Laserfiche WebLink
October 2004 -29- 043 -2170 <br />• <br />6.1.1 Conformance Testing <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 square 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 lVc OSA construction met <br />specifications. Conformance test results are presented in Appendix K -1. <br />6.1.2 DepIgMent Monitoring <br />0 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 IVc to Phase M 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 />nV W %317W MCen- QAftIVoioa*4=7&NoaIasumPkIY�eoe Golder Associates <br />