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Cripple Creek & Victor Gold Mining Company <br />Laboratory Liner Extension <br />Final Report <br />Quality Assurance Monitoring & Test Results <br />January 14, 2014 <br />ameO <br />AMEC documented Lone Star personnel performing the seaming and the equipment <br />used. Following the completion of seaming and routine repairs, AMEC checked the <br />full length of each seam to verify no additional repairs were required. In the event <br />additional repairs were needed, AMEC marked the location requiring repair on the <br />geomembrane, documented the location, and brought the repair area to the attention <br />of Lone Star. Once Lone Star made repairs, AMEC checked the repair location to <br />verify completion to project specifications. All seams were inspected for quality and <br />completion. AMEC personnel conducted a final walk through to verify completion of <br />the entire geomembrane system and to identify any additional damage that may have <br />occurred during construction operations. Any additional damage found during the final <br />walk through was marked and documented by AMEC and brought to the attention of <br />Lone Star and repaired. <br />5.2.5 Defect and Repair Observations <br />AMEC inspected geomembrane panels for damage that may have occurred during <br />manufacture, transport, deployment, or installation as discussed in Section 5. All <br />panels and seams were repeatedly observed for defects until Ames covered the <br />geomembrane with geotextile and concrete. No damaged or defective liner was used. <br />AMEC documented defects by assigning a unique defect identification code to each <br />defect, and marking each defect code on the geomembrane. The summaries of <br />defects, repairs, and non - destructive testing of repairs, including the approximate <br />locations of each repair are presented in Appendix H.4. <br />5.2.6 Destructive Testing <br />AMEC selected destructive test locations based on Lone Star's completion of <br />geomembrane welding, various working conditions, and on seaming observations <br />(e.g., suspicion of a defective weld). Lone Star obtained and tested one extrusion <br />seam sample during the installation of the geomembrane. <br />Lone Star constructed approximately 150 linear feet of extrusion welded seams and no <br />fusion welded seams. The specified frequency of destructive testing was one test per <br />500 linear feet of welded seams. <br />Field destructive testing of seams consisted of testing ten 1- inch -wide coupons, five of <br />which were tested for peel, and five were tested for shear. Lone Star performed all <br />destructive tests on -site using a field tensiometer, and AMEC observed and <br />documented all tests. <br />The specified acceptance criteria for 80 -mil single -sided texture LLDPE shear tests <br />was four of the five coupons tested must have an ultimate strength of at least 120 <br />pounds per pulling inch (ppi) prior to yield. The specified acceptance criteria for peel <br />tests was that four of the five coupons tested must have ultimate strength of at least <br />sAprojects \1125m -cc &v lab liner extension\h2 - design \lab liner extension \roc reporNab liner roc report.docx 12 <br />