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Public service <br />• <br />November 5, 1996 <br />Mr. Rick Mills <br />TWENTYMILE COAL COMPANY <br />29515 Routt County Road 27 <br />Oak Creek, CO 80467 <br />_II I _I II I II I II IIII III <br />Doc Date:12/11/2001 <br />Public Sarvlee <br />Company o/ Colorado <br />Electric Transmission and <br />Substation Engineering <br />550 15th Street, Sude 600 <br />Denver, CO &7202-0256 <br />FAx: (303) 571-7666 <br />Subj: Subsidence of PSCo's Wolcott Tap-Wolcott 230kV Transmission Line by Foidel Creek Mine East <br />Expansion. <br />Dear Mr. Mills: <br />This letter is to inform you that PSCo has inspected the first two structwes to be subsided by the mining <br />of the Foidel Creek Mine East Expansion. One structure, #85, is above the 9 right panel, the other <br />structure, #86, is over the 8 right panel. The structures are in good condition, with all the hardware intact <br />and the poles essentially plumb. The hardware were tightened so the structures are now in the condition <br />as they were designed to be. Attached is a copy of the inspection report for these two structures. <br />• There is a discrepancy in the numbering of the structures on the Wolcott Tap-Wolcott line. The structure <br />numbers on the Plan & Profile drawings appears to be one (1) number off from the numbers on the <br />structures in the field. The structure above the 9 right panel is marked number 84 on the structure, but is <br />numbered 85 on the Plan & Profile drawing. The structure above the 8 right panel is marked number 85 <br />on the structure, but is numbered 86 on the Plan & Profile drawing. This information is provided to <br />prevent confusion in the future when we correlate the structures to the mining panels. <br />If you have any questions or comments, please call me at (303)571-7289. <br />Sincerely, <br />~~ <br />Cary Y~ <br />Civil Engineer <br />cc: D. Sabatka <br />L. Weaver <br />~7 <br />• <br />