7.4.8 Pearl's Daughter Pearl's Daughter, a small islet about 0.5 hectare in area with sparse vegetation, is located on the reef east of Pearl. The island has no known Marshallese name and was not sampled during the 1972 survey. The surface of the island is covered with large black chunks of coral. No data are available on the amount of exposure received by Pearl's Daughter as a result of nearby nuclear events. There were no ground zero sites, no debris and no burial areas known or suspected on this island. No IMP measurements were taken on Pearl's Daughter because of its small size, but soil samples were collected. Three locations were sampled on the surface with four composites at each location for a total of 12 samples (see Section 4.2.1 for details on the soil sampling procedure). The results and locations of the soil sampling area shown in Figure 7-37. Table 7-4 summarizes the results. The maximum TRU aetivity for any soil sample was 165.2 pCi/g and the highest average TRU soration for any location was 142.1 pCi/g, so Pearl's Daughter met Condition A (see Tech Note 2.17). Sou samples were collected at two locations on Pearl's Daughter for the Fission Product Data Base Program in support of the dose assessment (see Section 6.11). Soil from one location was analyzed for ¥9Sr. Tables i-1, 7-2 and 7-3 give summary statisitics on the 0-15 em data for 137s, 90Sp, and 239,240 py, respectively, for this sampling. The island average transuranics value reported in the Certification is 123 pCi/gm for surface soil, and the transuranics classification is Food Gathering. N OCEAN f¢ APPROXIMATE HIGH TIDE LINE, 1972 e SOIL SAMPLE LOCATION; DATUM |S MEAN TRU IN pCi/g LAGOON 4 NN Qo PEARL'S DAUGHTER b= 25m FIGURE 7-37. COASTLINE AND DATA COLLECTION LOCATIONS FOR ISLAND PEARL'S DAUGHTER 247