J } Rowse 27 April 1973. POSSIBLE DEGREES OF ENIWETOK CLEANUP R. B. LEACHMAN DEFENSE NUCLEAR AGENCY a pe In principle, the extent of the radiological cleanup possibilities for Eniwetok Atoll range between cleanup to no detectable residual radiation and doing nothing. To facilitate making judgments on what is best, only a limited number of options between these limits should be considered. For each option, consideration must be made of the costs -- both financially and in terms of consequent insult to the islands -- and, on the other hand, consideration must be made of the remaining radiological risk to the occupants of.the Atoll. The Armed Forces Radiobiological Research Institute is currently assisting the Defense Nuclear Agency in making estimates of the radiological consequences of the various options. This effort between AFRRI and DNA is intended only to be an adjunct to the complete study being undertaken by the Atomic Energy Commission. In these different options of cleanup, residual radiological levels result from an interplay between (1) radiological levels that happen to be presented as isodoses in the existing surveys of the Atoll and (2) customary standards used elsewhere for residual radioactivity levels. sas 03919