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TWEN~YMILE COAL C~IIPAP III IIIIIIIIIIIIIIII <br />SUBSIDIARY OF GETTY OIL COMPANY <br />P.O. Box 897 • 29515 Routt County Road 27 • Oak Creek, Colorado 80467 <br />Telephone: (303) 879.8050 <br />RECEI~Ei' <br />August 13, 1985 AUG 1 ~ 1~f~ <br />MIrvEG LHNp <br />RECLAMATION DIVISION <br />Mr. Dan Mathews <br />Colorado Mined Land Reclamation Division <br />1313 Sherman St. <br />423 Centennial Building <br />Denver, CO 80203 <br />RE: Subsidence Monument Survey Report for Twentymile Coal <br />Company, Foidel Creek Mine File No. C-82-056 <br />Dear Mr. Mathews, <br />Please find enclosed two copies of the 1985 Mid Year <br />Subsidence N,onument Survey Report for the Foidel Creek Mine. <br />It is proposed to survey the three monuments at Foidel <br />Creek (FC-2, FC-3 and FC-4) and the three spoil stability monuments <br />(SP-2, SP-3 and SP-9) annually, unless visible instability or the <br />CMLRD require more frequent surveying. Justification for this site <br />specific reduction is presented in the report and more frequent <br />surveying is not considered nece=sary at this point in time. <br />Could you please confirm if this site specific modification <br />to the subsidence monitoring program is acceptable. <br />Sincerely, <br />%k^"'" ~! <br />Richard Wright <br />RW/jag <br />Enclosure <br />