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Am '' <br />WTI I <br />• Standard Proctor compaction (ASTM D698); <br />• Permeability (ASTM D5O84, Method D); <br />• In -place density testing (ASTM D2922); <br />• Soil description (ASTM D2488); <br />• Bulk specific gravity (ASTM C127); and <br />AMEC conducted appropriate tests as required by the specifications for SSF and SLF. <br />The laboratory test results are summarized in Tables 5 and 6 and are presented in <br />Appendix H. <br />4.1.1 Grain Size Distribution <br />AMEC analyzed the grain size distribution (gradation) of samples of SSF and SLF. The <br />results of gradation analyses are presented in Appendix H.1 and summarized in Tables 5 <br />and 6. <br />AMEC performed one (1) CQA gradation of SSF. The testing frequency (approximately one <br />test per 925 cubic yards) exceeded the minimum specified testing frequency of one test per <br />50,000 cubic yards. The SSF CQA gradation results met project specifications and the <br />results are presented in Appendix H.1 and summarized in Table 5. <br />AMEC performed four (4) CQA gradations of SLF. The testing frequency (approximately <br />one test per 118 cubic yards) exceeded the minimum specified testing frequency of one test <br />per 4,000 cubic yards. The SLF CQA gradation results met project specifications and are <br />presented in Appendix H.1 and summarized in Table 6. <br />4.1.2 Moisture Content <br />AMEC measured oven moisture contents of SSF and SLF as part of the CQA program. <br />Moisture content data are presented in Appendix H.1 and Tables 5 and 6. <br />AMEC Environment & Infrastructure, Inc. <br />2000 S. Colorado Blvd 2 -1000 <br />Denver, CO 80222 <br />Tel 303 - 935 -6505 <br />Fax 303 - 935 -6575 www.amec.com <br />12 <br />