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COLORADO <br />Divisiorl of reclamation, <br />Iui -Orng and Safety <br />CLep iIr• er,l o4 Natural RLSOUTces <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Inter Office Memorandum <br />To: Clayton Wein <br />From: Robin Reilley, GISP, DRMS <br />Date: 15 March 2019 <br />RE: Deserado Permit: C1981018 Permit Renewal RN7 <br />I was requested to review the above referenced permit renewal for compliance with the following rules. <br />2.04.7 (2) Hydrology 2.04.8(1)-(3) 2.05.3 (4)Operation Plan <br />Description Climatological Conditions <br />My review of the permit with respect to these Rules follows. Adequacy review questions are numbered. <br />Rule: 2.04.7 (2) Hydrology Description/Conditions <br />This is a review of the surface water related sections of the Hydrology Conditions and includes: <br />a. Surface water flow rates. <br />b. Water quality information. <br />c. Waterbody locations and discharge into water bodies. <br />d. Baseline water quality discussion <br />Section II.C.2 of the permit discusses Surface Water Hydrology and comprises pre, during and post <br />mining water quality monitoring program at Deserado, and describes surface water characteristics, water <br />quality and associated data, water rights information and evaluates the potential impacts of mining on <br />these resources. <br />This section of the permit adequately meets the requirements of this rule. <br />Rule: 2.04.8 Baseline Climatological Information <br />Climate data is presented in the Hydrologic Section II.C.2 of the permit Table II.0-1 for the years 1950- <br />2005 and comprises mean monthly climate data relevant to precipitation, (rain and snow), average <br />temperature and average minimum and maximum temperatures. Additional climate data is located in <br />Section II.E of the permit. <br />The permit states that meteorological data collection was reinitiated in June 1980 and is available on <br />request. <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />*. <br />Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director <br />