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

ameO
Finishing of drain cover fill was performed using two CAT D -6 dozer, a CAT D -8 dozer, and
laborers.
II) Storm Water Management
A) Best Management Practices
Best Management Practices are being observed throughout the VLF Phase 5 Project. Ames placed
hay bales between stations E8 +00 and E23 +75 ( + / -) for temporary erosion control.
III) Material Processing
A) Drain Cover Fill Process Area
No Drain Cover Fill (DCF) was processed during the week.
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 in Figure 3.
Approximately 283,831 square feet of 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 3). Approximately 12,903 linear feet of seam was fusion welded using two
fusion welding machines. Twenty -six destructive test samples were marked during fusion seaming.
Non - destructive testing was performed for fusion welded seams. Approximately 1,703 linear feet
of seam was extrusion welded using one extrusion welding machine. Five destructive test samples
were marked during extrusion seaming. All destructive tests performed were within project
specifications. 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
PSSA anchor trench excavation continued between stations E6 +50 ( + / -) and E10 +50 ( + / -) as well
as between G14 +00 ( + / -) and G28 +00 ( + / -) using a CAT 312 excavator and one laborer. The
anchor trench was inspected by an AMEC field representative and found to be constructed in
accordance with design drawings and project specifications.
C) Geomembrane Acceptance
1) VLF
Secondary 100mi1 geomembrane (S -561 thru S -585, S -608 thru S -621, and S -638 thru S678)
shown on Figure 4 was inspected by AMEC and Lone Star representatives and found to be
installed within project specifications and acceptable for continued construction activities.
VLF Weekly Report WE 08.28.10.D
This Week
Cumulative
Location
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 in Figure 3.
Approximately 283,831 square feet of 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 3). Approximately 12,903 linear feet of seam was fusion welded using two
fusion welding machines. Twenty -six destructive test samples were marked during fusion seaming.
Non - destructive testing was performed for fusion welded seams. Approximately 1,703 linear feet
of seam was extrusion welded using one extrusion welding machine. Five destructive test samples
were marked during extrusion seaming. All destructive tests performed were within project
specifications. 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
PSSA anchor trench excavation continued between stations E6 +50 ( + / -) and E10 +50 ( + / -) as well
as between G14 +00 ( + / -) and G28 +00 ( + / -) using a CAT 312 excavator and one laborer. The
anchor trench was inspected by an AMEC field representative and found to be constructed in
accordance with design drawings and project specifications.
C) Geomembrane Acceptance
1) VLF
Secondary 100mi1 geomembrane (S -561 thru S -585, S -608 thru S -621, and S -638 thru S678)
shown on Figure 4 was inspected by AMEC and Lone Star representatives and found to be
installed within project specifications and acceptable for continued construction activities.
VLF Weekly Report WE 08.28.10.D