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amec <br />Earth & Environmental <br />stations G4+00 (+/-) and G7+00 (+/-), approximately 0 to 100 feet left of centerline; between <br />stations G24+00 (+/-) and G30+00 (+/-), approximately 0 to 100 feet left of centerline; <br />between stations H4+00 (+/-) and H12+00 (+/-), approximately 50 and 150 feet left of <br />centerline; and between stations K0+00 (+/-) and K8+00 (+/-), approximately 100 feet left of <br />centerline to 200 feet right of centerline. Slope contouring was performed using various CAT <br />dozers and various CAT excavators. Material generated as the cut progressed was pushed <br />down the slope. <br />D) Overburden to Stockpile <br />1) VLF <br />Oversize rock within the Phase 5 VLF fill area was removed from fill areas and hauled to the <br />overburden stockpile area east of the east perimeter road near stations A28+00 (+/-) to A36+00 <br />E) Cut to Fill <br />1) VLF <br />A CAT 385 excavator was used to excavate structural fill material from between stations <br />E12+00 (+/-) and E14+50 (+/-), approximately 75 to 100 feet left of centerline. The structural <br />fill material was loaded into CAT 777 haul trucks and hauled to fill areas. <br />Structural fill was placed between stations C0+00 (+/-) and C7+00 (+/-), approximately 75 feet <br />left of centerline to 75 feet right of centerline and between stations F5+00 (+/-) and F10+00 <br />(+/-), approximately 100 feet left of centerline to 20 feet right of centerline. Structural fill was <br />placed in 18" to 24" lifts using various CAT dozers. Each lift was moisture conditioned using a <br />CAT 773 water truck (when necessary) and compacted using a 10-ton vibratory smooth drum <br />compactor, passing over the entire fill surface at least 4 times (method compaction technique <br />was applicable). Ambient temperatures were monitored and fill placement was not performed <br />during ambient temperatures below 32°F. <br />Blast pattern drilling was performed between stations E7+50 (+/-) and E10+50 (+/-), <br />approximately 75 to 200 feet right of centerline. Blasting was performed on Monday <br />(5/3/2010), Tuesday (5/4/2010), Wednesday (5/5/2010), and Friday (5/7/2010). No blasting <br />was performed Thursday (5/6/2010) and Saturday (5/8/2010). <br />F) Soil Liner Fill <br />1) VLF <br />Soil liner fill (SLF) placement began between stations B0+50 (+/-) and B13+00 (+/-), <br />approximately 0 to 550 feet right of centerline, hauling from the East Cresson Clay borrow. <br />Subgrade was approved and moisturized prior to placement. The area included in placement is <br />shown in Attachment B. Placement was performed using a John Deere 729 dozer, two CAT D- <br />6 dozers, and a CAT skid steer loader in a one-foot three-inch (+/-) loose lift. Moisture <br />conditioning of subgrade prior to placement and of SLF was performed using a tandem-axel <br />water truck. Compaction of the material was not performed during the week. Moisture content <br />and placement of the material was observed by an AMEC field representative. Ames was <br />informed of current moisture contents and the importance of maintaining the moisture in the <br />SLF. Ames stated they would keep the moisture in the SLF until geomembrane is deployed. <br />No SLF material was placed during ambient temperatures below 32°F. <br />VLF Weekly Report WE 05.08.10.13