Our Team

Gary M. Birk, P.E. (NC, VA, & FL)

Managing Partner

Gary is a founder and Managing Partner based in North Carolina with more than thirty-five years of experince in soil and groundwater remediation.

David F. Alden, P.E. (NC)

Manager, Technical Services

David is focused on the remediation of complex soil and groundwater sites impacted by non-aqueous phase liquids.

Sherri Scott

Manager, U.S. Business Development

Sherri is Manager of Business Development for the U.S. focused on customer care and business development.

Guilherme Figueiredo, MSc.

Project Manager/Consultant (US and Latin America)

Guilherme is a Project Manager / Consultant based in São Paulo, SP, Brazil with eight years of experince in contaminated site management..

In Depth ...

Tersus has built a record of successful client service by attracting creative scientists, engineers and customer care professionals. We have the necessary experience and expertise to deliver innovative applications of proven and emerging scientific and engineering technologies. Our associates and partners have worked on hundreds of in situ remediation projects around the world on a variety of contaminants and subsurface conditions. All our engineers hold professional registrations, and several have over three decades experience in soil and groundwater remediation.

Our technical associates actively participate and donate time to the Interstate Technology and Regulatory Council (ITRC), a public-private coalition working to reduce barriers to the use of innovative environmental technologies that reduce compliance costs and maximize cleanup efficacy.

Clients choose Tersus based on our record of providing sound advice, recommendations, and solutions of exceptional value. Why not leverage our experience and lessons learned on your next remediation project?.