da. Reeqvery of plutonium in soul at concentrations greater than 4) pf ug 259,24 oy at any depth these levels are found. The justification ts the wnrount of value well below 40 pCi/g 249440 py, The justification is to keep air cancentrations of resuspended plutonium to levels well within national and international standards. A. b. Plutomiuns eoutaminated sol on IRLNE should be handled the same as on YVONNE and using the same general criteria for removal except it expected that preces of plutonium metal will be found. is not a. Since it 1s recommended that replanting of food crons be limited to certain islands, test plantings of pandanus, breadfrurt, coconut, and arrowroot showd be wade, as soon as prowth can he assured, on each of the stands widieated for such crops by the Enewetak people. as caaple parts of phese plants became avaiable, ther concentrations of 2%sr, significant radionuclides should be os, jessured 23% ?49py and any other and eo.pared with the rachological survey predictions, These studies witl provide for a determination to he nade of the earhiest time at which planting of food and cuinmercial erops can be made on islands other than those listed in 2b. and 2c. above. requiring disposal, and least 12 calendar The ¥YVONNIJ quarantine should remain in effect The cleanup phase of rehabitation, we., removal and disposal of contaminated s¢rap, debris, and soil, should be carefully documented in a comprehensive final report frou those conducting the cleanup operation. The planning and conduct of cleanup, including radiological support for cleanup, should be samilar to cleanup of Bikini Atoll and advantage taken of that experrence. As Hikim people were given opportunity for employment during cleanup, an ¢ ial opportunity should he given I newetak people it they desire months. €P 4 comprehensive air sampling program should be conducted over a period of 12 consecutive months under conditions closely approximating human This would add to the body of available information on radioactivity levels in air. This program could be conducted ecincident with and in support of cleanup operations. Base-hne surveys of bady burdens and umne content of 375 and sr should be taade for the Fnewetak people prior to return to Lnewetak ‘toll, after the first year of residence, and as appropriate thereafter. Resurveys of the environinental raciation and radioactivity levets should be made starting in the first year of return and repeated every other year. To he determined 19 the the diet and the 4dclual average daily dietary intase of radioactivity for various age groups for eomparison with estimated levels and how radioactivity levels in water, air, soil, plants, and animals are changing with time. (included should be measurements of radionuclide content of air and collection of information on the chemical and physical forn and size distmbution of particles in access If disposal 1s deferred for further study, such study should be planned understanding of processes which are operating -, gt which oa" be made to of with and conducted promptly. operate - to reduce the ecological haif-life of 2%Sr and Wee below the radhoretive half-hfe on the northern islands, especially JAN ET. adequagy such controlied and all visitors and workers monttored ay for a radiation eontrol zone, Haeteral content, salinity, and radionuclide content should be measured, but primary emphasis of the program should be placed on development of an habitation and expected sail disturbance. wanting Asa minimum, ckeanup should accomplish the recovery of plutonium contaminated sotl and serap into storage on YYONNL. An underground Lens water sampling and analysis programshould be conducted in whieh satiples are taken over a period of at not Group recominends the following: After soll removal, all areas should be resuryeyed tn ensure no preces or hot spots of plutonium: remain, material problems to delay cleanup and rebabtlitation of the Atoll, the Task that plutonium at some depth may one day he at the surface. Also, recovery of contammiated soi) sufficient to reduce surface levels to a the air containing 297Pu.) Information from such surveys will provide a continuing check of the radiological status of the people and the environment and will assure that the exposure criteria is not heing approached of exceeded. Considering that the method of disposal of plutonium contaminated soil and serap has not yet been decided, that not enough information 1s avatlable to deterinine whether ut is feasible to remove plutomuns trom the sort to reduce FIGURE 2-2. RECOMMENDATIONS FROM THE REPORT BY THE AEC TASK GROUP ON RECOMMENDATIONS FOR CLEANUP AND REHABILITATION OF ENEWETAK ATOLL,JUNE 19, 1974 (CONTINUED).