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t] <br />TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. <br />HEADQUARTERS: P.O. BOX 33695 DENVER, COLORADO 80233-0695 303-452-6111 <br />Mr. Zach Trujillo <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining & Safety <br />Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />RE: Colowyo Coal Company L.P. <br />Permit No. C-1981-019 <br />Minor Revision No. 161 <br />Monitoring Wells <br />Dear Mr. Trujillo, <br />September 30, 2016 <br />RECEIVED <br />OCT '� 2016 <br />DIV&ON OF RECLAMATION <br />MINING A.l,D SAFETY <br />Tri-State Generation and Transmission Association Inc. (Tri-State), is the parent company to <br />Axial Basin Coal Company, which is the general partner to Colowyo Coal Company L.P. (Colowyo). <br />Therefore, Tri-State on behalf of Colowyo is submitting this adequacy response for minor revision 161 <br />(MR -161) for Permit No. C-1981-019. Tri-State received your adequacy letter dated September 23, 2016, <br />and has prepared the following response: <br />1. The Division has performed a reclamation cost estimate to reclaim the addition of the Trout <br />Creek and MLC -04-02 groundwater monitoring wells. The total value of this estimate is <br />$5,429.14 (see attached cost estimate). The Division's cost estimate is consistent with <br />previous cost estimates approved by both the Division and Colowyo. The Division <br />respectfully requests a response from Colowyo with any questions regarding the cost estimate <br />or an acceptance of the Division's estimate. <br />Response: Tri-State and Colowyo have reviewed the reclamation cost estimate prepare by the <br />Division, which proposes an increase in the overall reclamation liability by $5,429.14, and hereby <br />provide concurrence with the cost estimate as provided. <br />If you should have any additional questions or concerns please feel free to contact Tony <br />Tennyson at (970) 824-1232 at your convenience. <br />DJC:TT:dbr <br />Enclosure <br />AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER <br />A Touchstone Energy' Cooperative <br />Sincerely, <br />Daniel J. Casiraro <br />Senior Manager <br />Environmental Services <br />CRAIG STATION ESCALANTE STATION NULLA STATION <br />P.O. BOX 1307 Y.O. BOX 577 P.O. BOX 698 <br />CRAIG, CO 81626-1307 PREW IT, NM 87045 NUCLA, CO 8142440698 <br />970-8244111 505-972-5200 970-864-7316 <br />