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<br />DEPARTMENT OF NATURAL RESOURCES <br />David H. Getcheq Executive Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Dlrodor <br />Richard D. Lamm <br />Governor <br />Mr. Richard Wright <br />Twentymile Coal Company <br />P.O. Box 891 <br />Oak Creek, CO 80467 <br />Re: Subsidence Survey Report <br />Foidel Creek Mine <br />Dear Mr. Wright: <br />The Division has received and reviewed the 1984 semi-annual subsidence <br />monitoring report. The Division agrees with the company's conclusion that <br />measurable subsidence has not yet been observed. Based upon the company's <br />recitation of the hydrologic conditions, it is logical to believe the <br />company's observation that the alluvial acquifer of Foidel Creek has not been <br />affected. However, we will need to review the annual hydrology report upon <br />its submittal, in order to attest to that conclusion. <br />Please call me if you have any questions. <br />Sincerely, <br />0 ~ <br />Sandra L. Emrich <br />Reclamation Specialist <br />SLE/mad <br />Document 4391E <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />~ III IIIIIIIIIIIIIIII <br />999 <br />