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June 24, 2003 -36- 003-2203.7 <br />6.0 GEOSYNTHETIC CQA TESTING AND MONITORING <br />The following sections describe the CQA activities performed by Golder for the geomembrane <br />installed in the Phase IVb PSSA, and the geosynthetics installed in the LDT and Underdrains. <br />In accordance with the Golder CQA Plan, when a Golder monitor observed deficiencies, the monitor <br />determined the nature and extent of the problem and notified Poly-Flex and/or CC&V. When <br />unsatisfactory test results identified a deficiency, Golder performed additional tests to define the <br />extent of the deficient area. Poly-Flex corrected deficiencies to meet the requirements of the <br />specifications, and Golder retested and/or approved the corrected deficiency prior to any additional <br />related work. <br />6.1 PSSA Geomembrane <br />CQA activities conducted by Golder during the installation of the LLDPE geomembrane in the <br />Phase Nb PSSA consisted of the following: <br />• • Conformance sampling and testing of the geomembrane; <br />• Observation and approval of the SLF or BF surface prior to deployment of <br />100-mil single-sided textured LLDPE geomembrane, 100-mil double-sided <br />textured LLDPE geomembrane and 100-mil smooth LLDPE geomembrane <br />(lower liner); <br />• Observation and approval of the LVSCF surface prior to deployment of 100-mil <br />smooth, 100-mil single-sided textured or 100-mil double-sided textured <br />geomembrane (upper liner); <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 fusion <br />seams and vacuum testing of extrusion seams and repairs. <br />umo¢zozioaoov'n1CenP55AO60.TOOazzoa.oaoo.o~wa~p.a« Golder Associates <br />