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Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />DCF Process <br />5,291 <br />209,821 <br />Total <br />5,291 <br />209,821 <br />II) Storm Water Management <br />A) Best Management Practices <br />Best Management Practices are being observed throughout the Phase 5 VLF Project. <br />III) Material Processing <br />A) Drain Cover Fill Process Area <br />Processing of Drain Cover Fill (DCF) continued at the DCF process area using a dozer. <br />amec <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 145,061 square feet of 80mil LLDPE was deployed using a Komatsu 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 8,066 linear feet of seam was fusion welded using <br />two fusion welding machine /welding technician combinations. Seventeen destructive test <br />samples were marked during fusion seaming. Approximately 97 linear feet of seam was <br />extrusion welded using one extrusion welding machine. One destructive test sample was <br />marked during extrusion seaming. All destructive tests performed were within project <br />specifications. Non - destructive testing was performed for fusion welded seams. Repairs were <br />performed using the extrusion welding method for all marked defects. Vacuum testing was <br />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 found. <br />B) Geomembrane Exposure <br />1) VLF <br />Exposure of previously installed geomembrane between stations Eli +50 ( + / -) and E21 +50 <br />( + / -) was performed using a John Deere 35D excavator and laborers. An AMEC field <br />representative observed the geomembrane exposure constantly. <br />C) Anchor Trench <br />1) VLF <br />Temporary anchor trench excavation continued between stations H8 +00 ( + / -) and H12 +00 ( +/- <br />) and between stations J12 +00 ( + / -) and J14 +00 ( + / -) using a John Deere 35D excavator and <br />one laborer. The anchor trench was inspected by an AMEC field representative and found to be <br />constructed in accordance with design drawings and project specifications. <br />VLF Weekly Report WE 07.23.2011 <br />