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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 Al2 +50 ( + / -) and A16 +00 ( + / -), near <br />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 />D) Geomembrane Acceptance <br />1) VLF <br />No work performed during the week. <br />CQA ACTIVITIES: <br />SUMMARY: <br />amec <br />deployment (see Figure 3). Approximately 4,364 linear feet of seam was fusion welded using <br />two fusion welding machine /welding technician combinations. Ten destructive test samples <br />were marked during fusion seaming. Approximately 523 linear feet of seam was extrusion <br />welded using two extrusion welding machine /welding technician combinations. Three <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 />The CQA activities performed consisted of observing, documenting and recording the construction <br />activities of the contractor. <br />AMEC observed snow removal within the Phase 5 VLF. <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 />AMEC observed, logged data, and assisted in the installation of geomembrane within the Phase 5 VLF. <br />AMEC observed the excavation of anchor trenches within the Phase 5 VLF. <br />AMEC observed the installation of the high volume solution collection system within the Phase 5 VLF. <br />VLF Weekly Report WE 10.15.2011 <br />