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PQ_4 <br />PEABODY COAL COMPANY <br />Western Diviaion <br />Octob®er 22, 1991 <br />7300 Sou7h Yale <br />Flags7aX, Arizona 86001 <br />(6021774-5253 <br />Mr. Carl Mount <br />Colorado Mined Land OCY ~ X1991 <br />Reclamation Division <br />1313 Sherman Street pAined Land <br />Room 215 Reclamation Division <br />Denver, Colorado 80203 <br />RE: Seneca II Mine Permit C-80-005, TR-23 <br />Dear Mr. Mount: <br />Enclosed please find three copies of an application for <br />Technical Revision No. 23 to Permit C-80-005, Seneca II <br />Mine. The revision is requested to update the <br />reclamation plan. Due to a decrease in coal demand from <br />the customer, mining activities have not advanced as <br />shown on the mine plan. Therefore, reclamation <br />activities have not progressed according to the <br />reclamation plan. Exhibit 12-1 (Operations Plan) and <br />Exhibit 13-2 (Reclamation Plan) have been revised to <br />depict the current mine plan and subsequent reclamation <br />plan. The text and tables in Tab 12 have been revised to <br />reflect the change in the mine plan. <br />Exhibit 12-1 has also been updated to show Topsoil Pile <br />JJ and reflect the current location of ramps into the pit <br />areas. Anew ramp location is proposed in the upper Wolf <br />Creek Mining area. A culvert (61a) is required for this <br />ramp location and Exhibit 7-7 has been revised to include <br />this culvert location. Tab 12 has been revised to <br />include the design calculations for this proposed <br />culvert. <br />Enclosed find the required application form, proposed <br />public notice, instructions for inserting the revised <br />material into the Seneca II PAP and the revised <br />marterial. Should you have questions, please let me <br />know. <br />Sincerely, <br />Gary W. endt <br />Supervisor, Permits <br />swl <br />Enclosure(s) <br />