Steve Stacy is ARCADIS' Senior Munitions Response Geophysicist and a senior leader within their Technical, Knowledge and Innovation group. He has a M.S. degree in Geophysics from Purdue University, over 13 years of environmental consulting experience, and over 10 years of direct munitions response geophysics experience. He is principal investigator for ARCADIS' ESTCP contract and has led the data collection, processing, and advanced geophysical classification efforts during multiple live site demonstrations throughout the contract. In addition to performing advanced geophysical classification at live sites, he has also helped the US Army Corps of Engineers develop advanced geophysical classification guidance within EM 200-1-15.