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<br />Cripple Creek & Victor Gold Mining Company <br />Cresson Project <br />Quality Assurance Monitoring and Test Results ameO <br />Load Out Bin Relocation <br />July 7, 2009 <br />6.1.1 Conformance Testing <br />Geomembrane manufactured by Poly-Flex was installed in the LOB. An AMEC representative <br />performed geomembrane conformance sampling at the Poly-Flex plant in Grand Prairie, Texas. <br />Samples were sent to TRI/Environmental, Inc. geosynthetic laboratory in Austin, Texas, for <br />conformance testing. Geomembrane rolls were not used on the project unless approved by <br />AMEC based on conformance test results. <br />Prior to the geomembrane arrival to site, TRI performed 3 conformance tests at a frequency of <br />one test per 78,775 square feet, exceeding the minimum specified testing frequency of one test <br />per 150,000 square feet. Conformance testing for the 80-mil smooth and 100-mil single sided <br />texture LLDPE geomembrane used to construct the LOB liner system met specifications. <br />Conformance test results are presented in Appendix K. <br />6.1.2 Deployment Monitoring <br />Geomembrane panel deployment monitoring performed by AMEC included: <br />¦ Observation of panel surface condition and panel overlap; <br />• <br />0 <br />¦ Assignment of panel numbers; <br />¦ Verification of factory roll number and receipt of complete certification prior to allowing <br />deployment; <br />¦ Measurement of sheet thickness; <br />¦ Documentation of deployed panel lengths; <br />¦ Development of panel layout record drawing; and <br />¦ Observation of Phase IVc tie-in. <br />Prior to the deployment of geomembrane, AMEC and Lonestar verified that the subgrade was <br />free of soft spots, protrusions, angular particles, abrupt grade changes, and loose soil. AMEC <br />and Lonestar verified that the SLF surface had been proof-rolled, and that the SLF surface was <br />free of desiccation cracks. Where the surface of the SLF did not meet specifiations, Ames <br />repaired the area and re-compacted the surface. Lonestar provided written certification of <br />geomembrane subgrade acceptance. The subgrade acceptance certificates are presented in <br />Appendix G. <br />SAPROJECTS\1125E CCV CQA\H3 - CONSTRUCTION\LOB CERT REPORT\REPORT BODY\LOB CERT REPORT 2009.07.07.DOC <br />18