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DEPARTMENT OF NATURAL RESOURCES <br />DIVISION OF WATER RESOURCES <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Dick Wolfe, P.E. <br />Director/State Engineer <br />RECEIVED Wayne I. Schieldt. P.E. <br />Division Engineer <br />August 12, 2008 AUG .14 2008 <br />Division ota d Safety n, <br />Mr. Joseph Dudash mining <br />Environmental Protection Specialist <br />Colorado Division of Reclamation Mining, & Safety <br />1313 Sherman St., Room 215 <br />Denver, CO 80203 <br />Re: Bowie No. 2 Mine, Permit No. C-1996-083, Permit Revision No. 10 (PR-10) <br />Dear Mr. Dudash: <br />The purpose of this letter is to provide the Division of Reclamation, Mining, & Safety (DRMS) with <br />comment on Bowie Resources, LLC (BRL) responses to DRMS' adequacy reviews for the above <br />referenced mining permit revision. Our comments are limited to those pertaining to the potential impact <br />of mine-induced seismic activity on the safety of Bruce Park Dam and are intended to supplement of our <br />previous letters to you dated June 11, 2003, May 16, 2006, and June 4, 2007. <br />It is our understanding that the Geotechnical Monitoring Plan for the Bruce Park Landslide prepared by <br />Yell and Associates, Inc. dated March 26, 2008 has been included as Tab 20 in Volume IIIA in order to <br />address development of a threshold monitoring program for the landslide. Our office has reviewed the <br />proposed monitoring program and has found it acceptable as a means of monitoring the landslide and <br />providing real time data along with a response action plan based on trigger levels and alarms. <br />Implementation of the monitoring program, as submitted, satisfactorily addresses our concerns of <br />providing a threshold monitoring program for the landslide during the proposed mining activity. <br />BRL's adequacy response dated June 25, 2008 indicates that a monitoring program for Bruce Park Dam <br />and saddle dam has been incorporated into the amended subsidence section of PR-10. Our office has <br />reviewed the amended section and has found it acceptable. Although not directly stated in the amended <br />section, our acceptance assumes the Bruce Park Dam and saddle dam monitoring program will follow <br />similar instrumentation monitoring frequencies and the reporting format for the landslide monitoring <br />program, including submittal of results to both the Division of Water Resources and the owner of Bruce <br />Park Dam. Implementation of the monitoring program, as submitted, satisfactorily addresses our <br />concerns of providing a monitoring program for the Bruce Park main dam and saddle dam during the <br />proposed mining activity. <br />Water Division 4 e Montrose <br />P. O. Box 456 (1871 East Main Street) • Montrose, CO 81402 • Phone: 970-249-6622 • Fax: 970-249-8728 <br />www.watenstatexo.us