70 RADIOLOGICAL CLEANUP OF ENEWETAK ATOL| potential use of the item by the dri-Enewetak and took into account criteria established by the TTPI and DNA. This volume also containeg proposals for mobilization, base camp construction, cleanup, anq demobilization, using contractor forces. Cost estimates and cleanup work estimates were based on preliminary standards furnished by DNA for both radiological and nonradiological cleanup. The nonradiological criteria served as a basis for future plans and much of the actual cleanup. The radiological criteria were changed many times before that part of the cleanup could begin.32 fo) The Engineering Study described several options for disposition of contamination, none of which were adopted, but which continued to be proposed as alternatives in subsequent planning conferences. These included: . Covering contaminatedsoil with a blanket of clean soil. b. Dumping contaminated debris in the craters on Runit. c. Dumping contaminated debris and soil in the lagoon. d. Dumping contaminated debris and soil in the ocean. e. Shipping contaminated debris and soil to the continental United States (CONUS) for storage.33 VolumeII was an assembly of large maps of each of the islands. Each map showed the location of each structure, item of construction, junk pile, concrete strip, and test station, as well as stands of vegetation and other natural features. Also shown were such items of radiological interest as contaminated burial areas, contaminated scrap piles, and other radioactive debris. VolumeIII contained detailed and summary cost estimates. The total estimated cost (in 1972 dollars) for cleanup, including dumping contaminated debris in the Runit craters and spreading 62,000 cubic yards of clean soil on Enjebi, was $28.8 million using foreign contractor personnel and $18.4 million using military troops. Options added $1.4 million for ocean dumping of contaminated material or $4.3 million for its return to the United States.34 Before the Engineering Study data could be incorporated in an EIS, more information was required on DOI’s rebabilitation plans and AEC’s radiological cleanupcriteria. ENEWETAK RADIOLOGICAL SURVEY: OCTOBER 1972-OCTOBER 1973 On 13 September 1972, AEC-NV was directed to plan, organize, and conduct a radiological field survey to develop sufficient data on the total radiological environment of Enewetak Atoll to: (1) locate and identify eR . -