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III) <br />A) <br />IV)VLF <br />A) <br />B) <br />C) <br />ame <br />Material Processing <br />Drain Cover Fill Process Area <br />Processing of Drain Cover Fill (DCF) continued at the DCF process area using a dozer. <br />200 <br />was <br />no <br />35D <br />+ / -) <br />the <br />Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />DCF Process <br />30,958 <br />204,530 <br />Total <br />30,958 <br />204,530 <br />Geosynthetics <br />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 180,676 square feet of 80mil LLDPE was deployed using a John Deere <br />excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade <br />inspected and approved by AMEC and Lonestar representatives prior to geomembrane <br />deployment (see Figure 3). Approximately 8,920 linear feet of seam was fusion welded using <br />two fusion welding machine /welding technician combinations. Twenty -two destructive test <br />samples were marked during fusion seaming. All destructive tests performed were within <br />project specifications. Non - destructive testing was performed for fusion welded seams. Repairs <br />were performed using the extrusion welding method for all marked defects. Vacuum testing <br />was performed for all extrusion welded seams and repairs. <br />During the Cresson blasts, an AMEC field representative observed the geomembrane and <br />damage was found. <br />Geomembrane Exposure <br />1) VLF <br />Exposure of previously installed geomembrane between stations E14 +00 ( + / -) and El 8+00 <br />( + / -) and between stations J5 +00 ( + / -) and J9 +00 ( + / -) was performed using a John Deere <br />excavator and laborers. An AMEC field representative observed the geomembrane exposure <br />constantly. <br />Anchor Trench <br />1) VLF <br />Temporary anchor trench excavation continued between stations J9 +00 ( + / -) and J13 +00 ( <br />using a John Deere 35D excavator and one laborer. The anchor trench was inspected by an <br />AMEC field representative and found to be constructed in accordance with design drawings <br />and project specifications. <br />Anchor trench backfill was performed between stations J3 +00 ( + / -) and J9 +00 ( + / -), near <br />centerline using a John Deere 35D excavator, a vibratory plate compactor, two jumping jack <br />compactors, and laborers. This was performed to replace any saturated SLF removed from <br />trench. An AMEC field representative observed the backfill and it was found to be constructed <br />in accordance with design drawings and project specifications. <br />VLF Weekly Report WE 07.16.2011 <br />