2017-02-03_PERMIT FILE - C1980004 (6)

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Table 2.1-7 CAMEO SEAM COAL ANALYSIS BY:A Standard Laboratories, B by ACZ DATE SAMPLED: "A" 10/25/07 "B"02/11/08 CONCENTRATION PARAMETER A I B MIN Average MAX Units pH (1) 8.0 8.0 8.0 8.0 8.0 Ph Units Elect. Conductivity(1) 0.500 0.394 0.394 0.447 0.500 mmhos/cm Total Combustible Solids 66.9 66.9 66.9 66.9 % Textural Analysis Sand LS/S N/A Sand 90.4 87.5 87.5 89.0 90.4 % Silt 7.4 7.5 7.4 7.5 7.5 % Clay 2.2 5.0 2.2 3.6 5.0 % Saturation Percentage 44.9 16.1 16.1 30.5 44.9 % SAR 5.81 3.67 3.67 4.74 5.80 --- Calcium,soluble(1) 0.40 0.52 0.40 0.46 0.52 me /L Magnesium, soluble(1) 0.40 0.43 0.40 0.42 0.43 meq/L Sodium,soluble(1) 2.53 2.53 2.5 2.5 meq/L Sulfur, P rltic 0.03 0.09 0.03 0.06 0.09 % Sulfur, Sulfate -0.01 0.03 -0.01 0.01 0.03 % Sulfur, Organic 0.54 0.47 0.47 0.51 0.54 % Sulfur,Total 0.57 0.59 0.57 0.58 0.59 % Acid Generation Potential calc on Sulfur total) 18 18 18 18 tCaCO3/Kt Acid Base Potential (calc on Sulfur total) 5 5 5 5 tCaCO3/Kt Acid Neutralization Potential 23 23 23 23 tCaCO3/Kt Neutralization Potential as CaCO3 2 2 2 2 % Nitrogen, Nitrate(1) 1.31 0.3 0.30 0.81 1.3 mg/Kg Nitrate/Nitrite as N 0.5 0.50 0.50 0.5 mg/Kg Nitrite as N 0.16 0.16 0.16 0.2 mg/Kg Cadmium, extractable 3 U 0.00 0.00 mg/Kg Copper, extractable 3) 0.80 0.80 0.80 0.8 mg/Kg Arsenic,extractable(3) U 0.00 0.0 mg/Kg Boron, soluble(1) 0.877 0.31 0.3 0.59 0.9 me /L Iron, (3) 7.0 7.0 7.0 7 mg/Kg Lead, (3) 3 3.0 3.00 3.0 mg/Kg Manganese,extractable(3) 1.7 1.7 1.70 1.7 mg/Kg Mercury,extractable(4) U 0.0 0.00 0.00 mg/Kg Molybdenum,extractable(5) 0.03 0.03 0.03 0.03 mg/Kg Selenium,extractable(3) 0.001 0.001 0.001 0.001 mg/Kg Zinc, extractable(3) 1.4 1.4 1.40 1.4 mg/Kg Note: "U"indicates that the value is "Less Than"the method detection limit. (1)=Saturated Paste Extraction (2)= Hot Water Extraction (3)=AB-DTPA Extraction (4) =Acid Extract (5) =Ammonium oxalate "A"Grab Sample from McClane Canyon Mine Coal "B"Grab Sample from McClane Canyon Mine Coal