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October 2004 -20- 043 -2170 <br />The SF Atterberg limits testing frequency (approximately one test per 20,842 cubic yards) exceeded <br />• the minimum specified testing frequency of one test per 50;000 cubic yards. The plasticity index of <br />the SF varied from 10 to 13 and met project specifications. Atterberg limits test , results for SF are <br />presented in Appendix I -1 and summarized in Table 9. <br />4.1.4 Proctor Compaction Tests <br />Golder performed standard Proctor compaction tests of SLF and PBM in order to compare in -place <br />densities and moisture contents with laboratory derived values of maximum dry density and optimum <br />moisture content. <br />Golder performed 21 CQA Standard Proctor compaction tests of SLF. The testing frequency <br />(approximately one test per 4,592 cubic yards) exceeded the minimum specified testing frequency of <br />one test per 5,000 cubic yards. The SLF compaction test results are presented in Appendix I -2 and <br />summarized in Table 10. CQC Proctor tests were not included in the Proctor testing frequency. <br />Golder performed no CQA Standard Proctor compaction tests of the SF samples taken due to <br />materials having in excess of 30 percent retained on the % -inch screen. ASTM D698 requires <br />material have less than 30 percent retained on the' /4 -inch screen in order to be testable with regard to <br />Standard Proctor compaction. <br />Goldcr performed one CQA Standard Proctor compaction test of PBM. No testing frequency was <br />identified in the CQA Plan for this material. The PBM compaction test results are presented in <br />Appendix I -2 and summarized in Table 8. CQC Proctor tests were not included in the Proctor testing <br />frequency. <br />4.1.5 Permeabili Tests <br />Golder conducted permeability tests of SLF. Golder conducted 21 permeability tests of reeompacted <br />samples of SLF at Golder's laboratory in Lakewood, Colorado. The testing frequency (approximately <br />one test per 4,592 cubic yards) exceeded the minimum specified testing frequency of one test per <br />5,000 cubic yards. Testing was performed with a flexible -wall permearneter with back- pressure <br />saturation and a constant rate of flow (ASTM D5084, Method D). The fill was recompacted to the <br />0 , in -place density measured during nuclear density tests and the corresponding moisture content (as <br />t:�aunmoaamc.Rrmv��oo +you: :so.aoau�asc�.,enivFn� Golder Associates <br />