2014-03-20_PERMIT FILE - M2013081

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Table D -3 Topsoil Storage Berm Topsoil Volume (CY) Status Highway 30,483 Permanent Signal Peak 4,236 Permanent Processing 6,292 Temporary Stage 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 372,000 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. Fine material produced as part of crushing and screening will either be sold as product or placed on the pit floor. 5. Water Handling In order to mine the sand and gravel deposit, the ground water exposed during mining will be pumped out of each pit. This is a common practice in the mining of alluvial material below a water table. A pump will be installed south end of a pit at the beginning of its mining. This pump will be kept at least two feet below the active pit floor at all times, in order to ensure the pumping of clean ground water. The water will be pumped into a sediment pond on the southern Tomichi Pit, December 2013 D -7