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no slope failures. Any failure would be governed by the internal angle of friction of the material. This <br /> would limit the failed slope to an angle of 38 degrees or—1.3H:1 V. No slope within the plan reaches <br /> any angle close to 38 degrees. <br /> The anticipated future average total tonnage sold from the site in any one calendar year is 250,000 <br /> tons. Table D-1 below shows a breakdown of the expected average annual production. <br /> Table D-1 <br /> Product Tons Sold <br /> Concrete 29,167 <br /> 2R166 <br /> Pit Run 20,834 <br /> Total 250,000 <br /> The total permit area is 92.74 acres. A breakdown of the estimated areas is included in Table D-2. <br /> Water from the mining operation will not be discharged from the site except through the sediment <br /> pond in the northwest corner of the permit. Surface water and runoff is more fully discussed in Exhibit <br /> G: Water Information. <br /> White River City <br /> July 2022 D-3 Lewicki 81 Associates <br />