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CQA ACTIVITIES: <br />SUMMARY: <br />amecs <br />deployment (see Figure 3). Approximately 5,686 linear feet of seam was fusion welded using <br />three fusion welding machine /welding technician combinations. Eleven destructive test <br />samples were marked during fusion seaming. Approximately 150 linear feet of seam was <br />extrusion welded using one extrusion welding machine /welding technician combinations. Two <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 blasts, an AMEC field representative observed the geomembrane and no <br />damage was noted. <br />B) Geomembrane Exposure <br />1) VLF <br />No work performed during the week. <br />C) Anchor Trench <br />1) VLF <br />Anchor trench excavation continued between stations A 16 +00 ( + / -) and A20 +00 ( + / -), <br />approximately 350 feet left of centerline, and between stations A8 +30 ( + / -) and Al2 +50 ( + / -), <br />near centerline, using a John Deere 35D excavator and one laborer. The anchor trench was <br />inspected by an AMEC field representative and found to be constructed in accordance with <br />design drawings and project specifications. <br />Anchor trench backfill was performed between stations A16 +00 ( + / -) and A25 +00 ( + / -), <br />approximated 100 to 350 feet left of 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 />Primary 80mil geomembrane (P1106-P1171) shown on Figure 4 was inspected by AMEC and <br />Lonestar representatives and found to be installed within project specifications and acceptable <br />for continued construction activities. <br />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC observed and assisted in the placement of SLF material within the Phase 5 VLF. <br />AMEC inspected and approved subgrade prior to geomembrane deployment within the Phase 5 VLF. <br />VLF Weekly Report WE 10.08.2011 <br />