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Loveland Ready-Mix, Concrete, Inc. 8 September 2021 <br />updated_exhibits_d.docx <br /> <br />Topsoil will be excavated with front-end loaders, scrapers, or other similar equipment. The <br />topsoil will be placed in berms at the edge of the active mine phase and stabilized as <br />required. The construction material will be mined with an excavator. The construction <br />material will be transported offsite in 15-ton tandem dump trucks. <br />6.3 All Water Diversions and Impoundments <br />Sub-section 6.4.4(c) requirements of the Rules and Regulations are described in this <br />section. <br />The operator plans to mine the material wet; no dewatering activities are proposed. <br />Stormwater that flows on to the site will be captured and contained in the cell(s) or allowed <br />to flow through the site using historical channels in undisturbed portions of the site. <br />Likewise, stormwater generated on site in disturbed areas will flow to the mining cells. <br />Stormwater from the access road will be diverted back to the cell(s). The operator will <br />develop and comply with a Stormwater Management Plan (SWMP). <br />6.4 Working Area <br />Sub-section 6.4.4(d) of the Rules and Regulations requires a description of the size/areas <br />of the mine to be worked at any one time. The proposed permit site will be divided into <br />three cells and mined in phases. Cell 1 (C2) contains 36.7 acres, Cell 2 (C2) contains 10.9 <br />acres, and Cell3 (C3) contains 28.3 acres. Exhibit C shows the progression of the mining <br />phases through each cell. Table 1 shows cell sizes, aggregate, topsoil, and quantities for <br />each cell. <br />Table 1 Estimated Mining Quantities <br />Cell Area (AC) Total <br />Volume <br />(YD3) <br />Topsoil <br />Volume <br />(YD3) <br />Gravel <br />Volume <br />(YD3) <br />Gravel <br />Weight <br />(Tons) <br />C1 36.7 1,404,361 50,520 1,353,840 2,166,145 <br />C2 10.9 414,877 1,399 413,478 661,565 <br />C3 28.3 1,101,661 28,137 1,073,524 1,717,639 <br />(C1,C2,C3) 75.9 2,920,898 80,056 2,840,843 4,545,348 <br />