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Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />DCF Process <br />0 <br />121,223 <br />Total <br />0 <br />121,223 <br />E) High Volume Solution Collection System <br />1) High Volume Solution Collection Piping <br />No placement performed during the week. <br />2) Drain Cover Fill (DCF) <br />No work performed during the week. <br />II) Storm Water Management <br />A) Best Management Practices <br />Best Management Practices are being observed throughout the Phase 5 VLF Project. <br />III) Material Processing <br />A) Drain Cover Fill Process Area <br />No Drain Cover Fill (DCF) was processed during the week. <br />one <br />D) Soil Liner Fill <br />1) VLF <br />Soil liner fill (SLF) placement continued in the areas shown on Figure 2. Subgrade was <br />approved and moisturized prior to placement using a tandem -axle water truck. The SLF <br />material was moisture conditioned at the temporary stockpile and loaded into 40 -ton <br />articulating haul trucks using a John Deere 744 front -end loader. Placement was performed <br />using a CAT D -9 LGP dozer, a CAT D -8 LGP dozer, two CAT D -6 LGP dozers, and a skid <br />steer loader in a one -foot compacted lift. Moisture conditioning of SLF material was performed <br />using a tandem -axle water truck and compaction was achieved using a 10 -ton vibratory smooth <br />drum compactor. Nuclear density testing, moisture verification, and depth check testing was <br />performed with results within project specifications. Test locations were surveyed by Ames. <br />SLF placement between bench H and J was performed to build an access road to planned SLF <br />placement areas using one CAT D -8 dozer. This SLF will be reworked prior to geomembrane <br />deployment in the area. <br />F) Leak Detection Trench <br />1) VLF <br />A portion of the leak detection system was installed between stations H10 +50 ( + / -) to H11 +00 <br />( + / -) approximately 150 left of centerline. The 1'xl' trench was excavated using a CAT 312 <br />excavator. 40mil HDPE geomembrane and 12oz /ft geotextile were placed in the trench. <br />Three -inch CPe pipe was then placed over the geotextile. Approved leak detection fill (LDF) <br />was placed in the trench using a CAT 950 front -end loader and laborers. The geotextile was <br />wrapped and overlapped, encapsulating the LDF and 3" CPe pipe. SLF material was then <br />placed over the trench. Leak detection trench construction was observed and inspected by an <br />AMEC field representative and found to be constructed in accordance with design drawing and <br />project specifications. <br />VLF Weekly Report WE 06.18.2011 <br />