Laserfiche WebLink
amecO <br />Earth & Environmental <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 C5+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 />Soil liner fill (SLF) placement continued in the areas shown on Figure 3. Subgrade was <br />approved and moisturized prior to placement using a tandem-axle water truck. Placement was <br />performed using two CAT D-6 dozers, and one CAT skid steer loader in a one-foot compacted <br />lift. Moisture conditioning was performed using a tandem-axle water truck and compaction <br />was performed using a 10-ton vibratory smooth drum compactor. Nuclear density testing, <br />moisture verification, and depth checks were performed in the geomembrane deployment areas <br />throughout the week. All test results were within project specifications and all test locations <br />were surveyed by Ames. <br />The area between stations F8+00 (+/-) and F12+50 (+/-), approximately 0 to 40 feet left of <br />centerline was reworked using a skid steer loader, a tandem axle water truck, and vibratory <br />plate compactor. This includes the backfilled PSSA anchor trench. Nuclear density testing, <br />moisture verification, and depth checks were performed in area. All test results were within <br />project 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 />VLF Weekly Report WE 07.17.10.1)