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PEABODY COAL COMPANY - WESTERN DIVISION <br /> MONITOR WELL LITHOLOGIC LOG <br /> Mine: Nucla East Page 1 / 1 <br /> Monitor Well Name: GW-N29 (883NC) <br /> Geologic Unit Monitored: Lower Dakota Coal <br /> Ground Surface Elevation: 5640.5 (ft-amsi ) <br /> Location: Mine Coordinatesy <br /> , 597488.1 1114738.2 <br /> N E. <br /> NW 1, SE 1, T 46 . , R 16 W , S 1 <br /> Drilling Date: Start 9/9/87 <br /> Finish <br /> Drilled By: Winnek <br /> Logged By: John Cochran <br /> Geophysically Logged By: Goodwell <br /> Total Depth Drilled: 94.0 ft <br /> FORMATION RECORD <br /> Depth ft Litho logic description of unconsolidated and <br /> From To consolidated units and water horizons <br /> 0.0 2.2 SAND brown <br /> 2.2 3.0 CLAY brown sand <br /> 3.0 10.4 SANDSTONE brown bedrock <br /> 10.4 15.5 SHALE brown wet <br /> 15.5 17.8 SANDSTONE brown <br /> 17.8 30.8 SHALE, brown <br /> 30.8 42.0 SANDSTONE, gray <br /> 42.0 52.8 SHALE, gray with sandstone stringers <br /> 52.8 53.5 SANDSTONE, gray to white <br /> 53.5 55.2 SHALE, gray black <br /> 55.2 61 .5 SHALE, gray <br /> 61 .5 66.6 'SANDSTONE, gray to white <br /> 66.6 70.0 SANDSTONE, gray black <br /> 70.0 72.9 SANDSTONE, gray to white <br /> 72.9 75.4 SHALE, black <br /> 75.4 77.3 COAL, Lower Dakota <br /> 77.3 77.7 SHALEgray <br /> 77.7 78.8 COAL, Lower Dakota <br /> 78.8 80.3 SHALE re <br /> 80.3 83.8 COAL Lower Dakota <br /> 83.8 85.0 SHALE black <br /> 85.0 86.8 SANDSTONEgray to black <br /> 86.8 87.3 SHALEgray . <br /> 87.3 94.0 SANDSTONE, gray to white <br /> T.D. 94.0 <br /> H-10 <br />