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iiiiiiiuiiniuiii <br />999 <br /> <br />United States Department of the Interior <br />BUREAU OF LAND hLaN.aGEM1(ENT <br />Liule Snake Resource Area <br />1:90 Induavial <br />~'eCEl1!`p Craig, Colorado8lfi°O5 <br />Ln Reply Refec To: <br />3450 (170) <br />JAN ~2 ~qq~ coc-saeoe~ <br />COD-052547 <br />~~ ",~~;"~.~s 8 Gcefo~~ <br />Mr. Richard Mills <br />Environmental Manager <br />Twentymile Coal Company <br />29515 Routt County Road 1{27 <br />Oak Creek, Colorado 81467 <br />December 30, 1997 <br />Re: Resource Recovery and Protection Plan (R2 P2) Modification No. 6, <br />Twentymile Coal Company <br />We have completed our review of your R2 P2 modification dated October 27, 1997. <br />The areas to be dropped in this modification were previously identified as <br />unminable by the BLM. Our inspections have noted the safety concerns, <br />difficult conditions, and high costa incurred by Twentymile while attempting <br />to mine through the fault and up the steep dip on the western end of the <br />Eastern Mining District. <br />This modification affects maximum economic recovery of the federal coal <br />resource. The federal recoverable coal reserves will be adjusted ae follows <br />on the three federal leases impacted. According to our records the federal <br />recoverable reserve figure for D-052547 was established in 1986 and was never <br />adjusted upward to include the steep grade coal. The federal recoverable coal <br />reserve number for lease D-052547.wi11 not change with this modification. <br />Lease Current Federal Reserves Revised Federal Reserves <br />C-54608 23,784,000 tons 22,042,000 tone <br />C-081330 14,410,000 tons 12,146,000 tone <br />D-052547 2,130,000 tone 2,130,000 tone <br />The Foidel Creek R2 P2 Modification No. 6 is approved. <br />If you have any additional questions, please contact Jerry Strahan at (970) <br />824-4441. <br />J <br />Joh E. Husba d <br />Ar Manager ~ . <br />cc: Larry Kline, OSM <br />Mike tong,' DMG <br />