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RAG <br />Twentymile Coal Company <br />March 19, 2002 <br />~~~~~~ ~O <br />Thomas Kaldenbach ~DO~ <br />Environmental Protection Specialist MpFj 1°~ <br />1C313rShermansSt eet Room 215 d Geology o`V`SO~otM~~e~a\sandue~\o9V <br />Denver, Colorado 80203 <br />RE: PERMIT NO. C-82-056; SECOND HALF 2001 SUBSIDENCE REPORT <br />Dear Mr. Kaldenbach: <br />Please find enclosed duplicate copies of the Second Half 2001 Subsidence Report with supporting <br />subsidence data for Twentymile Coal Company. <br />If you have any questions, or require any additional information, please contact me at (970) 870-2712. <br />Sincerely, Q //- <br />Richard Mills <br />Environmental Manager <br />Enclosures <br />29515 Routt County Road #27, Oak Creek, Colorado 80467 (970) 879-3800 FAX: (970) 879-8050 <br />