2011-08-26_REPORT - M1980244 ‎(25)‎

• Permit No: M1980244
• IBM Index Class Name: Report
• Doc Date: 8/26/2011
• Doc Name: Final Report QA 2011 Phase 5 VLF Ore Storage Aug 26, 2011 vol 2 of 3 DOCUMENT 3 OF 3
• From: CC&V
• To: DRMS
• Media Type: D
• Archive: No

amec'9
F) High Volume Solution Collection System
1) High Volume Solution Collection Piping
No placement performed during the week.
2) Drain Cover Fill (DCF)
No placement performed during the week (see Figure 6 for previous DCF placement).
II) Storm Water Management
A) Best Management Practices
Best Management Practices are being observed throughout the VLF Phase 5 Project.
III) Material Processing
A) Drain Cover Fill Process Area
No Drain Cover Fill (DCF) was processed during the week.
Location
This Week
Cumulative
Comments
(tons)
(tons)
DCF Process
0
121,223
Total
0
121,223
IV) VLF Geosynthetics
A) Geomembrane Installation
1) VLF
Geomembrane installation within the Phase 5 VLF continued performing deployment,
seaming, and repair /QC activities. Geomembrane installation was performed in the area shown
on Figures 3a, 3b, and 3c. Approximately 139,201 square feet of primary 80mi1 LLDPE,
primary 100mi1 LLDPE and secondary 100mil LLDPE was deployed using a John Deere 200
excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade was
inspected and approved by AMEC and Lone Star representatives prior to geomembrane
deployment (see Figure 3a, 3b, and 3c). Approximately 7,375 linear feet of seam was fusion
welded using three fusion welding machines. Seventeen destructive test samples were marked
during fusion seaming. Approximately 674 linear feet of seam was extrusion welded using two
extrusion welding machines. Four destructive test sample was marked during extrusion
seaming. All destructive tests performed were within project specifications. Non - destructive
testing was performed for fusion welded seams. Repairs were performed using the extrusion
welding method for all marked defects. Vacuum testing was performed for all extrusion
welded seams and repairs.
B) Anchor Trench
1) VLF
Anchor trench backiill was performed between stations B 12 +00 ( + / -) and B 14 +00 ( + / -) using a
John Deere 35D excavator and laborers. An AMEC representative observed and inspected the
anchor trench backiill. The trench was found to be backfilled in accordance with design
drawings and project specifications.
VLF Weekly Report WE 09.11.10.D