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BOWIE RESOURCES, LLC <br />Bowie No. 2 Mine <br />Coal Mine Waste Bank Nos. 1, 2 & 4 Inspections — 2nd Quarter 2011 <br />On July 1, 2011, I performed a visual inspection of the Bowie No. 2 Mine coal mine waste <br />banks in accordance with Rule 4.10.2. This inspection includes Gob Pile Nos. 1, 2 and 4. <br />I, J. E. Stover, P.E., have a wide variety of experience in the design and construction of earth <br />fill embankments. Nothing was observed during the inspections that would indicate the piles <br />have a potential for failure. The gob disposal areas were dry. All organic material and <br />topsoil has been removed ahead of the waste bank foundin. The upper diversion ditches <br />were inspected with no problems noted. <br />A significant amount of the gob pile no. 2 was covered with three feet of cover and one foot <br />of topsoil during the 4 quarter 2006. Most of the first and second benches were covered. <br />Cover material from gob pile no. 4 is stockpiled on the west side of pile no. 2. Cover material <br />has been removed from the east end of bench number two (pile no. 2). The slope inclination <br />of the coal mine waste has been increased in this area(5h:1v to 3h:1v. TR -61) <br />Most of the coal mine waste was generated from the preparation plant. Approximately <br />68,202 tons of gob were hauled to the gob piles. Coal mine waste is to be placed in the pile <br />in 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.Sixty - <br />three (63) compaction tests were performed during the quarter. Fifty -nine (59) of the sixty - <br />three (63) tests passed. A test passes if the test attains at least 90% of the maximum dry <br />density attained in a laboratory compaction test in accordance with ASTM D698. Three of <br />the areas where the tests failed were re- worked, retested and passed. A test failure on June <br />29th (pt 4629) will be reworked and tested next quarter. There is still a lot of gob stacked for <br />re- handling and compaction. This material must be re- handled and compacted as soon as <br />possible. <br />A failure of the gob pile no. 1 would probably not be a hazard to human life. The pile is <br />located above a large flat bench. The bench is approximately 80 to 150feet wide directly <br />below 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 likely be contained on the bench below the <br />pile and or within the gob pile sediment pond. <br />A failure of the gob piles no. 2 and 4 would probably not be a hazard to human life. A <br />residential dwelling is located over 300 -feet below pile no. 2. The piles are located above <br />Bowie Road. A failure of the piles might damage Bowie Road but would not likely impact the <br />residential dwelling. <br />I certify that to the best of ny knowledge and belief, that tlie3filkargtother aspects of thecoal <br />mine waste banks have been constructed as permitte� .i`I Ygr�a proved by the ERMS. <br />The Operator must re- handle the stacked material arnetclhe rr4),n0Rlaced and <br />compacted as soon as possible. ®� <br />d e <br />II*® L230 <br />i t l ate® <br />Ja s� .®atp,vei <® :o Date <br />Colors iVF final Engineer <br />Registration No. 19230 <br />