1. Postdoctoral Fellow, Environmental Biotechnology Institute, Univ. of Idaho, Moscow, ID 83844.
2. Geotechnical Engineer, U.S. Nuclear Regulatory Commission, Washington, DC 20555-0001 (corresponding author).
3. Geotechnical Engineer, Coeur d'Alene, ID 83815.
4. Assistant Dean and Director of Research Facilities, College of Sciences, Univ. of Idaho, Moscow, ID 83844.
5. Associate Professor, Dept. of Biological and Agricultural Engineering, Univ. of Idaho, Moscow, ID 83844.
6. Professor Emeritus, Univ. of Idaho, Moscow, ID 83844.