~7 ~ c. The objectives of the cleanup are two: (1) Recovery of the pieces of plutonium that have been observed on or near the island surfoce. (2) Recovery of plutonium contaminated soil. d.- Recovery of. plutonium in soil at concentrations greater than 400 pCi/g 239, 240py at any depth these levels are found. Also, recovery of contaminated soil sufficient to reduce surface levels to a value weil below 40 pCi/g 239, ¢40Pu, After soil removal, all areas should be resurveyed to ensure no pieces or hot spots of plutonium remain, Plutonium contaminated soil on IRENE should be handled as on YVONNE. Pieces of Pu metal are not expected to be found. Test plantings of food crops may be conducted on each of the "no crops'' islands as designated by the Enewetak people. : As edible parts of these plants become available, concentrations of significant radionuclides should be measured and compared with the radiological survey predictions. These studies will indicate times at which planting of subsistence and commercial crops can be safely resumed, 10. Lens water sampling and analysis should be conducted, samples to be taken over a period of at least 12 calendar months. Bacterial content, salinity, and radionuclide content should be measured. Radioactivity information will contribute to an understanding of processes operating - or which can be made to operate - to reduce the ecological half-life of 99Sr and 137Cs below the radioactive half-life on the northern islands, especially JANET. 11. A comprehensive air sampling program should be conducted over a period of 12 consecutive months under conditions closely approximating human habitation and expected soil disturbance to provide information on radioactivity levels inair. This program could be conducted coincident with and support cleanup. le, Base-line surveys of body burdens and urine content of 137 Cs and ?9Sr should be made for the Enewetak people prior to return to Enewetak Atoll, and periodically thereafter. Re- surveys of the environmental radiation and radioactivity should be madein the first year of return and repeated, fr example, be amen Letangpeaee oe ohne sore se mapeenaep geeres earner Tor eerecipes pear waapg pee ve an ate ‘ a7 rn ee ' warns . oo t . ro hte at rats Ore Leg rygh ts ite Ph Ue ey * a SS PR sae oboe -t Te . ee,