Status of the Bikini Radiological Clean-Up Program

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STATUS OF THE BIKINI RADIOLOGICAL CLEAN-UP PROGRAM The following outline briefly summarizes clean-up program on an individual island the status of the Bikini radiological Each island or islet has been, or will be , monitored for radioactive scrap and for determination of residual gross gamma background rad~ation levels. All radioactive scrap has been or will be disposed of according to the cleanup guidelines. Items 1 through 20 below summarize the above situation as of 7 August 1969. Figure1 is a map of the atoll and may be used as a position 1. Near Able (Bokbata) on Range 5-10 uR/hr. One small the reef. closure door on bunker and a couple of large pieces of metal in water were radioactive to scrap ranged from 10-40 uR/hr. Range 5-15 uR/hr. No radioactive Range 5-25 uR/hr. No radioactive underway. Several items of radioactive scrap to 150 uR/hr will be disposed of at sea. (Iroij-Odrik-Lomilik- Radioactive scrap measuring to Aomen ) 500 uR/hr has been identified with paint in preparation for except for a few minor items was completed as of August 1.

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islet between Bikini Not yet surveyed. Same as Jig Same as Jig Same as Jig active scrap was found. active scrap on islands. Some on reef near causeway was removed for disposal at sea. radioactive scrap should be complete by August 7. should have been accomplished as To Be Done To Be Done To Be Done fl~ To Be Done 10-150 uR/hr. No contaminated Complete 5-50 uR/hr. No radioactive Complete Range 5-30 uR/hr. No radioactive Complete Structure #1. A few structures, Complete awash at high tide, ranging from were less than 10 uR/hr.

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Figures 3 through 8 are detailed maps of the gamma background variations on all significant land areas of the atoll except Eneu (Figure 2) and the Dog-Easy-Fox-GeorgeComplex (Item 5) where these surveys are currently being completed. In all areas where elevated gamma background levels have been detected, soil samples were collected for determination of specific isotope concentration, These samples are currently being analyzed. As of August 7th the food sample collection program is essentially complete. USPHS personnel have collected samples of all available plant foods on the e’ islands and University of Washington personnel have obtained samples of all available animal foods on the land surfaces as well as selected samples of sea foods in the lagoon. Information obtained from these samples, about radiation levels in foods, will be used for guidance to the Trust Territories Officials, but will have no affect on clean-up certification procedures.

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SURVEY OF JUNE 28,1969 No contamination or induced activity detected on structures