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AM W COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />September 16, 2015 <br />William A. Bear <br />Bowie Resources, LLC <br />P.O. Box 483 <br />Paonia, CO 81428 <br />RE: Bowie No. 2 Mine (Permit No. C-1996-083) <br />2014 Bi -Annual (2nd Half 2014) Subsidence Report Review <br />Dear Mr. Bear, <br />The Division has completed its review of the above referenced report received on 06 March <br />2015 via email. The Division finds the 2014 Bi -Annual (2nd Half 2014) Subsidence Report <br />fulfills the 2014 requirement to file an bi-annual report detailing the results of the subsidence <br />monitoring programs and the results of the visual inspections of known modern and historic <br />landslides within the permit and adjacent area for stability in June and December of each year. <br />The Division has the following comments: <br />1. Based on a visual inspection of all known hisoric and modern landslides, no new cracks <br />were observed over panel B-15 or within the location of the initation of panel B-16. <br />2. During the 211 half of 2014 pond and spring 23 was potentially mpacted by the mining in <br />Panel B-15. Based on observations, no influence to any monitoring point was impacted <br />during the period. <br />3. Subsidence monitoring stations surveyed during the reporting period identified no <br />significant change to any location; with the exception of Stations PL -11 and PL- 12 with <br />showed changes of -0.10' and -0.11' for the period respectively. <br />4. It would be beneficial, in the graphical information for the monitoring sites, to include <br />a point along the sample date axis indicating the changeover from baseline to <br />operational data. <br />Based on the information submitted, the Division finds that the data submitted reflect the <br />subsidence due to mining is less than the predicted magnitudes for longwall mining. <br />OF COlO <br />nO <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor I Mike King, Executive Director I Virginia Brannon, Director * fg76 <br />