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Final Construction Quality Assurance Report—WMU FU-13 <br /> Forward Landfill <br /> • TABLE 4 <br /> CLAY LINER LABORATORY PERMEABILITY TESTING SUMMARY <br /> PERM. <br /> SAMPLE NO. SOIL DESCRIPTION (cm/sec) <br /> SPECIFICATIONS <3.1E-08 <br /> P-1 Brown Clay 9.1E-09 <br /> P-2 Brown Clay 8.0E-09 <br /> P-3 Brown Clay 3.8E-09 <br /> P-4 Brown Clay 1.5E-08 <br /> P-5 Brown Clay 6.3E-09 <br /> P-6 Brown Clay 3.1E-08 <br /> P-7 Brown Clay 6.5E-09 <br /> P-8 Brown Clay 7.8E-09 <br /> P-9 Brown Clay 7.9E-09 <br /> 4.5 LCRS GRANULAR DRAINAGE LAYER AND COARSE GRAVEL <br /> The granular drainage layer was placed on the floor of WMU FU-13 for the leachate collection <br /> and removal system (LCRS); the coarse gravel was used in the LCRS ditches, where it was placed <br /> • over the perforated HDPE pipes connected to the leachate collection tanks. <br /> The granular drain material and coarse gravel was obtained from an off-site source. The <br /> granular drainage material (GD)was placed on the floor over cushion geotextile area by <br /> dumping the gravel in a pile and pushing out the material with a low-ground pressure (LGP) D6 <br /> CAT dozer. During placement of the granular drainage material and operations layer soils, the <br /> coarse gravels were placed in the LCRS trenches by a forklift with an extendable boom. GLA's <br /> CQ1A Monitor continuously observed the placement of these materials to ensure that no <br /> damage occurred to the underlying geosynthetics, or no large wrinkles developed during <br /> placement. <br /> Samples of the granular drainage material and coarse gravel were obtained for sieve analyses <br /> and hydraulic conductivity tests. GLA's CQA Monitor performed sieve analysis tests on 5 <br /> samples of the granular drainage material and 2 samples of coarse gravel before sending the <br /> samples to GLA's laboratory for hydraulic conductivity tests. <br /> The test results of the sieve analyses for the LCRS granular drainage material indicated 100% <br /> passing the 3/8-inch sieve and less than 2% passing the No. 200 sieve; all samples fell within the <br /> • specification requirements for this material.The test results on the coarse gravel sieve analyses <br /> indicated 100% passing the 1-inch sieve; less than 5% passing the #4 sieve; and less than 2% <br /> 15 Geo-Logic <br /> ASSOCIATES <br />