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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866 -3567 <br />FAX: (303) 832 -8106 <br />March 6, 2014 <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 />4t" Quarter 2013 Coal Mine Waste Bank Inspection and Instrumentation Monitoring <br />Review of and Comments on Revised Summary of Instrumentation Monitoring <br />Dear Mr. Bear: <br />COLORADO <br />ID I V I S I O N O F <br />RECLAMATION <br />MINING <br />SAFETY <br />John W. Hickenlooper <br />Governor <br />Mike King <br />Executive Director <br />Loretta E. Pineda <br />Director <br />The Division has received and reviewed BRL's Revised Summary of Instrumentation Monitoring, 4tn <br />Quarter 2013, prepared by Buckhorn Geotech, Inc. and dated February 18, 2014. The revised report was <br />submitted in response to the Division's February 12, 2014 review of the quarterly coal mine waste bank <br />report. <br />DRMS 02/12: In the Vibrating Wire Piezometers (VWP) section of the Summary of Instrumentation <br />Monitoring, the first paragraph describes the series of VWPs that have been installed at CWDA No. 2. <br />Please revise this paragraph to include the date (month and year) for those that were damaged and fell <br />out of service. <br />DRMS 03/06: No information about VWP -02 and VWP -03 was provided; the new discussion on <br />VWP -07 should be moved to follow the section addressing installation of VWP -06 thru -08. <br />DRMS 02/12: Also, please add a sentence which indicates that the locations of the VWPs are shown on <br />the Instrumentation Site Plan. <br />DRMS 03/06: The statement was added, as requested. <br />DRMS 02/12: The first paragraph of the VWP section refers to BGI (2009) for completion details of <br />VWP -06 through VWP -08. Please include this document (it was the 2nd Quarter report for 2009) in the <br />list of References. <br />DRMS 03/06: The 2009 report was added to the list of References. However, the title includes <br />"209" rather than "2009 ". <br />DRMS 02/12: The Division has been unable to locate specific information regarding the installation of <br />VWP -09 and VWP -10. Details for VWP -01 thru VWP -05 were provided in Tables 1 and 2 of BGI (2006), <br />and BGI (2nd Qtr 2009) provides information on VWP -06 thru VWP -08. Please provide comparable <br />details for the completion of VWP -09 and VWP -10 (Northing, Easting, Borehole Elevation, and <br />Piezometer Elevation). <br />DRMS 03/06: The requested information was provided in new Table 1, Location of VWP's <br />Installed May 18, 2012. <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines <br />