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ameO <br />6.2.4 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. AMEC repeatedly <br />observed all panels and seams for defects until Ames covered the geomembrane with BF. No <br />damaged or defective liner was used. <br />AMEC documented defects by assigning a unique defect identification code to each defect, and <br />marking each defect code on the geomembrane. The summaries of defects, repairs, and <br />non - destructive testing of repairs, including the approximate locations of each repair are <br />presented in Appendix G -4. <br />6.2.5 Destructive Testing <br />AMEC selected destructive test locations based on Lonestar's completion of geomembrane <br />welding, various working conditions, and on seaming observations (e.g., suspicion of a defective <br />weld). Lonestar obtained and tested three fusion seam destructive samples during the <br />installation of the geomembrane. <br />Lonestar constructed approximately 1,218 linear feet of fusion welded seams and no extrusion <br />welded seams. The specified frequency of destructive testing was one test per 500 linear feet <br />of fusion welds. AMEC identified and Lonestar obtained destructive samples from the <br />geomembrane panel seams at a frequency of one destructive test sample per 406 linear feet of <br />fusion welded seams. The test frequencies exceeded project requirements. <br />Field destructive testing of seams consisted of testing ten 1 -inch wide coupons, five of which <br />were tested for peel, and five of which were tested for shear. Lonestar tested the inside and <br />outside tracks of the fusion welds for peel. Lonestar performed all destructive tests on -site <br />using a field tensiometer, and AMEC observed and documented all tests. <br />The specified acceptance criteria for 80 -mil single sided texture LLDPE shear tests was that <br />four of the five coupons tested must have an ultimate strength of at least 120 pounds per pulling <br />inch (ppi) prior to yield. The specified acceptance criteria for peel tests was that four of the five <br />coupons tested must have ultimate strength of at least 100 ppi and achieve a Film Tear Bond <br />(FTB) upon breaking. All destructive fusion seam and extrusion seam samples met <br />specifications. <br />The summaries of destructive test results for fusion seams for the geomembrane are presented <br />in Appendix G -5. Figures 4 and 5 show the destructive test sample locations. <br />19 <br />