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:A <br />• Illllllllllllllllll • <br />DEPARTMENT OF NATURAL RESOURCES <br />David H. Getches, Executive Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />Richard D. Lamm <br />Governor <br />January 12, 1984 <br />T0: ,Dan Mathews <br />FROM: Roy L. Cori •~ <br />RE: Monitoring Red cti n and Review of the Annual Hydrologic Report for <br />the Grand Mesa Coal Company, Red Canyon Mine, File No. C-034-81 <br />The annual hydrologic report submitted by Grand Mesa Goal Company for the Red <br />Canyon Mine contains a compilation of water quality analyses, ground water <br />levels, and flow measurements. This report does not contain 1) analyses of <br />the data collected since the Kaman Tempo Report, September, 1982, <br />or 2) assessments of the impacts which the mine is having on the hydrology in <br />the permit and adjacent areas. The locations of mine inflows should be mapped <br />on an up-to-date mine workings map and included as part of the annual report. <br />Grand Mesa Coal Company should analyze the hydrologic data which it collects. <br />This analysis should then be used in assessing the Hydrologic impacts of the <br />Red Canyon Mine (see draft findings document, Stipulation No. 4). These <br />analyses (reductions of data) and assessment should be submitted to the <br />Division as the annual hydrologic report. <br />The applicant's request for monitoring reduction is warranted. Attachments A <br />and B contain those reductions which I deem appropriate at this time. Further <br />reductions may be granted after reviewing submittals of future data and <br />hydrologic reports. <br />/mt <br />Attachments <br />cc: Brian Munson <br />Jim Herron <br />Doc. No. 8524 <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. (303) 866-3567 <br />