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amen <br />Earth & Environmental <br />D) Slope Contouring <br />1) VLF <br />Slope contouring was performed between stations E8+00 (+/-) and E10+00 (+/-), <br />approximately, 100 to 150 feet right of centerline and between station E16+00 (+/-) and <br />E20+00 (+/-), approximately 100 to 150 feet right of centerline. Slope contouring was <br />performed using a CAT D-9 dozer. Material generated as the cut progressed was pushed down <br />the slope. <br />E) 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 />F) Cut to Fill <br />1) VLF <br />A CAT 385 excavator and a John Deere 850 excavator were used to excavate structural fill <br />material from the following areas: between stations E 15+00 (+/-) and E 18+00 (+/-), <br />approximately 20 feet left of centerline to 100 feet right of centerline; between stations F1+50 <br />(+/-) and F7+00 (+/-), approximately 100 to 150 feet right of centerline; between stations <br />G5+00 (+/-) and G7+00 (+/-), approximately 250 to 300 feet right of centerline; and between <br />stations H11+00 (+/-) and H13+00 (+/-), approximately 0 to 50 feet right of centerline. The <br />structural fill material was loaded into CAT 777 haul trucks. <br />Prior to structural fill placement existing fill areas were ripped and frost was allowed to thaw <br />or was removed. Existing fill temperature were monitored and found to be above 32°F before <br />fill placement. An AMEC representative monitored ambient temperatures on an hourly basis <br />during fill placement. Fill temperatures were monitored during ambient temperatures below <br />32°F and averaged 33°F to 44°F. On average, fill preparations were performed for one to one <br />and a half hours before fill temperatures were within project specification. <br />Structural fill was placed in the following areas: between stations B 1+75 (+/-) and B7+00 (+/-), <br />approximately 100 feet left of centerline to 100 feet right of centerline; between stations C0+00 <br />(+/-) and C4+00 (+/-) approximately 50 left of centerline to 50 right of centerline; between <br />stations D2+00 (+/-) and D4+75 (+/-), approximately 50 feet left of centerline to 50 feet right <br />of centerline; and between stations F0+50 (+/-) and F7+00 (+/-), approximately 100 feet left of <br />centerline to 100 feet right of centerline. Structural fill was placed in 18" to 24" lifts using <br />various CAT dozers. Each lift was moisture conditioned using a CAT 773 water truck (when <br />necessary) and compacted using a 10-ton vibratory smooth drum compactor, passing over the <br />entire fill surface at least 4 times (method compaction technique is applicable). Ambient and <br />fill temperatures were monitored and recorded during fill placement. <br />Blast pattern drilling was performed between stations E8+00 (+/-) and El 1+00 (+/-), <br />approximately 50 to 100 feet right of centerline and between station F2+00 (+/-) and F4+00 <br />(+/-), approximately 50 to 100 feet right of centerline using three track mounted drill rigs. <br />VLF Weekly Report WE 01.09.10.D.doc