydrogeologist based in Massachusetts with more than 25 years of experience focused on investigation and remediation strategy at some of the most challenging sites…
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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