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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 C O L O RA D O <br />Denver, Colorado 80203 - DIVISION O F <br />Phone: (303) Bfi&3567 ~ MIN S RA L S <br /> <br />FAX: (303) 832-8106 G E O L O G Y <br /> 0.EC LANATION•MINING <br /> SAFETY•ECIENCE <br />June 9, 2005 eiu Owens <br /> Governor <br /> Russell George <br /> <br />Brian Watterson Executive Director <br />BTU Em ire Cor oration <br />p P Ronaid w. canany <br /> Division Direcror <br />29515 Routt County Road #27 Natural Resource Trustee <br />Oak Creek, CO 80467 <br />RE: 2004 Annual Hydrology Report Response Review f~~~ <br />Eagle Mine Complex, #C-81-044 //r~''t i <br />Dear Mr. Watterson: ~ / "~~~ ~~~~~ <br />The Division has completed review of the responses to the 2004 Annual Hydrology <br />Report (AHR) review for the Eagle Mine Complex. The original questions are listed by <br />shorthand notation in brackets and the Division's response follows this notation. <br />General Comments <br />1. [Hydrologic Monitoring Program Location Map] Response accepted. <br />2. [seven triggering events] Response accepted. Please include this detail in <br />future reports. <br />3. [Table 1] Response accepted. <br />4. [Okie Plaza well abandonment report] Technical Revision #25 requested and <br />received approval to drill a development hole within the permit boundary in <br />Section 30, T6N, R91 W. The abandonment report is for a well in Section 30 <br />T5N, R91 W which is outside the permit boundary. While T5N is a likely a typo, <br />this still does not address the abandonment of the Okie Plaza well in Section 6 <br />T5N R91 W. The original question remains unresolved at this time. <br />5. [submit a minor revision to include hardness] Response accepted. <br />Monitoring Freguency <br />The monitoring frequency as determined by Appendix D, Temporary Cessation <br />Monitoring Plan (TC Plan) pages D-1 and D-2, June 21, 2001 is as follows: <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />