2012-10-17_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 10/17/2012
• Doc Name: CQA REPORT 10/13/2012
• From: CC&V
• To: DRMS
• Type & Sequence: AM10
• Email Name: TC1
• Media Type: D
• Archive: No

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B) Geomembrane Installation
Geomembrane installation continued in the area shown on Figure 4 performing deployment,
seaming, and repair /QC activities. Approximately 179,033 square feet of 80mil LLDPE was
deployed using a John Deere 544 front -end loader with spreader -bar attachments and a John
Deere 200 skid -steer loader. Subgrade was inspected and approved by AMEC and Lonestar
representatives prior to geomembrane deployment. Approximately 9,315 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 758 linear feet of
seam was extrusion welded using three extrusion welding machine /welding technician
combinations. 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.
C) Anchor Trench
Approximately 650 feet of anchor trench was excavated using a CAT 304 and John Deere 120
excavator and laborers. 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 using a CAT 304 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.
D) Geomembrane Exposure
No work performed during the week.
E) Geomembrane Acceptance
Primary 80mil geomembrane shown on Figure 5 (P39 -P101) was inspected by AMEC and
Lonestar representatives and found to be installed within project specifications and acceptable for
continued construction activities.
III) Storm Water Management
A) Best Management Practices (BMP)
Best Management Practices are being observed throughout the Mill Site Earthworks project.
Straw bales were installed on the slope of the Mill Platform fill to be used as erosion controls.
CQA ACTIVITIES:
SUMMARY:
The CQA activities performed consisted of observing, documenting and recording the construction
activities of the contractor.
AMEC observed and approved subgrade preparation for SLF placement within the Mill Site Earthworks
project.
AMEC observed and assisted with SLF placement within the Mill Site Earthworks project, including
ambient and fill temperature monitoring when necessary.
AMEC inspected and approved subgrade prior to geomembrane deployment.
MEW Weekly Report WE 10. 13.2012