‘x SEC G~~era~ S’&rbird ‘&en commented on the work of the planning board whkh had been established to consider radiological safety criteria as well as means of reducing locai fallout. He said that in view of the Commission discussion at Meeting 1246, an accelerated review had been made of each planned shot to determine how the estimated faliout of the Ge shots could be reduced aad that the 4,000 megacurie figure was the result of this review. Mr. Libby said ‘&et ia accordance with Commission discussion at Meeting 1246, he had reviewed radiation effects data. He then commented on the basis of the calculations made of the radiation doses r ecaived by individuals in the vicinity of NTS and observed that the actual radiation deses received by these peeple are probably less by a factor of two +tn the measured values. Therefore, he said he believed the 10 roentgen limit for radiological criteria was a conservative figure. discussed with Mr. Grcives the The C ommissioners manner in which radiatien doses had been measured at NTS. Mr. Libby suggested that although the figures used at NTS are conservative, an improved and expanded monitoring program ‘ should be conducted in the communities surrounding NTS. He said that the new figures would be valuable iii ari examination of the fallout problem at NTS prior to the next test series after Operation PILGRX.M. Mr. Murray then commented on the possibility of moving some of the proposed shots such as the 60 kiloton shot, to the lbiwetok Proving Ground. He said that this action might preclude any adverse public reaction which would affect the availability of NTS for future tests. Mr. Graves commented that the proposed 60 kiloton shot would be a high tower shot and would actually be less tiqicult than some of +Ae other - 765 - T