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ame0 <br />IV)VLF Geosynthetics <br />A) Geomembrane Installation <br />1) VLF <br />Geomembrane installation within the Phase 5 VLF resumed performing deployment, seaming, <br />and repair /QC activities. Geomembrane installation was performed in the area shown in Figure <br />3. Approximately 182,285 square feet of 80mil LLDPE was deployed using a John Deere 200 <br />excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade was <br />inspected and approved by AMEC and Lonestar representatives prior to geomembrane <br />deployment (see Figure 3). Approximately 8,720 linear feet of seam was fusion welded using <br />four fusion welding machine. Twenty -two destructive test samples were marked during fusion <br />seaming. All destructive tests performed were within project specifications. Non - destructive <br />testing was performed for fusion welded seams. Repairs were performed using the extrusion <br />welding method for all marked defects. Vacuum testing was performed for all extrusion <br />welded seams and repairs. <br />During the Cresson blasts, an AMEC field representative observed the geomembrane and no <br />damage was found. <br />B) Geomembrane Exposure <br />1) VLF <br />Exposure of previously installed geomembrane near station H32 +00 ( + / -) was performed using <br />a John Deere 35D excavator and laborers. An AMEC field representative observed the <br />geomembrane exposure constantly. <br />C) Anchor Trench <br />1) VLF <br />Temporary anchor trench excavation continued between stations J3 +00 ( + / -) and J7 +50 ( + / -) using <br />a John Deere 35D excavator and one laborer. The anchor trench was inspected by an AMEC field <br />representative and found to be constructed in accordance with design drawings and project <br />specifications. <br />Anchor trench backfill was performed between stations J3 +00 ( + / -) and J7 +00 ( + / -) using a skid <br />steer loader and laborers. An AMEC representative observed and inspected the anchor trench <br />backfill. The trench was found to be backfilled in accordance with design drawings and project <br />specifications. <br />D) Geomembrane Acceptance <br />1) VLF <br />No geomembrane was accepted during the week. Previous geomembrane acceptance <br />performed is shown on Figure 4. <br />VLF Weekly Report WE 07.02.2011 <br />