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III IIIIIIIIIIIII III ~ <br />999 <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmenl of Nalu ral Resources <br />1313 Sherman SI., Room 215 <br />Denver, Colorado 80203 <br />Phone: 13031 866-3567 <br />FAX: (303) 8328106 <br />September 17, 1996 <br />Mr. Larry Reschke <br />Powderhorn Coal Company <br />P.O. Box 1430 <br />Palisade Colorado 81526 <br />STATE OF COLORADO <br />RE: 1995 Annual Hydrology Report <br />Roadside Mine (C-81-041) <br />Dear Mr. Reschke: <br />~~ <br />I~~~ <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br />Rov Romer <br />Governor <br />Ian,es s. L«nneaa <br />E~ecmive Director <br />Michael B Lonp <br />Die i~ian Due<lor <br />Our staff has reviewed the above referenced AHR, and we have the <br />following requests: <br />1) Page 2, second paragraph indicates that the 0.000's shown on <br />data pages indicate times when the flow was below the minimum <br />recording level of the recorder (surface flow). Please amend the <br />text to specify the minimum recording level of the recorder. <br />2) Page 4, paragraph 3 indicates that certain wells showed an <br />increase in water level of 3 to 9. Please amend the text to <br />specify the referenced units of measurement. <br />3) Page 4, paragraph 3 indicates that the small size of the <br />piezometers make some of the water levels difficult to measure; <br />therefore, some of the water level data are not available. Since <br />measurement of water levels is the purpose of the piezometers, the <br />problematic piezometers should be identified and replaced with <br />piezometers of sufficient diameter. <br />4) AHR narrative should be amended to explain why water levels <br />were not reported for UTL wells for the quarters beginning October, <br />1994, and January, 1995, and why flow data was not reported for <br />June and July, 1995, for Surface Water Sta. SWGS-03. <br />Please respond to these issues at your earliest convenience. Feel <br />free to ca me if you have any questions. <br />Sincere <br />V ;~ Z, <br />Dan T. Mathe <br />Environmental Protection Specialist <br />cc: Larry Routten, DMG <br />