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s DESERADO <br />BLUE MOUNTAIN <br />3607 County Rd. 65 <br />Rangely, CO 81648 <br />(970)675-4300 <br />fax(970)675-4399 <br />i)ji <br />MINE <br />ENERGY <br />August 27, 2009 <br />Mr. Jason Musick AUG + "tl <br />Division of Reclamation, Mining and Safety Division <br />1313 Sherman Street, Room 215 Mining and Safety <br />Denver, CO 80203 <br />RE: Technical Revision #67 - Addition of degas boreholes LWB11-1 thru 4, Return Shaft <br />RS-5 & improved light use road to RDH-3 <br />Minor Revision #142 - Addition of five Nitrogen injection/sampling holes, associated <br />pipelines, and four portable steel building @ nitrogen plant <br />Deserado Mine - Permit No. C-1981-018 <br />Dear Jason: <br />Enclosed are two applications for revisions to Mining Permit No. C-1981-018. Technical <br />Revision #67 addresses the following changes: <br />• Addition of four degas boreholes to help regulate mine gasses in longwall panel 11. <br />• Addition of Return Shaft RS-5 to assist in maintaining proper mine ventilation. <br />• Addition of an improved light use road to RDH-3. <br />Minor Revision #142 addresses the addition of five nitrogen injection holes and associated surface <br />pipelines. <br />The enclosed submittal details the proposed changes. Also attached is a sheet providing details <br />necessary for bonding calculations. <br />If you have any further questions please contact me at 970-675-4322. <br />Sincerely, <br />Scott Wanstedt <br />Environmental Engineer <br />swanstedtAdeserado. corn <br />enc: <br />cc: Jeff Dubbert <br />Paul Daggett - BLM