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• Operations layer soil overlying the liner system components shall immediately follow the <br />installation of the geomembrane and other geosynthetics overlying the GCL. If areas <br />cannot be covered immediately due to steepness of slopes, visqueen or equivalent shall <br />be placed over any exposed GCL. The GCL shall be removed and replaced if it becomes <br />hydrated before the operations layer soil is placed. <br />• All hydrated GCL will be removed and replaced by the Geosynthetics Contractor at no <br />additional cost to the Owner. <br />• On slopes steeper than 10 horizontal to 1 vertical, all GCLs shall be continuous down the <br />slope; that is, no horizontal seam shall be allowed in the slope. <br />• All GCLs will be overlapped. Along the length of the mat, the overlap will be 12 in. <br />(150 mm). Along the width of the mat, the overlap will be 12 in. (300 mm). Additional <br />manufacturers recommendations regarding overlaps will be adhered to. <br />• The overlaps will not be nailed or stapled to the subgrade. <br />The QA/QC Consultant will note any non-compliance and report it to the Construction Manager. <br />4.5.4 Repair <br />Any holes or tears in the GCL will be repaired by placing a GCL patch over the hole; the patch will <br />overlap the edges of the hole or tear by 2 ft (0.6 m) in all directions. If deemed necessary by the <br />Design Engineer, the patch will be secured with a water-based adhesive approved by the <br />Geosynthetics Contractor. Care will be taken to remove any soil or other material that may have <br />penetrated the torn GCL. All repairs will be made at no additional cost to the Owner. The patch will <br />not be nailed or stapled. <br />The QA/QC Consultant will observe any repair, note any non-compliance with the above <br />requirements and report them to the Construction Manager. <br />4.5.5 Materials in Contact with GCL <br />Equipment used for placing granular material will not be driven directly on the GCL or any overlying <br />geosynthetics. Unless otherwise specified by the Design Engineer, all equipment operating on soil <br />material overlying the GCL shall comply with the maximum allowable equipment ground pressures <br />for the given cover soil thickness provided in the Specifications. <br />Installation of the GCL in appurtenant areas, and connection of the GCL to appurtenances will be <br />made according to the drawings. The Geosynthetics Contractor will ensure that the GCL is not <br />damaged while working around appurtenances. <br />0 Page 45 <br />