Observers L. Joe Deal - Assistant Director for Field Operations Division of Operational and Envirenmental Safety U. S. Energy Research and Development Administration Tommy F. McCraw Division of Operational and Environmental Safety _ U. S. Energy Research and Development Administration Roger Ray Assistant Manager for Environment and Safety Nevada Operations Office U. S. Energy Research and Devel.opment Administration Paul B. Dunaway Director, Bioenvironmental Sciences Division Nevada eOperetions Office U. S. Energy Research and Development Administration It. Col. Edwin T. Still, D.V.M., USAF Research Program Coordinator Armed Forces Radiobiology Research Institute Defense Nuclear Agency Bruce W. Wachholz, Ph.D. - Office of the Assistant Administrator for Environment and Safety UM. S. Pnergy Research and Development Administration