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Mr. Mac Shafer <br />October 15, 2012 <br />operator further states, "Elevated water levels can potentially impact slope stability (Exhibit E and <br />Exhibit 6.5) and thus French Drain has been included in the reclamation design. <br />3) Even though the operator mentioned the Exponent report it is not included with the <br />amendment. Please provide the report for our files. <br />4) Did the operator implement all the recommendations in the Exponent report in designing <br />the reclamation plan for the quarry? Please explain. <br />5) Please provide details of the proposed French Drains that will be implemented to limit <br />potential impacts to the slope stability. <br />Exhibit 6.5 Geotechnical Stability Exhibit. <br />Please see the attached memo from T.0 Wait to Berhan Keffelew and address appropriately. <br />Please remember that the decision date for this application is October 30, 2012. As previously <br />mentioned, if you are unable to provide satisfactory response to any inadequacies prior to this date, <br />it will be your responsibility to request an extension of time to allow for continued review of this <br />application. If there are still unresolved issues when the decision date arrives and no extension has <br />been requested, the application will be denied. <br />If you have questions, please contact me at (303) 866 -3567, Ext. 8129. <br />Sincerely, <br />CC: Tony Waldron <br />Tom Kaldenbach <br />Berhan Keffelew <br />Environmental Protection Specialist <br />Attachment: Memo from T.0 Wait to Berhan Keffelew, Stability adequacy review. <br />4 <br />Page 4 <br />