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a - <br />T R A N S M I T T A L <br />to: Daniel Hernandez, Colorado Division of Minerals and Geology <br />fax #: gi~~a.~~,h~®¢~~z si,~_q~$~,gg,te~ (303) 866-4933 <br />re: RAG Twentymile Coal Company, "Foidel Creek Mine MR-167" <br />date: February 1, 2000 <br />pages: 1 (one), including this cover sheet. <br />This electronic transmittal is in response to your January 31, 2000 fax and our conversation <br />regarding the above subject. <br />The Office of Surface Mining Reclamation and Enforcement (OSM) has reviewed the material <br />associated with this minor revision and has determined that it involves the reorientation of the <br />Northwest Mains to allow for increased pillar stability, and a widening of the pillars in the <br />southern most entry for the initial 1,000 feet of the I 1 Right gateroad. As a result of the <br />reorientation, approximately 90,636 mineable tons of Federal coal will be added to Federal lease <br />COC-54608. Of that amount, 56,194 recoverable tons of additional coal will be produced from <br />Federal lease COC-54608 with a corresponding decrease in the amount of coal being mined from <br />the adjacent fee coal. <br />OSM has determined that this minor change in the amount of coal mined from Federal lease <br />COC-54608 does not require a mining plan modification approval by the Secretary, in <br />accordance with the Federal regulations under 30 CFR 746.18(c)(1) and 30 CFR 746.18(d)(3)(i). <br />If I can be of further assistance regarding this matter, please feel free to contact me by any of the <br />methods listed at the right. <br />From the desk of... <br />Carl R. Johnston <br />Physical Scientist <br />OSMRE / WRCC / PDS / NW BRANCH <br />1999 Broadway, Suite 3320 <br />Denver. CO 80202-5733 <br />303 / 844-1400, extension 1500 <br />Fax: 303 / 8441538 <br />e-mail: CJOHNSTO~OSMRE.GOV <br />