ASK UNIT - J Servis, Ma USA RADIOLOGICAL SAFETY (J. D. Servis) A partial Red-Safe survey was conducted oY day with incomplete atoll results. Results of this survey did indicate thet Bokobyaadaa, Namu, Enirikku, Bikini, and the Yurochi - Aomoen chain were materially contaminated. Reentry and recovery were accomplished to a large degree on | shot day. Wo secondary fall-out was detected as having re- R sulted from this shot. Lagoon contamination was restricted to a V shape pattern vith apex at Eninman and tips covering the Bokobyaadaa - Aomoen trea, A reading of 100 mr/hr was obtained over the Eninman ‘chorage at H#4 hours. Enyu anchorage was clear of contami- -lon while Bikini anchorage showed traces of contamination it H+ hours. crater was materially different from that of dn that radiation levels within crater were dependent 82 "shine" from the lip of crater, and surrounding “sand dunes." BEST AVAILABLE Copy pill

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