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• <br />STt~TE OF COLON=ADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Deponnienl w (natural Resources <br />~~ <br />131 S ilierman Si.. Room ? t i <br />I D : ~: ~ ; ~ O .~ O t <br />Den.~er, CUIOrOdO BU?U} <br />Phrre:~i0J~.9nn-lio% ih11 N E RA L `_ <br />FAY~;3i)1~~ dl1-9i0h & <br />June~,2000 GEOLOGI <br /> R E C L A M A T I O N <br /> MINING•SAFETT <br />N1s. Kathleen Welt <br />Environmental Supervisor R~Ilor,en, <br />Oxbow Mining, Inc. eivc'"°' <br />Box 535 <br />P <br />O Greg E. watcher <br />. <br />. E,eculwe Dbcanr <br />Somerset <br />Colorado 81434 <br />, Michael 8. Lanti <br /> Division Dircclor <br />RE: Permit No. C-81-022, TR-32, Reclamation Cost Estimate <br />Deaz Ms. Welt: <br />r1 <br />U <br />Attached is a copy of DMG's Reclamation Cost Estimate for the Sanborn Creek <br />Mine, TR-32. The new tasks, related to the Elk Creek Mine, aze tasks 5, 6, part of the <br />volume in task 16, 38, 39, 51, 59, part of task 62, 8.6 acres in tasks 68 and 69, 81, 82, 90a <br />and part of the hours in task 100. The estimate represents a total liability of <br />$2,738,513.00 and is an increase in liability of $413,659.00 (from the currently approved <br />amount of $2,324,854.00). <br />As I explained on the phone, the entire bond calculation was redone for this <br />technical revision. The reason it was redone entirely is because of recent DMG changes <br />to the demolition program and updated demolition costs. in previous DMG estimates <br />(with the new program) demolition costs have decreased about 25%, resulting in <br />decreased liabilities (and decreased bond amounts being held by the Division). The <br />estimate for the Sanborn Creek Mine is no different. The cost for demolition in the <br />approved estimate is $1,110,026.00. The new cost (for the same demolition work) is <br />$745,988.00 (which is $364,038.00 or 33% less). By recalculating the entire bond we <br />avoid having to lower the liability in the future (with PR-04). <br />If you have any questions regazding this reclamation cost estimate please contact <br />either Jim Stazk or myself. <br />Sincerely, <br />e~~ti <br />Sandra L. Brown <br />~ ~-~ <br />Environmental Protection Specialist <br />• Attachment <br />cc. Jerry Nettleton, w/attachment <br />