projected additional exposure would have raised their total to over 15 R; these men did not return aboard the YAG. Task Unit 7.3.7 (Bikini Harbor Unit) The USS Belle Grove, as Task Element 7.3.7.0, and the Bikini Boat Pool, as Task Element 7.3.7.1, made up the Bikini Harbor Unit. Pool operated 15 LCMs, -1225, and ~1348), The Bikini Boat 5 LCUs with permanent crews (LCU-637, -638, -1224, 2 LCPRs, an LCPL, a 28-foot motor whale boat (MWB), an Air Force crash boat (AVR), and a covered barge, YFN-934. The latter served as a dispatching facility and spare parts store for boat pool operations between shots. Together with the H&N Boat Pool, the Navy Boat Pool provided interisland and ship-to-shore transportation to the joint task force at Bikini. The Belle Grove also transported shot devices from Ene- wetak to Bikini as the Special Devices Transport Element, 7.3.9.0, of TU 7.3.9, the Transport Unit. During evacuations for Bikini shots, the Belle Grove took the 15 Navy LCMs and the AVR into its well deck. Remaining craft, including the five LCUs, were moored in the lagoon in the lee of Eneu Island. tug towed YFN-934 to sea. A Utility Unit Both Navy and H&N personnel, along with a TG 7.1 radsafe advisor, went aboard the Belle Grove, which was one of the last ships to leave the lagoon and one of the first to reenter during shot operations, allowing critical construction and recovery operations to proceed with the least possible interruption. The Belle Grove's activity for each shot is described in Table 78. After reentry following a shot, the Belle Grove put both boat pools into operation as soon as the lagoon was declared safe for boating. At the same time, Navy boat pool personnel, with assistance from ships' crews, began decontaminating the craft left behind. These assignments created a far greater possibility of radiological exposure than for most other units. This is reflected in the waiver of MPE for boat pool crews following shot BRAVO. Altogether 49 members of the boat pool and 2 crewmen from the Belle Grove received exposures over 3.9 R. 366