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ameO <br />6.0 GEOSYNTHETIC CQA TESTING AND MONITORING <br />The following sections describe the CQA activities performed by AMEC for the <br />geomembrane installed in the 2010 Phase 5 VLF, and the geosynthetics installed in the <br />Underdrains and Closure Drains. <br />In accordance with the AMEC CQA Plan, when an AMEC monitor observed deficiencies, the <br />monitor determined the nature and extent of the problem and notified Lone Star and/or <br />CC&V. When unsatisfactory test results identified a deficiency, AMEC performed additional <br />tests to define the extent of the deficient area. Lone Star corrected deficiencies to meet the <br />requirements of the specifications, and AMEC retested and/or approved the corrected <br />deficiency prior to any additional related work. <br />6.1 2010 OSA Geomembrane <br />CQA activities conducted by AMEC during the installation of the LLDPE geomembrane in <br />the 2010 Phase 5 OSA consisted of the following: <br />• Conformance sampling and testing of the geomembrane; <br />• Observation and approval of the SLF surface prior to deployment of 80- <br />mil single-sided textured LLDPE; <br />• Observation and documentation of geomembrane deployment, including <br />verifying sheet thickness and overlap and documenting panel layout; <br />• Observation of trial seam sample testing and documentation of results; <br />• Observation and documentation of field seaming; <br />• Identification of destructive seam sample test locations, observation of <br />destructive seam sample testing, and documentation of test results; <br />• Observation and documentation of geomembrane repairs; and <br />• Observation and documentation of non-destructive pressure testing of <br />fusion seams and vacuum testing of extrusion seams and repairs. <br />• <br />AMEC Earth & Environmental, Inc. <br />2000 S. Colorado Blvd 2-1000 <br />Denver, CO 80222 <br />Tel 303-935-6505 <br />Fax 303-935-6575 www.amec.com <br />41