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STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Na[ural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />DIVISION OF <br />RECLAMATION <br />MINING <br />- &- <br />SAFETY <br />Interoffice MEMORANDUM Bill Ritter, Jr <br />Governor <br />Harris D. Sherman <br />to: File Executive Director <br />from: Byron G. Walker Ronald W. Cattany <br />Division DireROr <br />subject: Review of Impoundment Inspection Reports Natural Resource Trustee <br />Permit: C-1982-056, 1S1 Quarter 2007 <br />date: April 27, 2007 <br />This review is conducted to determine compliance with Rule 4.05.9(17). The subject quarterly <br />inspections reports, dated 3/27 or 30/07, arrived at the Division of Reclamation, Mining and <br />Safety on April 5, 2007, under a letter Peabody Twentymile Coal Company letter of Apri13, <br />2007. <br />Inspection reports were submitted for Ponds B, C, D, E, F, G, T, FCT, 115 FCBH, Area #1 pit, <br />thickener underflow, Waste Water Treatment Ponds 1, 2, 3 and 4 (polishing), and 6MN. <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 prepaze the reports? Yes, Brian Watterson, a <br />qualified person, accomplished the inspections. The reports were certified by Michael W. <br />Ludlow, a registered professional engineer in the State of Colorado. <br />The reports also included information on sediment levels, any required maintenance, and <br />maintenance accomplished. A number of maintenance items were recorded. None of these items <br />aze hazazdous conditions or structural weaknesses. <br />C:\bgw\My Documents\Foidel Creek\Inspections\impoundments\Pnd Insp Rpt, Ist qtr 07 <br />rvw.doc <br />Office of Office of <br />Mined Land Reclamation Denver Grand Junction Durango Ac[ive and Inactive Mines <br />