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COLORADO <br /> Division of Reclamation, <br /> AV, Mining and Safety <br /> Department of Natural Resources <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 <br /> April 11, 2016 <br /> Bradley S. Wilson <br /> CEMEX,Inc. <br /> P.O.Box 529 <br /> Lyons, CO 80540 <br /> Re: Lyons Quarry,Permit No.M-1977-208,Technical Revision Approval,Revision No.TR- <br /> 15 <br /> Dear Mr.Wilson: <br /> On April 11,2016 the Division of Reclamation,Mining and Safety approved the Technical Revision <br /> application submitted to the Division on January 22, 2016, addressing the following: <br /> Review of cement kiln dust composition as a result of adding activated carbon and hydrated <br /> lime to reduce mercury and hydrogen chloride emissions. <br /> The terms of the Technical Revision No. 15 approved by the Division are hereby incorporated into <br /> Permit No. M-1977-208. All other conditions and requirements of Permit No. M-1977-208 remain <br /> in full force and effect. <br /> If you have any questions,please contact me at(303)866-3567 x8116. <br /> Sincerely, <br /> Michael A. ngham <br /> Environmental Protection Specialist <br /> CC: Wally Erickson, DRMS <br /> Michael Whitehead, CEMEX <br /> ,a <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 Robert W. Randall, Executive Director Virginia Brannon, Director # <br /> )R76 ',� <br />