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BOWIE RESOURCES, LLC <br />Bowie No. 2 Mine <br />Coal Mine Waste Bank Nos. 1, 2, & 3 Inspections - 4th Quarter 2015 <br />On December 7, 2015 a visual inspection of the Bowie No. 2 Mine coal mine waste <br />banks was performed by the undersigned in accordance with Rule 4.10.2. This <br />inspection includes Gob Pile Nos. 1, 2, and 3. Pile No. 1 is considered inactive. Pile <br />no. 2 is located north of Bowie Road. Pile no. 3 is located south of Bowie Road. <br />I, Tamme Bishop, P.E., have a wide variety of experience in the design and construction <br />of earth fill embankments. Nothing was observed during the inspection that would <br />indicate the piles have a potential for failure. No seepage was noted at the toe of pile <br />no.2. The previously noted damp spots at the toe of gob pile #3 were not visible. The <br />underdrain was flowing, and the water was clear. On the far east side of gob pile #2, <br />there was one windrow of stacked gob. Gob from the east drying area at gob pile #3 <br />has been hauled out of the pit and placed on top of the pile. All organic material and <br />topsoil has been removed ahead of the waste bank founding. The diversion ditches at <br />gob pile #2 were inspected, both lower and upper, and found to be in good condition. <br />The upper and lower diversion ditches at gob pile #3 were inspected, and were in good <br />condition. A new seep has been discovered at gob pile #3, north of the east drying <br />area. At this time, the seep will not impact the long term stability of the gob pile. <br />However, before final placement and compaction of gob in the footprint of the east <br />drying area, an underdrain will be installed. Approval of the underdrain design was <br />incorporated into the permit under Technical Revision No. 105. <br />At gob pile #2, the first bench east of the haul road is covered with soil. The second <br />bench east of the haul road is mostly covered with a subsoil pile. Most of the third and <br />forth benches east of the road are covered with soil. Soil has been placed on most of <br />the second and third benches west of the haul road. <br />Most of the coal mine waste was generated from the preparation plant. Approximately <br />29,406 tons of gob were hauled to gob pile #2 during the quarter. Coal mine waste is to <br />be placed in the piles in approximately horizontal lifts no more than 24 -inches thick. <br />The coal mine waste is dried and then spread and compacted by self propelled <br />sheepsfoot compactors. Forty three (43) compaction tests were performed during the <br />quarter. Forty (40) at gob pile #2 and three (3) at gob pile #3. All tests met <br />specifications. A test meets specifications if the test attains at least 90% of the <br />maximum dry density attained in a laboratory compaction test in accordance with ASTM <br />D698. There are no outstanding density test failures at the end of the third quarter. <br />The top of gob pile #2 serves as a drying area for end dumped gob. Gob is to be <br />stacked to a maximum height of 20 feet, with a slope angle up to 1.5h:1v. A 25 foot <br />buffer zone on the face of the gob pile will be maintained at all times. Gob will be <br />spread and compacted to the currently approved slope configuration as soon as gob <br />-1- <br />