Table 1. Assumed living patterns. Case 1 Description *o use of bikini Island tor the present us a housing or food production area. Use of Eneu [sland for housing and food production. Unrestricted use of fish throughout the atoll. Vimited use of bikini Island with residence in houses already constructed. No additional house construction on Bikini Island for the present. of coconuts grown on Bikint Island only. ‘tse of Bikini 3 Island. Other food crops grown on Encu Use Unrestricted use of fish from all parts of the atoll. [sland lens water for apriculture only. Limited use of Bikini Istand with the following remedial actions taken: (a) placing S em of clean coral gravel around the existing houses out to a distance of 10 m, and (b) removal of the top 20 cm of soil and replacement with clean soil out to a distance of 10 m around the houses. All foods yrown on Bikini Isiand are acceptable except pandanus and breadtruit. Unrestricted use of fish throughout the atoll. Use of Bikini Island lens water for agriculture only. 4 5 Limited use of Bikini Island with Phase II houses constructed only along the lagoon road within area 2 of Fig. 4. Remedial actions 3a and 3b are taken. Use of coconuts grown on Bikini Island. No use of pandanus and breadfruit from Bikini Island. Unrestricted use of fish throughout the atoll. Phase II housing construction according to the Preliminary Bikini Atoll Master Flan, out no use of pandanus and breadfruat from Bikini Unrestricted use of fish throughout the atoll. and washing only, 6 Island. Lens water for agriculture Phase II housing constructed according to the Preliminary Bikini Atoll Master Plan. All foods grown on Bikini Island are acceptable. Unrestricted use of fish throughout the atoll. Lens water used for agriculture and washing only. pattern to be inferred by proper utilization of the results obtained for these cases. ‘Ute Vhal tc s5e5 180 .snecluce aSsumpisons on cae food prouuction and consumption fians of the returning population. This information is only required for the internal dose assessment via the specific food chains, and hence is not pertinent to the external dose calculations. The cases are based upon the assumption that the people will reside on either Bikini or Eneu Island in accordance with the Preliminary Bikini Atoll Master Plan. For purposes of this report, the cases are primarily directed toward assessing the external dose associated with various options for housing locations on the two islands. The first case is based on the assumption that the people will live only on Eneu Island. The remaining cases assume residence on Bikini Island at different village sites with various remedial actions being taken to reduce the exposure rates. Thus, cases 2-4 assume the residences are situated along the lagoon road on Bikini Island, areas 1 and 2 in Fig. 4, while cases 5 and 6 assume the people will live within the interior portions of the island, -S-