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~d) Deposit Thickness <br />The commodity to be extracted is a horizontal limestone bed of varying thickness up to <br />15 feet thick and which outcrops on the site. <br />(el Mine Components <br />No permanent structures will be built for the Buffalo Stone Quarry. The affected azea <br />will be accessed along existing roads; no new roads will be built. Processing equipment <br />will consist of rock chopper,and a skid loader. This processing equipment will be <br />brought to the site for intermittent processing and stockpiling of processed materials and <br />then removed from the site. <br />(fl Disturbances <br />All disturbances will occur in the pit area of the operation. The initial development of <br />the Buffalo Stone Quarry will begin in the north corner. The topsoil stockpile will be in <br />the north east corner, As mining develops the mined areas will be used for the storm <br />water detention sump, initial processing, and the initial pit floor as shown on the Mining <br />Plan Map below (Exhibit E-2). The pit will continue by developing a workable North- <br />South face along the contour of the permit azea. The overall slopes of the quarry will be <br />less steep than 3H: I V and aze not anticipated to be over 15 feet high. The quarry slopes <br />will consist of bench faces approximately 2 feet high with bench widths of approximately <br />6 feet. Because the limestone is fractured to varying degrees, the quany slopes aze not <br />anticipated to be uniform; however, all highwalls will be in competent limestone. The <br />• initial quarrying will take place in the north comer of the quarry and create a place for a <br />topsoil stockpile on the north east side and a stormwater detention sump on the west side <br />of quarry. <br />Since the high wall are anticipated to be no higher than IS feet and the overall slope will <br />be no steeper than 3H:1V, no geotechnical stability evaluation is considered necessary in <br />reference to Rule 6.5. <br />No other disturbances are planned for the Buffalo Stone operation. <br />Roads <br />The existing ranch road will be used; no new roads are required for operation. <br />(hl Water Consumption <br />Water for dust abatement is not anticipated to be needed for the quarrying operations. <br />(il Water Mana eg ment <br />No springs are known to occur in the area. Groundwater is not anticipated to be <br />encountered. No surface water of consequence will be intercepted as only small <br />topographical depressions occur above the quarry. Incumbent rainfall and snowmelt <br />(stormwater) shall be directed to a low portion of the quarry in the west side of quarry <br />for retention and/or percolafion into the soils. Stormwater will not be allowed to leave the <br />• affected area. Sediment from any surface water flow will be retained in the affected area, <br />