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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Department of Natural Resources <br />7313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 8663567 <br />FAX: (303) 832A706 <br />Interoffice MEMORANDUM <br />to: Fite <br />from: Byron G. Walker <br />subject: Review of Impoundment Inspection Reports <br />Permit: C-1982-056, 1st Quarter 2006 <br />date: May 12, 2006 <br />COLORADO <br />DIVISION p F <br />MINERALS <br />GEOLOGY <br />0.ECLANATIGN•MINIHG <br />EArETT•ECIENCE <br />Bill Owens <br />Govemw <br />Russell George <br />Executive Direcor <br />RGrlald W, Canany <br />Division Director <br />Natu21 Resource Trustee <br />This review is conducted to determine compliance with Rule 4.05.9(17). The subject quarterly <br />inspections reports, dated 3/14/06 or 3/20/06, arrived at the Division of Minerals and Geology on <br />May 4, 2006, under a letter dated April 26, 2006. <br />Inspection reports were submitted for Ponds B, C, D, E, F, G, T, FCT, FCBH, Area # 1 pit, <br />thickener underflow, FCT Waste Water, and Waste Water Treatment Ponds 1, 2, 3 and 4 <br />(polishing). <br />Were the ponds inspected for structural weakness? Yes [included differential settling, cracks or <br />sides, seepage, erosion (included rills and gullies on embankments, inadequate vegetation, outlet <br />channel erosion, burrows and other)]. However, snow inhibited some observations. <br />Were the ponds inspected for other hazardous conditions? Yes (included defective spillways, <br />dewatering device clogged, faulty gate, baffles, pumps, and other). However, snow inhibited <br />some observations. <br />Did a qualified person designated by the operator prepare the reports? Yes, Brian Watterson, a <br />qualified person, accomplished the inspections. <br />The reports also included information on sediment levels and any required maintenance. A need <br />for maintenance appears to be developing at the Waste Water Treatment ponds. <br />Office of Office of Colorado <br />Mined Land Reclamation Active and Inactive Mines Geological Survey <br />