TABLE B-9-3. SOIL CONCENTRATION OF 241 Am (pCi/g) BASED ON IMP SCREENING -- POST-PLOW SOIL PROFILES Sample Depth (em) Sample Location (NW) 0.75-14 1-13.75 1-14.25 1.25-14 1.75-13.75 1.75-14.25 2.25-13.75 2.25-14.25 0.75-15.75 0.75-16.25 1.25-15.75 1.25-16.25 1.75-16 2-15.75 2-16.25 2.25-16 0-5 5-10 10-15 15-20 1.1 0.6 0 2.5 9.0 0.6 0.1 0 0.9 1.8 0.1 1.7 2.6 0.7 0.4 0.7 0.5 0.9 0 0 13.1 1.2 0.1 0.5 0.6 0.6 0 0 3.8 0.5 0 0.8 5.4 0.7 0.9 0.4 14.7 0 2.7 0 0.2 0 0.4 0.2 0 0 0 0.5 0 0.5 0 0 1.9 0.8 0 0 0 0 0 2.6 1.7 1.9 0.8 0.3 30 40 50 0.7 0.2 0 0 1.2 12.0 0 1.7 7.2 0.1 0.3 0.3 1.1 15.0 Q.1 0.6 0.3 4.8 0.3 0.2 0 1.4 0 1.3 0.9 0 1.5 0.5 1.4 0 0.3 0.2 1.0 3.2 0.8 0 0.2 0.1 0.5 0.3 1.1 0 4.8 0.8 9.0 0.3 0 0 Comparison of these profile values with those in Table B-9-2 reveals an obvious change in radionuclide distribution. This change is examined in greater detail by statistical analysis. TABLE B-9-4. ANALYSIS OF VARIANCE, TRU (FROM IMP) BEFORE AND AFTER PLOWING Degrees of Sum of Total 7 7712.115 Bloeks 3 345.405 Treatments ] 6635.52 6635.52 Residual 3 731.19 243.73 Freedom wares B-9-23 Mean Square F oa Source 115.135 27.22