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• <br />• <br />Yoast Mine SL-3 February 2011 <br />Phase 11 Bond Release Request <br />Numerous topsoil depth samples (172) have been taken over 818 acres which translates to one <br />(1) sample per 4.7 acres. The results of this sampling indicate an average replacement depth <br />of 21.4 inches over the entire area requested for Phase II bond release. Based on the results of <br />the topsoil depth sampling, the area meets or exceeds the estimated replacement depths over <br />the entire Phase II bond release area. Attachment D, Topsoil Depth Sampling Summary, <br />presents a tabulation and statistics of the sampling effort. <br />The documentation for this sampling effort is presented in the permit document in Annual <br />Reclamation Reports submitted since 2000. <br />3a <br />