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June 24,2003 -29- 003-2203.7 <br />• observed to be rough or inadequate, as discussed in Section 2.6. Golder and Poly-Flex approved the <br />final surface of the SLF prior to geomembrane deployment. <br />4.2.6.2 Moisture-Density Test Results <br />Golder performed a total of 83 in-place moisture-density tests of SLF. Golder compared results of the <br />field moisture content and density tests to the Proctor dry density and optimum moisture content <br />values of material with similar gradation and plasticity chazacteristics. Proctor dry density and <br />optimum moisture content values for samples with greater than ten percent plus three-quarter-inch <br />material were corrected according to ASTM D4718 to facilitate direct comparison to nuclear density <br />values. The moisture-density testing frequency of approximately one test per 369 cubic yards <br />exceeded the minimum specified testing frequency of one test per 500 cubic yards. Nuclear density <br />tests performed for the PSSA SLF are summarized in Table 15. A total of 24 out of the 83 nuclear <br />density tests initially failed to meet specifications. These areas were reworked, re-compacted, and <br />retested to meet specifications. The number of retests was not used to determine the testing <br />frequency. Holes made in the SLF during testing were filled by tamping fine SLF material into the <br />. holes. <br />4.2.6.3 Depth Verification <br />Ames drilled a total of 54 holes in the compacted SLF to verify that the minimum 12-inch compacted <br />depth had been achieved. Golder monitored the SLF depth verification tests and documented results. <br />Depth verification holes were filled with bentonite chips and water. All of the holes drilled into the <br />SLF had compacted depths greater than 12 inches. The testing frequency of 2.2 holes per acre <br />exceeded the minimum specified testing frequency of two measurements per acre. The Soil Liner <br />depth verification results are presented in Table 17. <br />4.2.7 Beddine Fill <br />Field testing included monitoring of placement, compactive effort, and preparation of BF for <br />geomembrane deployment. Depth was verified by QC survey, as shown in Record Drawing No. 5. <br />No nuclear moisture-density tests were performed on the BF finished grade. <br />r 1 <br />L_J <br />c~oo~zzoa~oooo~e~ic.nrssaoem~oo~zzoa.oeoo.ona~xepa« Golder Associates <br />