Mark A. Hasegawa is an Associate with Hasegawa Engineering Ltd. in Lethbridge, Alberta. He has a BS in Civil Engineering from Brigham Young University and a MS in Environmental Engineering from the University of Oklahoma, with a specialization in Process Design and Surfactant Chemistry under Dr. David Sabatini. While at the University of Oklahoma, Mark was selected to teach two courses: the introduction to water chemistry and computer assisted engineering analysis. Mark has worked in the environmental remediation field for 10 years and has specialized in NAPL/DNAPL remediation, and process design, and has been involved in the development and deployment Surfactant Enhanced Subsurface Remediation. Mr. Hasegawa has supervised over 10 surfactant enhanced NAPL remediation projects including several DNAPL sites which include: McClellan AFB, Alameda Naval Air Station, a Chemical Plant in Michigan, Dover AFB, and Tinker AFB. Mark was project manager for the aforementioned project and supervised process design for each project. He has extensive experience in performing risk analysis at sites and has supervised the completion of numerous site specific risk assessments. He was also one of three approved trainers utilized by the state of Oklahoma to train consultants on the implementation of Risk Based Corrective Action in the state. Mark is also a registered professional Engineer in several states and provinces. In addition, he has co-authored several peer-reviewed papers and presented on various DNAPL and risk assessment topics at numerous conferences. Mr. Hasegawa currently serves on the DNAPL team of the Interstate Technology Regulatory Council (ITRC).