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<br /> <br />1313 Sherman St. Room 215 Denver, CO 80203 P (303) 866-3567 F (303) 832-8106 https://drms.colorado.gov <br />Jared Polis, Governor | Dan Gibbs, Executive Director | Michael A. Cunningham, Director <br />October 27, 2025 <br /> <br />Chris Gilbreath <br />Tri-State Generation and Transmission Association <br />1100 West 116th Avenue <br />Westminster, CO 80234 <br /> <br />Re: Colowyo Coal Mine (Permit No. C-1981-019) <br /> Issuance – Surety Increase No. 2 (SI-2) <br /> Bond Increase Resulting from MT-09 Review <br /> <br />Dear Mr. Gilbreath: <br /> <br />The Division of Reclamation, Mining and Safety's Proposed Decision to approve Surety Increase <br />No. 2 at the Colowyo Coal Mine became final on October 25, 2025. Notice of the proposed <br />decision was published in the CO Mountain News Media - Craig Daily Press on September 24, <br />2025, initiating the thirty (30) day public comment period for the Division's decision. No comments <br />were received during the comment period. <br /> <br />If you have any questions, please contact me. <br /> <br />Sincerely, <br /> <br /> <br /> <br /> <br />Hunter R. Kragenbrink <br />Environmental Protection Specialist <br />Hunter.kragenbrink@state.co.us <br /> <br />cc: Marcelo Calle, Office of Surface Mining <br /> Charlie Kwak, Office of Surface Mining <br />C-SI-08