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• • <br />Appendix 6-4, Table 4 <br />Chemical and Physical Properties for Underburden Material <br />From the 1980 and 1981 Core Hales, <br />Seneca II Mine, Routt County, Colorado <br />November 1981. <br />Parameter) 2034E 2096E 2307E 2334E 2364E 2377E 2424E 2438E 2613E 2614E Mean <br />Cotton Exchange Capacity, meq/100 g --- --- 7.0 11.4 6.8 11.4 9.8 13.4 --- --- 10.0 <br />Sand Fraction, X 49 49 54 47 37 37 49 44 43 60 46.9 <br />Silt Fraction, X 29 33 28 33 41 48 33 34 37 25 34.1 <br />Clay Fraction, X 22 18 18 20 22 15 18 22 20 15 19.0 <br />Saturation Level, X 44.9 45.7 43.8 46.1 39.4 45.1 48.8 40.1 38.4 32.2 42.4 <br />pH, paste 7.6 7.2 6.4 7.7 6.8 7.0 6.9 1.3 1.6 8.8 7.3 <br />pN, paste extract 7.9 7.5 6.9 8.0 7.9 1.8 7.5 8.0 7.8 8.6 7.8 <br />Conductivity, nndtos/cm O.B 1.4 2.3 1.5 1.3 1.0 2.6 1.1 0.7 1.2 1.4 <br />Sodium-Soluble, meq/1 1.3 1.0 13.2 9.0 3.5 2.6 12.0 9.9 1.8 10.6 6.5 <br />Sodium-Exchangeable, ppm --- --- 339.0 253.7 39.4 113.4 294.4 299.5 --- 613.0 325.4 <br />o+ Calcium (Soluble), meq/1 3.2 9.6 8.3 <5.7 9.5 5.5 11.3 2.8 2.5 0.1 <5.8 <br />,~.. Magnesium (Soluble), meq/1 2.8 8.0 7.1 <3.3 6.3 3.4 7.6 1.7 1.6 0.1 <4.2 <br />~ Sodium Adsorption R <br />tio 0.8 0.4 9.6 14.7 1.2 1.2 6.2 6.6 1.4 33.5 7.6 <br />~ <br />4' Acid-Base Potential 53.8 40.4 35.4 8.6 5.7 9.8 -3.7 33.8 59.2 48.2 29.9 <br />Molybdenum, ppm <0.6 <0.6 <0.6 <0.7 <0.6 <0.6 <0.8 <0.6 <0.7 0.6 <0.6 <br />Boron, ppm 0.2 0.4 1.0 0.6 0.2 0.4 0.5 0.4 0.2 0.2 0.4 . <br />Selenium, ppm <0.05 <0.06 0.04 0.04 0.05 0.07 <0.03 0.02 0.05 0.06 <0.05 <br />Mercury, pph 13 <10 <14 <10 <12 <11 <10 <10 <13 11 <12 <br />Cadmium, DPm 0.05 '0.06 <0.07 <0.07 0.10 <0.10 <0.07 <0.07 <0.05 <0.05 <0.07 <br />Copper, ppm 0.9 2.0 1.7 1.3 1.1 1.1 1.3 1.8 0.8 O.B 1.3 <br />Iron, ppm 63.7 126.2 132.5 110.1 53.5 69.5 162.7 138.7 68.6 68.2 99.4 <br />Lead, ppm 3.3 <3.7 <2.6 <4.1 1.5 2.4 <3.0 <2.9 2.9 3.6 <3.0 <br />Manganese, ppm <2.2 <7.2 <5.6 7.8 3.6 5.2 6.8 <4.5 <2.6 3.9 <4.9 <br />Nickel, ppm 2.4 <2.4 <2.4 <2.6 2.2 2.1 2.4 2.4 1.9 2.0 <2.3 <br />Zinc, ppm 3.5 6.2 10.1 5.6 8.5 9.2 5.B 6.0 3.9 3.4 6.2 <br />Nitrate Nitrogen, ppm 25.5 <2.3 <3.1 <5.9 <3.0 <3.0 <33.1 <3.0 8.5 46.5 <13.4 <br />Potassium -Exchangeable, ppm 152.8 137.8 105.4 175.8 111.3 165.0 129.8 165.8 125.1 154.6 142.3 <br />Potassium - Soluble, meq/1 0.6 <0.8 0.3 <0.6 0.1 0.7 1.0 0.5 0.6 0.3 <0.6 <br />Phosphorous, ppm 0.6 <0.7 <1.5 <0.9 0.7 0.3 1.8 <0.2 <0.4 0.6 <0.7 <br />Chromium, ppm <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <br />Barium, ppm 1.9 <1.2 <3.7 <4.8 <1.2 <1.0 <1.0 <1.2 <4.3 13.0 <3.3 <br />Arsenic, ppm 0.84 0.25 <0.28 0.25 0.51 0.14 0.27 0.10 0.67 0.14 <0.34 <br />Fluoride, pDm 0.6 0.7 2.1 1.2 0.4 0.6 <0.7 0.9 1.6 5.4 <1.4 <br />~ Appendix 6-4, Table 4 continued on next page. <br />0 <br />N <br />w <br />m <br />m <br />