1. Manager, Infrastructure Research, Community and Government Services, Government of Nunavut, P.O. Box 1000, STN 700, Iqaluit, Nunavut, Canada X0A 0H0.
2. Research Assistant, Environmental Engineering Program, Dalhousie Univ., 1360 Barrington St., Halifax, Nova Scotia, Canada B3J 1Z1.
3. Associate Professor, Industrial Engineering Dept., Dalhousie Univ., 1360 Barrington St., Halifax, Nova Scotia, Canada B3J 1Z1.
4. Associate Professor, Dept. of Process Engineering and Applied Science, Dalhousie Univ., 1360 Barrington St., Halifax, Nova Scotia, Canada B3J 1Z1 (corresponding author).