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Arl& <br />ame <br />Earth & Environmental <br />D) Overburden to Stockpile <br />1) VLF <br />No work performed during the week. <br />E) Cut to Fill <br />1) VLF <br />A CAT 385 excavator was used to excavate structural fill material between stations El 1+00 <br />(+/-) and E17+00 (+/-), approximately 50 to 100 feet right of centerline. The structural fill <br />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 60 feet <br />left of centerline to 60 feet right of centerline and between stations E8+00 (+/-) and E 10+00 <br />(+/-), approximately 50 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). <br />Blast pattern drilling was performed between stations E9+00 (+/-) and E11+00 (+/-), <br />approximately 25 to 100 feet right of centerline. Blasting was performed on Monday <br />(5/17/2010). Blasting was not performed Tuesday (5/18/2010), Wednesday (5/19/2010), <br />Thursday (5/20/2010), Friday (5/21/2010), and Saturday (5/22/2010). <br />F) Soil Liner Fill <br />1) VLF <br />Soil liner fill (SLF) placement began between stations B2+00 (+/-) and B 10+00 (+/-), <br />approximately 0 to 600 feet right of centerline, hauling from the East Cresson Clay borrow. <br />Subgrade was approved and moisturized prior to placement using a tandem-axel water truck. <br />The SLF placement area is shown in Figure 3. Placement was performed using a John Deere <br />729 dozer, two CAT D-6 dozers, and a CAT skid steer loader in a one-foot compacted lift. <br />Compaction of the SLF was performed using a 10-ton vibratory smooth drum compactor. <br />Nuclear density testing, moisture verification, and depth checks were performed in the <br />geomembrane deployment areas throughout the week. All test results were within project <br />specifications and all test locations were surveyed by Ames. <br />G) PSSA Ore Slope Construction <br />Construction of the remaining portion of the PSSA ore slope continued between stations G0+00 <br />(+/-) and G4+00 (+/-), approximately 0 to 225 feet left of centerline using a CAT D-6 LGP dozer <br />and a CAT 279 skid steer loader. Existing ore was pushed over the previously certified secondary <br />geomembrane, constructing the toe of the slope. Geotextile was placed over the geomembrane <br />within three feet of the slope toe. An AMEC field representative observed slope construction <br />constantly. A 10-ton smooth drum roller was used to compact the surface of the ore slope 2' or <br />mare above the geomembrane and a plate compactor was used to compact the remaining portion of <br />the slope. <br />VLF Weekly Report WE 05.22.10.1)