1. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01003; presently, Water Resources Engineer, CDM Smith, Boston, MA.
2. Graduate Research Assistant, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01003; presently, Assistant Engineer, Hazen and Sawyer, Charlotte, NC.
3. Associate, Hazen and Sawyer, 498 Seventh Ave., 11th Floor, New York, NY 10018.
4. Manager, City of Baltimore, Dept. of Public Works, 100 N. Holliday St., Baltimore, MD 21202.
5. Fellow, Department Head, and Professor, Dept. of Civil and Environmental Engineering, Univ. of Massachusetts, Amherst, MA 01003 (corresponding author).