ee 3.11.2 Eniwetok Recovery and Re-entry. 3-56 The operational phase of HARDTACK commenced with two (2) temporary camps in operation; at Yvonne a camp wag established in support of the Cactus event while at Janet a camp was established and operated in support of the Koa event. The permanent base camp for scientific operations was established at site Parry. Personnel having primary interest in the early Eniwetok events, particularly Cactus and Koa, lived at the temporary camp sites. All recovery and re-entry operations were controlled from the base camp at Parry. 1. The normal re-entry - recovery operation was as follows: Requirements for re-entry - recovery operations were sutmitted by project personnel on special cards designed specifically for this pur> pose. 2. After cards were edited, they were published as an annex to the evacuation and re-entry letter which served as the Task Group operation order for the event. 3. After publishing the evacuation and re-entry letter changes were posted to a master copy in the J~3 Office. On minus two all project personnel who had established requirements for the event were queried to reaffirm the requirement. This procedure was repeated on minus one to firm up the shot day requirements and was repeated as often as minus one days occurred. lh. Initially it was decided that the Rad-Safe survey would commence at H/3 hours with a survey of the critical recovery areas to be followed by a more detailed survey at H/5 hours to specifically delineate the Radex areas, However, it was determined after the first two events that a survey time of H/l hour was more realistic and provided a much better working period for the early recovery operations. With the exception of Cactus and Koa, two surface bursts, radiation levels were seldom of an intensity to prevent early recovery of critical scientific data. Critical recoveries were normally completed on shot days although the radiation levels did force a delay or postponement at times. A pre-dawn detonation favors recovery operations, and all other factors being equal, should be sought as the optimum condition. 5. Following the radiological survey of the contaminated areas, re- covery teams were immediately dispatched to their respective stations to effect recovery if the radiation dose was suitable to the individ- ual and the stay time involved, Several unique recovery operations were undertaken during Operation coPiED/DOF LAAL RG HARDTACK. These included the recovery of floating coracles, film packs, } Bnvien sn ~~ <a } — 3 PAGE “2P3*

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