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There are no irrigation structure or surface water impoundments existing or planned at the site. Water <br />requirements for the gravel mining and processing operations are expected to be minimal. Water <br />requirements for dust control will be obtained and hauled from the landowner's industrial permitted <br />water wells. Water utilized for mining and crushing operations as well as for dust control is estimated to <br />not exceed approximately 6000 gallons per month during operations. <br />d) Size of Area to be Worked <br />The Mining Plan (Exhibit C2) shows the proposed location of affected areas due to mining, transport, <br />processing and soil stockpiling. The proposed mining areas are split into 4 Cells, further described below, <br />showing the progression of mining activities, with Cell 4 not to be worked until County Road 112 is <br />relocated. <br />In order to produce 100,000 annual tons of material within specifications, approximately 140,000 tons of <br />the gravel zone must be mined out. The gravel occurs in a zone roughly 10 feet thick that is covered with <br />up to 10 feet of loess and topsoil. The gravel zone occurs on top of a hard sandstone layer which forms a <br />hard surface that limits deeper excavation. This hard sandstone layer is located at approximately elevation <br />5,235 feet above sea level, which is the proposed limits of mining, as shown on Exhibits C1 and C2. <br />The total acreage to be disturbed from the operation is 66.6 acres, which includes mining extraction areas <br />as well as construction of the processing site. The size of the areas (Cells) to be worked at any given time <br />ranges from 5 to 19 acres, though final reclamation will occur only at the completion of all mining activity. <br />The areas of each mining cell, as listed below, reflect the area to be "mined" and do include other <br />disturbances such as fill or construction of the processing area. <br />Cell 1: <br />Size: 12.7 acres <br />Anticipated Mining duration: 2 years <br />CeII 2: <br />Size: 19.5 acres <br />Anticipated Mining duration: 2 years <br />CeII 3: <br />Size: 19.2 acres <br />Anticipated Mining duration: 2 years <br />CeII 4: <br />Size: 6.4 acres <br />Anticipated Mining duration: 1 year <br />2 <br />