IGS North America, President and Member GeoInstitute of ASCE Unsaturated Soils Committee, Vice-Chair and Member GeoInstitute of ASCE Geoenvironmental Engineering Committee, Member ISSMGE TC 308 on Energy Geotechnics, Webmaster and Task Force Leader on Public Outreach ASTM D18.04 Hydrologic Properties and Hydraulic Barriers, Member and Past Chair ASTM D18.09 Dynamic and Cyclic Properties of Soils, Member and Past Chair |
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