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ameO <br />• 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, SLF, DCF, and <br />LDF. <br />The laboratory test results are summarized in Tables 5 through 8 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 SF, SLF, DCF, and <br />LDF. The results of gradation analyses are presented in Appendix H -1 and summarized in <br />Tables 5 through 8. <br />AMEC performed fifty -five (55) CQA gradations of SF. The testing frequency (approximately <br />one test per 45,691 cubic yards) exceeded the minimum specified testing frequency of one <br />test per 50,000 cubic yards. The CQA gradations performed on SF met project <br />specifications. The SF CQA gradation results met project specifications and are <br />summarized in Table 5. <br />AMEC performed six (6) CQA gradations of LDF. The testing frequency (approximately one <br />test per 18 cubic yards) exceeded the minimum specified testing frequency of one test per <br />10,000 cubic yards. The LDF CQA gradations met project specifications, and the results are <br />summarized in Table 6. <br />AMEC Earth & Environmental, 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 />17 <br />