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DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866 -3567 <br />FAX: (303) 832 -8106 <br />October 5, 2011 <br />Brian A. Watterson <br />Twentymile Coal Company <br />29515 Routt County Road #27 <br />Oak Creek, CO 80467 <br />RE: Twentymile Coal Company, Permit C -82 -056 <br />Third Quarter Sediment Pond Inspection Report 2011 <br />Dear Mr. Watterson, <br />The Colorado Division of Reclamation, Mining, and Safety (CDRMS) has reviewed and found the <br />above referenced report to be in compliance with the following CDRMS regulation: <br />4.05.9(17) — Examined at least quarterly by a qualified person designated by the operator, for <br />appearance of structural weakness and other hazardous conditions. <br />4.05.9(17) — A copy of the report shall be submitted to the Division on a quarterly basis. <br />The third quarter sediment pond inspection reports were received by the Division on 04 October 2011. <br />Sediment pond inspections were conducted by TCC during the fourth week of September 2011. <br />It is noted that maintenance items required include; clearing cattails at Pond D and Pond T. <br />Maintenance items addressed this quarter include; weed spraying at Pond B, Pond C, Area 1 Pit, Fish <br />Creek Borehole Pond, Wastewater Treatment Pond 1, and Wastewater Treatment Pond 3; grass <br />clearing at the weir of Pond E. <br />The Waste Water Treatment Pond #l, #2, #3, final polishing pond, Pond D, and the Fish Creek Tipple <br />Pond were discharging at the time of the inspections. <br />If you have any questions feel free to contact me. (303) 866 -3567 ext 8134 <br />Sincerely, <br />Jason M>k <br />Environmental Protection Specialist <br />Office of <br />Mined Land Reclamation <br />STATE OF COLORADO <br />COLORADO <br />D I V I S I O N O F <br />RECLAMATION <br />MINING <br />_.._ &— <br />SAFETY <br />John W. Hickenlooper <br />Governor <br />Mike King <br />Executive Director <br />Loretta E. Pineda <br />Director <br />Office of <br />Denver • Grand Junction • Durango Active and Inactive Mines <br />