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COLORADO <br />Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />February 25, 2021 <br />Tony Tennyson <br />Colowyo Coal Company L.P. <br />5731 State Highway 13 <br />Meeker, CO 81641 <br />Re: Colowyo Coal Mine (Permit No. C-1981-019) <br />Minor No. 230 (MR-230) <br />Adequacy Review <br />Dear Mr. Tennyson: <br />After reviewing Colowyo Coal Company L.P. (Colowyo) response to the Divisions adequacy letter for MR <br />230, the Division has the following comments: <br />1. Item has been satisfied. No additional comments required. <br />2. The Division has performed a reclamation cost estimate to reclaim the additional 7 m.c.y. spoil from <br />the Collom Temporary Spoil Pile associated with the Collom Pit. The total value of this estimate is <br />$11,439,878.00 (see attached cost estimate). The Division's cost estimate is consistent with previous <br />cost estimates approved by both the Division and Colowyo. The Division respectfully requests a <br />response from Colowyo with any questions regarding the cost estimate or an acceptance of the <br />Division's estimate. <br />If you have any questions, feel free to contact me. <br />Sincerely, <br />Zach Trujillo <br />Environmental Protection Specialist <br />(303) 866-3567 ext. 8164 <br />Zach.Trujillogstate.co.us <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 http://mining.state.co.us <br />Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director <br />