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III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department o! Natural Rewurces <br />1313 Sherman 81., Room 215 <br />Denver, Colorado 80203 <br />Phone: 13031 8663567 <br />FAX: (3031 832-8106 <br />November 25, 1994 <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br />Mr. Rick Mi11S Roy Romer <br />Governor <br />TWentymile COa1 CO. lames S. LOChhead <br />29587 Routt Co. Rd. # 27 Ezecuhve Dvedor <br />Oak Creek, CO. 80467 Michael e. Long <br />Division Director <br />RE: Semi-Annual Subsidence Report, Jan.- June 1994, Foidel Creek <br />Mine, #C-82-056 <br />Dear Mr. Mills: <br />The Division has completed review of TCC's responses dated November <br />2, 1994 to the Division's questions of September 6, 1994 concerning <br />the above-mentioned report for the Foidel Creek mine. <br />We have no further questions at this time. Vegetation data will be <br />forwarded to a specialist for review in conjunction with PR-03 <br />review. Any remaining questions will be handled through a field <br />check. However, we have the following comments: <br />It appears that subsidence along Fish Creek AVF has progressed <br />approximately as predicted by TCC. However, TCC states that the <br />water level in GWA-7 appears to reflect the fact that the well has <br />been subsided. If the measuring point is the top of the casing, <br />the water depth should be the same or in fact, less, than prior to <br />subsidence. GWA-7 water level appears to be suppressed due to <br />subsidence. However, no significant loss of flow could be detected <br />at this time in the surface system or alluvial system. <br />Please continue to conduct monitoring precisely as required by your <br />approved permit. <br />Thank you for your continued cooperation. <br />Sin ~y/,~~ <br />Ke t A. Gorham <br />Environmental Protection Specialist <br />cc: David Berry, DMG <br />