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Cripple Creek & Victor Gold Mining Company <br />Cresson Project <br />Quality Assurance Monitoring and Test Results <br />Liner Recertification <br />December 17, 2009 <br />2.4 Drain Cover Fill <br />Ames began placing DCF in the Phase IV recertification areas November 11 2009 and <br />completed placement on November 24 2009. DCF material was excavated from the old <br />substation site grounding grid. Ames placed approximately 820 cubic yards of DCF. DCF was <br />placed in a minimum 2 -foot thick lift over the geomembrane. During fill placement, PVC grade <br />markers were placed at grade breaks and on a maximum 50 -foot by 50 -foot grid. After DCF <br />placement, PVC grade markers were removed, and Ames performed any additional grading <br />required. Ames placed DCF in an uphill direction on any slopes steeper than 41-1:1 V. <br />i <br />S: \PROJECTS \7125E CCV CQA \H2 - DESIGN\LINER RECERTIFICATION REPORT\REPORT BODY\QA MONTIORING AND TEST RESULTS LINER 7 <br />RECERTIFICATICKDOC <br />