tamination still prevalent in many of the Bikini areas. As a re- sult, it was necessary to employ decontamination measures with the marine craft which had been anchored near Enyu during SH7S “in order to permit evacuation of these craft to Eniwetok Atoll. Also close control of personnel exposure records and assignment to contaminated work areas was necessary in order that no individual would reach or exceed the maximum permissible exposure. On 11 May the equipment roll-up at Bikini was considered complete. On 12 May an LCU was dispatched to Rongerik Atoll via the USS BELLE GROVE to dismantle and remove the equipment from the JTF SEVEN weather station which had been evacuated after SHo7/. With the return of this equipment to Eniwetok, all material involved in the post+SH07S roll-up had been removed to Parry Island. The post+SHo7G scientific data and equipment recovery program was started 17 May at Eniwetok and progressed smoothly to completion on 20 May. Other equipment on Parry Island which had been brought from Bikini. or Rongerik or which had been declared surplus for interim period needs was either removed or placed in mothballs. The unused test materials, regardless of classification or accountability, were returned to the ZI aboard the CURTISS and, upon arrival on the west coast, were transported to final destinations under the direction of AEC. A major item of deactivation for the Scientific Task Group was the mothballing of the TU 2 cryogenics plant and associated equipment. 152