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• Standard Proctor compaction (ASTM D698); <br />• Permeability (ASTM D5084, Method D); <br />• In -place density testing (ASTM D2922); <br />• Soil description (ASTM D2488); <br />• Bulk specific gravity (ASTM C127); and <br />• Point load strength index (ASTM D5731, Method D). <br />AMEC conducted appropriate tests as required by the specifications for SF, PBM, SLF, <br />DCF, and SSF. <br />The laboratory test results are summarized in Tables 5 through 9 and are presented in <br />Appendix H. <br />4.1.1 Grain Size Distribution <br />ame0 <br />AMEC analyzed the grain size distribution (gradation) of samples of SF, PBM, SLF, DCF, <br />and SSF. The results of gradation analyses are presented in Appendix H.1 and <br />summarized in Tables 5 through 9. <br />AMEC performed two (2) CQA gradations of SF. The testing frequency (approximately one <br />test per 16,900 cubic yards) exceeded the minimum specified testing frequency of one test <br />per 50,000 cubic yards. The SF CQA gradation results met project specifications and the <br />results are presented in Appendix H.1 and summarized in Table 5. <br />AMEC performed one (1) CQA gradation of PBM. The testing frequency (approximately one <br />test per 9,040 cubic yards) exceeded the minimum specified testing frequency of one test <br />per 10,000 cubic yards. The PBM CQA gradations met project specifications, and the <br />results are presented in Appendix H.1 and summarized in Table 6. <br />AMEC performed five (5) CQA gradations of SLF. The testing frequency (approximately one <br />test per 1,028 cubic yards) exceeded the minimum specified testing frequency of one test <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 15 <br />