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~ . <br />Reporting Period September 16, 1997 -September 21, 1997 <br />DewaterinR Borehole Road: The sight lines and slope conditions remain as previously reported. <br />Minor seepage and associated slumping is continues. <br />Substation Slope: Visual observations and survey data for the slope above the substation indicates <br />movement is continuing at a slow and gradual pace. No advancement of the head scarp further upslope <br />and into the Landing #2 road was observed. Additional work on this slope th the past week includes <br />dressing of the slope above the ditch to flatten and regrade the slope into the ditch, and creation of a <br />series of 4' high by 8' wide benches between the ditch and top of the cliff above the substation. <br />Monitoring will continue. <br />Shaft Site # 1 and #2: The compacted soil buttress installed to stabilize the shallow slope failure on <br />the steep cut slope south of Shaft #1 was observed on September 20. The buttress appears solid and <br />no new movement was visually detected. Slopes to either side of the buttress area were also observed <br />and appeared stable. Site lines are straight and intact. Visual monitoring and collection of surface <br />survey data will continue. Golder Associates has been retained to study rock fall hazards for the site, <br />as well as for the Shaft #3 site as reported last week. <br />Electric Borehole Road: This road is complete except for road base. Berms and ditches are in place. <br />Road cuts and fills are dry and stable. H-Wall is 100% complete. <br />Shaft Site #3: As of September 20, the Shaft #3 site is complete with the exception of final rip rap <br />placement for drainage ditches, and final grading for the Electric Borehole site and Degas borehole <br />road. Slopes are dry and stable. <br />If you have any questions or concerns, please feel free to contact me at (970) 929-2207. <br />Sincerely, ~~ <br />~a ~' <br />Eric W. Mende, P.E. <br />E-Seam Project Civil Engineer <br />EWM/mer <br />Attachment <br />xc: Christine Johnston -MCC w/o Attachment <br />Phil Schmidt -MCC w/o Attachment <br />Steve Westbay -Gunnison County w/o Attachment <br />File w/Attachment <br />