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Table 2-04-70)-5 . Roof and floor sample analysis from borehole TP-W1, <br />Twin Pines No. 2 Mine <br />a Designation Sponsor Designation TPW-1 - ~TPW-1- - <br />175-185 193-200 <br />Roof Floor <br />Determination <br />Particle Size Distribution: <br />Sand, % 42 52 <br />Silt, % 38 32 <br />Clay, %. 20 16 <br />Combustible Solids, % at 750°C 6.8 12 <br />Forms of Sulfur: <br />Sulfate Sulfur, % <0.01 <0.01 <br />Pyritic Sulfur, % 0.03 0.08 <br />Organic Sulfur, % 0.02 0.09 <br />Total Sulfur, % 0.05 0.17 <br />Boron. ppb 190 220 <br />Molybdenum. (NH4)20204 ppb 20 10 <br />Nitrate Nitrogen, ppm 5 2 <br />Selenium, ppb 100 110 <br />pli - Paste 9.4 8.2 <br />Conductivity, wnhos/cm 1100 1600 <br />Major Ions - Saturated Paste: <br />Carbonate, mg/L (1 3 <br />Bicarbonate, mg/L 140 340 <br />Calcium, mg/L 9.6 12 <br />Magnesium, mg/L 0.97 1.7 <br />Potassium, mg/L 6.3 8.2 <br />Sodium. mg/L 230 320 <br />Sulfate, mg/L 300 430 <br />Chloride, mg/L 30 31 <br />Total Dissolved Solids, mg/L 800 1100 <br />SAR 19 23 <br />Arsenic, ppb 10 10 <br />Barium, ppb (1000 <1000 <br />Chromium, ppb (100 <100 <br />Fluoride, ppb 17000 5100 <br />Mercury, ppb 90 120 <br />Silver. ppb <20 <20 <br />DTPA Extractable Metals: <br />Cadmium, ppb 58 58 <br />Copper. ppb 6000 2900 <br />Iron. ppb 95000 40000 <br />Lead, ppb 28000 11000 <br />Manganese, ppb 3000 5200 <br />Molybdenum, ppb 170 110 <br />Nickel, ppb 1000 980 <br />Zinc, ppb 23000 5600 <br />JFSA-41