Environmental and geotechnical services firm Terracon named eastern and western assistant materials service line directors for the United States. Tracy Grover will serve the Western U.S. Grover’s range will include 13 West Coast and Mountain states. Aaron Layne, PE, will serve the eastern U.S., including 25 states from the East Coast, Southeast and parts of the Midwest.

Grover joined Terracon in 2015 as Materials department manager in Phoenix. Most recently, he served as senior consultant and regional services manager for Materials in Terracon’s Western operating group. Grover has more than 28 years of experience, including lab manager, materials department manager, office manager, regional services manager and service line director roles with large engineering firms. He studied civil engineering at the University of Utah. Grover also serves as the current chair of the American Concrete Institute’s (ACI) 311 Committee, Inspection of Concrete.

Layne joined Terracon in 1998 as an engineering technician. Before his new appointment, he served as materials department manager and Raleigh office manager. Layne has more than 21 years of diverse experience in materials engineering, and is a registered professional engineer in three states. He earned a bachelor of science in aerospace engineering from North Carolina State University.

Terracon, an employee-owned engineering consulting firm, has more than 5,000 employees providing environmental, facilities, geotechnical and materials services. It is based in Olathe, Kansas, but operates in all 50 states from more than 150 offices. Terracon currently ranks 24th on Engineering News-Record’s list of Top 500 Design Firms. For more information, visit www.terracon.com.