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`iii iiiiiiiiiiiiiiii <br />STATE OF COLC~1~vU <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmeni of Naiu ral Resources <br />1 31 3 Sherman 81., Ruom ? 1 5 <br />Denver, Colomdu BO?I13 <br />Vhune: 1 4031 8G6-}Sfi7 <br />FAY: 17071 832-8I OF <br />September 2, 1997 <br />Mr. Michael R. Neumann <br />Senior Project Manager <br />TerraMatrix <br />P.O. Box 774018 <br />Steamboat Springs, CO 80477 <br />Re: Hayden Gulch Mine (Permit No. C-80-003) <br />Minor Revision MR-12 <br />Slump Stability Investigation <br />Dear Mr. Neumann: <br />We have received your application for a minor revision to the above-referenced <br />permit. <br />Our review of your application found that all items required by the Colorado <br />Surface Coal Mining Reclamation Act, Section 34-33-101 et seq., C.R.S., have <br />been submitted and are adequate. Thus, we have approved your minor revision <br />application. Please refer to the enclosed Minor Revision Decision for the effective <br />date of the approval. <br />Please note that this minor revision includes all of the investigation and monitoritg <br />work described in TerraMatrix's letters dated August 14 and August 29, 1997, but <br />does not include the delineation of boundaries for separation of the slump area for <br />bond release. Those boundaries will need to be established in a future minor <br />revision. <br />If you have any questions, please contact me. <br />Sincerely, <br /> <br />Tom Kaldenbach <br />Environmental Protection Specialist <br />cc: David Berry. CDMG <br />~~.I <br />~~~ <br />DEPARTMENT OF <br />NATURAL ' <br />RESOURCES <br />Ray Rome. <br />Governor <br />lames 5. Lochhearl <br />Eiecmrve Dneaor <br />Michael B Lony <br />Drvismn Director <br />C:\~Tli\H-GMINE\LETFERS\MRI? WPD <br />