vF * reF 16 - ** 2 ALIQUOTS PER SAMPLE LOCATON SAMPLES ARE ADJACENT WITHIN EACH GROUP OF 4 145 WF 12 - 3 a wat § 2 3 + ALIQUOT 1 +> AVERAGE ° ALIQUOT 2 a4 £ < 1 ah 3f 2k ie oO Hl yle yyy yl yl yp yl i 0 150 300 450 600 760 1060 1200 1360 1800 1650 plitiyrl 1 pyle 4 800 41980 2100 DISTANCE (FEET) . Figure 15. . 241 . ' Average* Concentrations of Am (pCi/g dry) in 70 g Aliquots of Soil Along Line 2** in Area 13, Project 57. 40 x 10°12 30 x 10°12; ¥(h) 20 x 10712, 10 x 10°12 O 0 1 300 J 600 | 800 ! 1200 | 1500 I 1800 2100 DISTANCE (h) IN FEET BETWEEN SOIL SAMPLE CLUSTERS Figure 16. Estimated Raw Variogram of Line 2 241 Concentrations. 432