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- - - - -- STATE--OF -COLORADO. <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources / <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 C O L O RA D O <br />Phone: (303) 866-3567 D IVI S I ON OF <br />RECLAMATION <br />FAX: (303) 832-8106 MINING <br /> <br />November 3, 2009 SAFETY <br />Bill Ritter, Jr. <br />James Mattern Governor <br />Trapper Mining, Inc Harris D. Sherman <br />P.O. BOX 187 Executive Director <br />Craig, CO 81626 Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />RE: Trapper Mining, Inc., Permit C-81-010 <br />Semi-annual Geotechnical Monitoring Report (Oct-2009) <br />Dear Mr. Mattern, <br />The Colorado Division of Reclamation, Mining, and Safety (CDRMS) has reviewed the above- <br />described Geotechnical Monitoring Report ("GMR") for the Trapper Mine, received by the Division <br />on 02 Oct 2009. The Report is to be submitted semi-annually, per the requirements of Technical <br />Revision No. 99 (TR-99) to Permit No. C-1980-010, incorporated into Section 3.3.3 of the application <br />as pages 3-27a, 3-27b, 3-27c and 3-27d. The Division has the following comments in regard to the <br />GMR: <br />Data for one benchmark, collected on 9/8/09, appears to be anomalous when compared with prior <br />readings at that location. The site in question is 07-GI6 BM, and a displacement of 6.282' is reported <br />for cumulative vertical and 3D displacements. <br />Please verify whether it is accurate; and if it is accurate, please provide the Division with additional <br />analysis and explanation of the changes observed and any issues this apparent movement may <br />portend. <br />With the exception of the point listed above, the October 2009 Semi-Annual Geotechnical Monitoring <br />Report provided by Trapper Mining, Inc. is in general compliance with the requirements of Permit C- <br />1981-010. Measurements have been made in accordance with the seasonal schedule described on <br />page 3-27a of the permit. Thank you for the timely submittal. <br />If you have any questions feel free to contact me. (303) 866-3567 ext 8134 <br />Sincerely, <br />Jason Mu ' <br />Environmental Protection Specialist <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines