Table 6. 239-240 Pu Concentrations (nCi/g) in "Ball~-Mill" and "Less Than 100~Mesh" Soil Fractions for Surface Soil Samples From Stratum 2 of Area 13; Analyzed by LASL 77T Less Than 100-Mesh Library No. Stake No. L00986 10 L00987 15 L00988 16 LOO989 18 L00990 21 L00991 23 L00992 25 L00993 27 100994 33 L00995 35 . Ball-Mill Fraction Percent 239 2405 Count ing Error 0.000932 0.00626 0.0113 0.0377 0.0141 0.0397 2.05 1.10 0.581 0.739 0.144 0.617 0.134 0.174 0.132 0,246 4.4 4.0 4.0 4.6 4.0 0.6 1.6 1.3 2.8. 1.9 1.7 1.7 2,0 1.7 1.8 2.3 0.048 0.0253 0.116 0.286 0.295 0.0316 0.141 0.199 0.0283 0.0455 0.0919 0.0635 0.0116 0.145 Percent Mean (A) of 239-240, Count ing Error 0.00616 0.84 0.0305 0.47 0.00304 0.00757 0.00208 0.0334 0.0297 3.7 3.4 3.9 3.8 3.9 1.12 0.59 0.202 0.274 0.421 | 0.298 0.93 0.184 0.31 3.9 4.4 1.9 1.7 1.7 0.0607 0.80 0.290 0.02 2.2 1.8 2.4 2,2 2.1 2.9 1.8 3.0 2.0 0.124 0.69 0.0552 0.60 0.0734 0.92 0.140 0.0730 0.205 0.141 0.189 0.193 0.0730 0.00865 0.0105 0.0112 0.113 0.0613 0.170 0.0437 0.0811 0.0358 0.0208 0.00896 0.0514 0.0394 0.0137 0.0151 te = coefficient of variation = s/mean, where s standard derivation of n observations Mean (B) of A/B 0.00423 0.69 1.5 0.0316 0.083 0.96 1.6 1.5 2.6 0.299 6.37 3.8 1.7 1.6 1.8 1.4 1.6 1.7 3.0 3.2 3.8 1.2 1.6 1.7 1.9 1.7 1.8 2.2 2.3 3.1 1.8 2.1 3.1 2.9 0.139 0.47 2.1 0.149 0.38 1.2 0.0101 0.13 6.0 0.115 0.47 2.5 0.0535 0.45 2.3 0.0271 0.81 2.0 0.0227 0.64 3.2