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amecl* <br />placement area using CAT 740 haul trucks. The DCF was placed in a 2-foot lift using a two <br />CAT D-6 LGP dozers and a CAT D-8 dozer except where haul routes were established. Haul <br />route consisted of five-foot lifts to be spread into 2-foot lifts later. Laborers were present at all <br />times during placement holding the high volume collection piping in place, removing <br />debris/sandbags, and assisting the dozer operator with lift thickness. All DCF was placed on <br />previously approved primary geomembrane. AMEC field representatives monitored the DCF <br />placement constantly. <br />Backi-illing of the high volume solution collection risers and manifold was performed using a <br />CAT D-6 LGP dozer and a Komatsu 300 excavator. DCF material was pushed to the Komatsu <br />300 excavator and cast onto the risers. This was performed to allow for the continued <br />construction of the risers. <br />3) Ore Placement <br />Ore placement near the high volume solution collection continued using a CAT D-8 dozer. The <br />ore was hauled from the leading edge of the Phase IV heap placement using 40-ton articulating <br />haul trucks loaded by a CAT 385 excavator. <br />II) Storm Water Management <br />A) Best Management Practices <br />Best Management Practices are being observed throughout the VLF Phase 5 Project. <br />III) Material Processing <br />A) Drain Cover Fill Process Area <br />Drain Cover Fill (DCF) was processed during the week. <br />Location This Week Cumulative Comments <br /> (tons) (tons) <br />DCF Process 16,517 173,078 <br />Total 16,517 173,078 <br />IV)VLF Geosynthetics <br />A) Geomembrane Installation <br />1) VLF <br />Geomembrane installation within the Phase 5 VLF continued performing deployment, <br />seaming, and repair/QC activities. Geomembrane installation was performed in the area shown <br />on Figures 3a and 3b. Approximately 144,946 square feet of primary 80mil LLDPE and <br />primary 100mi1 LLDPE was deployed using a John Deere 200 excavator and a John Deere 544 <br />front-end loader with spreader-bar attachments. Subgrade was inspected and approved by <br />AMEC and Lone Star representatives prior to geomembrane deployment (see Figures 3a and <br />3b). Approximately 8,752 linear feet of seam was fusion welded using to two fusion welding <br />machines. Nineteen destructive test samples were marked during fusion seaming. All <br />destructive tests performed were within project specifications. Non-destructive testing was <br />performed for fusion welded seams. Repairs were performed using the extrusion welding <br />VLF Weekly Report WE 10.09.10.13