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Table 4-3. Topsoil and spoil material analysis comparisons for plant growth <br />suitability at Trapper Mine (1985-1989), vs 1994 Ashmore pit spoils. <br />Topsoil Spoil 1994 Ashmore <br />Weighed x (1) Weighed x (2) pit x (3) <br />Parameter (4) <br />pH (standard units) 7.24 7.38 7.6 <br />Electrical Conductivity (mmhos/cm) 0.84 1.98 3.0 <br />Calcium Carbonate (%) 0.94 5.67 2.48 <br />Organic Matter (%) 3.80 4.08 10.00 <br />Nitrate 21.79 7.37 7.55 <br />Phosphorus 14.36 1.47 5.52 <br />Potassium 268.71 102.80 73.02 <br />Zinc 1.97 6.56 3.06 <br />Iron 36.69 32.02 19.94 <br />Manganese (Mn) 15.79 11.85 11.07 <br />Copper 2.88 4.80 2.01 <br />Selenium 0.017 0.09 0.07 <br />Calcium (meg/1 in sat ext.) 6.09 13.86 23.18 <br />Magnesittm (meg/l in sat ext.) 2.21 11.85 22.35 <br />Sodium (meg/1 in sat ext.) 0.48 2.06 3.36 <br />S.A.R. (---) 0.25 0.65 0.72 <br />`9 Saturation 42.64 42.46 38.4 <br />Texture Clayey loam Clayey loam Sandy loam <br />• <br />'9o Sand 33.55 33.38 61.18 <br />`9 Silt 34.64 30.71 21.09 <br />`Y Clay 31.79 35.94 17.73 <br />Mercury (mg/kg) 0.05 0.08 0.30 <br />Flourine O.14 0.40 5.56 <br />Total Sulfur 0.03 0.11 0.12 <br />Acid-Base Potential (-) +10.9 +52.43 +21.10 <br />Molybdenum .0.015 0.079 - <br />Boron 0.(0 0.35 - <br />K (meg/I in sat ext.) 0.62 0.50 - <br />(l) A, B, C, D and E pit topsoil 1985-1989. <br />(2) B, C, D and E pit overburden 1985-1989. <br />(3) A pit spoils sampled in 1994. <br />(4) ppm unless otherwise denoted. <br />LWH/jb 3/95 <br />[DMG\94REPT4] <br /> <br />Table 4-3 <br />