1. P.E., Member, ASCE
2. Assoc. Prof. of Envir. Engrg., Dept. of Civ. and Envir. Engrg., New Jersey Inst. of Technol., Univ. Heights, Newark, NJ 07102. E-mail: marhaba@adm.njit.edu
3. Res. Sci., Div. of Sci., Res. and Technol., New Jersey Dept. of Envir. Protection, Trenton, NJ 08625.