1. Associate Professor, Dept. of Civil Engineering, Dalhousie Univ., Halifax, NS, Canada B3J 2X4.
2. Project Engineer, Cavanaugh Solutions, Winston-Salem, NC 27101.
3. President, Aqua Plus Services, Muncie, IN 47304.
4. Associate Professor, Dept. of Biological and Physical Sciences, Indiana Univ. Kokomo, Kokomo, IN 460904-9003.
5. Research Associate, Dept. of Biological and Physical Sciences, Indiana Univ. Kokomo, Kokomo, IN 460904-9003.
6. Professor, Dept. of Civil Engineering, Univ. of Toronto, Toronto, ON, Canada MIS 1A4.