Annika Wallendahl, P.E., L.G., M.B.A.
Annika Wallendahl is a Principal Engineer based in Washington with more than 20 years of experience focused on energy transition, environmental compliance, sustainability, and environmental engineering.
James Wang, Ph.D., P.E.
James (Yu-Sheng) Wang is a Principal Environmental Engineer based in Maryland with more than 23 years of experience focused on developing and applying innovative assessment and remediation technologies. James has…
Kevin M. Warner, P.E.
Kevin Warner is a Principal Engineer based in Florida with more than 35 years of experience designing and implementing soil and groundwater treatment systems at hundreds of sites throughout the…
Gary Wealthall, Ph.D.
Gary is the Managing Director of Geosyntec’s consulting business in the UK and Ireland. He is a Senior Principal with more than 25 years of experience in contaminant hydrogeology research…
Nandra Weeks, P.E.
Nandra Weeks is a Senior Principal Environmental Engineer based in Florida with more than 30 years of professional experience focused on the engineering and remediation issues associated with environmentally-impaired property…
Susan B. Welt, M.P.H., P.E.
Susan Welt is a Principal Engineer based in Massachusetts with more than 20 years of experience focused on the investigation and remediation of industrial sites, mining operations, and U.S. Department…
Chuck Whisman, P.E.
Chuck Whisman is a Senior Principal Engineer based in Pennsylvania with more than 27 years of professional experience helping his clients with their most challenging engineering, site development, and environmental…
Jimmy Whitmer, P.G., CHMM
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
Anju Wicke is a Senior Principal Scientist based in California with more than 25 years of experience in environmental consulting focused on program management, financial management, and contracting services for…
Jennifer Wilkie, Ph.D., P.E., BCEE
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.
Sam Williams, P.G., CHG
Sam Williams is a Senior Principal Hydrogeologist based in California with more than 35 years of experience focused on the characterization and remediation of soil and groundwater contamination at industrial…
Kim Williams, P.E., CPSWQ
Kim Williams is a Senior Consultant Water Resources Engineer based in California with more than 25 years of experience focused on civil and environmental engineering.
Mark R. Willobee, CPESC
Mark is a Principal based in Illinois with more than 20 years of experience focused on water and natural resources management.
Matthew Wissler, P.G.
Matthew Wissler is a Senior Principal Hydrogeologist with more than 19 years of experience focused on the evaluation and permitting of water resources, hydrogeologic investigations relating to resource and waste…
Veryl Wittig, P.G., CHG
Veryl Wittig is a Senior Principal Hydrogeologist based in California with more than 25 years of experience focused on complex environmental site assessment, landfill and waste management facilities, hazardous materials…
Jim Wragg, FGS
Jim Wragg is a Senior Principal Hydrogeologist based in the United Kingdom with more than 30 years of experience focused on the detailed investigation, assessment and remediation of contaminated soil…
Kenneth Yass, P.E., CHMM
Ken Yass is a Principal Environmental Engineer based in Wisconsin with more than 25 years of experience focused on environmental compliance services for a wide range of industrial clients.
Nicholas Yafrate, Ph.D., P.E.
Nick Yafrate is a Principal Engineer based in Massachusetts with more than 11 years of experience in geotechnical engineering design, geotechnical instrumentation, and solid-waste facility services.
Jessica Yeager, P.E., LSP
Jessica Yeager is a Principal Environmental Engineer based in Kansas with more than 11 years of experience focused on strategic, risk-based closures and complex remedial design for legacy and brownfield…
Jeremy Yeglin, P.E.
Jeremy Yeglin is a Principal Engineer based in Texas with more than 14 years of consulting experience focused on providing multi-disciplinary engineering and environmental solutions to his clients in the…
Peter Zeeb, Ph.D., P.G., LSP
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…
Michael Zylich, P.G., LSP
Michael Zylich is a Senior Consultant based in Wilmington, North Carolina with more than 27 years of experience focused on construction environmental site compliance and soil/groundwater management, natural resource permitting,…
