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110. (COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />July 2, 2015 <br />Bradley S. Wilson <br />CEMEX <br />P.O. Box 529 <br />Lyons, CO 80540 <br />Re: Lyons Quarry, Permit No. M-1977-208, Technical Revision Approval, Revision No. TR -13 <br />Dear Mr. Wilson: <br />On July 2, 2015 the Division of Reclamation, Mining and Safety approved the Technical Revision <br />application submitted to the Division on June 2, 2015, addressing the following: <br />Request to install an Activated Carbon Injection System, a Lime Injection System, and a Selective <br />Non -catalyst Reduction to the processing facilities. <br />The terms of the Technical Revision No. 13 approved by the Division are hereby incorporated into Permit <br />No. M-1977-208. All other conditions and requirements of Permit No. M-1977-208 remain in full force and <br />effect. <br />The estimated liability amount of $8,953,127 exceeds the $8,826,000.00 performance bond currently held. If <br />you have not already done so, please submit additional bond in the amount of $127,127.00. The revision will <br />not be final until the bond is approved by the Division. Notice of the Financial Warranty increase will be sent <br />under separate cover. <br />If you have any questions, please contact me at (303)866-3567 x8116. <br />Sincerely, <br />Michael A. Cunnin am <br />Environmental Protection Specialist <br />CC: Wally Erickson, DRMS <br />Barbara Coria, DRMS <br />Michael Whitehead, CEMEX <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining. state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director <br />oF.c <br />41 <br />