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<br /> <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />John W. Hickenlooper, Governor | Robert W. Randall, Executive Director | Virginia Brannon, Director <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Re: Colowyo Coal Mine (Permit No. C-1981-019) <br /> Technical Revision No. 129 (TR-129) <br /> Adequacy Review <br /> <br />Dear Mr. Tennyson: <br /> <br />After reviewing TR-129 from Colowyo Coal Company L.P. (Colowyo), the Division has the following <br />comments: <br /> <br />1. For the Division’s review, please provide an updated Fill Survey Monument Report and Graphs <br />to include up to the 2018 Fourth Quarter. These reports and graphs are normally provided with <br />Colowyo’s Annual Reclamation Report under Figures 3-2 and 3-3. <br /> <br />2. In the provided document, the West Pit Fill Final Construction Report, it states that the design, <br />instrumentation, and monitoring requirements for the West Pit Fill are discussed under Volume 5B, <br />Exhibit 19, Section IIB. This appears to be a typo since this reference is for the Section 16 Fill and <br />the West Pit Fill is discussed under Volume 5B, Exhibit 19, Section IB. Please provide an updated <br />West Pit Fill Final Construction Report with the correct reference. <br /> <br />3. After reviewing the provided Change Sheet for TR-129, there are notes for revised Volume 5B, <br />pages I a-1 through I a-4 however these revised pages were not included with the TR-129 <br />application. Please provide the proposed Volume 5B, pages I a-1 through I a-4. <br /> <br />4. The Division respectfully requests that the updated document, the West Pit Fill Final Construction <br />Report, be included into the Colwoyo PAP, under Volume 5B, Exhibit 19, Section I, following page <br />I a-4 for additional documentation. If the above mentioned document is included into the Colowyo <br />PAP, please rename the provided Map 1 and associated reference within the document to avoid <br />confusion with the approved Map 1 – Surface Ownership. <br /> <br />If you have any questions, feel free to contact me at any time. <br /> <br />Sincerely, <br /> <br /> <br /> <br /> <br />December 31, 2018 <br /> <br />Tony Tennyson <br />Colowyo Coal Company L.P. <br />5731 State Highway 13 <br />Meeker, CO 81641 <br /> <br />