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ameO <br />6.1 Conformance Testing <br />Geomembrane manufactured by GSE Environmental was installed in the Phase 5 Berm <br />Modification. A TRI /Environmental (TRI) (AMEC subcontractor) representative performed <br />geomembrane conformance sampling at the GSE Environmental plant in Houston, 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 passing conformance test results. <br />Prior to the 80 -mil geomembrane arrival to site, AMEC performed two (2) conformance tests <br />at a frequency of one test per 16,403 square feet, exceeding the minimum specified testing <br />frequency of one test per 150,000 square feet. Testing frequency was based on AMEC's <br />inventory of the 80 -mil geomembrane received in 2012 for the Phase 5 Berm Modification. <br />Conformance testing for the 80 -mil double -sided textured LLDPE geomembrane used to <br />construct the Phase 5 Berm Modification liner system met specifications. Conformance test <br />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 the panel layout record drawing. <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 Environment & Infrastructure, Inc. <br />2000 S. Colorado Blvd 2 -1000 <br />Denver, CO 80222 <br />Tel 303 - 935 -6505 <br />Fax 303 - 935 -6575 www.amec.com 20 <br />