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1 <br />of these structures have not been varified by Rocky Mountain <br />Geotechnical and are presented only as reference to their <br />location with respect to the revised pile design. <br />7 CONCLUSIONS ANQ SUMMARY <br />I Based on the analysis contained within this report, the maximum <br />storage height which can be achieved and still maintain the 1.5 <br />minimum factor of safety criteria is 75 feet. This is based on <br />the assumptions that: <br />s The low strength, saturated fine refuse material will <br />be removed at a minimum distance of 80 feet from the <br />final toe location, <br />• That a mixture of fine and coarse refuse material will <br />be compacted to the specified moisture and density re- <br />quirements in the remaining portion of the pile and, <br />• That the hydrolic control structures including the <br />internal rock drain are constructed and operating <br />property. <br />Stability analysis verifying the 1.5 factor of safety is <br />presented on Table 1 and shown graphically on Figure 3. <br />Sensitivity analysis utilized for selection of the 75-foot pile <br />height is presented on Figure 2. The laboratory tests and boring <br />logs documenting properties of the conditions analyzed are <br />included within Appendix A and Appendix B of this report. <br />We hope this report has provided you with all the information you <br />required and that it has been presented in an understandable way. <br />Should any of the points be unclear or should you require <br />additional information, please do not hesitate to contact our <br />office. It should also be pointed out that because of the nature <br />of the data obtained by random sampling such variable and <br />15 <br />