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DESERADO MINE <br />BLUE MOUNTAIN ENERGY <br />3607 County Rd. 65 <br />Rangely, CO 81648 <br />(970)675 -4300 <br />fax (970)675 -4399 <br />May 24, 2012 <br />Mr. Zach Trujillo <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />ve'o <br />fir+, 9 )(1\7 <br />., , am ation, <br />D S <br />�pi and <br />RE: Minor Revision #151 — Addition of Rock Dust Hole RDH -4, associated <br />facilities, and co- located Breathable Air Hole. <br />Dear Zach: <br />Enclosed is minor revision (MR -151) to add an additional Rock Dust Hole and associated <br />facilities along with a co- located Breathable Air Hole. These facilities will essentially <br />replicate the current facilities located at RDH -2. <br />Drill holes associated with this revision include an 8" diameter finished hole for the <br />Breathable Air, a 7 "d finished hole for the Rock Dust, and a 4 "d finished hole for <br />Auxiliary power and communications. <br />A power line spur of 520 feet will be installed to power the facilities. <br />Other details are provided on Map 158. <br />If you have any further questions please contact me at 970 - 675 -4322. <br />Sincerely, <br />Scott Wanstedt <br />Environmental Engineer <br />swanstedtL desei ado.com <br />enc: <br />cc: Jeff Dubbert <br />Paul Daggett — BLM <br />