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WMU FU-06 November 2006 <br /> Forward Landfill Project No.021605.07 <br /> Monitor performed sieve analysis tests on five (5) samples of the granular drainage <br /> gravel. In addition, Vector CQA Monitor performed sieve analysis on one (1) sample <br /> of the coarse gravel fill. <br /> The results of LCRS granular drainage material sieve analyses indicated 100% <br /> passing the 3/8-inch sieve and less than 3% passing the No. 200 sieve. The results of <br /> the coarse gravel sieve analyses indicated 100% passing the 1-inch sieve, maximum <br /> 15% passing the 1/2-inch sieve, maximum 5% passing the No. 4 sieve and maximum <br /> 2% passing the No. 200 sieve. <br /> Hydraulic conductivity testing of the granular drainage material indicated an <br /> average flow rate of 1.0 cm/sec, which exceeds the requirement of 0.1 cm/sec. <br /> Hydraulic conductivity testing of the coarse granular drainage material indicated <br /> an average flow rate of>1.0 cm/sec, which exceeds the requirement of 1 cm/sec. <br /> A summary of the laboratory testing conducted on the granular drainage layer and <br /> the coarse gravel are presented in Tables 5 and 6, respectively. The laboratory test <br /> results of the granular drainage gravel and coarse gravel testing to date are <br /> included in Appendix F and Appendix G, respectively. <br /> TABLE 5 <br /> GRANULAR DRAINAGE MATERIAL LABORATORY TESTING SUMMARY <br /> Specifications 100% <3% >0.1 cm/sec <br /> FG-2 3/8" Pea Gravel 100 0.5 0.28 <br /> FG-3 3/8" Pea Gravel 100 1.0 11 <br /> FG-4 3/8" Pea Gravel 100 1.1 8.3 <br /> FG-5 3/8" Pea Gravel 100 1.1 9.3 <br /> FG-6 1 3/8" Pea Gravel 1 100 1 0.4 1 7.2 <br /> Vector Engineering, Inc. • 143E Spring Hill Drive•Grass Valley, CA 95945•(530)272-2448 <br /> -18- <br />