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demonstrate that the natural geologic conditions of the azea proposed for mining are different from those <br />of the recent slide azea. Therefore, the Division requests the following information: <br />1. the geotechnical conditions (planes of weakness) and geotechnical stability of the azea to be <br />mined; <br />2. more detailed information on the mining sequence proposed [Rule 2.05.3(1)] and spatial <br />orientation of materials handling that mitigates the potential for slides; <br />3. include in the geotechnical stability information horizontal stress relief (minor forces) as well as <br />primary forces (gravity) as they relate to potential ground movement into the opened pit azeas. <br />The proposed decision date is January 6, 2007. Please provide the requested information to the Division <br />prior to December 22, 2006, to allow for the Division's review so as to meet regulatory timeframes. <br />Should TMI have additional questions, please call me. <br />Sincerely, <br />~/ - <br />J et H. Bi s <br />E vironme al Protection pecialist <br />C:\jhb\C81010\2006 TR\TR98\November 24 Adequacy.doc <br />2 <br />