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3.0 GEOSYNTHETICS INSTALLATION <br />ame0 <br />Geosynthetics installed in the 2011 Phase 5 VLF OSA 3 Portion consisted of geotextile <br />and geomembrane. Twelve- ounce, non -woven geotextile manufactured by TenCate of <br />Pendergrass, Georgia, was used to construct the Leak Detection Trenches of the 2011 <br />Phase 5 VLF OSA 3 Portion. The 2011 Phase 5 VLF liner system included 80 -mil <br />single -sided textured LLDPE geomembrane manufactured by Poly -Flex of Grand Prairie, <br />Texas. <br />3.1 2011 Phase 5 VLF OSA 3rd Portion Liner System <br />Geomembrane installation activities for the 2011 Phase 5 VLF OSA 3 Portion liner system <br />included deployment, seaming, and non - destructive and destructive testing of 80 -mil <br />single -sided textured LLDPE geomembrane (textured side down) to project specifications. <br />Lone Star deployed panels P439 through P567, P636 through P685, and P702 through <br />P1326 as part of the primary liner system in the certified area (approximately 2,954,372 <br />square feet), as shown in Figure 2. <br />Geomembrane was placed on compacted and approved SLF as part of the 2011 Phase 5 <br />VLF OSA 3 Portion. Record Drawing No. 4 of 5 in Appendix A presents the 2011 Phase 5 <br />VLF OSA 3 Portion geomembrane panel layout for the primary geomembrane layer. Ames <br />anchored geomembrane at the limits of the Phase 5 VLF and temporarily along the 10,060 <br />and 10,130 to 10,180 ft elevations an anchor trench a minimum of 3 feet deep by 1 foot <br />wide. <br />3.2 Leak Detection Trench <br />Ames installed 12 -ounce non -woven geotextile and 40 -mil smooth LLDPE geomembrane in <br />the LDT beneath the 2011 Phase 5 VLF OSA 3 Portion to project specifications. Ames <br />installed approximately 15,056 square feet of geotextile and 18,820 square feet of <br />geomembrane for the LDT. To construct the LDT, Ames placed a layer of 40 -mil smooth <br />LLDPE geomembrane in the LDT, and placed geotextile over the geomembrane. After <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.com 14 <br />