2014-07-28_REPORT - M1980244 - Laserfiche WebLink

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A Cat 9GG loader placed processed undersized rip rap material from the riprap plant in Cat 740 haul trucks. This material was hauled and placed into underground working #6446. A Cat dozer and a Cat vibratory roller were finish grading and compacting the subgrade between the ADR haul road STA 201.00 to 30 +00 and 118 +00 to H15+00. A Cat 345 excavator was removing material from the Phase 2 diversion channel between STA 14 +00 and 184.00. The material was hauled to the fill area east of the Phase 2 pond near the historic railroad berm with Cat 740 haul trucks and placed as structural fill with a Cat D7 GPS dozer. Cat dozers were finish grading between Bench D and Bench F. A Cat vibratory roller compacted the subgrade according to project specifications. A Cat 312 excavator hammered oversized rock on the upslope of STA 134 +00 the PSSA. Subgrade slope finishing and contouring occurred at STA A20+00 below elevation 9,450 on the PSSA slopes. Excess cut was stockpiled at the toe of the slope for later removal. A Cat smooth drum roller compacted subgrade in various areas within PSSA and surrounding Phase 1 slopes. A Cat dozer placed cut to fill near the Phase 2 diversion channel STA 4 +00 to 6-+•00 and above the historic railroad berm and between STA 18+-00 and 110 +00. Subgrade: The following subgrade areas in the PSSA were compacted per project specification to finished grade, inspected and certified for soil liner fill (SLF) placement: ➢ The north edge of roadway from STA 0 +00 to 5-+-00 of the ADR haul road. See the attached subgrade acceptance map for all accepted subgrade locations. Soil Liner Fill (SLF): SLF was placed and compacted per project specification; then, inspected, tested and certified in compliance with technical specifications in the following areas: Y From STA A10 +00 to Al2+00 and downslope to the PSSA floor. Middle portion of PSSA floor See the attached SLF acceptance map for all accepted locations. SLF from the Squaw Gulch stockpile was hauled to northern and southern inboard slopes and to the PSSA floor. The material was placed on the approved slope subgrade as fill and also stockpiled on the PSSA floor for later use in the area. SLF was placed in a loose lift approximately 1.5 feet thick on the approved subgrade by Cat GPS dozers and 740 Haul Trucks. SLF finishing and contouring occurred on the SLF at the PSSA North and South slopes. Density tests, N -72 to N -79, and depth checks, D -40 to D -47, were performed. Record Sample, SLF -15 -R, was collected and returned to AMEC's laboratory for analysis. SLF Processing: Cameron Site: No soil liner fill mining or processing occurred at the Cameron Site. Approximately 244,860 tons of SLF material has been produced and remains stockpiled at the 2014.07.05 -m1e2 weekly final Page 2 of 7