2014-12-15_REPORT - M1980244 ‎(9)‎

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 12/15/2014
• Doc Name: Weekly CQA Report: Week ending 12/6/14.
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

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Material hauled from Surge area was placed and compacted as structural fill downslope of Bench
M stations M32+00 to M42+00 in Phase 2. An excavator with a hammer attachment broke up
oversized rock.
Material from Phase 1 slope grading was hauled, placed, and compacted as structural fill
between Bench F stations F24+00 to F28+00 in Phase 1. An excavator with a hammer
attachment broke up oversized rock.
Phase 2 Slope grading occurred above the SGVLF haul road using Cat dozers between stations
74+00 to 78+00. Material from grading activities was pushed to the SGVLF haul road and
transported downslope of stations L4+00 to L7+00 in Phase 1 where it was placed and
compacted as structural fill per project specification.
Slope grading occurred above the SGVLF haul road using Cat dozers between stations 64+00 to
80+00 in Phase 2 and upslope of Bench J stations J8+00 to J10+00 in Phase 1. Material
generated by slope grading activities was stockpiled for removal.
A Cat dozer performed Phase 1 slope grading on the west inboard slope, downslope of stations
C0+00 to C1+00.
Subgrade: (Operations Temporarily Suspended)
Soil Liner Fill (SLF): (Placement Operations Temporarily Suspended)
SLF was hauled from the Cameron Clay Pit area and stockpiled below Bench F between stations
170+00 and F10+00.
Soil liner fill was placed to create an access road along the east Phase 1 slope approximately 50
feet downslope of Bench FF stations FFO+00 to FF9+00 for subsequent leak detection trench
construction access.
Cameron Site: SLF processing continued at the Cameron Site.
Underdrain System:
Primary Underdrain: Complete.
Secondary Underdrain: No work was performed during this reporting period.
Tertiary Underdrain: No work was performed during this reporting period.
Leak Detection: No work was performed during this reporting period.
B) Underground Workings:
Underground working UG#6117 was backfilled using on-site structural fill, compacted per project
technical specifications, and is considered remediated.
Ames placed two layers of geogrid and select structural fill on working UG #6429 in accordance
to project technical specifications. Additional remediation is required.
C) Geomembrane:
Phase 1 80-mil DSMS LLDPE Liner Installation: (Installation is suspended at this time.)
D) Drain Cover Fill (DCF) (Placement operations suspended at this time.)
E) High Volume Solution Collection System Piping (HVSCS):
No work was performed during this reporting period.
2014-12-6-MLE2 WEEKLY FINAL Page 2 of 6