Professor Lenhart runs the " Reactions at Mineral-Water Interfaces: The Role of Solute Adsorption on Contaminant Co-Adsorption, Mineral Dissolution and Colloid Behavior" topic session in Hydrogeology Division at the 2006 Philadelphia GSA annual meeting (Co-organizer : Daniel E. Giammar, Washington University) .

 Recent journal paper/abstract presented : Yu Sik Hwang and John J. Lenhart, "Competitive adsorption of low-molecular weight organic acids at hematite/water interfaces", presented at the 232nd ACS National Meeting (09, 2006).