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OPEN PIT WASTE DISPOSAL AND <br /> LAKE EMMA RECLAMATION PLAN <br /> The general reclamation/disposal plan is illustrated in a typical <br /> cross-section located in Appendix "A" of this report. <br /> The existing Drainage Trench around the lake hole slopes <br /> generally to the south at approximately a two percent grade. The <br /> top of the proposed fill will be sloped towards this trench at <br /> approximately a three percent grade. <br /> The top three feet of fill are to be composed of rocky overburden <br /> that was stockpiled during surface mining activities. This layer _,, <br /> will be placed in a lift and compacted with heavy construction <br /> equipment. The purpose of this layer is to provide an <br /> erosion-resistant cap of naturally occurring material to protect <br /> the layer of lake sediments underlying it. Moisture-density and <br /> permeability test results for the overburden are located in <br /> Appendix "B" of this report. <br /> The next two feet of fill will be lake sediments . This layer <br /> will also be placed in a lift and compacted by trackinq with <br /> construction equipment. To insure compaction, heavy construction <br /> equipment will be routed over the entire lake sediment layer as <br /> it is being placed . These lake sediments will form a relatively <br /> impermeable cap over the waste and will promote the runoff of <br /> surface water. Test results from the lake sediments are also <br /> located in Appendix "B" of this report. <br /> - 7 - <br />