Case 4 - Living on Southern Islands and Enjebi; Subsistance and Commerical Crops on Southern Islands and, Under Controlled 5.5.5 Conditions, on Enjebi; Material, Soil and Some Plutonium Cleanup Assuming the effectiveness of the corrective measures to be suggested, Case 4 would still result in annual and 30-year gonadal doses {Task Group Report, 1974) at or above the ERDA guidelines for those who would live on Enjebi, and would be well above those predicted for Case 3. The success of this case would depend upon the following factors (Figure 5-4): e Importation of food for the Enjebi inhabitants. While this is the most dependable method, it would be a long-term burden on the driEnjebi which would eventually become objectionable to them. @ Removal of soil and replacement with imported soil. This method is not as certain a safeguard against internal exposure as the importation of food, but in theory it is possible that it would reduce the dose from pandanus and breadfruit to levels comparable to those found on the southern islands. All this depends upon providing sufficient imported soil to encompass the entire root system of the mature trees, and that factors do, not exist which would lead to recontamination. In any event, there is reasonable doubt that safe levels could be attained by soil replacement alone. e The water supply for these crops must not have radioactivity levels higher than those in the southern islands. Wtrenserded Casectsconditimas, Pieactienc-comprising,Case 4 would be as fellexs: One ery-cd (fg rn +h, fo IkWAT Hern & or, 5.5.5.1 Habitation Plan. If the cleanup actions to“be described in Paragraph 5.5.5.2 should prove to be as effective as predicted, the Enjebi people could be permitted to return to their island with the following conditions applying: e Residence would be restricted to the southern islands, Jinedrol e Pandanus and breadfruit would be cultivated in the south and in e Other subsistence crops, e.g., arrowroot, papaya, etc., would be grown only in the south and on Enjebi. through Kidrenen and Enjebi. imported soil on Enjebi (Paragraph 5.5.5.2). 5-25