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,l <br /> OURAY SILVER MINES <br /> February 1, 2017 <br /> VIA U.S. Mail and Email <br /> Colorado Division of Reclamation, Mining, & Safety <br /> 1313 Sherman Street, Rm. 215 <br /> Denver, CO 80203 <br /> Dear Mr. Marshall, <br /> Please find the enclosed request for technical revision to Permit M2012-032 for the Revenue- <br /> Virginius Mine (Mine), operated by Ouray Silver Mines Inc. (OSMI)under Division of <br /> Reclamation, Mining, and Safety (DRMS)Permit No. M-2012-032. Included in this submission <br /> are: <br /> • Technical Revision Fee ($1006) <br /> • Technical Revision Request Form <br /> • Supporting Information <br /> As explained in detail in the supporting information,this technical revision seeks to: <br /> • Additional or upgraded buildings to ease winter operations and maintenance and house <br /> staff. <br /> • Allow for mill discharge, which will be treated prior to comingling with mine discharge <br /> in the mine water management system. <br /> • Update water quality monitoring requirements. <br /> • Allow for the sale of blended tailings and waste rock,provided the blend passes <br /> applicable leachate standards. <br /> OSMI looks forward to working with DRMS in this permitting endeavor. <br /> Sincerely, <br /> J- . 6-�Q " <br /> Clinton L. Fletcher <br /> President, Ouray Silver Mine <br /> PO Box 564, 1900 Main Street, Unit 1, Ouray, Colorado, USA 81427 <br /> Tel. 970-325-9830—Fax. 970-325-9824 <br />