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BOWIE RESOURCES LIMITED <br />Bowie No. 2 Mine <br />Coal Mine Waste Bank Inspection - 151 Quarter 2004 <br />On March 27, 2004, I performed the required quarterly visual inspection of the Bowie No. <br />2 Mine coal mine waste bank in accordance with Rule 4.10.2. <br />I, 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 <br />the pile has a potential for failure. The gob disposal area was dry to damp. All organic <br />material and topsoil has been removed ahead of the waste bank founding. <br />The construction of the pile has progressed above the third terrace (=6120'). The out <br />slopes of the terraces have been covered. The depth of cover has not been verified. <br />Most of the coal mine waste was generated from the mine. Approximately 1,560 tons of <br />gob were hauled to the gob pile. 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 <br />spread and compactive effort is provided by a self propelled sheepsfoot compactor or a <br />front-end loader. Compaction tests were performed on March 11`" and 17`". One of the <br />March 11 `h tests (#5) failed. The area around test site #5 was reworked and compacted <br />and was retested on March i 7"'. Except for the test that failed and was retested, the tests <br />attained at least 90% of the maximum dry density attained in a laboratory compaction test <br />in accordance with ASTM D698. Relative compaction test results are enclosed. <br />A failure of the pile would probably not be a hazard to human life. The pile is located <br />above a large flat bench. The bench is approximately 80 to 150-feet wide directly below <br />the pile. Additionally, the gob pile sediment pond is located below the pile. If the coal <br />mine waste bank failed, the material would very likel~~e,sc~ained on the bench below <br />the pile and or within the gob pile sediment pond'+QP~4 R EC~SlF+~ <br />*q~0 ~.~~ t STG ~ qE, ~ <br />~e~ssos• <br />~na~ E <br />--4•~ <br />