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n n <br /> Finished product from this facility is distributed throughout the San Joaquin valley as well as <br /> areas in the East Bay. Material is removed from the facility by way of the haul route indicated <br /> in Figure 1 by means of contract trucking. It is anticipated that material will not be hauled <br /> directly from the proposed site. <br /> 2. Topsoil <br /> There is approximately 114,000 CY of topsoil, at an average depth of 2 feet, on this site. This <br /> material will be stripped using CAT scrapers. Stockpiles will be created from this material as <br /> indicated in Figure 3. These stockpiles will be vegetated to prevent erosion and reduce dust <br /> emissions. <br /> 3. Overburden/haste/Ore <br /> Sand and gravel extraction from this site will be accomplished in an open pit operation. <br /> Material will be extracted and hauled using either scrapers and/or a truck/shovel operation. <br /> This extracted material will be fed into an in-pit feeder and conveyor system that in turn will <br /> feed the existing bridge conveyor system and processing plant. <br /> Excavation depth will vary up to 100 vertical feet below the existing ground elevations,with an <br /> average final reclamation depth of 80 ft. This final elevation will be dependent on the volume <br /> fof clay, overburden, and topsoil material replaced on the excavation floor. Excavation slopes <br /> will be constructed at a gradient of 11/2:1 (horizontal to vertical). This slope is based on studies <br /> completed by Kleinfelder indicating material in the QX-99-1 excavation is appropriate for this <br /> type of slope. Since this site is directly adjacent to QX-99-1,it is assumed that this slope will be <br /> acceptable at the proposed site. Final slopes will be contoured at a gradient of 2:1 unless <br /> proven in excavation that 11/2,:1 is acceptable. Depth of excavation will terminate at all times <br /> above the water table. Water was not encountered in exploration at QX-99-1 in any of the <br /> i <br />{ boteholes to a depth of 125'. As this property is farther away from Corral Hollow Green, it is <br />{ assumed that the water table will be no closer to the surface at this proposed site and water will <br /> not be encountered. In addition 12 foot benching will be constructed every 50 vertical feet on <br /> the final slopes. Mining will proceed in the phases described in general in Table 1 and <br /> reclamation will occur as described in Figures 3, 4,and 5. <br /> r <br /> I 5 <br />