TASK GROUP OBSERVATIONS AND CONCLUSIONS | 1 In the radiologically complex Enewetak Atoll environment there are a large number of options that may be considered for cleanup and rehabilitation of various islands. The Task Group has considered as many of these as possible and has attempted to arrive at a consensus of opinion among the drafting group and its technical advisors. Comments on draft material have been solicited from staff of several Federal agencies. the development of recommendations. Their suggestions have influenced Regarding each option, the following have been considered. 1. Determination of the radiological exposure to be expected and comparison of predicted exposures with accepted radiation exposure criteria. 2. The feasibility of actions or restrictions inherent in the option. 3. The effectiveness of the option in bringing exposures within the criteria and any uncertainties regarding the effectiveness. 4. The possible impact on the Enewetak people and on the environment. Choice of the best overall method for reduction of exposures to the lowest practicable level is a matter of judgment and opinion. The Task Group has deliberated whether actions of an engineering nature, such as soil removal, are preferable to actions that would restrict use of certain islands for permanent habitation and food production. The adverse impact of engineering ‘actions on the Atoll environment and the uncertainties regarding effectiveness have been viewed on the one hand, and the question of the extent to which the Enewetak people would comply with restrictions on the other. NVO-140 and this Task Group report present the radiation doses that may be associated with a broad range of options and provide data for calculating doses for other options for anyone who wishes to do so. The dose reduction expected for one option can be compared with that of another. -18- Dollar cost