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Rifle Gi avei P t # JarivaI v %� <br /> • Erosion and sediment control Best Management Practices (BMPs) will be installed <br /> per the Erosion Control Plan (Figure 13, Exhibit D2) and Stormwater Management <br /> Plan and Permit requirements. <br /> 5.2.1.2 Planned Topsoil & Overburden Storage Area <br /> The extent of the planned stockpile areas was calculated assuming that all overburden <br /> material and topsoil that are not used for the construction of perimeter berms will be <br /> stockpiled on site, and retained for final reclamation purposes, with surplus material to be <br /> sold as topsoil and clean fill, respectively. The location of the stockpile area is depicted on <br /> Figure 9, Exhibit C4 and Figure 10, Exhibit C5. Earthwork volume calculations are <br /> provided in Figure 14, Exhibit E2. A typical soil profile illustrating the average conditions <br /> underlying the Permitted Area is provided in Figure 12, Exhibit D1. <br /> Approximately 0.5 feet of topsoil material on average will be cut from the Affected Lands, <br /> corresponding to approximately 9,018 CY, of which 2,221 CY will be used for topsoil and <br /> revegetation of the earthen berm and 566 CY will be used for reclamation in the pond <br /> wetland slope area. The remaining 6,231 CY will be sold as topsoil for landscaping and <br /> other reclamation projects. <br /> Between 1-5 feet of overburden material on average will be cut from the Affected Lands, <br /> corresponding to approximately 45,093 CY, of which 11,303 CY will be used for construction <br /> of the earthen perimeter berms. The remaining 33,790 CY will be sold as clean fill material <br /> for other projects. <br /> These stockpile areas will be placed as shown, outside of the mining footprint but inside the <br /> perimeter berm, which provides physical separation between the stockpiles and any wetland <br /> or tailwater channel buffer areas and will prevent inadvertent sediment discharges. <br /> Size of Area Worked <br /> The size of area involved with this Phase is 19.00 acres. <br /> 26 <br />