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.

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…
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