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i <br /> <br />• <br />ANALYSES FOR OVERBURDEN - HIGHWALL SAMPLE <br />Pit No. 9 <br />Calcium, Meg/L <br />Potassium, Meg/L <br />Cation Exchange Capacity, <br />Meg/1009 <br />Exchangeable Calcium, Meg/1009 <br />" Magnesium, Meg/1009 <br />" Sodium, Meg/1009 <br />" Potassium, Meg/1009 <br />Carbonate, Meg/L <br />Bicarbonate, Meg/L <br />Sulfate, Meg/L <br />Chloride, Meg/L <br />Nitrate, Meg/L <br />Texture Class <br />Sand <br />silt % <br />Clay <br />Selenium (Soluble), PPM <br />Total Selenium, PPM <br /> Sample Numbers and Depth <br />No. 1 Upper No. 2 Lower No. 3 No. 4 No. 5 No.6 Roof Rock <br />4"-6' 6'-10' 10'-20' 20'-30' 30'-60' 45'-50' of Coal <br /> <br />9.37 2.28 3.07 3.69 3.05 3.80 6.80 <br />1.02 0.78 0.67 0.70 0.60 0.74 1.32 <br />19.4 11.1 11.4 10.2 11.1 19.3 10.7 <br />4.7 4.4 2.9 3.2 2.0 2.4 3.8 <br />4.8 4.9 4.9 4.9 4.7 3.8 4.4 <br />0.8 0.3 0.3 0.4 0.2 0.4 0.2 <br />0.5 0.3 0.3 0.3 0.2 0.4 0.5 <br />0.00 0.00 0.00 0.00 0.00 0.00 0.00 <br />0.18 0.18 2.85 3.12 3.73 o.lt 0.71 <br />36.84 10.99 13.57 17.50 10.25 25.40 23.01 <br />0.08 0.03 0.03 0.03 0.02 0.02 0.05 <br />1.83 o.t5 0.48 0.49 0.53 0.35 0.85 <br />Carbolithic Sandy Sandy Sandy Sandy Loamy Sandy <br />- 56 58 55 60 47 61 <br />- 31 28 33 30 37 31 <br />- 13 14 t2 l0 6 8 <br />0.03 o.ot O.ot 0.02 0.06 0.06 O.Ot <br />t.0 3.1 4.2 2.9 2.8 3.2 2.7 <br />(1) Mineral Fractions Not applicable, <br />(2) Analyses represents overburden material on steepest part of the i~ighwall only, <br />