2015-10-08_REPORT - M1980244 (4)

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�F CRIPPLE CREEK & VICTOR GOLD MINING Co. ANGLOGOLD ASHANTI (COLORADO) amec SQUAW GULCH (VLF) WEEKLY REPORT foster wheeler Subgrade: Phase 1 areas dozed to finished grade were compacted per project plans and specifications. See attached figure for approved subgrade. Soil Liner Fill: A Cat smooth drum roller, a Cat excavator and a water truck conditioned and compacted SLF prior to geomembrane deployment. Cat 777 haul trucks transported processed SLF from the Cameron area to a temporary stockpile at station 48+00 of the ADR haul road. Cameron SLF processing continued. John Deere 740 haul trucks delivered SLF from the temporary stockpile to the fill area. A Cat dozer placed SLF between stations 14+00 to 30+00 of the ADR haul road. A Cat smooth drum roller compacted the SLF surface following placement in the fill area. Cat 740 haul trucks transported SLF from the temporary stockpile to station F2+00. A Cat dozer placed SLF above stations F2+00 to F5+00. A Cat dozer placed SLF above stations FM8+00 to FM 12+00. All of the above Soil Liner Fill material was placed, graded, and compacted per the project plans and specifications. Moisture content, density testing and depth verification were performed per project specification prior to surface acceptance and geomembrane installation. See attached figure for approved SLF. Drain Cover Fill: Cat 740 haul trucks transported DCF from the stockpile to Phase 1. Low ground pressure Cat dozers placed DCF on approved geomembrane in Phase 1. A Cat excavator removed DCF to expose a 24—inch HVSCS pipe in the vicinity of station A20+00 of the ADR haul road. Eroded SLF was removed from DCF fill near station 14+50 of the ADR haul road. See attached figure for approved DCF Underdrain System: Primary Underdrain: Complete. Secondary Underdrain: None. Tertiary Underdrain: None. Leak Detection: A Cat excavator prepared leak detection trench between stations FM4+00 to F28+00. A Cat skidsteer assisted with construction and backfill of approximately 200LF of leak detection. A Cat excavator prepared leak detection trench between stations F0+00 to F4+00. A Cat skidsteer assisted with construction and backfill of approximately 200LF of leak detection. All work was completed per project plans and specifications. Miscellaneous: Amec personnel continued LVSCS pump monitoring and observation.