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
Miscellaneous:
Completed the welding/installation of the small water truck water stand HDPE pipe.
Amec personnel continued LVSCS pump monitoring and observation.
One Cat D6 dozer graded and contoured topsoil stockpile 34.
One Cat excavator began the excavation of the Phase 1 LLDPE liner anchor trench between
stations A0+00 and C0+00.
ADR2 - LVSCS - One Cat mini -excavator removed approximately one foot of previously placed fill
from around the LVSCS pipes in preparation for the construction of the LVSCS building
foundation. The material was replaced with approximately 6" of Low Volume Solution Control Fill
and approximately one foot of Soil Liner Fill for subsequent LLDPE liner work. The Soil Liner Fill
was tested for moisture content and compaction with passing results
B) Underground Workings:
The following work was performed on the Underground Workings during the reporting period
UG #6004 — Confirmatory drilling: 111 bore holes;—5,550LF; began the removal of shot rock.
Further remediation required.
UG #6116 — Excavated approximately 6' into competent rock; backfilled. Cat 330 excavator = 2.5
hours T&M. Remediated.
UG #6118 — Excavated approximately 10' into competent rock; backfilled. Cat 330 excavator =
2.0 hours T&M. Remediated.
UG #6457 — Excavated approximately 8' into competent rock; backfilled. Cat 330 excavator = 0.5
hour T&M. Remediated.
UG #6478 — Timbered shaft visually opened to approximately 30'; prepared drill access. Cat 330
excavator = 1.0 hour T&M. Further remediation required.
UG #6531 — Began excavation and immediately located horizontal stope; excavation stopped;
determined larger equipment was required to continue; prepared equipment access. Further
remediation required.
UG #6535 — Excavated approximately 12' into competent rock; backfilled. Cat 330 excavator =
2.0 hours T&M. Remediated.
UG #6536 — Excavated approximately 20'— no bottom found; backfilled for safety and drill
access. Cat 330 excavator = 1.0 hour T&M. Further remediation required.
UG #6576 — Cat D10 dozer and Cat CS56 compactor backfill and compact in preparation for
geogrid installation. Further remediation required.
UG #6639 — One Cat 35D excavator and one Cat 289D loader cleared structural fill material in
preparation for future geogrid installation; prepared and compacted subgrade for geogrid
installation; began installation of geogrid; began placement of Select Structural Fill material over
the geogrid; began backfilling with Structural Fill material. Further remediation required.