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�J'- i-V ASSU Yd Ilie <br /> Gra e V Pldtfofm Extemion <br /> ' NewF�e;,,s° e No -175 0306 019 <br /> Octobe< 23 2017 <br /> ' the compaction method specification. Subgrade preparation adjacent to slopes was performed <br /> by keying in to the slope ensuring the fills were blended and compacted together constructing <br /> ' one homogenous fill. <br /> 3.2. Borrow Excavation <br /> SSF material for the HGM Platform Extension project was processed for previous construction <br /> projects. The stockpile was verified to meet specifications prior to use for this project. The <br /> material was loaded into 40-ton articulated haul trucks and hauled to the fill areas to be placed. <br /> 3.3. Select Structural Fill Placement <br /> All SSF material was hauled from the designated and verified stockpile using 40-ton articulated <br /> haul trucks. The material was moisture conditioned using a tandem-axle water truck and spread <br /> into 12" loose lifts using a motor grader and front-end loader. Each lift was then compacted in <br /> accordance with compaction method specification using a 10-ton vibratory smooth drum <br /> ' compactor. A total of 5,547 cubic yards of SSF was placed for the HGM Platform Extension <br /> project. <br /> ' Three samples were obtained for particle size laboratory testing and 23 moisture content <br /> samples were tested during the SSF placement with passing results. The results are summarized <br /> ' in Table 1 and Table 2 respectively. <br /> 4. DAILY REPORTS <br /> Daily field observation prepared and submitted to the Project Manager during construction of <br /> the High Grade Mill Platform Extension project are presented in Appendix F. <br /> S. PHOTOGRAPHS <br /> Select photographs taken during construction of the High Grade Mill Platform Extension project <br /> are presented in Appendix G. <br /> ' 6. CONCLUSION <br /> Based on a review of the construction documents, the daily observation reports, our <br /> ' professional judgment, and the quality assurance testing, it is our opinion that the construction <br /> activities associated with the High Grade Mill Platform Extension were in substantial <br /> conformance with the approved Construction Drawings and Technical Specifications. <br /> Page 4 <br />