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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 16, 2014 <br />Jim Stover <br />J.E. Stover & Associates <br />2352 N. 7th St. Ste B <br />Grand Junction, CO 81501 <br />Re: Munger Canyon Mine (Permit No. C- 1981 -020) <br />Technical Revision Application No. 25 (TR -25) <br />Adequacy Review <br />Dear Mr. Jim Stover: <br />The Division of Reclamation, Mining and Safety has received CAM Mining, LLC submittal of <br />TR -25 for the Munger Canyon Mine. The technical revision was received on April 8, 2014 and <br />deemed complete on April 16, 2014. The Division has reviewed the submittal and has the <br />following questions and comments. <br />Per Rule 4.05.2(2) sediment ponds shall be maintained until the disturbed area cover <br />ceases to contribute a sediment load above natural conditions and "the quality of <br />untreated drainage from the disturbed area meets the [applicable] State and Federal water <br />quality standard requirements... for receiving streams." Stover and Associates has <br />provided the first part of this (the sediment load portion), but has not addressed the <br />portion of the rule regarding water quality requirements. Please compare water quality <br />requirements in receiving waters to measured or predicted water quality in runoff from <br />the areas in question (without treatment from the pond or other sediment control <br />practice). The water quality requirements that are relevant are those of the Water Quality <br />Control Commission (within the Colorado Department of Public Health and <br />Environment), namely Regulation No. 37, Classifications of Numeric Standards for <br />Lower Colorado River Basin. <br />If you have questions or need additional information, please contact me. <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 />= 'c��a <br />aw ' - <br />1876 <br />