1. Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213-3890
2. U.S. Geological Survey, Water Resources Division, 3215 Marine Street, Boulder, Colorado 80303-1066
3. Soil, Water and Environmental Science Department, 429 Shantz Building, 38, The University of Arizona, Tucson, Arizona 85721
4. DuPont Environmental Biotechnology, Glasgow Building 300, P.O. Box 6101, Newark, Delaware 19714-6101
5. Department of Civil and Environmental Engineering, 48-415, 15 Vassar Street, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
6. The Connecticut Agricultural Experimental Station, 123 Huntington Street, P.O. Box 1106, New Haven, Connecticut 06504
7. Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305-4020
8. School of Natural Resources, The Ohio State University, 410B Kottman Hall, 2021 Coffey Road, Columbus, Ohio 43210-1086
9. Department of Civil and Environmental Engineering, Environmental and Water Resources Engineering Building, The University of Michigan, Ann Arbor, Michigan 48109-2125
10. Department of Chemistry, Oregon State University, Corvallis, Oregon 97331