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S ENECA <br />Coal Company <br />January 12, 2012 <br />Ms. Susan Burgmaier <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: <br />Seneca Yoast Mine (Permit C- 1994 -082) <br />Phase II Bond Release Application (SL -3) <br />4th Adequacy Review <br />Ms. Burgmaier, <br />Pursuant to your letter dated January 10, 2012, Seneca Coal Company (SCC) is hereby <br />submitting the following response to the adequacy concerns listed in the letter. <br />1 -2 Resolved <br />3. SCC revised the text as requested, but a few inconsistencies remain. <br />a. Resolved <br />b. In Table 1 on page 6 of the bond release application and the narrative on Page 12 <br />of Attachment E, show that the Total All Hit allowable Herbaceous Cover of the <br />Sagebrush ERA was 36.30 percent. The equation on page 6 (below Table 1) and <br />the sample adequacy calculation on page 15 of appendix E show it as 35.8 <br />percent. Please revise the pages so that the tables and narrative are consistent. <br />c. Resolved <br />Response: The tables and narrative have been revised for consistency with the new data. <br />4 -7 Resolved <br />Attached are two (2) copies of the revised material. If there are any questions or <br />comments, please contact me at the address below. <br />Sincerely, <br />Roy A. Karo <br />Reclamation Manager <br />P.O. Box 670 <br />Hayden, CO 81639 <br />(970) 276 -5217 <br />Seneca Coal Company <br />Seneca Coal Company • P.O. Box 670 • Hayden, Colorado 81639 <br />Telephone (970) 276 -5217 • FAX (970) 276 -5222 <br />RECEIVED <br />JAN 15701? <br />Dmsion th meciamation, <br />Mining and Safety <br />