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TRI-STATE GENERATION AND TRANSMISSION ASSOCIATION, INC. <br /> HEADQUARTERS: P.O. BOX 33695 DENVER, COLORADO 80233-0695 303-452-6111 <br /> August 16, 2019 <br /> Ms. Janet Binns <br /> Environmental Protection Specialist <br /> Colorado Division of Reclamation, Mining and Safety <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 RECEIVED <br /> RE: New Horizon North Mine (Permit No. C-2010-089) AUG 19 2019 <br /> Technical Revision No. 21 (TR-21) <br /> Revise Surface Water Monitoring Plan DIVISION OF RECLAMATION <br /> MININGAND SAFETY <br /> Dear Ms. Binns: <br /> Tri-State Generation and Transmission Association (Tri-State) is submitting the enclosed <br /> "Application Form for a Revision to a Coal Mining and Reclamation Permit" for a technical <br /> revision application on behalf of Elk Ridge Mining and Reclamation's (ERMR) New Horizon <br /> North Mine. Tri-State is the parent company of ERMR. The New Horizon North Mine operates <br /> under the Division of Reclamation, Mining and Safety (DRMS) Permit No. C-2010-089. <br /> TR-21 proposes to remove surface water monitoring sites SW-N203 and SW-N204 from <br /> the hydrologic monitoring plan. Section 2.04.7, Map 2.04.7-1, Appendix 2.04.7-2, Section <br /> 2.05.6(3) and Appendix 2.05.6(3)-3 have been updated to reflect this change. Also, the acreage <br /> in Appendix 2.03.8-1 has been revised to correspond with Division Permit System acreage. <br /> Also enclosed please find a revision application and a change of index sheet to ease <br /> incorporation of these materials in to the permit. If you have any questions about the enclosed <br /> technical revision, please contact Tony Tennyson at (970) 824-1232 or ttennyson(a�tristategt.org. <br /> Sincerely, <br /> Daniel J. asiraro <br /> Senior Manager <br /> Environmental Services <br /> DJC:JSS:der <br /> Enclosures <br /> cc: Frank Ferris (via email) <br /> Chris Gilbreath (via email) <br /> Jason Storey (via email) <br /> Tony Tennyson(via email) <br /> File: G474-11.3(21)c-4 <br /> AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER CRAIG STATION ESCALANTE STATION NUCLA STATION <br /> 1 P.O.BOX 1307 P.O.BOX 577 P.O.BOX 698 <br /> A Touchstone Energy'Cooperative CRAIG,CO 81626-1307 PREWIrr,NM 87045 NUCLA,CO 81424-0698 <br /> �� 970-824-4411 505-972-5200 970-864-7316 <br />