1. Assistant Professor of Environmental Engineering, School of Science, Engineering and Technology, Penn State Harrisburg, 777 W. Harrisburg Pike TL-105, Middletown, PA 17057 (corresponding author).
2. Engineering Technician, Dawood, Inc., 2020 Good Hope Rd., Enola, PA 17025; formerly, Project Engineer, Navarro and Wright Consulting Engineers, Inc., 151 Reno Ave., New Cumberland, PA 17070.
3. Environmental Engineer, Greeley and Hansen, Inc., 1818 Market St., Ste. 3400, Philadelphia, PA 19103-3613.
4. Research Scientist, School of Science, Engineering and Technology, Penn State Harrisburg, 777 W. Harrisburg Pike TL-123, Middletown, PA 17057.
5. Associate Dean, School of Engineering, Univ. of Alabama at Birmingham, 1075 13th St. S., Birmingham, AL 35294.