1. Postdoctoral Fellow, Sustainability Solutions Initiative, Univ. Maine, Orono, ME 04469-5711; formerly, Research Assistant, Dept. of Civil Engineering, Auburn Univ., Auburn, AL 36849-5337.
2. Professor, Dept. of Civil Engineering, Auburn Univ., Auburn, AL 36849-5337 (corresponding author).
3. Research Hydrologist and Professional Geoscientist, U.S. Geological Survey, Texas Tech Univ., Lubbock, TX 79409.
4. Associate Professor, Dept. of Civil and Environmental Engineering, Texas Tech Univ., Lubbock, TX 79409-1023.
5. Director of Engineering, R.O. Anderson Engineering, Inc., Minden, NV 89423.