2009-12-21_REVISION - M1980244 (43)

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August 2002 -40- 003 -2203 of each seam to verify that no additional repairs were required. In the event that additional repairs were needed, Golder marked the location requiring repair on the geomembrane, documented the location, and brought the repair area to the attention of Poly -Flex. Once Poly -Flex made repairs, Golder checked the repair location to verify completion. Golder inspected all seams for quality and completion. Golder personnel conducted a final walk - through to verify completion of the entire geomembrane system and to identify any additional damage that may have occurred during construction operations. Golder recorded observations made during seaming. The fusion - welding summary is presented in Appendix K -5, and the extrusion - welding summary is presented in Appendix K -6. 6.1.4 Defect and Repair Observations Golder inspected geomembrane panels for damage that may have occurred during manufacture, transport, deployment, or installation as discussed in Section 6.1. Golder repeatedly observed all panels and seams for defects until Ames covered the geomembrane with DCF. Golder documented defects by assigning a unique defect identification code to each defect, and marking each defect code on the geomembrane. The summary of detects, repairs, ana non - destructive testing of repairs, including the approximate location of each repair is presented in Appendix K -7. 6.1.5 Destructive Testing Golder selected destructive test locations based on Poly- Flex's completion of approximately 78,661 lineal feet of welding, various working conditions, and on seaming observations (e.g., suspicion of a defective weld). Poly -Flex obtained and tested 164 fusion seam destructive samples and 9 extrusion seam destructive samples during the installation of the geomembrane in the Phase IVa OSA. • i.XaoWM'04 %CatRepMDZWm22o3,oaao.a 740t Golder Associates