Rachel Saari is a Principal Engineer with Arcadis where she serves as a technical expert on vapor intrusion mitigation and has over nineteen years of experience in the design, operation, and maintenance of soil vapor extraction and vapor intrusion mitigation systems. Rachel is certified in radon mitigation through the National Radon Proficiency Program (NRPP) and is a member of the American Association of Radon Scientists and Technologists (AARST). Ms. Saari is an active member of the AARST Consortium and participated in the development of the ANSI/AARST Soil Gas Mitigation Standards. Rachel received her B.S. in Environmental Engineering, from Michigan Technological University, and is a Professional Engineer in the State of Michigan.