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III IIIIIIIIIIIIIIII <br />STATE OF COLORADO <br />Roy Romer, Governor <br />DEPARTMENT OF NATURAL RESOURCES <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTON, Director <br />April 14, 1987 <br />Mr. John G. Althouse <br />Mine Engineer <br />Coors Energy Company <br />P.O. Box 359 <br />Keenesburg, Colorado 80643 <br />Re: Keenesburg Mine - Quarterly Sedimentation Pond Inspection - Rule <br />4.05.6(11)(C) - File No. C-81-028 <br />Dear Mr. Althouse: <br />The number of required inspections of Sedimentation Ponds 1 and 2 may be <br />reduced from four (4) per year to one (1) per year. The Division prefers that <br />the annual inspection be done during the third quarter. Until the <br />sedimentation ponds have been reclaimed, an annual inspection of their <br />structural condition should be made. Reference should also be made to the <br />level of water and sediment present, and any discharge noted. <br />Please retain a copy of this letter in your file in case you are questioned on <br />this matter by an inspector. <br />If you have any question, please call me. <br />Sincerely, <br />Thomas A. Schreiner <br />Reclamation Specialist <br />TAS/v j r <br />8878E <br />423 Centennial Building, 1373 Sherman Street Denver, Colorado 80203-2273 Tel. (303) 866.3567 <br />