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i 1 <br /> <br />1 <br /> <br /> <br />t <br />1 <br />t <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br /> <br />38 <br />1 The design concepts that were used for <br />2 the waste drop disposal area remain unchanged from <br />3 the approved permit. Those design concepts included <br />4 construction of the waste rock disposal area and <br />5 50-foot high lifts with 75-foot setbacks before <br />6 beginning the next lift. <br />7 That would achieve a 3 horizontal to 1 <br />8 vertical slope, and as I will get into in the <br />9 reclamation, it will also allow those to be graded <br />10 out upon reclamation to an approximate <br />11 3 horizontal to 1 vertical slope. <br />12 The waste rock stability analysis that <br />13 was performed for these new disposal areas used the <br />14 same criteria that was part of the approved permit <br />15 and indicates acceptable factors of safety under <br />16 both static and pseudostatic conditions for the <br />17 waste rock disposal areas that were changed. <br />18 The geochemistry of the waste rock <br />19 hasn't changed because the waste rock is the same <br />20 material as what was included in the previously <br />21 approved permit. As I said, I will address <br />22 reclamation of the waste rock disposal areas in my <br />23 discussion about reclamation. <br />24 The biggest change in the amendment was <br />25 the change in the milling process and the ultimate <br />AGREN, BLANDO & BILLINGS <br /> <br />