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• 4. Topsoil and Overburden Handling <br />The topsoil and overburden on site range from 5' to 6' thick. Since this site's post-mining land use <br />is industrial, the topsoil will not be replaced on the pit floor. Topsoil and overburden will be used <br />to construct the screening berms along 6175 Road and LaSalle Road, as well as the runoff <br />retention berm along the east side of the pit. The berm along the roads will be up to 6' tall and <br />approximately 1420' long; the runoff retention berm will be 3' tall and approximately 1843' long. <br />These berms will both have 3H: IV side slopes and use approximately 7500 CY of material. The <br />overburden and topsoil material balance can be seen in Table E-1. <br />Other details of overburden and topsoil re-distribution are discussed in Exhibit E: Reclamation <br />Plan. <br />All overburden and topsoil stockpiles will be seeded within a year of being placed. Seeding will <br />take place during times of higher seasonal precipitation. The proposed reclamation seed mix is <br />• shown in the Reclamation Plan. <br />5. Water Handling <br />All water rights issues, such as availability of water for this operation, consumption rates, dust <br />control, etc. are presented in Exhibit G - Water Information. <br />6. Schedule of Operations <br />Mining operations will only occur as dictated by demand up to the maximum rates described <br />earlier in the mine plan. Mining, crushing, screening, washing, asphalt and concrete production <br />may take place 12 months of the year, although less material is expected to be needed during <br />winter months. It is possible that raw material will be stockpiled to allow mining to cease for <br />parts of the year. The operator will not have night gravel mining operations, although minor <br />truck activity or repairs may occur after operating hours. <br />is <br />LaSalle Pit, April 09 D-7