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February 5, 2009 RECEIVED <br />Mr. James R. Stark FEB ? Z 2009 <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety Olrition of rzeaamation, <br />Department of Natural Resources Op and Safely <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: Technical Revision No. 76, Update to Map 23 - Mine Plan - South Area, With the <br />Addition of the proposed South Taylor Haul Road and the addition of Map 25C - South <br />Taylor Haul Road, Colowyo Coal Mine, Permit No. C-1981-019 <br />Dear Mr. Stark, <br />Enclosed please find two copies of materials provided for Technical Revision No. 76. This <br />change updates Map 23 - Mine Plan - South Area to include the proposed South Taylor Haul <br />Road and adds Map 25C - South Taylor Haul Road to the permit. Map 25C provides design <br />criteria for the new haul road. <br />In order to meet the demands of Colowyo's constantly changing mining operation, Colowyo will <br />need to construct a haul road that will reduce the haul length to and from the South Taylor Pit for <br />both the overburden haul trucks and the coal haul trucks as well as giving other mining related <br />equipment a more direct and economical route from the main office/shop area to the South <br />Taylor Pit. This proposed haul road will be constructed within the disturbance boundary but <br />outside the active mining boundary. <br />The haul road will meet design and construction criteria set forth in Rule 4.03.1(3) and will be <br />certified by a qualified registered professional engineer, except as provided for in Rule <br />4.03.1(1)(d)(ii). All prudent dust control practices will be followed to comply with Rule 4.17. <br />Please refer to Map 25C for information regarding this haul road. A small portion of this haul <br />road will be constructed in-pit and, therefore, does not need to be permitted but will comply with <br />Rule 4.05.2(4) and meet all requirements put forth by Rule 4.03.1(4)(b)-(e) in order to minimize <br />erosion, resultant siltation and disturbance to the hydrologic balance. <br />Included with the revision package are an application form, the public notice and an index sheet <br />along with additional replacement materials that will aide the Division with incorporating this <br />TR into the current permit. <br />Should you have any questions or require additional information, please feel free to contact me at <br />(970) 824-1578. <br />Colowyo Mine • 5731 State Highway 13 • Meeker, Colorado 81641 <br />T +1 970 824 1500 • F +1 970 824 1504 • www.rtea.com <br />Ryan Pawlowski <br />Environmental Engineer <br />(970) 824-1578