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produced were sent to CTL Thompson in Denver for gradation, moisture/compaction, as well as triaxial shear <br />and cohesion. The results of the tests are provided in Appendix 4. Using these parameters, slope stability tests <br />have been performed which confirm that both piles are stable and have an adequate safety factor as long as the <br />proper compaction is achieved when the material is placed in the piles. This compaction requirement is 94% of <br />the maximum dry density, as determined using ASTM D-698. The results of this slope stability analysis is <br />presented in Appendix 4. <br />The moisture and pH testing of the tailings, the mixture of blasted waste rock with the tailings, the methods to <br />achieve compaction, and other requirements for winter conditions are presented in detail in the Tailings and <br />Waste Rock Management Manual, which was developed for the mine personnel's guidance and is presented in <br />Appendix 5. <br />Revenue Mill Certification Page 19 of 20 <br />