Ian Hers is a Senior Associate Engineer with Golder Associates located in Vancouver, British Columbia and has worked for Golder since 1988. He has 20 years professional experience in environmental site assessment, human health risk assessment and remediation of contaminated lands. Ian is a technical specialist in the area of LNAPL and DNAPL source characterization, monitored natural attenuation and source zone depletion, vapour intrusion, and vapour-phase in situ remediation technologies, and directs or advices on projects for Golder at petroleum-impacted sites throughout North America. He has developed guidance on LNAPL assessment and mobility for the BC Science Advisory Board for Contaminated Sites (SABCS) and the BC Ministry of Environment. Ian joined the ITRC LNAPL team in March 2008. Ian earned a bachelor's degree in 1986 and master’s degree in 1988 in Civil Engineering from the University of British Columbia in Vancouver, BC. He then completed a doctoral degree in Civil Engineering from University of British Columbia in 2004. He is on the Board of Directors of the SABCS, is a Contaminated Sites Approved Professional in BC, and is a sessional lecturer at the University of British Columbia.