2013-12-17_PERMIT FILE - M2013081 (7)

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Topsoil will be salvaged throughout mining. The expected topsoil thickness is approximately 12 inches. Topsoil stripped in advance of mining will either be stored in the berms or placed directly on areas that need it for reclamation. As much as possible, topsoil will be directly placed on backfilled and graded reclamation areas to minimize operator cost and unreclaimed area. The size of the topsoil storage is shown in Table D -3. The seed mix used for the berms will be the same used for reclamation of all rangeland areas. This can be found in Exhibit E. Table D -3 Topsoil Storage Berm Topsoil Volume (CY) Status Highway 30,483 Permanent Signal Peak 4,236 Permanent Processing 6,292 Temporary Sta e 2 26,614 ITemporary, Total 67,625 Note: Roughly 42,000 CY of topsoil will be needed for reclamation. Some of this will be stored in the Processing berm and Stage 2 berm, and some will be direct placed. Any topsoil stripped in excess of that required to construct the visual impact berm will be placed on backfilled areas for reclamation. Topsoil available onsite exceeds the topsoil requirements of the operation as shown in Table D -3. Four feet of overburden is expected to be encountered over most of the site. The overburden from initial mining will be either used in the construction berms or stored in temporary stockpiles in the processing area. This is shown on Map C -2. It is anticipated that roughly 400,000 cubic yards of overburden will be generated over the course of mining. The reclamation plan requires only 370,000 cubic yards to achieve the final lake shape and slopes. Any excess overburden will be stored in the bottom of the lake, or to augment the lake shores with shallower slopes if the land owner desires. As often as possible the overburden will be directly placed for reclamation. Tomichi Pit, December 2013 D -5