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October 2004 -29- 043-2170 <br />• 6.1.1 Conformance Testine <br />Geomembrane manufactured by Poly-Flex was installed in the OSA. A Golder representative <br />performed geomembrane conformance sampling at the Poly-Flex plant in Grand Prairie, Texas. <br />Samples were also sent to Golder's geosynthetic laboratory in Duluth, Georgia, for conformance <br />testing. Geomembrane rolls were not used on the project unless approved by Golder based on <br />conformance test results. <br />Prior to 40-mil and 80-mil geomembrane arrival to the site, Golder performed 22 conformance tests at <br />a frequency of one test per 143,500 square feet, exceeding the minimum specified testing frequencies <br />of one test per 150,000 squaze feet. One of the conformance tests failed to meet the average thickness <br />requirements. Golder conducted additional conformance testing to bound the failing sample. The <br />failing rolls were rejected and not delivered to the project site. Conformance testing for the 40-mil <br />smooth and 80-mil single-sided textured geomembrane used for Phase Nc OSA construction met <br />specifications. Conformance test results aze presented in Appendix K-1. <br />6.1.2 Deplovment Monitoring <br />• <br />Geomembrane panel deployment monitoring performed by Golder included: <br />• • Observation of panel surface condition and panel overlap; <br />• Assignment of panel numbers; <br />• Verification of factory roll number and receipt of complete certification prior to <br />allowing deployment; <br />• Measurement of sheet thickness; <br />• Measurement of ambient air temperature at time of deployment; <br />• Documentation of deployed panel lengths; <br />• Development of panel layout record drawing; and <br />• Observation of the Phase Nc to Phase IVb tie-in. <br />Prior to the deployment of geomembrane, Golder and Poly-Flex verified that the subgrade was free of <br />soft spots, protrusions, angular particles, abrupt grade changes, and loose soil. Golder and Poly-Flex <br />• verified that the SLF surface had been proof-rolled, and was free of desiccation cracks. Where the <br />e~wuvo~aoo~c<n.Qnenrvoiow~anva.wao.~xusc<nrervcam Golder Associates <br />