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0,04 e?;O0000 <br />OXBOW MINING, LLC <br />3737 Hwy 133 P.O. Box 535 Somerset, Colorado 81434 USA Tel (970)929-5122 Fax <br />(970)929-5177 <br />July 16, 2010 <br />Mr. Mike Boulay <br />RECEiXIED <br />Environmental Protection Specialist AL 1 92010 <br />Colorado Division of Reclamation, Mining and Safety Division of Reclamation, <br />101 South P, Suite 301 Mining and Safety <br />Grand Junction, CO. 81501 <br />Re: Oxbow Mining LLC, Permit No. C-1981-022 Request for MR-90 - Modified Methane Drainage <br />Plan for GVB-LW-17-01C <br />Dear Mr. Boulay, <br />Oxbow Mining, LLC requests a Minor Revision No. 90 to Permit C-1981-022. The purpose of the MR is <br />to provide for a change in the location of GVB-LW 17-01C. <br />The Division will note that Oxbow has prepared the recent methane drainage plans to include a cluster of <br />3 vertical boreholes near the start line of each north district panel to drain the methane from the initial <br />longwall subsidence area. We have found that the cluster of 3 boreholes and 3 methane exhausters is <br />inefficient as the 3 exhausters tend to work against each other. The solution for the LW 17 Panel is to <br />separate the 01C borehole from the 01A and 01B boreholes. The location of the proposed 01C borehole <br />pad is along an existing two track ranch road <br />To address the proposed change today, we are including a revised Map 2.05-MI, Sheet 6 of 6, General <br />Facilities. <br />Please contact me at (970) 929-5806 should you have questions or require further information. <br />Sincerely, <br />CJJ mes A. Kiger <br />nm <br />ental Manager <br />Attachments <br />Xc: BLM <br />USFS <br />Delta County and Gunnison County Planning Departments <br />Paonia Library <br />Jim Cooper (OMLLC) <br />Files <br />0 Page 1