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Cripple Creek & Victor Gold Mining Company <br />Cresson Project <br />Quality Assurance Monitoring and Test Results <br />Phase 4B /C Triangle Liner Certification <br />August 10, 2010 <br />2.4 Drain Cover Fill <br />Ames began placing DCF in the Phase 413/4C Triangle area May 14 and completed placement <br />on May 15, 2010. Ames placed approximately 550 cubic yards of DCF. The DCF was placed in <br />a minimum 2 -foot thick lift over the geomembrane. During fill placement, PVC grade markers <br />were placed at grade breaks. After DCF placement, Ames performed any additional grading <br />required. Ames placed DCF in an uphill direction on any slopes steeper than 4H:1 V. The DCF <br />layout is shown in Figure 6. <br />S \PROJECTS\1125E CCV CQA \H2 - DESIGN \TRIANGLE \FINAL \TRIANGLE CERTIFICATION REPORT FINAL REV1 DOC 7 <br />