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• iii iiiiiiiiiiiiiiii • <br />999 <br />RECEIVED <br />United States Department of the Interior MAY p g <br />~sse <br />BUREAU OF LaIVD MANAGEMENT Division of Minerals 8 Geobgy <br />Little Snake Resource Area <br />1280 htdusvial <br />Craig, Colorado 81tiY5 <br />In Reply Refer To: <br />3450 (170) <br />COC~081330 <br />COC-54608 <br />COD~052547 <br />December 30, 1997 <br />Mr. Richard Mills <br />Environmental Manager <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, Colorado 81467 <br />Re: Resource Recovery and Protection Plan (R2 P2) Modification No. 6, <br />Twentymile Coal Company <br />We have completed our review of your R2P2 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 costs 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 as 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 tons <br />C-081330 14,410,000 tons 12,146,000 tons <br />D-052547 2,130,000 tons 2,130,000 tons <br />The Foidel Creek R2P2 Modification No. 6 is approved. <br />If you have any additional questions, please contact Jerry Strahan at (970) <br />824-4441. <br />%. / .. <br />' .~JohryE. Husband <br />Ase Manages <br />cc: Lassy Kline, OSM <br />Mike Long, DMG <br />