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III IIIIIIIIIIIIIIII <br />~~ Twentymile Coal Company 29515 Routl County Road +r 27 <br />Oak Creek, CO 80467 <br />An Attilliate of Phone (303) 878-3800 <br />Cyprus Yampa Palley Coal Corporation <br />R~CE~~~FC <br />November 22, 1993 N~~23 19g,~ <br />Dit'r~'b.a C7 r~Gner r, a ~_ ~~ <br />Kent Gorham ~ ~c(y <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />RE:Minor Revision 93-97; Subsidence Report Clarification <br />Permit No. C-82-056 <br />Dear Mr. Gorham: <br />Attached please find the above referenced minor revision which <br />clarifies the data to be included and submittal date for the semi- <br />annual subsidence report. It is proposed that the submittal date <br />be 60 - 90 days after the period ends. This will provide time to <br />review the data, prepare maps figures and report. As you can <br />appreciate a great deal of work is involved in preparing this <br />report and the proposed submittal date recognizes this effort. <br />Also, the <br />holidays <br />monitorin <br />ability t <br />a "paper <br />subsidence <br />presented <br />rewarding <br />monitoring program has been <br />or similar type occur <br />g schedule. This wi <br />o meet its monitoring <br />violation". It ha <br />data that can be <br />in the permit. To <br />exercise. <br />modified to reflect that <br />11 provide the operation with the <br />s and is TCC's intent to obtain <br />rences at the mine can impact the <br />requirements and not get caught in <br />used to verify the projections <br />date this has been an exceedingly <br />If there are questions, please contact me at your convenience. <br />Sincerely, <br />Richard Mills <br />Supervisor, Environmental Affairs <br />attachments <br />c~~us <br />