Nineteen coconut samples were collected from thirteen different locations on the island. Green coconuts were used for almost all samples and the meat and milk were analyzed separately. detectable in any of the samples. Only 137Cs and 2°Sr were Tritium analyses were performed on the milk from selected coconuts but all results were below the lower limit of detection (0.4 pCi/ml). Table 1. Mean 137Cs and ?°Sr Concentration in Food and Bikini Island (pCi/g wet weight) Sample 1376 Coconut meat 1969 1967(2) 1969 Range 1376 30 sp 120 4 ~ 480 200 + 2.6 0.31 Coconut milk 130 48 - 270 Pandanus 130 26 - 400 Arrowroot 0.6+ 28 0.4 - 1.1+ 2.4 +Prepared by grinding, rinsing three times with salt water and once with fresh water. (Marshallese method of preparation) ENEU ISLAND The second largest island in the atoll, and the site of the base camp for the cleanup operation, Eneu, was found to be considerably lower than Bikini in external background ‘Figure 3). Although an exposure rate of 50 uR/hr was obtained at one depressed location during the early stages. filling of this "borrow pit" area reduced the level to approximately 10 uR/hr. than 10 to 20 pR/hr. The exposure rate generally ranged from less Of particular interest was an aircraft decontamination pad adjacent to the parking apron of the airstrip which bisects the island. Surveys of this area showed background levels to be less than 20 uR/hr for all exterior surfaces. The interior of the drain measured approximately 50 uR/hr. Thirteen cable spools, giving a combined contact reading of 200 uR/hr, represented the only radioactive scrap located on the island. were removed and disposed of at sea. These