2011-10-14_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 10/14/2011
• Doc Name: Weekly Construction Quality Assurance ‎("CQA")‎ Report: Week of 9/25/2011.
• From: CC&V
• To: DRMS
• Type & Sequence: AM9
• Email Name: BMK
• Email Name: TC1
• Media Type: D
• Archive: No

Location
This Week
(tons)
Cumulative
(tons)
Comments
DCF Process
89,452
444,873
Total
89,452
444,873
ame
III) Material Processing
A) Drain Cover Fill Process Area
Processing of Drain Cover Fill (DCF) continued at the DCF process area using a CAT dozer.
IV) VLF Geosynthetics
A) Geomembrane Installation
1) VLF
Geomembrane installation within the Phase 5 VLF resumed performing deployment, seaming,
and repair /QC activities. Geomembrane installation was performed in the area shown on
Figure 3. Approximately 179,241 square feet of 80mil LLDPE was deployed using a Komatsu
200 excavator and a John Deere 544 front -end loader with spreader -bar attachments. Subgrade
was inspected and approved by AMEC and Lonestar representatives prior to geomembrane
deployment (see Figure 3). Approximately 9,518 linear feet of seam was fusion welded using
three fusion welding machine /welding technician combinations. Twenty destructive test
samples were marked during fusion seaming. Approximately 513 linear feet of seam was
extrusion welded using three extrusion welding machine /welding technician combinations.
Four destructive test samples were 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.
During the Cresson blasts, an AMEC field representative observed the geomembrane and no
damage was noted.
B) Geomembrane Exposure
1) VLF
No work performed during the week.
C) Anchor Trench
1) VLF
Anchor trench excavation continued between stations A23 +00 ( + / -) and A26 +00 ( + / -),
approximately 400 feet left of centerline using a John Deere 35D 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.
Anchor trench backfill was performed between stations J21 +00 ( + / -) and J25 +00 ( + / -), near
centerline using a John Deere 35D excavator, a vibratory plate compactor and laborers. An
AMEC field representative observed the backfill and it was found to be constructed in
accordance with design drawings and project specifications.
VLF Weekly Report WE 10.01.2011