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W MU FU-06 November 2006 <br /> Forward Landfill Project No.021605.07 <br /> test results is included in Table 4. Detailed results of the clay liner material testing <br /> are included in Appendix D. <br /> Modified Proctor (ASTM D-1557): Vector's CQA Monitor performed six (6) moisture- <br /> density relationships (ASTM D-1557) for compaction references, which corresponds <br /> to a frequency of one per 4,330 cy and satisfies the required frequency of 1 per 5,000 <br /> cy. A summary of test results is shown in Table 4. Results of these tests are <br /> included in Appendix D. <br /> Moisture and Density Testing: The CQA Monitor recorded 172 passing in-place unit <br /> weights (ASTM D-2922) and in-place moisture contents (ASTM D-3017) during the <br /> compaction of the clay liner. The total number of passing tests recorded <br /> corresponds to a frequency of 1 per 150 cy, which satisfies the minimum required <br /> frequency of 1 per 250 cy. In addition, grab samples were collected at the density <br /> test locations for oven moisture determination. The oven moisture contents were <br /> compared to the nuclear gauge moisture contents. The oven moisture contents were <br /> within acceptable range of the nuclear gauge moisture contents. Oven moisture <br /> contents (ASTM D-2216) were performed at the specified frequency of 1 per <br /> 2,500 cy. Areas that failed to meet the acceptable compaction were reworked and/or <br /> replaced and retested until a passing result was achieved. Summaries of the field <br /> moisture/density testing and test locations are included in Appendix D. <br /> Density Verification: To verify the in situ density by the nuclear gauge, the wet <br /> density values obtained by the nuclear gauge were compared to the wet density <br /> determined from the sand cone tests. Ten (10) sand cone tests were conducted at a <br /> frequency on 1 per 2,600 cy, which meets the specified frequency of 1 per 5,000 cy. <br /> Results of the density testing conducted by the sand cone method are included in <br /> Appendix D. <br /> Vector Engineering,Inc. • 143E Spring Hill Drive•Grass Valley,CA 95945-(530)272-2448 <br /> -14- <br />