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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 86Cr3567 <br />FAX: (303) 832-0106 <br />C~ ,~ <br />August 24, 2005,/ <br />Messrs. Curt and Chazles Houchin :/ <br />P.O. Box 162 <br />Green Mountain Falls, CO 80819 <br />Russell Ceorge <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />RE: Technical Revision Approval, Houchin Pit, Technical Revision TR-01, Permit No. M-1980-249 t~ <br />Dear Messrs. Houchin: <br />On August 24. 2005 the Division of Minerals and Geology (DMG) conditionally approved the Technical <br />Revision TR-Ol application submitted to the DMG on July 26, 2005, addressing the following: <br />Change reclamation slope requirement from a 3:1 slope to highwall and bench configuration. <br />The condition to approval of TR-Ol is based on the CTL-Thompson geotechnical report that was included with <br />the application. The report recommends an observational approach to mining with bench and highwall designs <br />to be based on rock exposed at the final pit perimeter. The condition to approval is as follows: <br />Stipulation No. 1: <br />Final bench and highwall designs will be submitted as a technical revision, along with documentation <br />of supporting geotechnical observations. The designs must be approved by DMG prior to topsoiling <br />and revegetation operations on the benches. <br />The terms of the Technical Revision No. Ol approved by the DMG aze hereby incorporated into Permit No. M- <br />1980-249. All other conditions and requirements of Permit No. M-1980-249 remain in full force and effect. <br />If you have any questions, please contact me at (303) 866-4063. <br />Sincerely, <br />., <br />~~~ - ~ ~ _ <br />Allen C. Sore - `~ <br />Reclamation Specialist <br />cc: Harry Posey, DMG (via email) <br />Bruce Humphries, DMG (via email) <br />c:\Documents and Se[tingsWCSVNy Documents\houchin pit tr OI appvl.doc <br />COLORADO <br />DIVISION O F <br />MINERALS <br />GEOLOGY <br />0.EC LAN ATIO N•NINING <br />FAEFTY•SCIENCF <br />Bill Owens <br />Governor <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Gemloaical Survev <br />