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COLORADO <br />i Division of Reclamation, <br />Mining and Safety <br />Department of Natural ROQUr @s <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />November 15, 2017 <br />Climax Mine <br />Attn: Ray Lazuk <br />Highway 91 <br />Climax, CO 80429 <br />RE: Notice of Rule 3.1.7(4), Groundwater Quality Standards, Climax Mine, Permit No. M-1977-493 <br />Dear Mr. Lazuk: <br />This letter is in response to your November 3, 2017, letter and request for clarification. This letter <br />clarifies the first sentence of paragraph three in the October 20, 2017, letter from DRMS: <br />Therefore, at this time and superseding any prior permit conditions, the numeric <br />protection levels for all groundwater points of compliance for the Climax Mine will be <br />equivalent to the table value standards included in the interim narrative standard of <br />Regulation 41. <br />DRMS clarifies, any changes to the permit conditions of Permit No. 1977-493, including the numeric <br />protection levels for all groundwater points of compliance for the Climax Mine, will follow Rule 3.1.7(4) <br />and will be submitted for DRMS review and approval through the Technical Revision process, in <br />accordance with Rules 1.1(52) and 1.9, or the Amendment process, in accordance with Rules 1.1(6) and <br />1.10. <br />Sincerely, <br />u��e**,). <br />zz_ <br />Wallace H. Erickson <br />Senior Environmental Protection Specialist <br />Of Coco <br />1313 Sherman Street, Room 215, Denver, Co 80203 P 303.866.3567 F 303.832.8106 http://mfning.state.co.us ;�� ;1r E <br />John W. Hickenlooper, Governor I Robert W. Randall, Executive Director Virginia Brannon, Director '1* ; �o <br />1876 <br />