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r~ <br />u <br />-62- <br />MR. MASSEY: Counsel? <br />MR. BARRY: I mean, is this one of those -- I remember an occasion where <br />we had a landslide and the operator came in here and called it a slope <br />adjustment. Are we got one of those things going on here? <br />MR. JOHNSON: No. What you have is an engineered structure incorporated <br />into the pit wall to ensure the maintenance of long term stability over the <br />entire face of the pit wall. I think -- to prevent a slope movement and <br />that's the -- <br />MR. BARRY: Is the buttress made of -- is it back fill mater•fal or is it <br />the material originally in the -- is it an unexcavated portion of the pit wall? <br />MR. MASSEY: Chips, just to short circuit this. I think we`re probably <br />• talking about semantics. I mean, you backfill the material in order to form <br />the buttress. <br />MR. BARRY: Okay. <br />MR. MASSEY: That's -- the purpose of the buttress, though, is to <br />maintain the stability of the pit wall. <br />MR. HOLDER: To prevent a slope adjustment. <br />MR. MASSEY: Responsive? To prevent a slope adjustment, right. <br />MR. JOHNSON: Okay, I think we're ready to move on to the slurry wall. I <br />think its unfortunate that at the last meeting we started off calling it a <br />grout curtain, it was never intended to do that. A grout curtain has a <br />similar function and so its an understandable error that it was -- that it was <br />miss-named. The intent all along was to use a slurry wall, if necessary to <br />• cut off potential seepage channels from the Rito Seco through the alluvium <br />