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11.Array support posts are generally lightweight "I"beam sections installed deep into the <br />ground.Crew productivity is approximately 30 posts per hour,and the same crew and <br />equipment should have similar productivity removing the posts,resulting in a per ton cost of <br />approximately $13.38.When salvage values have not been recognized the costs for processing <br />metal to size and the hauling cost to a more distant recycling facility are generally not included, <br />but the minimum decommissioning financial security controls by such a large margin that the <br />lower price for removals and freight are not shown. <br />12.The underground collector system cables are placed in trenches with a minimum of four <br />feet of cover. <br />13.To reduce tracking of sediment off-site by trucks removing materials,we have included a <br />stabilized construction entrance price to the “Site Restoration”section based on state DOT bid <br />prices for similar items. <br />14.Perimeter control pricing is based on a sediment fence placed on the downgrade side of <br />the work area perimeters and protecting wetlands and drainage swales within the project area. <br />15.No topsoil will be removed from the landowner's property or used on other landowner's <br />property during decommissioning.The majority of the Project site is not anticipated to have <br />been compacted by heavy truck or equipment traffic so no topsoil will need to be imported, <br />and very few areas will need to be de-compacted.