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III IIIIIIIIIIIII III <br />999 <br />Ei~q <br />SCCalCnmpany Seneca Coal Company <br />~~i_.r~~}i1-L7 <br />JAN p 2 1998 <br />:.J ivy°axi pi i;,inera'!s R u~,;:~... <br />• ~• December 30, 1997 <br />Mr. Jim Burnell <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203-2273 <br />RE: Yoast Mine Permit C-94-082, TR07 <br />Dear Mr. Burnell: <br />This correspondence is to waive the current December 30, 1997 <br />decision deadline for TR07 to the Yoast Mine Permit C-94-082. <br />This technical revision provides the as-built design and <br />certification for Diversion Ditch No. 2. <br />Seneca was able to finish laying back the existing slopes to a <br />more stable condition. We have just completed the revised set of <br />as-built calculations for Diversion Ditch No. 2 and this package <br />is being sent to the Division under a separate cover. To allow <br />the Division time to review the new material, Seneca requests a <br />20-day extension of the deadline to January 19. <br />Should you or any other members of the Division have any <br />questions regarding this information, please do not hesitate to <br />contact me. <br />Sincerely, <br />Michael G. Altavilla, P.E. <br />Engineering Manager <br />Enclosure(s) <br />c: Gary Wendt (PWCC) <br />Seneca Coal Company • P.O. Drawer D • Hayden, Colorado 81639 <br />Telephone (970) 27&3707 • FAX (970) 276.3014 <br />