370 RADIOLOGICAL CLEANUP OF ENEWETAK ATOLL pCi/g. In these two cases, debris would be removed without sheet pile containment. The following steps comprised the operational concept: Remove debris or suspected debris from the noncontaminated sojj a. areas first. Soil removed would be analyzed by DOE-ERSP. If sojj contamination was less than 400 pCi/g, it was to be usedto fill the hole after the debris was removed. If the contamination exceeded the criteria, it was to be stockpiled for transportation to Runit. The completed excavation wasto befilled with clean beach sand. . All soil determined by DOE-ERSP to exceed 400 pCi/g wasto be removed and taken to Runit. Since the heart of the area contained both debris and contaminatedsoil, it was to be stockpiled separately, Due to the depth of this contaminated soil, sheet pile containment was necessary. By careful analysis and close supervision, much of the debris wasto be removed without disturbing the earth to eliminate the possibility of lateral movement of suspended transuranics into noncontaminated areas. . Upon completion of excavation, the remaining soil in the enclosure was to be sampled by DOE-ERSP to ensure that the soil met the establishedcriteria. . The isolation area would then be backfilled with clean soil. The cleanliness of the backfill soil was to be verified by DOE-ERSP. Upon completion of all backfill operations, DOE-ERSP was to resurvey the entire crypt area, surface and subsurface, to assure that established criteria had been achieved. Because of the complexity of the operation and the need for specialized equipment not available to the USAE, the J3, HQ JTG assumed responsibility for the Aomon Crypt cleanup. All JTG elements and agencies would provide personnel and equipment as required and available. The composition of the Aomon Crypt work forces varied from day to day. The responsibilities assigned to individual elements and agencies were as follows: a. HQ JTG (augmented by Captain Ronald Penn, of the USAE, who acted as Project Officer): (1) (2) : q wae 1 Provide overall command andcontrol. Direct personnel and equipment requirements from elements and agencies. b. USAE: (1) Provide survey support. (2) Move contaminated soil and debris. (3) Provide LARC-LX toa eee ment USNEwater craft. y