4 Table 4. Alpha Emitting Nuclides in Soil - Eneman (pCi/g air-dried weight) Nuclide 100 uR/hr area | 500 uR/hr area 239, 240, 27 410 238,,, 11 220 241, 2 40 UNCLE (ENIDRIK) The istand of Enidrik is located west of Eneman on the southern rim of the atoll (Figure 8). The northwest end of the island is heavily vegetated and showed background radiation levels of 100 to 300 uR/hr over most of the area. The central portion of the island consists of coral rubble overgrown by ipomoea vines and the background radiation levels are generally 10 uR/hr or less. Progressing toward the narrow eastern end of the island the vegetative cover remains thin. devoid of vegetation dominate this end. Two large sandy areas, Background levels remain at 10 uR/hr or less over the great majority of the eastern end. No coconut trees were found on the island. A few scattered mature pandanus were seen, and one small grove of immature pandanus was located on the western end. One arrowroot sample was taken at this last location where the background was 250 uR/hr. The /27Cs concentra- tion in the arrowroot was 0.2 pCi/g (wet weight) after processing as previous ly described. A soil sample taken in a 300 uR/hr area showed !92"Rh, 137Cs, and ®°Co to be the major gamna enitting contaminants (78%, 14%, and 8% respectively by concentration). Only a few pieces of radioactive debris were found and these were renoved for burial at sea. 7