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Appendix I - Overburden Characteristics - Section 4.0 Analytic Comparisons Between Regraded Spoils <br />and Adjacent Overburden Drill Holes at Trapper Mine, 1985 - 1987. <br />Table 2.7-8a Overburden Laboratory Analyses and Methods for the PR -7 Mine <br />Expansion Area <br />Parameter <br />Laboratory Method <br />Units <br />Boron, soluble (Hot Water) <br />M6010B ICP <br />mg/kg <br />Iron, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Lead, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Manganese, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Molybdenum, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Selenium, soluble (Hot Water) <br />M6020 ICP -MS <br />mg/kg <br />Zinc, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Arsenic, extractable (AB -DTPA) <br />M6010B ICP <br />mg/kg <br />Mercury by Direct Combustion AA <br />M7473 <br />ng/g <br />Calcium, soluble (Sat. Paste) <br />M6010B ICP <br />meq/L <br />Magnesium, soluble (Sat. Paste) <br />M6010B ICP <br />meq/L <br />Sodium, soluble (Sat. Paste) <br />M6010B ICP <br />meq/L <br />Sodium Adsorption Ratio <br />Calculation <br />Carbon, total organic (TOC) <br />ASA No.9 29-2.2.4 <br />% <br />Sand <br />ASTM D 422 Hydrometer <br />% <br />Silt <br />ASTM D 422 Hydrometer <br />% <br />Clay <br />ASTM D 422 Hydrometer <br />% <br />Texture Classification <br />USDA <br />Conductivity @25C <br />SM2510B <br />mmhos/cm <br />pH, Saturated Paste <br />EPA 600/2-78-054 <br />units <br />Saturation Percent <br />USDA No. 60 (2) <br />% <br />Solids, Percent <br />D2216-80 <br />% <br />Sulfur HCl Residue <br />M600/2-78-054 3.2.4 <br />% <br />Sulfur HNO3 Residue <br />M600/2-78-054 3.2.4 <br />% <br />Sulfur Organic Residual <br />M600/2-78-054 3.2.4 <br />% <br />Sulfur Pyritic Sulfide <br />M600/2-78-054 3.2.4 <br />% <br />Sulfur Sulfate <br />M600/2-78-054 3.2.4 <br />% <br />Sulfur Total <br />M600/2-78-054 3.2.4 <br />% <br />Total Sulfur minus Sulfate <br />M600/2-78-054 3.2.4 <br />% <br />Nitrate/Nitrite as N, extractable (KCL) <br />M353.2 - Automated C <br />mg/kg <br />2-391 b <br />.`esvISIOICI: A iG Cy <br />Approved <br />