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<br />1633 Terra Avenue <br />~ t ~ <br />Inter•(Tlountaln Laboratories, Inc. <br />Sheridan, Wyoming 82801 <br />PEABODY COAL COMPANY <br />FLAGSTAFF, ARIZONA <br />Mine: NUCLA EAST <br />June 4, 1987 <br />Lah No. Location <br />rn 1168 870 E <br />a 1169 <br />in 1170 <br />`"' 1171 <br />1]72 <br />1173 <br />m <br />m <br />4 <br />O <br />A <br />Tel. (307) 672-8945 <br /> <br />Page 2 of 3 <br /> Total T.S. Neut. T.S. Sulfate Pyritic Organic Ammonium Boron Selenium Noly6denum Iron Manganese <br /> Sulfur AB Pot. ABP Sulfur Sulfur Sulfur ppm ppm ppm ppm ppm ppm <br />Depths t t/10001 t/1000t t/1000t t t t <br />14.4-24.4 0.60 18.7 66.4 47.7 43.5 0.56 <0.02 0.06 1.57 1.45 <br />24.4-30.8 0.59 18.4 32.6 14.2 53.9 0.56 0.02 0.06 2.13 0.79 <br />30,8-34.5 0.45 14.1 19.7 5.60 39.9 0.26 <0.02 <0.05 21.6 1.82 <br />34.5-42.5 0.55 17.2 22.6 5.40 36.b 0.32 <0.02 D.D9 39.1 2.31 <br />42.5-50.1 1.30 40.6 83.0 42.4 58.7 0.74 0.03 0.07 5.32 0.38 <br />50.1-56.8 1.03 32.2 28.8 -3.40 -0.01 0.86 0.17 32.1 0.52 0.02 0.11 36.3 1.89 <br />Abbreviations used in acid base accounting: T.S.= Total Sulfur, AB= Acid Base, ABP= Acid Base Potential, Neut. Pot.= Neutralization Potential <br />