David Postlewaite

David Postlewaite is an experienced environmental scientist and project manager currently serving as Assistant Vice President at WSP since October 2023. Prior to this role, David held the position of Lead Environmental Scientist and Project Manager at WSP USA from February 2019. David's career includes significant experience at Tetra Tech, where responsibilities included project management and environmental science from June 2007 to February 2019. David's expertise encompasses the design, implementation, and oversight of soil and groundwater site investigations and remediation projects in compliance with RCRA and CERCLA regulations, along with the creation of interpretive data tables and reports. David holds a Bachelor of Science degree in Environmental and Natural Resources from Clemson University, obtained in 2006.