ITERATION 3 ee 18,856 18,000 16,000 14,000 12,000 10,000 uUCi/m2 8,000 6,000 OUTER FENCE INNER FENCE 4,000 2,000 0.0 —1786 Figure 10. Estimated 239°240py Concentration Surface at the Area 13, Project 57 Site After 3 Iterations (Untransformed Data). 336