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Following installation of Z313 High Pipe, APC constructed a buttress and slope atop of said pipe. <br /> This buttress and slope were modified from the approved TR 02 in order to accommodate a small <br /> bench in the slope that was built as part of the buttress construction. <br /> Due to change in grading and pipe installations, Zone 3B has been re-evaluated for slope <br /> stability. It meets the required criteria. <br /> Figure 2—Zone 3B Aerial Photo (May 2020) <br /> 2_4 Zone 4 <br /> Tailings and a portion of colluvium were stripped in this zone and the replaced as a final fill mix <br /> over top of subsurface drainage pipe. Figure 5 shows the final location of the subsurface drainage <br /> pipe. <br /> The final fill mix has been installed according to the compaction standards approved in TR 02 <br /> and to the grade approved in that revision. The cross section used to develop the grade in TR 02 <br /> was used to produce a grade model that was staked onsite and built to. <br /> Ralston TR 03 6 Greg lxwicki..a Assecialm PLIA <br />