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ID-9 Mine Report <br />Geoscience Services <br />Table 3 provides sorption coefficients for the analytes of interest (units are cubic meters <br />per kilogram). Most of the analytes aze mobile but exhibit some degree of sorption in <br />sands and clays that aze typical of the geologic material in the area. <br />Table 3: Sorption Coefficients (Kd) for selected analytes based on relevant geologic <br />material (after Sheppard and Thibault,1990) <br />Analyte Sand (m /kg) Clay (m /kg) <br />Aluminum Not available Not available <br />Arsenic Not available Not available <br />Lead 0.27 0.55 <br />Selenium 0.15 0.74 <br />Uranium 0.035 0.60 <br />Zinc 0.20 0.40 <br />5.0 Results <br />Results of the contaminant transport modeling for the migration of uranium and <br />selenium are presented in Figures 2 and 3. The resulting contaminant plumes aze <br />overlain on the geologic cross section for the SM-18 mine area. The geology for JD-9 <br />mine is similar to the SM-18 mine with the notable exception of the shales and <br />9 <br />