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amec* <br />compactor, passing over the entire fill surface at least 4 times (method compaction technique <br />was applicable). <br />D) Soil Liner Fill <br />1) VLF <br />Existing Soil Liner Fill between stations B 12+00 (+/-) and B 14+00 (+/-), approximately 0 to <br />200 feet right of centerline was moisture conditioned, re-worked and re-graded. Moisture <br />conditioning was performed using a tandem-axel water truck and compaction was performed <br />using a 10-ton vibratory smooth drum compactor. Density and depth checks were performed <br />on the SLF material. One record sample was collected from the SLF material. (see Figure 2 for <br />previously placed soil liner fill) <br />E) Low Volume Solution Collection System <br />1) Low Volume Solution Collection Piping <br />Placement of the low volume solution collection system continued at the LVCSF placement <br />area shown on Figures 5a and 5b, advancing in front of the placement. Four-inch CPeP was <br />placed and sandbagged in accordance with design drawings, constructing the mainline and the <br />tertiary lines. The secondary geomembrane in the area was accepted prior to pipe placement. <br />Installation of the low volume solution collection risers was performed placing the pipe in the <br />Phase 5 VLF. Construction of the low volume solution collection risers began, fusing three <br />sections of 18" HDPE pipe. Perforations were then drilled in each section from the end cap to <br />12' up the pipe. A Komatsu 300 excavator and a CAT 312 excavator were used to place the <br />three 18" HDPE pipes on temporary sand bags to protect the secondary geomembrane. A rub <br />sheet was also installed below the bottom 10' of the risers. The pipes were positioned in <br />accordance with design drawing and the sand bags were removed from beneath the risers. <br />LVSCF was then placed over the risers covering them with three feet of cover. LVSCF <br />placement for this task is included and shown on Figure 5b. The open ends of the pipes were <br />covered at all times and remain covered. An AMEC field representative observed and <br />inspected the low volume solution collection riser construction. Installation of the risers was <br />found to be performed in accordance with design drawings and project specifications. <br />2) Low Volume Solution Collection Fill (LVSCF) <br />Low volume solution collection fill (LVSCF) placement within the Phase 5 VLF continued. <br />LVSCF was placed in the area show on Figures 5a and 5b. The LVSCF was hauled from the <br />processing area to the placement area using CAT 740 haul trucks loaded by a CAT 988 front- <br />end loader. The LVSCF was placed in a 3-foot lift using two CAT D-6 LGP dozers, a CAT D- <br />7 LGP dozer, a CAT D-8 LGP dozer, and a CAT D-8 narrow pad dozer (haul route <br />construction only) except where haul routes were established. Haul routes consisted of five- <br />foot lifts, to be spread into 3-foot lifts later. Laborers were present at all times during <br />placement holding the low volume collection piping in place, removing debris/sandbags, and <br />assisting the dozer operator with lift thickness. All LVSCF was placed on previously approved <br />secondary geomembrane. AMEC field representatives monitored the LVSCF placement <br />constantly. <br />VLF Weekly Report WE 09.11.10.1)