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6.1 Conformance Testing <br />Geomembrane manufactured by Poly -Flex was installed in the 2011 Phase 5 VLF OSA 3rd <br />Portion. A TRI /Environmental (TRI) (AMEC subcontractor) representative performed <br />geomembrane conformance sampling at the Poly -Flex plant in Grand Prairie, Texas. <br />Samples were sent to TRI's geosynthetic laboratory in Austin, Texas, for conformance <br />testing. Geomembrane rolls were not used on the project unless approved by AMEC based <br />on conformance test results. <br />Prior to the 40 -mil and 80 -mil geomembrane arrival to site, AMEC performed <br />39 conformance tests at a frequency of one test per 138,221 square feet, exceeding the <br />minimum specified testing frequency of one test per 150,000 square feet. Testing frequency <br />was based on AMEC's inventory of the 40 -mil and 80 -mil geomembrane. Conformance <br />testing for the 40 -mil smooth and 80 -mil single -sided textured LLDPE geomembrane used to <br />construct the 2011 Phase 5 VLF OSA 3 Portion liner system met specifications. <br />Conformance test results are presented in Appendix K. <br />6.2 Deployment Monitoring <br />Geomembrane panel deployment monitoring performed by AMEC 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 <br />prior to allowing deployment; <br />• Measurement of sheet thickness; <br />• Documentation of deployed panel lengths; and <br />• Development of panel layout record drawing. <br />ame0 <br />Prior to the deployment of geomembrane, AMEC and Lone Star verified that the subgrade <br />was free of soft spots, protrusions, angular particles, abrupt grade changes, and loose soil. <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 corn 29 <br />