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• The placing and spreading of fill material shall be started at the lowest point of <br />the foundation. Materials will be spread in layers approximately 12 inches deep, <br />and such lifts made uniformly over long stretches and for the full width of <br />embankment. Each lift will be moistened or dried to a uniform moisture content <br />suitable for maximum compaction. Hauling equipment will be routed both ways <br />over the fill and routing varied sufficiently to achieve uniform compaction. <br />Compaction will be carried to the edge of the fills so that the final slopes are firm. <br />The embankment shall be constructed so the design height is achieved at all <br />times, including the period after settlement. The combined upstream and <br />downstream side slopes of the settled embankment shall not be steeper than <br />5h:1 v, with neither slope steeper than 2h:1 v. <br />A failure of this pond would not be expected to cause loss of life or serious <br />property damage. Therefore, DMG rule 4.05.9(8) does not apply. <br />Faces of the embankments including the surrounding areas disturbed will be <br />vegetated to enhance stability. The height of the embankment is less than 10 <br />• feet in vertical height measured from the bottom of the channel to the bottom of <br />the spillway. Anti-seep collars will be installed to control seepage along conduits <br />that extend through the embankment. <br />Site Preparation and Construction <br />The first disturbance at the site will be the construction of the sedimentation pond <br />and associated collection ditches. A topsoil stockpile is provided. Excess <br />material from the construction of the sediment pond will be placed in the coverfill <br />pile. The refuse pile will be constructed in at least three phases. Approximately <br />one third of the area will be cleared of all vegetative or organic material. Suitable <br />topsoil will be removed, and stockpiled. Alluvial material will be salvaged from <br />the foundation of the pile and placed in stockpile. The goal is to salvage <br />approximately 5,000 cubic yards of colluvial material to provide final cover for <br />approximately one third of the refuse pile. <br />M" 2.2-12i 6/02 <br />