7.4.10 Sally's Child
Background
Sally's Child is a heavily vegetated islet with an area of 0.8 hectares located on the reef east of
Sally. The island has no known Marshallese name and was not used during the testing operations for
scientific purposes. There were no debris, no ground zero sites, and no burials on Sally's Child. No
data are available on the amount of exposure this island received as a result of nearby nuclear events,
1972 Survey Results
During the 1972 survey, soil samples were collected at six locations on Sally's Child; two of the
locations were profile sampled and the other four had gals em. core samples. The profile results
generally indicated the distribution of activities for 1 Cs, 30sr and 299:240py to be declining
steadily with increasing depth.
The exception to this was one
Osp profile which showed activity
dropping initially down to 3 cm, increasing steadily to 20 em and then decreasing again.
The 0-15 em data for 137cs, 90Sr and 239,240py are summarized in Tables 7-1, 7-2 and 7-3,
respectively, for the 1972 sampling.
Characterization and Fission Product Sampling
Sally's Child did not have any IMP measurements taken due to its small size, but soil samples were
collected at six locations. Each location was sampled at the surface with four composites for a total
of 24 samples (see Section 4.2.1 for details on the soil sampling procedure.) No ratio of TRU to
241
Am was computed because there were no IMP data.
The results and the locations of the soil
sampling on Sally's Child are shown in Figure 7-40. Summaryresults of the TRU activity are shown
in Table 7-4, The maximum TRU activity of any soil sample was 33.4 pCi/g (see Tech Note 2.20).
Sally's Child was sampled at four sites for the Fission Product Data Base Program in support of the
dose assessment (see Section 6.11). Soil from all four locations was analyzed for 99sr. Tables 7-1,
7-2 and 7-3 summarize the 0-15 em data for 187%cs, 99Sp ang 239,24 Pu, respectively, for this
sampling.
The island average transuranics value reported in the Certification is 21 pCi/gm for surface soil, and
the transuranics classification is Residence.
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FIGURE 7-40. COASTLINE AND DATA COLLECTION
LOCATIONS FOR ISLAND SALLY'S CHILD
250