Senior Principal Engineer
Geosyntec Consultants, Inc.
Dave Folkes is an internationally recognized expert on vapor intrusion (VI) investigations and mitigation. He has worked on over 200 VI projects over the past 20 years, including management of one of the largest VI sites in the US, and has also served as an expert witness on several major VI cases. Dave has been an invited speaker at numerous EPA, state, and industry VI conferences, seminars, and training sessions across the country, and has been asked to review several state VI guidance documents. He helped develop and served as an instructor for the ITRC 2007 VI and 2014 Petroleum VI guidance documents. Dave also served as a reviewer of VI research projects for the SERDP and ESTCP programs for several years. Internationally, Dave has worked on VI sites in Australia, Belgium, Brazil, Canada, France, Italy, Malaysia, and Sweden.