2015-05-13_REPORT - M1980244

• Permit No: M1980244
• IBM Index Class Name: REPORT
• Doc Date: 5/13/2015
• Doc Name: CQA Report - weeks ending 4/25/15 and 5/2/15
• From: CC&V
• To: DRMS
• Email Name: TC1
• Media Type: D
• Archive: No

CRIPPLE CREEK & VICTOR GOLD MINING Co.
ANGLOGOLD ASHANTI (COLORADO) amec
SQUAW GULCH (VLF) WEEKLY REPORT foster
wheeler
S0+00. Cat dozers and a Cat excavator rough/finished graded the Phase 2 Surface Water
Diversion Channel in the vicinity of stations S38+00 through S44+00.
Cat dozers placed structural fill in the vicinity of stations C14+00 through C16+00.
GPS equipped Cat dozers graded the slope between the E and G benches in the vicinity of
stations E4+00 and G4+00. The dozer was supported by a Cat excavator with attached rock
hammer, breaking oversized rock. A Cat smooth drum roller compacted the finished subgrade.
All of the above Structural Fill material was placed, compacted, and graded per the project plans
and specifications.
Subgrade:
Subgrade was accepted in the areas shown on the attached figure.
Soil Liner Fill:
Soil Liner Fill (SLF) processing continued at the Cameron Site. Cat 777 haul trucks hauled SLF
from the Cameron stockpile to the Phase 1 stockpile.
Cat 740 haul trucks hauled SLF from the Phase 1 stockpile to the A and C benches. GPS
equipped Cat dozers placed Soil Liner Fill material between the Phase 1 A and C benches
upslope of approximately stations A6+00 through A8+00.
A Cat excavator built a containment berm between stations Q2+50and Q3+00 on the west
perimeter.
The above activities were performed per the project plans and specifications.
Drain Cover Fill:
A Cat dozer and a Komatsu loader spread and finish graded previously hauled and placed Drain
Cover Fill material between B and DD benches between stations 132+00 through B11+00. The
dozer maintained a minimum of two feet of cover between the LLDPE liner and the dozer tracks;
the loader maintained four feet cover
Prior to DCF placement, solution collection piping was placed on the approved LLDPE liner per
the project drawings.
Ames and Amec personnel were on site throughout the shift to monitor the integrity of the liner
and piping during DCF placement. All DCF activities were performed per the project plans and
specifications.
Underdrain System:
Primary Underdrain: Complete.
Secondary Underdrain: A Cat excavator prepared underdrain trench between stations
116+00 and K10+00. Approximately 300 feet of underdrain
was constructed and backfilled per project plans and
specifications.
Tertiary Underdrain: No activity