Course Description

Sustainable remediation, natural attenuation, and “nature-based” remediation have emerged as key considerations in remedial decision making at petroleum release sites impacted by light non-aqueous phase liquids (LNAPL). Within this context, a new compendium of tools and methods to support the selection, optimization and termination of active remediation systems has been developed. It is a systematic, non-prescriptive approach intended to improve remedial decision making. The compendium builds on recent knowledge and toolkits for incorporation of natural attenuation and sustainability in site management process.



Dr. Ian Hers

Dr. Ian Hers is a senior consultant and Principal of Golder Associates located in Vancouver, B.C., Canada with 27 years professional experience, and is the global vapour practice leader for Golder Associates.Ian has helped develop guidance for regulatory agencies in Canada, US and UK, authored over 20 technical papers on vapour intrusion, and has conducted research projects on vapour intrusion for the Contaminated Sites Approved Professionals Society of BC, Health Canada, US EPA, American Petroleum Institute, Shell Global, Science Advisory Board for Contaminated Sites of BC and other organizations. He made significant contributions to the Interstate Technology and Regulatory Council (ITRC) guidance on Petroleum Vapour Intrusion and Light Non-Aqueous Phase Liquid management, and regularly provides internet-based training for ITRC on these topics. Dr. Hers holds a Ph.D. in Civil Engineering (University of British Columbia), is on the Board of Directors of the Science Advisory Board for Contaminated Sites, and is a Contaminated Sites Approved Professional in British Columbia.

Course curriculum

  • 1

    Compendium of Tools and Methods to Support the Optimization and Sustainable Transition of Active Remediation to Natural Attenuation

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