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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 />May 12, 2015 <br />Mr. Neil Thomson <br />E-470 Public Highway Authority <br />22470 E. 6th Parkway <br />Aurora, CO 80018 <br />Re: Sandy Acres Pit, DRMS File No. M-1980-110 <br />Technical Revision No. 3 (TR -03) <br />Approval <br />Dear Mr. Thomson: <br />On May 12, 2015 the Division of Reclamation, Mining and Safety (Division/DRMS) approved the <br />Technical Revision application (TR -03) submitted to the Division on April 28, 2015, addressing the <br />following: <br />Change backfilling plan from using a convey belt to place backji'll into the exposed groundwater <br />pond to using a team of scrapper to place bac>jll into the exposed groundwater pond. <br />The terms of the Technical Revision No. 3 approved by the Division are hereby incorporated into Permit <br />No. M-1980-110. All other conditions and requirements of Permit No. M-1980-110 remain in full force <br />and effect. <br />If you need additional information please contact me at the Division of Reclamation, Mining and Safety, <br />1313 Sherman St., Room 215, Denver, CO 80203, by telephone at 303-866-3567, extension 8131, or by <br />email at Tyler. ODonnell a,state.co.us. <br />Sincerely, <br />Tyler _O'Donnell <br />Environmental Protection Specialist <br />cc: Wally Erickson, DRMS <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 />e�oF coto�\ <br />I F 0 <br />v, p <br />1876 <br />