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• Table 5.5 Results of Batch Leach Atteuuatiou Tests Using Soil Materials and Fluids From the Bulldog Tailings Impouudmeuts, Creede, Colorado. Starting Fluid Chemistry pH EC (uS/Cm) Mn (mg/L) Pb (mg/L) Sb (mg/L) SOQ (mg/L) Chemical Analysis 7.74 1776 4.43 0.045 0.066 983 Upper Pond Sediment/Soil Sample-l-Ol pH EC (uS/Cm) Mu (mg/L) Pb (mg/L) Sb (mg/L) SO., (mg/L) Leachate Chemistry Percent Removal 7.41 NA 1345 NA 0.106 97.6 0.011 75.6 0.016 75.8 935 4.88 Ka (mL/g) NA NA 81.6 6.2 6.3 0.10 Upper Pond SedimenUSoil Sample-1-02 pH EC (uS/Cm) Mn (mg/L) Pb (mg/L) Sb (mg/L) SOa (mg/L) Leachate Chemistry Perceut Removal 7.57 NA 1373 NA 0.037 99.2 <0.001 97.8 0.016 75.8 910 7.4 I{a (mL/g) NA NA 237.5 >88 Upper Pond Sedimeut/Soil Sample-2 • 6.3 0.16 pH EC (uS/Cm) Mu (mg/L) Pb (mg/L) Sb (mg/L) SOa (mg/L) Leachate Chemistry Percent Removal 7.65 NA 1445 NA 0.012 99.7 0.001 97.8 0.018 72.7 942 4.Z Ka (mL/g) NA NA 736 88 Lower Pond Sediment Sample-1 u 5.3 0.09 pH EC (uS/Cm) Mn (mg/L) Pb (mg/L) Sb (mg/L) SOS (mg/L) Leacbate Chemistry Percent Removal 7.99 NA 1405 NA <0.002 100 <0.001 97.8 0.008 87.9 970 1.3 Kb (mL/g) NA NA >4428 >88 14.5 0.03 Lower Pond Soil Sample-2 pH EC (uS/Cm) Mu (mg/L) Pb (mg/L) Sb (mg/L.) SO,, (mg/L) Leachate Chemistry Perceut Removal 7.83 NA 1450 NA 0.012 99.7 <0.001 97.8 0.035 47.0 959 2.4 Ka (mL/g) NA NA 736.3 >88 I.8 0.05 Experimental Rinsate (Starting Fluid in Erlenmeyer Flask Without Soil Material) pH EC (uS/Cm) Mn (mg/L) Pb (mg/L) Sb (mg/L) SO{ (mg/L) Leachate Chemistry Percent Removal 7.93 NA 1506 NA 3.92 11.5 0.024 46.7 0.074 -12.1 985 -0.2 k:Uceith\17-314\tab5 S.xls