Chandramauli Awasthi, North Carolina State University Raleigh, Raleigh, NC, United States, Stacey A Archfield, US Geological Survey, Reston, VA, United States, Julie E. Kiang, US Geological Survey, Office of Surface Water, Reston, VA, United States, Karen R Ryberg, USGS Dakota Water Science Center, Bismarck, ND, United States and Sankarasubramanian Arumugam, NC State University, Raleigh, NC, United States