1. Engineer, Urban Watershed Management Branch, Water Supply and Water Resources Division, National Risk Management Research Laboratory, U.S. Environmental Protection Agency, 2890 Woodbridge Ave. (MS-104), Edison, NJ 08837 (corresponding author).
2. Scientist, Cadmus Group, Inc., 57 Water St., Watertown, MA 02478.
3. Senior Associate, Cadmus Group, Inc., 12 River Meadows Dr., Steep Falls, ME 04085.
4. Principal Research Scientist, Battelle Memorial Institute, 7231 Palmotto Dr., Baton Rouge, LA 70808.
5. Director, Environmental Engineering, Louis Berger Group, Inc., 295 Promenade St., Providence, RI 02901.