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WMU FU-08 October 2008 <br /> Forward Landfill Project No.021605.08 <br /> laboratory according to the procedures outlined in ASTM D-5084. The permeability <br /> of the samples met the specified value of 3.1 x10-8 cm/s or lower. Results of the <br /> laboratory permeability tests of the LPSL are presented in Appendix D. Table 5 <br /> presents a summary of the LPSL permeability tests. <br /> When the Contractor and CQA Monitor determined that the desired thickness and <br /> grade had been accomplished, the top of the compacted clay was fine graded using a <br /> road grader and was prepared to a smooth finish using a smooth drum compactor. <br /> Vector's CQA Monitor observed the smooth drum rolling procedure and advised the <br /> Contractor of areas where ridges or rough areas were present so that these areas <br /> could be reworked. The surface of the compacted clay liner was also observed for <br /> potential desiccation cracking. Once the surface preparation was complete, the area <br /> was approved for geomembrane placement. A subgrade acceptance form was <br /> prepared by Vector's CQA Monitor and signed by Comanco prior to geomembrane <br /> placement. Subgrade acceptance forms are presented in Appendix E. <br /> Survey verification of the liner thickness and grade was performed by RJA <br /> Associates and reviewed by the CQA Officer prior to geosynthetics placement. <br /> Vector Engineering, Inc. • 143E Spring Hill Drive•Grass Valley, CA 95945 •(530)272-2448 <br /> -15- <br />