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<br />~, <br />~ II I I II I II I II IIII III STAT~ OF COLORADO <br />MINED LAND RECLAMATION DIVISION of ~o~ <br />Department of Natural Resources ti~-~'~ ~q~ <br />Ne <br />1313 Sherman St.. Room 215 <br />D ~ ,.~ `...~' r; <br />~;~J <br /> <br />enver, CO 80203 : <br />i <br />303 866-3567 •1 <br />6• <br />FA%:303 832-8106 87 <br />Roy Romer, <br />Governor <br />Freo R. Banta. <br />Division Director <br />October 7, 1991 <br />Mr. Marcus Middleton <br />Twentymile Coal Co. <br />29587 Routt County Road No. 27 <br />Oak Creek, CO 80467 <br />Re: Review, Annual Hydrologic Report, 1990 Water Year, C-8Z-056 <br />Dear Mr. Middleton: <br />The Division has reviewed the above referenced Annual Hydrologic Report for <br />the Foidel Creek Mine. Please respond to this letter at your earliest <br />convenience. <br />General Comments and Errors/Omissions <br />1. Scme of the Division's questions are identical to the Eckman Park and/or <br />Mine 3 AHR reviews. Although it may seem redundant, please respond with <br />the appropriate answer for record keeping purposes. <br />Monitoring frequency <br />Bedrock Wells <br />1. Well 006-BRDH7 had no level readings and only one field parameter <br />measurement done. Please explain. <br />2. There were no measurements done on well 008-75-EFC. Please explain this <br />omission. <br />3. The level reading for May is missing for well 001-83-107. Please <br />explain. <br />4. The 1990 level readings for well 001-83-106 are missing. Please explain <br />Alluvial Wells <br />1. The July sample for We11 006-AW-2 is missing. Please explain this <br />omission. <br />2. We11 008-AV-1 has no readings after 4/90. Please explain this <br />discrepancy. <br />