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• III IIIIIIIIIIIIIIII • <br />9951A1~E OF <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Natural Resources <br />1313 Sherman 51., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX; (3031 83 28 7 06 <br />Memo To: Mr. Wallace H. Erickson <br />~ nsP ~~. D~~ P <br />R-ate °' <br />Date: 10-1-2001 <br />From: Al An~dss+orSn/a~nd Jim Dillie S~`.t,~ <br />Subjec~'1'~chnical Revision for M-84-001 Surface Rock Pit, Owned by Mr. <br />DIVISION OF <br />MINERALS <br />GEOLOGY <br />RECLAMATION <br />MIN IN G•SAFETY <br />BJI Owens <br />Governor <br />Greg E Watcher <br />Execulrve Dveclor <br />SCbmall Michael B. Long <br />Division Director <br />This memo is to address a meeting held on the site of the subject pit to discuss the stability issues <br />concerning the highwall and the 60,000 cubic yard stockpile. In attendance wer the following <br />people representing the following groups and agencies: <br />Mr. John Schmall Owner and Permittee <br />Mr. John Kornfeld Rhino Engineering, Prime Engineer for the "Revised Reclamati <br />Submitted as a Technical Revision to Division of Minerals and <br />Mr. John Withers Geotechnical Engineering Group, Geotechnical Engineer for Rc <br />and Slope Stability Study portion of the Technical Revision <br />Ms Linda Danberger Mesa County Commissioners Office <br />Mr. Mike Meininger Mesa County Engineer Director <br />Mr. Robert Florez Senior Engineering Geologist for Colorado Department of <br />Mr. Ty Ortiz Rockfall Program Manager for Colorado Department of Tt <br />Mr. Wally Erickson Colorado Division of Minerals and Geology <br />Mr. Russel Means Colorado Division of Minerals and Geology <br />Mr. Jim Dillie Colorado Division of Minerals and Geology <br />Mr. Al Amundson Colorado Division of Minerals and Geology <br />An informal meeting was held on the site September 25, 2001 to discuss the prop <br />Revision and Mr. Schmall's appeal of the DMG Staff's denial of the Technical Revisit <br />The items covered in the Technical Revision and in the meeting are the Stability of <br />the Stability of the 60,000 cubic yard Stockpile. <br />Stability of 60,000 Cubic Yard Stockpile <br />Measurements of the outslope angle of the stockpile were taken by various members ( <br />several locations to aid in the discussion and evaluation of the stability question. <br />stockpile was measured with a BruntonTM Compass to have the following values 40, <br />Plan" <br />:k Roll Ou[ <br />Technical <br />Highwall and <br />~f the group at <br />The slope of <br />38, 36, 44, 42 <br />