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r SECTION 1: DESCRIPTION OF INDUSTRIAL ACTIVITIES <br />The activities checked below are activities that are presently performed on-site or are <br />expected to be present in the future. <br />LiSTRIPPING <br />The overburden is removed and the material is either sold, hauled away or stockpiled. <br />Stockpiles may be in the form of berms. <br />DEXCAVATION - WET MINING ENVIRONMENT <br />(Check one) <br />DDragline: <br />Sand and gravel is excavated below water level and winnowed adjacent to the open <br />water for the purpose of dewatering. <br />After sufficient dewatering has occurred, the pit run material can be conveyed or <br />hauled by means of loader or trucks for final washing and screening. <br />❑Dredging - bucket type: <br />Material is excavated from below water level and directly conveyed to the plant for <br />final washing and screening. <br />❑Dredging - pump type: <br />Material is sucked into an underwater pipeline and pumped to the surface. A booster <br />pump is sometimes needed to pump the material through the pipeline to the first <br />processing screen which is sometimes as high as 60' from the ground. <br />&EXCAVATION - DRY MINING ENVIRONMENT <br />(Check one) <br />1 i(1An alluvial deposit which intercepts ground water which is pumped down <br />❑A dry terrace deposit wherein ground water is not encountered. <br />When necessary, the water table in the mining area is lowered by means of <br />dewatering ditches and pumps. Material can be excavated within the perimeter ditch <br />without encountering ground water. Moist to dry sand and gravel can then be <br />conveyed by means of loader, truck or conveyor belt to stockpiles or processing plant. <br />WestWater Engineering APPENDIX C - 56 July 2012 <br />