as Chairman Schlesinger Commissioner Ramey 4 7 Commissioner Larson Commissioner Dout Commissioner Ray THRU: . , Ceneral Manager ENIWETOK RADIOLOGICAL SURVEY This memorandum provides t{nformation regarding current activities on Eniwetok Atell. These activities concern the surveys essential to the Cleanup, rehabilitation, and resettlement of the atoll in connection with the announced return of Eniwetok to the Trust Territory of the Pacific Islands (TT?! In April 1947 the United Nations fofmally designated the former Japanese Pacific Mandates (Eniwetok ineluded) as Trust Territories to be administered by the United States. | written aotification to the U.H., Eniwetok was designated a nuciedgr testing site in December 1947, with the first test series there - SANDSTONE - being conducted in the spring of 1948. Prior to SANDSTONE, the Eniwetok people, about 136 in number, were moved by the United Stetes to Ujelang Atoll where they still reside, although their mumbers have now increased tc about 432. Additional test series vere conducted in atoll during the years 1952 (GREENROUSE), 1952 (IVY), 1954 (CASTLE), 1956 (REDWINT), and 1958 (HARDTACK - PHASE I). The last of 43 tests was in July 1958. ali testa have been listed publicly. Geographic location of the etoll is shown in Figure 1. Its reaoteness correctly suggests inherently costly operations to accomplish the necessary surveys afd subsequent cleanup. Figure 2 identifies the talands of the atall and general location of the neclear tests conducted. On April 18, 1972, BRigh Commiasfoner Joonston and Ambassador Willias jointly announced the intentiow of the United States to return Eniwetok Atoll to the TTPI subject to retention of sowe minor residual rights. Subsequently, the Department of Iorerior (DOI), Department of Defense (DOD), and AEC determined that a comprehensive and coordinated program to survey and clean up Eniwetok Atoll must be undertaken to make Enivetok habitable. The program was divided {nto three phases: (1) Pre-cleanup Radiologital end tngineering Survey. “** Cleanup, and (3) Rehabilitation eget atm Senge meta eneie nhaap eeeneceees SURNAME pb ce Le ee ee emereee: DATED Re 9 Form AEC-318 83 >:, AEC M Onn is OFFICE , , sot A