,MJ-U** .“, .- -* It also assumed responsibility for monitoring the radioactive ty in the environment subsequent to rehabilitation. “ These matters are vitally . important because only through follow-up monitoring can developing potentially hazardous radiological situations be detected. There is, however, no official agreement between the United States and the people of Enewetak regarding these matters. Such an agreement could avert WOU1 potential future conflict regarding such surveys and monitoring and d provide more assurance that any developing potentially hazardous radiological problem would be detected early and dealt with quickly ● Need to monitor and inspect entombed radioactively contaminated soil and debris The radioactively contaminated soil excised at”Enewetak Atoll for disposal is entombed on the atoll in a crater on Runit Island which is expected to be quarantined indefinitely, forma The soil is m~xed with cement and water to soil-cement slurry which is then placed in the crater. Radioactive An 18-i”nch thick concrete cap will “debris will also be dumped into the crater. be placed over the entire mass for erosion resistance and as a.shield from alpha radiation. Some migration of plutonium-particles to the surrounding environment could occur since this method of entombing, or containing, the contaminated material is not required nor intended to be leak-proof. . migration is not expected to pose a significant hazard. Any such This method Gf con- tainment w“ll require periodic monitoring and inspection to ensure its integrity, but no organization has assumed such responsibility. . . . “