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Location <br />This Week <br />(tons) <br />Cumulative <br />(tons) <br />Comments <br />DCF Process <br />8,389 <br />264,557 <br />Total <br />8,389 <br />264,557 <br />ame <br />H) 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 />Processing of Drain Cover Fill (DCF) continued at the DCF process area using a dozer. <br />D) High Volume Solution Collection System <br />1) High Volume Solution Collection Piping <br />Placement of the high volume collection system continued at the DCF placement area shown <br />on Figure 5, advancing in front of the placement. CPeP was placed and sandbagged in <br />accordance with design drawings and project specifications. <br />2) Drain Cover Fill (DCF) <br />Drain cover fill (DCF) placement within the Phase 5 VLF continued. DCF was placed in the <br />areas shown on Figure 5. The DCF was hauled from the processing area to the placement area <br />using 40 -ton articulating haul trucks. The DCF was placed in a 2 -foot lift using various CAT <br />dozers except where haul routes were established. Haul route consisted of five -foot lifts to be <br />spread into 2 -foot lifts later. Laborers were present at all times during placement holding the <br />high volume collection piping in place, removing debris /sandbags, and assisting the dozer <br />operator with lift thickness. All DCF was placed on previously approved primary <br />geomembrane. AMEC field representatives monitored the DCF placement constantly. <br />E) Leak Detection Trench <br />1) VLF <br />A portion of the leak detection system was installed between stations E20 +50 ( + / -) to E23 +90 <br />( + / -) approximately 150 left of centerline, between stations H0 +50 ( + / -) to H2 +00 ( + / -) <br />approximately 150 left of centerline and between stations J5 +50 ( + / -) and J10 +00 ( + / -), <br />approximately 250 feet left of centerline. The 1'x1' 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 skid steer loader and laborers. The geotextile was wrapped and <br />overlapped, encapsulating the LDF and 3" CPe pipe. SLF material was then placed over the <br />trench. Leak detection trench construction was observed and inspected by an AMEC field <br />representative and found to be constructed in accordance with design drawing and project <br />specifications. <br />VLF Weekly Report WE 08.13.2011 <br />