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..Y Ill !?1«i?ll??il ?;, <br />STATE ?? <br />CAF <br />COLORADO <br />DIVISION Of MINERALS AND GEOLOGY <br />01-h.riment n( Natural Resources <br />I 111 Sherman St., Rain 215 <br />Colorado 80103 <br />D-rover <br />tjY I O O <br />. <br />drhnatr (,0b hh6.3567 E R A L' <br />FAX: t3(}31 n32 HI()6 & <br /> GEOLOAI <br /> <br />April 27, 2000 RECLAMAT ot. <br />MINING•SA e'rY <br /> <br />Mr. Erich Bower 8-11 gwtnt C <br />Governor C <br />Climax Molybdenum Company Crttg t wa(Nvr = <br />19302 County Road #3 t>tecove Director V <br />1 <br />Parshall, CO 90468 v. evor <br />oryt m <br /> Q <br />RE: 2-Dam Decant Grouting and 3-Dam Seep Water Management, Henderson Mill, <br />Technical Revision TR-09, Permit No. M-77-342 t/ <br />Dear Mr. Bower: <br />On April 27, 2000 the Division of Minerals and Geology issued a conditional approval of the technical <br />revision application submitted to the Division on April 12, 2000 addressing the following: <br />Grouting a portion of the abandoned No. 2-Dam decant system and the installation of parallel <br />gravity lines to route No. 3-Dam seepage to the No. 1-Darn seepwater collection system. <br />The terms of the technical revision TR-09 approved by the Division are hereby incorporated into Permit <br />No. M-77-342. The conditions of the Division approval are listed below. Please note that all other <br />provisions of Permit No. M-77-342 remain in full force and effect. <br />Stipulation No. <br />3 <br />Description <br />The 3-Dam seepage pipelines will not be put into service until the Division has <br />issued written acceptance of the certification of the facility as required under <br />Rule 7.3.2(2) of the Hard Rock/Metal Mining Rules and Regulations. The <br />certification shall be accompanied by a construction report that will detail the <br />installation of the pipelines, including pipe and valve specifications, a description <br />of the inlet structures, seepage barriers and south dike reconstruction, a <br />description of any problems that occurred and their resolution, and a description <br />and test results of pipeline integrity testing. <br />The 3-Dam seepage pipelines will be tested for integrity at least once per year <br />and a description of the testing and results will be provided in the annual <br />reclamation report for the Henderson Mine and Mill <br />Within 60 days of completion, a grouting report will be provided for the 2-Dam <br />decant system grouting operation, The report will detail the installation of the