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Colowyo Coal Company <br />F 5731 State Highway 13 <br />o Meeker, CO 81641 <br /> T:970-824-1529 <br />Mr• <br /> <br />0 February 11, 2011 <br />Mrs. Janet Binns <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />?001"0o <br />ION <br />n, <br />\v <br />15 * <br />RE: Technical Revision - 89, Permanent Stock Tanks- Phase III Bond Release, Colowyo <br />Coal Mine, Permit No. C-1981-019. <br />Dear Mrs. Binns: <br />Enclosed please find two copies of materials provided for Technical Revision - 89. This <br />revision updates Colowyo's permit to reflect the permanency of the livestock tanks in the <br />Phase III bond release area. In addition to the requested documentation to indicate <br />compliance with Rules 4.05.9 (13) and 2.05.5(1)(b), Colowyo has also enclosed a letter <br />from the landowner requesting that these impoundments remain to support post-mining <br />land use. <br />Per our phone discussion on February 9, 2011, two figures (Exh 7 Item 13 Figures 1 and 2) <br />for this technical revision will be delivered separately from this package. They will arrive <br />in a timely manner which should coincide with receiving this package. These figures to <br />be included with this package are reflected on the change sheet also to ease incorporation <br />in to the permit document. <br />A copy of the updated pages, an application form, a copy of the public notice, and a list of <br />changes has been included to ease incorporation into the permit. If you have any <br />questions or require additional information, please feel free to contact me at your <br />convenience at (970) 824-1532. <br />Sincerely, <br />Tony Tennyson <br />Environmental Engineer <br />Encl. 2 copies <br />Cc: file CF 1.1.2.78 <br />Colowyo Coal Company • 5731 State Highway 13 • Meeker, CO 81641 <br />T+ 1 970 824 1529 • F+ 1 970 824 1598 • http://prospect.riotinto.org/irj/portal