1. Department of Crop and Soil Environmental Sciences; VA Polytechnic Institute and State University; 330 Smyth Hall Blacksburg Virginia 24061
2. Department of Civil and Environmental Engineering; VA Polytechnic Institute and State University; 330 Smyth Hall Blacksburg Virginia 24061
3. Virginia Water Resources Research Center; VA Polytechnic Institute and State University; 330 Smyth Hall Blacksburg Virginia 24061