1. Postdoctoral Fellow, The University of Texas at Austin, 1 University Station C1786, Austin, Texas 78712-0273, United States , phone: (512) 791-1567
2. Staff Engineer, Carollo Engineers, 8911 N Capital of Texas # 2200, Austin, Texas 78759, United States
3. Bettie Margaret Smith Chair of Environmental Health Engineering, Department of Civil, Architectural, Environmental Engineering, The University of Texas at Austin, 1 University Station C1786, Austin, Texas 78712-0273, United States