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87 <br />• 1 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br /> <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />in that in the Santa Fe Formation it's a cemented <br />iconglomerate. <br />~ When you have water seeping through <br />it slowly, admittedly because it's a relatiively low <br />permeability, it has the potential to dissolve some <br />of that cementation, thereby lower the shear <br />strength and thereby affect potentially they <br />stability of the wall. <br />That is the reason for the buttress. <br />Once the buttress is in place, the weight and shear <br />strength of that buttress will confine that slope and <br />the relatively minor amount of seepage that would be <br />going through any material that has a finite <br />permeability will not have any structural impact any <br />more. So that's the only impact of the seepage. <br />MR. DANIELSON: And I don't expect <br />that you would plan on having one solid 38-degree <br />slope from the lip of the pit all the way to the <br />bottom. <br />M>R. JOHNSON: Oh, no, it's benches <br />and holes. <br />MR. DANIELSON: Is the 38 degrees the <br />slope between benches or is that the overall slope <br />including the benches? <br />MR. JOHNSON: 38 degrees, I believe, <br />