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ame <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 on <br />Figure 3. Approximately 296,348 square feet of 80mil LLDPE was deployed using a Komatsu <br />200 excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade <br />was inspected and approved by AMEC and Lonestar representatives prior to geomembrane <br />deployment (see Figure 3). Approximately 14,192 linear feet of seam was fusion welded using <br />four fusion welding machine /welding technician combinations. Twenty -nine destructive test <br />samples were marked during fusion seaming. Approximately 868 linear feet of seam was <br />extrusion welded using three extrusion welding machine /welding technician combinations. Six <br />destructive test samples were marked during extrusion seaming. All destructive tests performed <br />were within project specifications. Non - destructive testing was performed for fusion welded <br />seams. Repairs were performed using the extrusion welding method for all marked defects. <br />Vacuum testing was performed for all extrusion welded seams and repairs. <br />During the Cresson blast, an AMEC field representative observed the geomembrane and no <br />damage was noted. <br />B) Geomembrane Exposure <br />1) VLF <br />Exposure of previously installed geomembrane between stations H10 +00 ( + / -) and H16 +00 ( + / -) <br />was performed using a John Deere 35D excavator and laborers. An AMEC field representative <br />observed the geomembrane exposure constantly. <br />C) Anchor Trench <br />1) VLF <br />Anchor trench excavation continued between stations A30 +00 ( + / -) and A37 +00 ( + / -), and <br />between stations J14 +00 ( + / -) and J20 +00 ( + / -) using a John Deere 35D excavator and one laborer. <br />The anchor trench was inspected by an AMEC field representative and found to be constructed in <br />accordance with design drawings and project specifications. <br />Anchor trench backfill was performed between stations A31 +00 ( + / -) and A35 +00 ( + / -), near <br />centerline, between stations J14 +00 ( + / -) and J17 +00 ( + / -), near centerline, and between stations <br />H13 +00 ( + / -) and H16 +00 ( + / -), near centerline, using a John Deere 35D excavator, a vibratory <br />plate compactor and laborers. An AMEC field representative observed the backfill and it was <br />found to be constructed in accordance with design drawings and project specifications. <br />D) Geomembrane Acceptance <br />1) VLF <br />No work performed during the shift. Previous geomembrane acceptance is shown on Figure 4. <br />VLF Weekly Report WE 09.03.2011 <br />