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, LUR-IT-AB 15:13 from:CCiV GOLD IM~ 1t186BS3254 • T-317 P.ID/10 Job-647 <br />for [he Cresson ore. Specifically, Enclosure 7 presents the results of a direct shear test. The <br />friction angle for the Cresson ore was 38 degrees and the cohesion was 1275 psf. <br />It is highly unlikely that the friction ~ of the Cresson ore will change. Further, the ore is <br />currently deposited on the Cresson Vall ach facility and achieves stable outslopes equalling <br />the angle of repose, which further provides daily verification of the stability of the material. Ho <br />~ slumps have occurred. Funkier, the lifrs are stepped progressively farther from the edge of the <br />containment. This provides additional safety in the unlikely event there is sliding failure. The <br />reclaimed slopes are to be reduced to an overa112.5H:1.OV, substantially less than the angle of <br />repose. Therefore, there do not appear to be uncertaintie9 regarding the accuracy of long-term <br />stability projections. <br />CC&V recommends [o the Office of Mined Land Reclamation that CC&V has satisfied the <br />information requirement it committed to with respect to the "strength" of the Cresson ore. <br />Additional tests are needed only if there is a substantial change in the strength characteristics of <br />the material loaded onco the Valtey Leach facility as evidenced by substantial changes in the <br />Mine exposures of ore (i.e., by substan[ial change in geology). <br />you for your assistance in this matter. <br />I Johd Jr. I-lardaway <br />M eer Environmental Affairs <br />F1LE: CC&VSTIP.006 <br /> <br />