2009-09-10_HYDROLOGY - C1982056 (3)

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STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 September 10, 2009 Brian Watterson Twentymile Coal Company Foidel Creek Mine 29515 Routt County Road No. 27 Oak Creek, CO 80467 RE: Foidel Creek Mine, C 1982-056, Second Quarter 2009 Pond Inspection Reports Dear Mr. Watterson: COLORADO D I V IS I ON OF RECLAMATION MINING SAFETY Bill Ritter, Jr. Governor Harris D. Sherman Executive Director Ronald W. Cattany Division Director Natural Resource Trustee Twentymile Coal Company (TCC) submitted Second Quarter 2009, Pond Inspection Reports on July 27, 2009. The ponds were inspected June 30, 2009. Ponds D, wastewater treatment ponds, Fish Creek Borehole and Fish Creek Tipple Pond were discharging during the inspection. Maintenance items identified during the second quarter 2009 inspection primarily involved the need to conduct weed control measures adjacent to the ponds. The second quarter 2009 reports continue to note that weeds need to be cleared around the pond B weir, cattails need to be cleared away from the pond D weir. The report notes that vegetation was cleared from the pond F flume area. Construction on the 6MN Mine water reservoir has been almost completed. The pumping station and piping at the 6MN reservoir remain to be completed. Once construction is complete, please provide as- built reports for the 6MN reservoir. No maintenance items beyond weed control measures were noted for any of the ponds. The reports are in compliance with Rule 4.05.6(13). Thank you for prompt submittal of these reports. Sincerely, Protection Specialist II Q 2009.doc Office of Office of Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines