The Sigma Group is pleased to congratulate JT Holcombe, P.E. on his latest career accomplishment, receiving his Professional Engineering certification. JT is a Project Engineer, who has been part of the Sigma team for four years. JT provides geological and environmental engineering services for a variety of commercial, industrial, and municipal clients. JT also provides surveying services as a FAA licensed remote pilot through Sigma’s UAS program. His experience includes managing environmental site assessments, construction oversight, field investigations, interpreting soil and groundwater data, and developing remedial and closure strategies for sites.