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t DESERADO MINE <br />BLUE MOUNTAIN ENERGY <br />BLUE MOUNTAIN ENERGY <br />3607 County Rd. 65 <br />Rangely, CO 81648 <br />(970)675 -4300 <br />fax (970)675 -4399 <br />July 23, 2012 <br />Mr. Zach Trujillo <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: Minor Revision #153 — B -Seam Dewatering and Treatment System Expansion. <br />Dear Zach: <br />vtecoie° <br />JU1_ 7 9,17 <br />��� <br />pW is,or,t)• Safety <br />Mining a <br />Enclosed is minor revision (MR -153) to construct two additional ponds for the B -Seam <br />Dewatering and Treatment System. The purpose of the additional ponds is to improve our ability <br />to react to unanticipated situations as they may arise. <br />Since the new ponds will fall within the previously permitted disturbance footprint no additional <br />disturbance acreage is proposed. <br />The added material moved for these ponds will increase the volume of material moved during <br />reclamation. The increase in initial material volume (subsoil) will be 841 CY to a total of 2416 <br />CY (Task #212) and an increase of 192 CY of topsoil to a total of 552 CY (Task #215). <br />The SedCAD model was not changed since the additional storage space will only improve the <br />sediment control abilities of an already adequate system. Pond inlet and outlet design will <br />remain consistent with the existing dewatering ponds. <br />If you have any further questions please contact me at 970 - 675 -4322. <br />Thanks. <br />Sincerely, <br />Scott Wanstedt <br />Environmental Engineer <br />swanstedt (y,deserado. corn <br />enc: <br />cc: Jeff Dubbert <br />Paul Daggett — BLM <br />