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lens or other adverse conditions are encountered. We understand you plan to construct the <br /> embankment slope liner using 3:1 (horizontal to vertical) slopes. <br /> The soils and bedrock on the project site appear suitable to the goals of the project if placed and <br /> compacted properly. We recommend you plan for quality control testing on a regular basis to <br /> help ensure the liner soils are placed and compacted in accordance with the design specifications. <br /> Care should be taken to avoid lamination between lifts of liner soils or at the bedrock soil <br /> interface. We recommend that soils to be placed in embankment are compacted with a kneading <br /> action compactor such as a sheepsfoot compactor to reduce the risk of lamination. Additionally <br /> we recommend that the foundation and cut-off key trench should be wetted and rolled with a <br /> sheepsfoot to improve bonding between the bedrock and the first lift of embankment soils. <br /> LIMITATIONS <br /> The design in this memo is based on the soil information provided. During mining if <br /> significantly different conditions are encountered such as mud lenses, deeper bedrock or weak <br /> soils we should be contacted to evaluate the need for further analysis. Depending upon the <br /> conditions encountered in the mine highwalls, site specific stability analysis, seepage analysis, <br /> and other analyses and design layout efforts may be required to develop final reclamation slopes <br /> around the mine perimeter. <br /> If you have questions regarding our design assumptions or these analyses, please feel free to call. <br /> P\0201 LG Evenst\0201 011 Ftreatone Gravel Resource MmeTroject Manuandesign ruemoTirestone MEMORANDUM docx <br /> - 4 - <br />