“nvu-t98 NVO-15¢ rf | a 4 7 - 7 { j - 4 PLANNING AND OPERATIONS DIRECTIVE 9975 DIMRABSLOGICAL SURVEY Denaraneses| Tram \ 4 $26 U.S. ATOMIC ENERGY i UC_GOMMISSION = ———=", etteetos HECraw fo 4 | t Operahons Pirechve [Polder nh "RedalagucalSue ; y JUNE 1975 UNITED STATES ENERGY RESEARCH AND DEVELOPMENT ADMINISTRATION NEVADA OPERATIONS OFFICE LAS VEGAS, NEVADA