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iii iiiiiiiiiiiu iii <br />~~~~P `~ <br />E~~.4 <br />~~ CoalCompeny Seneca Coal Company <br />~ °` ~~. <br />~,~- <br />Mr. Jim Burnell <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203-2273 <br />December 30, <br />RE: Yoast Mine Permit C-94-082, TR07 <br />Dear Mr. Burnell: <br />1997 <br />RECEIVED <br />DEC 31 1997 <br />Division of hunerais 4 vsoi~r,;~ <br />Enclosed please find three copies of revised material related to <br />the application for TR07 to the Yoast Mine Permit C-94-082. This <br />technical revision submits the as-built design and certification <br />for Diversion Ditch No. 2. <br />The Division requested that the side slopes of the diversion be <br />pulled back and reshaped so that they were more stable. The <br />diversion ditch has since been reconstructed per the Division's <br />request. The SEDCAD+ information being submitted is for several <br />sections of the as-built ditch after it was surveyed on October <br />27th. <br />Enclosed are the insertion <br />revised materials. Should <br />Division have any questions <br />not hesitate to contact me. <br />instructions into the PAP, and the <br />you or any other members of the <br />regarding this information, please do <br />Enclosure(s) <br />c: John Husband (BLM) <br />Larry Kline (OSMRE) <br />Gary Wendt (PWCC) <br /> <br />Sincerely, <br />Michael G. Altavilla, P.E. <br />Engineering Manager <br />Seneca Coal Company • P.O. Drawer D • Hayden, Colorado 81639 <br />Telephone (970) 276-3707 • FAX (970) 276-3014 <br />