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n <br />~~ <br />As indicated in the previously submitted application, an <br />• overall slope of 20 degrees (2.75H:1V) will provide a stable <br />slope. However, to facilitate slope reclamation and revege- <br />tation while minimizing erosion potential, a slope of 2.5H:1V <br />with 30 foot wide benches has been selected, providing an <br />overall final slope of 3H:1V or 18.2 degrees. The 30 foot <br />wide benches are provided to improve the slope stability and <br />' to provide ample clearance for reclamation activities. <br />5.3 Lateral Stability through the Partially Mined Coal Seam <br />General <br />The final configuration of the refuse pile will accommodate <br />• approximately five million tons of refuse at the final eleva- <br />tion of 6880 feet, instead of 9 million tons as reported in <br />the previously submitted application. An elevation versus <br />volume curve is shown on Drawing No. MG-R-C-001 for refer- <br />ence. <br />In the previously submitted application it is stated that the <br />refuse pile will impose an additional maximum pressure of 300 <br />psi (P. 35 of that report). It should be noted that the <br />maximum overburden depth imposed by the final refuse pile <br />elevation will be on the order of only 160 feet or 135 psi <br />instead of 300 feet and 300 psi. <br /> <br />20 <br />