241 am inCi/g DRY SOI} 0.9 0.8 0.7 0.6 0.6 i 14 1.0 SAMPLES ARE ADJACENT WITHIN EACH GROUP OF 4 TTT 1.2 ut ALIQUOT 1 ~—mAVERAGE ALIQUOT 2 0.4 elo 0.3 0.2 014 9 btiy 0 40 20 60 80 A 100 120 140 160 #) 180 200 zine 220 240 260 OISTANCE (FEET) Figure 9. Concentrations of 241am (nCi/g dry) in 70-g Aliquots of Soil Along Line 1 in Area 13, Project 57. 0 0 1 40 tL 80 1 | 4 _t 120 160 200 240 __1 280 DISTANCE (h) IN FEET BETWEEN SOIL SAMPLE CLUSTERS Figure 10. g st imated Raw Variogram of Line 1 4lam Concentrations. 428 ~ 280