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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY ? <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />C O L D ILA D O <br />Denver, Colorado 80203 D IV IS I ON O F <br />Phone: (303) 866-3567 RECLAMATION <br />FAX: (303) 832-8106 M I N I N G <br /> <br /> SAFETY <br /> Bill Ritter, Jr. <br />/ Governor <br />May 22, 2008 ? Harris D. Sherman <br />A S <br />(J Executive Director <br />Mr. Tim Haynes Ronald W. Cattany <br /> <br />Climax Molybdenum Company Division Director <br />Natural Resource Trustee <br />19302 County Road 3 <br />Parshall, CO 80468 <br />RE: Approval of Designated Chemical Use and Storage,, Henderson Mine and Mill, <br />Technica evision TR-04, Environmental Protection Plan, Permit No. M-1977-342 ?-- <br />c/ <br />Dear Mr. Haynes: <br />The Division of Reclamation, Mining, and Safety (DRMS) has reviewed the chemical information and <br />storage/dosing plans for the new iron depressant reagent Orfom D8, and hereby approves the reagent use <br />and plans as submitted. Post construction submittal of an engineer's certification and as-built report is <br />required, and written acceptance of the certification by DRMS must precede the use of the Orfom D8 in <br />the mill. Please assure that the report and certification include documentation of completion of the leak <br />testing of the new tankage as described in the plans. <br />If you have any questions, please contact me at 303-866-4063 or at allen.sorenson@state.co.us. <br />Sincexe <br />Allen C. Sorenson <br />Reclamation Specialist <br />c:/acs files/My Documents 4-19-06 thnl/henderson orfom D8 appvl.doc <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines