Page 6 addition, there are 524.31 acres in the northern islands which have intermediate levels of residual radioactivity _that are judged to be suitable for raising coconuts. Based on all of these considerations, it. appears that from a cost-benefit standooint the use of Case 3 would be the optimum solution to the question of resettling the Encwetakese. On the other hand, if the drilnjebi would be extremely Gissatisfied under these conditions, political end social indications mey be such that they should be allowed to resettle on Enjebi, thus necessitating the use of Case 4. In this instance, the annual dose to indivicuals would exceed the AEC limits, but would be below those set by the FRC (whole body 0.35 rem/year vs. 0.5: bone.0.975 rem/year vs. 1.5; and bone marrow 0.3 rem/year vs. 9.5). It would leave a residual of approximately 140,000 cubic yards of contaminated soil end/or soil and vadioactive debris to be disposed of other than thet which could be achieved through crater dunping or crater containment. It would very likely require indefinite storage of soil on the island of Runit until suitable methods of disposal could be developed anc agreed upon. If the technicue of crater containnen1t is finally judged to be feasible, it should provide a reasonable degree of protectic: $™ -from the stored radioactive materints. One then might consider utilizing an additional crater to contain the residue of radioactive scrap and soil as mentioned above. This woulda require a cube apvroximately 73 feet on a side and 73 feet deep. With the apparent relative insolubility of the residual as that from sealed craters would acpear to present a minimal hazard. _ -BEST COPY AVAILABLE Bes Atey = ae “- plutonium and fission products in this material, relatively small leaks into and out of a structure of this sort as well Thank you for the opportunity to review this draft statement. Sincerely, " . . [Bair Ce Lat Charles Custard - pOE ARCHIVE Director Office of Environmental Affair pre