CHAPTER I, SECTION 1 The preparation by each Task Group of a check list of tasks to be performed for each event covering the period of shot day minus five through shot day plus three, facilitated the placing of all facilities in a state of readiness for each test. These lists indicated when facilities could be secured, equipment moved, and which utilities were to be serviced for operation during the event. Similar lists covering re-entry provided for rapid reoccupation and re-establishment of vital support services. Fourteen evacuations to sea of the personnel in Bikini Atoll were required for seven events scheduled in that area. Of these seven events one was re-scheduled, after evacuation had been completed, to take place in Eniwetok Atoll. Evacuation to sea of personnel at Eniwetok Atoll was not required; however, the capability of accomplishing this task was maintained. Measures taken for the protection of per- sonnel, equipment and property were governed by predictions of overpressures, thermal energy, radioactive contamination and the extent of inundation as furnished by Task Group 7.1. With respect to camp and otherservice facilities, two conditions of test readiness were applicable. Where damaging pressures were probable, camps and facilities were completely rolled-up; where damaging pressures were considered remote, they were left intact. In this latter case, limited precautions against blast, fall-out, or inundation were taken as deemed advisable for each event. With respect to scientific structures and facili- ties, the measures for test readiness were as re- quested by scientific personnel. Figure 1-14. Page 1-30 The roll-up of a camp was generally scheduled to commence on D-5 and to be completed by noon of D-1 day. The roll-up consisted of removing all equipment, materials and supplies worth saving for shipment to Elmer from Eniwetok Atoll camps and to Nan for further transshipment to Elmer for Bikini Atoll camps. The roll-up was accomplished according to schedule and in phase with personnel reductions at each site, with provisions for continued meal service through an early lunch on D-1 day. Only those buildings in temporary camps that could be moved bodily and tent canvas in good condition were salvaged. As scheduled, the roll-up of the Yvonne camp waseffected prior to the LaCrosse event, the Fox camp prior to Cherokee and Tare prior to Zuni. The camps at Gene and Ursula were left in a condition for rapid reoccupancy after the LaCrosse event. As a result of the radioactive contamination of these sites by this event, roll-up commenced shortly thereafter. It has been the practice in previous opera- tions to remove most of the installed equipment in scientific stations to Elmer for storage during the interim period. For the roll-up following REDWING, a decision was made to preserve in place all such equipment except electric motors. All electric motors were moved to Elmer where they were overhauled and tagged with station and equipment numbers, then placed in dehumidified storage. When the motors were removed the corresponding driven equipment was also tagged with the motor number to ensure proper reinstallation when required. During the interim period following REDWING periodic inspections of installed equipment and maintenance measures will be performed as necessary. Structural Frame for Warehouse