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To: Jared Ebert <br /> Date: January 2, 2018 <br /> Page 31 <br /> calculates the factor of safety for a point 30 feet from the structure to be safeguarded. <br /> This was done because there is a 30-foot wide right-of-way measured from the crest of <br /> the Little Cache la Poudre Ditch that would be used for ditch access. A similar <br /> demonstration was done for the Platte River Power Authority power pole, just to show <br /> that access around the pole could be maintained after reclamation is completed. The <br /> Geotechnical Stability Analysis report (Attachment 7) has been updated as necessary to <br /> clarify this issue. <br /> Comment 53 <br /> The Applicant states no material piles or other loads will be allowed within the fifty (50) <br /> foot offset between the highwall and permanent structures. A material stockpile is <br /> indicated on the right side of cross-section B-B' on Figure 4 submitted with the stability <br /> analysis. Please explain this discrepancy and update Figure 4 and/or the stability <br /> analysis models as required. <br /> Response 53 <br /> During Phase 1 of the mining operation, a temporary overburden stockpile will be placed. <br /> However, the stockpile will not remain in place. It will be removed and used for <br /> reclamation backfill in other portions of the mining operation prior to the advancement of <br /> mining in that area. The Geotechnical Stability Analysis report (Attachment 7) has been <br /> updated to clarify this issue. <br /> Comment 54 <br /> The Applicant states no material piles or other loads will be allowed with in the fifty (50) <br /> foot offset between the highwall and permanent structures. A landscape berm is indicated <br /> around the perimeter of the site on Exhibit C—Mine Plan Map submitted with the permit <br /> application. Please explain this discrepancy and update Exhibit C and/or the stability <br /> analysis models are required. <br /> Response 54 <br /> This berm has been included in a new slope stability determination for structures located <br /> on or near the property boundary where this berm may be installed. Although this berm <br /> may be removed after mining and used as reclamation material, the new stability <br /> calculations assume it may be permanent. These analyses have been incorporated into an <br /> updated Geotechnical Stability Analysis report (Attachment 7), is resubmitted for DRMS <br /> review. <br /> Response to DRMS comments T E L E S T O <br />