ns Soil Cleanup Operatio as occur in nuclear explosions. The AEC Task Group had recommel lifestyle for Enewetak which would limit residence to southern islan would permit coconut agriculture in the northeast.>? Utilizing NV data and methodology, the estimated doses to individuals would more than 30 percent of the AEC’s recommendations.>3 The methoc used by Dr. Bramlitt differed in several respects from the methoc used in the previous estimates. First, the Bramlitt estimates considered that each Enewetak | would obtain subsistence coconuts from specific northeastislands, than from the entire group of northeast islands. Thus, those pe having agriculture rights limited to a more highly contaminated nor island were predicted to receive a higher dose than if some of coconuts came from the lowercontaminated islands. Second, the Br estimates assumed coconut consumption to be much greater previously estimated. The increase in consumption was based statements from individuals living at Ujelang, and it made allowanc other pathways involving coconuts for which there were no radiol data; e.g.. fermented coconut sap, skin lotions, cooking oils, and consumed from animals raised on coconuts. Additionally, the re discovered higher radiation levels among the people of Bikini Atol attributed to larger amounts of coconut in their diet than had previously estimated.>4 Third, the Bramlitt estimates used Bikin made available after publication of NVO-140. The Bikini data pre greater uptake of radionuclides by coconuts. : Dr. Bramlitt’s draft study recommended: (I) evaluating the imp not planting coconuts on northeast islands; (2) collecting addition on fission products at Enewetak while support forces were availab! reevaluating the diet assumed for the dri-Enewetak after cleanup; a1 reassessing the dose for the postcleanup use of Enewetak Atoll. The Director, DNA wasbriefed on the dose estimate study on 2 1978. The draft study then was distributed on 27 July 1978 to (Headquarters and NV), members of the Enewetak Advisory Grour Committee), and the Armed Forces Radiobiological Research In: with a request for expeditious review, since the study indicate changes might be desirable in the cleanupor rehabilitation program underway. Based in part on the new data from measurements ofthe Bikini| and the recent experience of having to relocate them from Bikini DOE recommended to DOI that coconut trees not be planted northern islands of Enewetak Atoll. It is possible that Dr. Bramlitt’ estimate, raising much the same type of question, reinforced the DO thinking. While this staff view hadlittle effect on the DOD cleanup it had the potential to exert a significant effect on the DOI rehabil ee (e