1. Department of Geology; University at Buffalo, State University of New York; Buffalo New York USA
2. Now at Dillon Consulting Limited; Winnipeg Manitoba Canada
3. Also at Department of Civil Engineering; University of Manitoba; Winnipeg Manitoba Canada
4. Department of Earth and Environmental Sciences; Wright State University; Dayton Ohio USA
5. Now at Pacific Northwest National Laboratory, Geosciences Group; Richland Washington USA
6. Now at Water for People-Malawi; Penn Yan New York USA
7. Conservation and Survey Division; University of Nebraska-Lincoln, Lincoln, Nebraska-Lincoln