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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 /> December 9, 2019 <br /> Ms. Janet Binns <br /> Environmental Protection Specialist <br /> Colorado Division of Reclamation, Mining and Safety <br /> 1313 Sherman Street, Room 215 ECE��ED <br /> Denver, CO 80203 R <br /> 2p19 <br /> RE: New Horizon Mine (Permit No. C-1981-008) dC 3 ZION+ <br /> Technical Revision No. 95 (TR-95) REC1 ' <br /> Backfill Monitoring Wells ph11S10N ck Pea <br /> MjNIN WID <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 the Elk Ridge Mining and Reclamation's (ERMR) New <br /> Horizon Mine. Tri-State is the parent company of ERMR. The New Horizon Mine operates <br /> under the Division of Reclamation, Mining and Safety(DRMS) Permit No. C-1981-008. <br /> TR-95 proposes four additional monitoring wells in the backfilled pit upgradient of the Trench <br /> Drain. Section 2.05.6(3), Attachment 2.05.6(3)-4 and Figure 2.05.6(3)-1 have been updated to <br /> reflect the addition of these backfill monitoring wells. <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 ttenn sY on(u,tristategt.org. <br /> Sincerely, <br /> Daniel J. Casiraro <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)b-4 <br /> AN EOUAL OPPORTUNITY 1 AFFIRMATIVE ACTION EMPLOYER CRAIG STATION ESCALANTE STATION NULLA STATION <br /> P.O.BOX 1307 P.O.BOX 577 P.O.BOX WB <br /> A Touchstone EnereCooperative 'lq CRAIG,CO 81626-1307 MEWITT,NM 87045 NUCLA,CO 114244MO <br /> t,� 970-8244411 SOS-472-3200 9704W-73% <br />