Julia Cisneros, University of Illinois at Urbana Champaign, Geology, Urbana, IL, United States, Jim Best, Univ. Illinois at Urbana Champaign, Geology, Geography & GIS, Mechanical Science and Engineering and Ven Te Chow Hydrosystems Laboratory, Champaign, IL, United States and Marcelo H Garcia, University of Illinois at Urbana Champaign, Urbana, IL, United States