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• <br />amec <br />Earth & Environmental <br />C) Overburden <br />C) Overburden to Stockpile <br />1) VLF <br />Oversize rock within the Phase 5 VLF fill area was removed from fill/cut areas and hauled to <br />the overburden stockpile area east of the east perimeter road near stations A29 +00 ( + / -) to <br />A32 +00 ( + / -) right of centerline. <br />D) Cut to Fill <br />1) VLF <br />Structural fill placement was performed between stations E16 +00 ( + / -) and E23 +00 ( + / -), <br />approximately 0 to 200 feet right of centerline and between stations C2 +00 ( + / -) and C7 +50 <br />( + /- ),approximately 0 to 100 feet right of centerline. Cut /fill operations were performed using <br />various CAT dozers and excavators. Structural fill was placed in 18" to 24" lifts. Each lift was <br />moisture conditioned using a CAT 773 water truck (when necessary) and compacted using a <br />10 -ton vibratory smooth drum compactor, passing over the entire fill surface at least 4 times <br />(method compaction technique was applicable). <br />E) Soil Liner Fill <br />1) VLF <br />The area between stations F0 +00 ( + / -) and F10 +00 ( + / -), approximately 0 to 40 feet left of <br />centerline was reworked using a skid steer loader, a tandem axle water truck, and vibratory plate <br />compactor. This includes the backfilled PSSA anchor trench. Nuclear density testing, moisture <br />verification, and depth checks were performed in area. All test results were within project <br />specifications and all test locations were surveyed by Ames. <br />F) PSSA Ore Slope Construction <br />1) VLF <br />No work performed during the week. <br />G) Low Volume Solution Collection System <br />1) Low Volume Solution Collection Piping <br />No work performed during the week. <br />2) Low Volume Solution Collection Fill (LVSCF) <br />Finishing of the previously placed LVSCF surface was performed using a CAT D -6 LGP dozer <br />and a CAT skid steer loader. LVSCF placement was not performed during the week. <br />H) Material Processing <br />1) East Cresson Clay Borrow Area <br />Processing of SLF material continued this week. A CAT 320 excavator, a CAT 330 excavator, <br />a CAT 950 front -end loader, and tandem -axel haul trucks were used to excavate, haul, and <br />process the material. <br />VLF Weekly Report WE 07.10.10.D <br />