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Table I-7. List of spoil parameters and suitability criteria at Trapper Mine. <br />Spoil Sample Parameters <br />pN <br />Electro Conductvity (EC) <br />Organic Matter (OM) <br />Phosphorus (P) <br />Iron (Fe) <br />Manganese (Mn) <br />Copper (Cu) DTPA) <br />Selenium (Se) (DTPA) <br />Calcium (Ca) ~ <br />Magnesium (Mg) Used to eval. EC S SAR <br />Sodium (Na) ~ <br />Sodium Absorption Ratio (SAR) <br />Mercury (Hg) <br />Total Sulfur (1) <br />Calcium Carbonate (CaC03) <br />Acid-Base Potential <br />Flourine (F) <br />Soil Texture (% Sand, Silt, Clay)(2) <br />Suitability Range <br />5.5-8.8 <br />< 12 mmhos/cm <br />NA <br />NA <br />NA <br />< 60 ppm <br />< 40 ppm <br />< 1 ppm <br />NA <br />NA <br />NA <br />< 12 <br />< .5 <br />NA <br />< 30% <br /><-5 tons CaC03 equiv/1000 <br />tons material <br />< 30 ppm <br />SAR; % saturation <br />dependent <br />(1) Total sulfur would be a worst case sample parameter. If total sulfur analy- <br />sis is relatively high and CaC03 equivalent low the results would indicate <br />a negative acid base potential. If a large negative acid-base potential is <br />the resulC then additional sampling to include Pyritic Sulfur and S04-S <br />will be run for that sample. <br />(2) SAR < 12+ Percent Saturation < 80, > 40% clay. <br />SAR > 10+ Percent Saturation > 80, < 35% clay. <br />N <br />