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TABLE 6-7C <br />WOLF CREEK LOWER OVERBURDEN <br />ANALYTE MEASUREMENT <br />UNITS NO. OF <br />SAMPLES MINIMUM MAXIMUM AVERAGE <br />Acid Generation Potential Icalcl t CaC03/Kt 5 11 28 17 <br />Acid Neutralization Potential t CaCO3/Kt 5 35 243 100.6 <br />Acid-Base Potential Icalcl t CaC03/Kt 5 11 232 83.2 <br />Aluminum, extractable (AB-DTPAI mg/Kg 5 <2 <2 2 <br />Arsenic, extractable IAB-DTPA) mg/Kg 5 <0.1 0.5 0.28 <br />Boron, soluble (Hot Waterl mg/Kg 5 0.21 0.88 0.436 <br />Cadmium, extractable IAB-DTPAI mg/Kg 5 <0.3 0.2 0.22 <br />Calcium, soluble ISat. Pastel meq/L 5 1.57 6.65 4.384 <br />Cation Exchange Capacity ICECI meq/100g 5 0.8 5.57 2.606 <br />Chromium, extractable IAB-DTPA) mg/Kg 5 <0.5 <0.5 0.5 <br />Conductivity @25C mmhos/cm 5 1.16 2.58 1.72 <br />Copper, extractable IAB-DTPAI mg/Kg 5 3.1 6.4 4.5 <br />Fluoride, soluble (Water) mg/Kg 5 0.7 1.8 0.94 <br />Iron, extractable IAB-DTPAI mg/Kg 5 186 330 255.8 <br />Lead, extractable (AB-DTPAI mg/Kg 5 11 513 134.8 <br />Magnesium, soluble ISat. Pastel meq/L 5 1.23 6.99 4.356 <br />Manganese, extractable IAB-DTPA) mg/Kg 5 8.6 20.6 13.78 <br />Mercury, total mg/Kg 5 0.06 0.26 0.176 <br />Molybdenum, extractable (AB-DTPA) mg/Kg 5 <0.5 <0.5 0.5 <br />Neutralization Potential as CaC0a1 °~ 5 3.5 24.3 10.06 <br />Nickel, extractable IAB-DTPA) mg/Kg 5 3.1 5.6 4.2 <br />Nitrate/Nitrite as N, extractable mg/Kg 5 2.1 4.7 3.28 <br />Organic Matter % 5 1.52 2.57 1.826 <br />pH, Saturated Paste units 5 7.5 8 7.72 <br />Phosphorus, extractable IAB-DTPA) mg/Kg 5 <1 <1 1 <br />Potassium, soluble ISat. Pastel meq/L 5 0.08 0.26 0.204 <br />Saturation Percent % 5 24.2 52.4 32.96 <br />Selenium, soluble (Hot Waterl mg/Kg 5 0.039 0.064 0.0512 <br />Sodium Absorption Ratio 5 1.25 2.7 1.888 <br />Sodium, extractable INH4) meq/100g 5 0.36 4.3 1.468 <br />Sodium, soluble ISat. Pastel meq/L 5 2.76 4.66 3.56 <br />Solids, Percent % 5 78.4 81.4 80.46 <br />Sulfur Pyritic (HN03 extractable) °~ 5 <0.01 0.17 0.08 <br />Sulfur Residual % 5 0.14 0.78 0.386 <br />Sulfur Sulfate IHCI extractable) °~ 5 0.04 0.14 0.08 <br />Sulfur Total % 5 0.34 0.89 0.544 <br />Texture <br />Clay % 5 7.5 37.5 16 <br />Sand % 5 20 70 48.5 <br />Silt % 5 22.5 42.5 35.5 <br />Zinc, extractable IAB-DTPAI mg/Kg 5 7 12.3 9.56 <br />Notes: <br />Avera a calculated using the MDL value for results below MDL <br />37 Revised O1 /02 <br />