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BOWIE RESOURCES, LLC <br />Bowie No. 2 Mine <br />Old Coal Mine Waste Bank Inspection - 4~' Quarter 2006 <br />On December 20, 2006 I performed the required quarterly visual inspection of the Bowie <br />No. 2 Mine coal mine waste bank in accordance with Rule 4.10.2. <br />t, J. E. Stover, P.E., have a wide variety of experience in the design and construction of <br />earth fill embankments. Nothing was observed during the inspection that would indicate the <br />pile has a potential for failure. The gob disposal area was wet and snow covered. All <br />organic material and topsoil has been removed ahead of the waste bank founding. The <br />upper diversion ditch was not inspected due to hazardous walking conditions. <br />The construction of the pile has progressed above the fourth terrace (=6130'). The out <br />slopes of the lower three terraces have been covered. The depth of cover has not been <br />verified. <br />Most of the coal mine waste was generated from the mine. Approximately 1,000 tons were <br />hauled to the pile during the quarter. Coal mine waste is to be placed in the pile in <br />approximately horizontal lifts no more than 24-inches thick. The coal mine waste is spread <br />and compactive effort is provided by a self propelled sheepsfoot compactor or afront-end <br />loader. No compaction tests were taken during the quarter. A test passes if the test <br />attains at least 90% of the maximum dry density attained in a laboratory compaction test in <br />accordance with ASTM D698. <br />A failure of the pile would probably not be a hazard to human life. The pile is located above <br />a large flat bench. The bench is approximately 80 to 150-feet wide directly below the pile. <br />Additionally, the gob pile sediment pond is located below the pile. If the coal mine waste <br />bank failed, the material would very likely be contained on the bench below the pile and or <br />within the gob pile sediment pond. <br />I certify that to the best of my knowledge and belief, <br />coal mine waste bank have been constructed as poe <br />DRMS. ~~ <br />®s~ <br />and other aspects of the old <br />~~lesign approved by the <br />19230 ""; ~ <br />,~~~ Dom- : a^ <br />• 4. r <br />Date <br />P.E. <br />