e Removal of plutonium contaminated soil from Boken, Lujor, and Runit and the removal of plutonium crypts on Aomon. e Scraping and removalof 10 cm of soil from Lujor and Kirunu, 14 cm of soil from Bokombako, and 47 cm from Bokoluo. t e Scraping and removal of 30 cm of soil from areas where pandanus and breadfruit would be grown on Enjebi, Alembel, Aomon, Bijire, Lojwa, Lujor, Aej, Ananij and Runit. e Scraping and Removal of 15 cm of soil where commercial coconut crops will be grown on the same islands. e Scraping and removal of 15 cm of soil in other subsistence agricultural areas on Enjebi. e Replacing soil from scraped areas with at least equal depths of imported soil. 5.5.6.3 Conclusions. Case 5 is clearly more difficult and more expensive than the other cases as it requires removal and replacement of much more soil in the cleared areas (Case 3: 79,000 cu yds; Case 4: 318,000 cu yds; Case 5: 779,000 cu yds). Consideration of the actions in Case 5asa viable alternative is clouded by uncertainties regarding the exposure reduction that can be achieved through partial soil removal and selective soil replacement. In view of these considerations and the additional high cost of the operation, Case 5 is not recommended as a course of action. 5.6 EVALUATION OF ALTERNATIVE PROGRAMS Several considerations are treated quantitatively here to assist in selecting a suitable course of action in cleanup and rehabilitation of Enewetak Atoll and in resettlement of the Enewetak on the atoll. These considerations include estimated dose and the associated radiological risk and the financial costs of alternative programs. The effectiveness of each alternative program in reducing the estimated potential population radiological dose are evaluated by calculating whole body, bone, and lung dose for each program (see Paragraph 5.6.1). These doses are estimated on two time bases: a 30-year dose and a maximum annual dose. Relative values of radiological risks for each alternative program is estimated in Paragraph 5.6.2. Estimates of the financial costs of selected alternative programs and associated disposal methods are discussed in Paragraph 5.6.3. 5-30