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<br />III IIIIIIIIIIIII III <br />STATE OF COLOR~llO <br />Roy Romer, Governor <br />DEPARTMENT OFNATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />FRED R. BANTA, Dlr~ctor <br />June 19, 1989 <br />Mr. Jim Stover <br />Blue Ribbon Coal Company <br />743 Horizon Court, Suite 205 <br />Grand Junction, Colorado 81506 <br />RE: Technical Revision 4, Blue Ribbon Mine, C-81-047 <br />Dear Mr. Stover: <br />The Colorado Mined Land Reclamation Division <br />technical revision application to modify the <br />100 year-24 hour event. The Division accepts <br />the adequacy response. Actual on-the-ground <br />plans must be completed by August 15, 1989. <br />proposes to approve <br />refuse pile ditches <br />the rip-rap design <br />your <br />to handle a <br />submitted in <br />implementation of the submitted <br />The Division's adequacy questions also discussed the lifetime of the north and <br />west drainage structures with regard to the 100 year-24 hour event. Following <br />considerable internal discussion about Blue Ribbon's responses and the <br />topography at the site, the Division has come to the conclusion that both <br />drainage structures will be removed when adequate vegetative cover is achieved <br />at the site, and that the adjacent natural drainages will assume any surface <br />runoff from the site. Thus, Pond 5, Ditch A, the north-side culvert, and the <br />"V-ditch" which connects the culvert and Ditch A will be removed. Ditch B-C, <br />the drainage ditch on top of the bend, will be a permanent installation and <br />will eventually drain to the unnamed drainage to the north. <br />Notice of our proposed decision will be published as soon as possible. The <br />publication will initiate the ten (10) day public comment period for the <br />Division's decision. <br />If you have any questions, please feel free to contact me. <br />Sincerely, <br />Matthew S. Hayes <br />Reclamation Specialist <br />MSH/scg <br />Enclosure(s) <br />cc: Cathy Begej <br />7 318E <br />215 Centennial Building, 1313 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866-3567 <br />