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4. Topsoil and Overburden Handling <br />Topsoil removed from Phase 1 of the added area will be used to build the topsoil berm along the <br />Ana Branch. Overburden and topsoil will only be stockpiled at the very beginning of the mining <br />in the added area, as most overburden and topsoil will be used to reclaim the preceding areas. <br />Most reject material produced from the processing of material on the Bunn Ranch site will be <br />placed at the Bunn Ranch site. Some reject material may return to the Gehrman Pit if it is needed <br />for reclamation. <br />Table D-4 <br /> Area <br />(acres) TS Volume <br />(CY) OB Volume <br />(CY) Material Needed to <br />Reclaim Net material after <br />reclamation <br />Phase 1 9.0 14,520 43,560 41,089 16,991 <br />Phase 2 9.6 15,488 46,464 50,218 11,734 <br />Phase 3 8.2 13,229 39,688 41,446 11,471 <br />Total 26.8 43,237 129,712 132,753 40,196 <br />Table D-4 shows a balance of the topsoil and overburden stripped versus the amount of topsoil <br />and overburden used in the reclamation of the pit. The column titled Material Needed to <br />Reclaim is the minimum amount of material which is required for the reclamation of that pit. <br />Excess overburden will be placed in the pit bottom. Most of the overburden material will be used <br />to reclaim the 1 H:1 V to 311:1 V, and achieve the more natural appearance as shown on Map F-1. <br />This plan ensures that there is more than enough overburden and topsoil available to complete <br />reclamation. <br />Topsoil Stockpile <br />Topsoil will not have to be stockpiled to a great extent during the life of the mine. The topsoil <br />that is removed in a phase of mining can be used to reclaim the previously excavated phase, <br />removing the need for any topsoil stockpile during mining. Topsoil set aside at the start of Phase <br />1 will be stored in the topsoil berm along the Ana Branch. The topsoil berm slopes will be <br />211:1 V or less. The berm is 3,850' long and 8' high, with a volume of 18,252 CY. The berm will <br />be vegetated to prevent erosion while it is in place. <br />Gehrman Pit October 09 D-5