About People

Trevor Coons

Trevor Coons

Geotechnical Staff

Trevor has more than 10 years’ experience in providing field observation services for construction projects. His assignments include materials testing, density testing, sampling, documentation and construction observation duties. In the field, Trevor has provided observation for placement and compaction of earthwork tunnel and foundation excavations, retaining walls, for compliance with plans and specifications. He has also managed and participated in subsurface explorations and conducted field and laboratory tests for concrete. In addition to supporting geotechnical projects, Trevor also performs drafting for foundation, site grading, drainage plans, as well as assisting with laboratory testing of soil. 


  • BS, Mining Engineering, Missouri University of Science and Technology, 2008


  • ACI Concrete Field Technician - Grade I
St. Louis

Practice Area

Geotechnical Services

Seattle Website Design