GJX -= Fission PRODUCT \ SAMPLING LOCATIONS SUBSURFACE INVESTIGATION DATUM IS MAXIMUM OBSERVED TRU, eCi/g 85-4 37 x 140 x 171 @ a— 140 136 x 12.5M —— ——-I 4 85 72 E2 £25 t E1.5 ' 249 x 76 i> Nj f FIGURE 7-21. SUBSURFACE SAMPLING RESULTS, LOCATION 8E£2, ISLAND DAISY Final Characterization Figure 7-22 shows isopleths on the surface TRU activity on eRbased on final IMP 24! Am data. Table 7-5 summarizes the island means for TRU, 27Cs and ®%Co data from IMP measurements. The island average transuranics value reported in the Certification is 43 pCi/gm for surface soil, and the transuranics classification is Agricultural. 7.3.5 Edna Background Island Edna (Marshallese: Bokinwotme), a small, sandy island only 4.0 hectares (ha) in area with a small amount of vegetation, is located on the western edge of the Mike event crater. The island shape tends to be altered in every major storm by wind and wave action on the sandy soil. There were no test structures on Edna, nor were there any contaminated scrap, suspected burial areas or ground zero sites. However, because of its proximity to several large nuclear events, Edna ranks third among islands of the Atoll in total H + 1 hour exposure rate, with 9,533 R/h. 228