About Us


Derek Lash

Derek Lash, PE, CPESC
Civil Engineer

BS Civil Engineering, Michigan Technical University

Derek Lash has 21 years of experience in the design, documentation, and construction mgmt. of civil engineering projects including transportation, LID design, stormwater management, and wetland restoration. Derek’s background in geotechnical engineering, erosion control, and wetland ecology provide a depth of knowledge to EOR’s engineering, site design, water quality, and ecorestoration projects.