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<br />-. iiiiiiiiiiiiiiiiiii <br />~~~°~~ _ STATE OF CC-~~URADO <br />Roy Romer, Governor <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />August 10, 1987 <br />Mr. William Balaz <br />Kaiser Steel Corporation - Coal Group <br />102 South Tejon, Suite 800 <br />Colorado Springs, Colorado 80903 <br />Re: Chimney Rock Mine - 1986 Annual Hydrologic Report - File No. C-81-023 <br />Dear Mr. 8alaz: <br />The Division has completed the review of the referenced report. The report <br />indicates that at this time, the Chimney Rock Mine is not impacting the <br />surface or ground water regimes. <br />During this review, two areas of concern were identified for future monitoring <br />and reporting: <br />1. As noted in correspondence dated May 7, 1986, the operator should <br />conduct an alluvial spring and seep survey of the reclaimed East <br />Pit. Mine personnel should walk the east side of this reclaimed <br />area shortly after Stollsteimer Creek peak flow has occurred. Any <br />springs or seeps issuing from this area should be plotted on a <br />map. An estimate of discharge should also be made at the time of <br />the field visit. If no springs or seeps are observed, this should <br />be noted as this is an equally important observation. <br />2. Alt coal operators in Colorado are being actively encouraged to <br />structure the data collection period around a water year (October 1 <br />through September 30). Organizing the data collection period <br />around a water year will not change the times when data is <br />collected or the time of report submittal. It will merely change <br />the beginning and end time of the data collection period. <br />Operators are encouraged to use the water year format to allow for <br />ease of data comparison between mining operations, and between mine <br />sites and national data bases. Furthermore, the concept of a water <br />year data collection period is founded in accepted hydrologic <br />principles. <br />Kaiser Coal is requested to change the data collection reporting <br />period from a calendar year as currently done to a water year. <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 888-3587 <br />