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OXBOW MINING, LLC <br />.9 <br />3737 H 133 P.O. Box 535 Somerset, 0 81434 USA Tel 970 <br />Hwy (970)929-5122 Fax <br />( ) <br />(970)92 -5177 <br />December 13, 2011 <br />Mr. Brock Bowles <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, Colorado, 80203 <br />Re: Oxbow Mining LLC, Permit No. C- 1981 -022, Request for MR -97 — Second Fan at Bear <br />Creek Fan Facility. <br />Dear Mr. Bowles, <br />The purpose of this letter is to request MR -97. MR -97 provides for the addition of a second <br />ventilation fan located on the existing Bear Creek fan facility disturbance. MSHA requires more <br />ventilation air through the Gob and the mine bleeder system for the North Mining District and a fan <br />capable of pulling air at higher pressures was selected. The second fan will be connected to the <br />existing shaft and fan steel structure and airflow to the second fan will be controlled via internal air <br />flow regulating doors. Only one fan will run at a time and the first fan will remain in place and fully <br />operable as a spare. The second fan will not increase flow volume, rather it will increase flow <br />pressures thus reducing the occurrence of "stalls" occurring with the present fan. <br />No additional disturbance is required for the second fan. The fan will fit into the present footprint of <br />the existing Bear Creek fan facility. The approximate 15'x10'x50' structure will consist of the fan, <br />drive, motor and pre- engineered steel structure. The fan will require a number of concrete footers, <br />foundations, pedestals, etc. containing approximately 153 CY of reinforced concrete. The existing <br />security fence will need to be shifter a bit closer to the Bear Creek ranch road but traffic will not be <br />affected. Recall that the surface ownership for this facility area is Oxbow Mining, LLC. <br />The MR -97 consists of the attached PAP pages 2.05 -11b, 2.05 -12b, 2.05 -12c and Exhibit 2.05-El- <br />BCA4. We also request the Division complete the reclamation cost estimate for the additional fan. <br />Please contact me at (970) 929 -5806 should you have questions or require further information. <br />Sincerely, <br />w.ti, � k r <br />d mes A. Kiger <br />Environmental Manager <br />Attachments <br />Xc: BLM, USFS <br />Delta County and Gunnison County Planning Departments <br />Paonia Library <br />Jim Cooper (OMLLC) <br />Files <br />• Page 1 <br />