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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />August 20, 2015 <br />Tonia Perkins <br />Trapper Mining, Inc. <br />P.O. Box 187 <br />Craig, Colorado 81626 <br />RE: Trapper Mine; DRMS Permit No. C-1981-010 <br />Semi-annual Geotechnical Monitoring Report —March 2015 <br />Dear Ms. Perkins, <br />The Colorado Division of Reclamation, Mining, and Safety (Division) has reviewed the Semi-annual <br />Geotechnical Monitoring Report (GMR) for the Trapper Mine dated March 26th, 2015. It was received by <br />the Division on March 30th, 2015. <br />Enclosed is a memo with a review of the report from the Division's engineer. The review memo indicated <br />that Section 3.3.3 of the permit would need to be updated. Trapper is currently in the process of updating <br />the monitoring plan through Permit Revision No. 7 (PR7). Please provide the Division any additional <br />updates on the ground control plan as it relates to MSHA requirements in the slide area in the next <br />Geotechnical Monitoring Report. <br />Thank you for submitting this report. If you have any questions please feel free to contact me at (303) 866- <br />3567 ext. 8147. <br />Sincerely, <br />Tabetha Lynch <br />Environmental Protection Specialist <br />Enclosures: 1.) Review of March 2015 Semi -Annual Geotechnical Monitoring Report; M. Talvitie, <br />DRMS, April]6, 2015. <br />OF CQl0 <br />tL' i <br />I � <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director 187G <br />