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Fine material produced as part of crushing and screening will either be sold as product or placed <br />on the pit floor. <br />5. Water Handling <br />In order to mine the sand and gravel deposit, the ground water exposed during mining will be <br />pumped out of each pit. This is a common practice in the mining of alluvial material below a <br />water table. A pump will be installed south end of a pit at the beginning of its mining. This pump <br />will be kept at least two feet below the active pit floor at all times, in order to ensure the <br />pumping of clean ground water. The water will be pumped into a sediment pond on the southern <br />end of the east pit, where any sediment that has been generated from runoff on the pit floor will <br />settle. The water will then discharge from pond into the surrounding natural drainages and <br />wetland. Map C -2 shows the sediment ponds locations. <br />Since dewatering of an alluvial deposit so close to the central wetlands may lower the ground <br />water level that supports said wetlands, a second pit pump will redirect ground water straight into <br />a standard perforated irrigation pipe that will discharge uphill of the central wetlands. This <br />common operational practice will prevent the wetlands from drying up due to the ground water <br />dewatering. Map C -2 shows the location of these pumps. This pump will also be located below <br />the pit floor, ensuring clean water is what is pumped. <br />All water rights issues such as availability of water for this operation, consumption rates, dust <br />control, etc. is presented in Exhibit G - Water Information. Sediment control designs are <br />included in Exhibit G. <br />6. Schedule of Operations <br />Mining operations will only occur as dictated by demand up to the maximum rates described <br />earlier in the mine plan. Mining, crushing, and screening may take place 12 months out of the <br />year and product will be sold throughout the year, although less material is expected to be sold in <br />winter months. It is possible that processed material will be stockpiled to allow mining and <br />processing to cease for parts of the year. The Tomichi Pit will operate between 7 am and 6 pm <br />Tomichi Pit, December 2013 D -6 <br />