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Operatina Plan <br /> Quarry production would start with the excavation of the recycle ponds. This area would <br /> be used though Phase 1 of the mining plan-for the storage of recycle <br /> wash water. This <br /> wash water is required to be in storage for one week to settle out clay. The water would <br /> be reused when the clay has settled to the bottom of the pond and the.water is relatively <br /> clear. The sand and gravel mined from the area of the recycle water ponds would be <br /> stockpiled in the Phase 1 area for future processing. <br /> Start of aggregate production would be in 1998 and would continue though 2054 with the <br /> major portion of the production in the summer and fall months. Tables 3-1 through 3-3 <br /> indicate the estimated production for the life of theroject. <br /> P 1 <br /> Topsoil Excavation and, Stockpiling <br /> The topsoil would be stripped from the surface of the quarry and stockpiled for reclamation <br /> and construction of a required five foot berm and landscaping next to Koster Road (to <br /> mitigate visual effects). Any topsoil stockpile in use in the winter would be revegetated to <br /> prevent erosion. Topsoil would be stockpiled for future reclamation in areas that are not <br /> being mined. <br /> Ove rb u rden-haste/Ore <br /> The quarry would be of the open pit type, mining alluvial sand and gravel to a depth of 125 <br /> feet. All overburden, silts and clays, and topsoil would be used in the reclamation of the <br /> quarry. The quarry would not generate a waste product. Mining, stripping and reclamation <br /> would be completed as shown on the reclamation drawings (Figures 3-3 through 377). <br /> uar Size <br /> The proposed excavation area of the quarry is 130 of the total 142 acres of the project site. <br /> Table 3-4 <br /> k� <br /> Quarry and Processing Plant Area <br /> Phase 1 25 acres <br /> Phase 2 44 acres <br /> Phase 3 40 acres <br /> Phase 4 211 acres <br /> Plant 11 acres* <br /> Total Area Permitted, Disturbed and Reclaimed = 142 Acres <br /> 11 Usable Agricultural Row Crop Land Reclaimed = 88 Acres <br /> *The 11 acres proposed for the processing plant would not be <br /> excavated. <br /> Draft Environmental Impact Report 3-14 ER-96-3 <br />