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STATE OF COLORADO <br />DIVISION Of MINERALS AND GEOLOGY <br />Oepanment of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 8663567 <br />FAX: (303) 832$106 <br />Interoffice MEMORANDUM <br />to: File <br />from: Byron G. Walker <br />subject: Review of Sedimentation Pond Inspection Reports <br />Permit: C-1982-056, Is` Quarter 2005 <br />date: July 14, 2005 <br />COLORADO <br />DIVISION O r <br />MIN SRALS <br />GEOLOGY <br />0.EClAN ATION•HINING <br />SAFE TY•ECIENCE <br />Bill Owens <br />Governor <br />Russell George <br />Ezecuiive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />The subject reports, submitted on a quarterly basis, dated Mazch 25 and Mazch 30, 2005, were <br />submitted under a cover letter dated March 30, 2005, and received at the Division on April 21, <br />2005. This review is conducted to determine compliance with Rule 4.05.9(17). Inspection reports <br />were submitted for Ponds B, C, D, E, F, G, T, the FCT, and the FCBH. No reports were <br />submitted for the pit pond, coal process pond, 18-Right cuttings impoundment, the evaporative <br />impoundment at the Fish Creek Tipple, and the sewage treatment ponds. A letter has been sent to <br />the operator. <br />Were the ponds inspected for structural weakness? Yes [included differential settling, cracks or <br />slides, seepage, erosion (included rills and gullies on embankments, inadequate vegetation, outlet <br />channel erosion, burrows and other)]. <br />Were the ponds inspected for other hazardous conditions? Yes (included defective spillways, <br />dewatering device clogged, faulty gate, baffles, pumps, and other). <br />Did a qualified person designated by the operator prepare the reports? Yes, Sandra White, a <br />qualified person, accomplished the inspections. <br />The reports also included information on sediment levels and any required maintenance. <br />Maintenance had been scheduled for Pond C, and maintenance had been accomplished at Pond F. <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />