2008-03-07_REPORT - M1977342 - Laserfiche WebLink

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_ ~.~I/11c'~XMolybdenum Henderson Operations PO Box 68 Empire, CO 80438 303-569-3221 Tel 303-569-2830 Fax March 6, 2008 UPS Tracking #: 1Z 804 847 O1 5805 3633 Mr. Dave Barry, Minerals Chief Division of Reclamation, Mining and Safety Department of Natural Resources 1313 Sherman Street, Room 215 Denver, CO 80203 RE: 2008 ANNUAL REPORT 112d-3 ANNUAL REPORT - HENDERSON MINE AND MILL (PERMIT NO. M-77-342) Dear Mr. Humphries: Included are the Colorado Division of Minerals and Geology (DMG) Annual 112d-3 Report for Climax Molybdenum Company's Henderson Mine and Mill (Permit No. Iv1=77-342), and a check for the $633.00 annual fee. Below is a summary of interim reclamation activities conducted during 2007. Mine Site There were no new disturbances at the Mine in 2007, nor are any expect in 2008. No reclamation activities were conducted at the Mine in 2007. Annual weed treatments occurred over the mine property. The ground in electrical substations was treated and Clear Creek County treated the county road easement to the mine in 2007. A complete site survey was performed and atreatment plan was devised for control of Canada thistle, Musk thistle, scentless chamomile and oxeye daisy to be implemented during the 2008 summer spray season. Mill Site The tailing basin water pool increased to an elevation of 8829.6', which increased disturbed acreage in the Tailing deposition area in 2007 to 1,114 acres. This data is based on survey information completed by W.W. Wheeler. Henderson continued with the removal and relocation of topsoil that would become inundated by the rising tailing level. During the 2007 year, Henderson successfully relocated approximately 70,000 cubic yards of soil both to the north stockpile, which is located on the northern end of the tailings impoundment, as well as the SS4 stockpile located on the western side of the impoundment. During the course of 2007, Henderson completed the movement of the Barge pumpback system further up the Barge channel. As the tailing pond increases in elevation, the Barge must be continually moved closer to shore. It is not expected to be moved again until 2009.