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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 />Date: August 30, 2011 <br />To: Brock Bowles <br />From: Susan Burgmaier <br />Mined Land Reclamation <br />RE: Yoast Mine C -1994 -082 <br />Phase II Bond Release Application (SL -3) <br />Request for Assistance <br />STATE OF COLORADO <br />We will be proposing a decision to partially approve the Phase II bond release request for the Yoast <br />Mine. We will be excluding three areas from the request: the Neck Pit slide area, the Pond 013 slide <br />area, and a portion of the YPM -5 -1 permanent drainage channel. Excluding these areas results in the <br />loss of three transects of cover data (Transects 7, 11, and 27). I did a preliminary check and found that <br />average cover increases slightly to 55.73, and the new minimum number of samples would be 16 (was <br />12). Will you please check my work and verify that the cover standard and sample adequacy are still <br />being met without these three transects? Please let me know if you need any other information <br />complete your review. <br />COLORADO <br />D I V I S I O N O F <br />RECLAMATION <br />MINING <br />— &— <br />SAFETY <br />John W. Hickenlooper <br />Govemor <br />Mike King <br />Executive Director <br />Loretta E. Pilieda <br />Director <br />Office of Office of <br />Denver • Grand Junction • Durango Active and inactive Mines <br />