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<br /> <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />Jared Polis, Governor | Virginia Brannon, Director <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br /> <br /> Inter Office Memorandum <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />RE: New Horizon North; C2010089 <br />Technical Revision, TR19 <br /> <br /> <br />I was requested to assess the above referenced permit revision with respect a review of the as- <br />built maps in Appendix 2.05.3(4)-6 and Appendix 2.05.3(4)-10 reflecting the downsizing <br />reconstruction of Ponds 001 and 002 at New Horizon North Mine. Rules 4.05.5 Sediment <br />Control Measures and 2.05.6(3), Protection of the Hydrologic Balance. <br /> <br />My review of the maps and associated documents follow. <br /> <br />DRMS notes that as per Map 2.05.3(4)-6 and Map 2.05.3(4)-10 Ponds 001 and 002 should adequately <br />contain the 10 year 24 hour and, the 25 year 24 hour storm events for the area as per Rule 4.05.5. <br />The information provided is adequate. <br /> <br />Please let me know if you have further questions. <br /> <br /> <br /> <br />Thank you <br /> <br /> <br /> Robin Reilley, M.S; GISP <br />Environmental Protection Specialist <br /> <br />To: Brock Bowles, DRMS <br />From: Robin Reilley, M.S; GISP, DRMS <br />Date: 16 Jan2019