(4) = FISSION PRODUCT X = SUBSURFACE INVESTIGATION | SAMPLING LOCATIONS DATUM IS MAXIMUM OBSERVEDTRU,pCi/g N1.25 — 120 130 x al x OLS _ 125M 180 oo Ni— 120 x 155 x NO.75 | 12.25 12 11.75 FIGURE 7-56. SUBSURFACE SAMPLING RESULTS, LOCATION 12N1, ISLAND IRENE |