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October 2001 -23- 003-2182.004 <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 External Pond. <br /> 6.1 External Pond Geomembrane <br /> CQA activities conducted by Golder during the installation of the geomembrane in the External <br /> Pond consisted of the following: <br /> ► Conformance sampling and testing of the geomembrane; <br /> ► Observation and approval of the Soil Liner Fill surface prior to <br /> geomembrane deployment; <br /> ► Observation of the 80-mil smooth LLDPE geomembrane; <br /> ► Observation of the 80-mil smooth and single-sided textured HDPE <br /> geomembrane; <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 /> The following sections present a detailed description of each of the above activities. <br /> i\oo\zisz\EXTEM,L POND xr'TrrALDOC Golder Associates <br />