1. Air Quality Specialist, San Luis Obispo County Air Pollution Control District, San Luis Obispo, CA 93401; formerly, Irrigation Technician II, Irrigation Training and Research Center (ITRC), California Polytechnic State Univ. (Cal Poly), San Luis Obispo, CA 93407.
2. Chairman, Irrigation Training and Research Center, BioResource and Agricultural Engineering Dept., California Polytechnic State Univ., San Luis Obispo, CA 93407.
3. Irrigation Support Engineer III, Irrigation Training and Research Center, California Polytechnic State Univ. (Cal Poly), San Luis Obispo, CA 93407.
4. Professor of Water Resources Engineering, Univ. of Idaho, Kimberly Research and Extension Center, 3793 N. 3600 E., Kimberly, ID 83341.