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TRI- TAT 5 E GENERATION AND TRANSMISSION ASSOCIATION, INC. <br /> HEADQUARTERS: P.O. BOX 33695 DENVER, COLORADO 80233-0695 303-452-6111 <br /> September 22,2016 <br /> Ms. Amy Yeldell <br /> Colorado Division of Reclamation, Mining& Safety <br /> Department of Natural Resources RECEIVED <br /> 1313 Sherman Street,Room 215 <br /> Denver,CO 80203 SEP 2 3 Z016 <br /> RE: Colowyo Coal Company L.P. DIVISION OF RECLAMAy" <br /> it Permit No. M-2007-026 MINING&SAFETY <br /> TR-0;Adequacy Response <br /> Dear Ms. Yeldell, <br /> Tri-State Generation and Transmission Association,Inc. (Tri-State)received your <br /> adequacy letter dated September 15, 2016 for technical revision 02(TR-02). Tri-State is <br /> submitting this adequacy response on behalf of the Colowyo Mine. Colowyo operates the <br /> Neilson Pit under Permit No. M-2007-026,and Tri-State is the parent company to Axial Basin <br /> Coal Company,which is the general partner to Colowyo Coal Company L.P. (Colowyo). <br /> 1. Does the estimated 80,000 cu.yds. of material to be grade include the 15,000 cu.yds. <br /> of blasted material? <br /> Response: The 80,000 cubic yards of material to be graded does include the 15,000 <br /> cubic yards of material to be blasted. <br /> 2. How many acres will be disturbed through the grading process and require seeding? <br /> Response: There will not be any new disturbance associated with grading or seeding <br /> process. The total acreage that will be reclaimed is 9.5 acres. This is also expressed <br /> in Section 6.3.4 Exhibit D—Reclamation Plan within the permit. <br /> 3. The Division acknowledges that the site has an apparent lack of topsoil. Please <br /> indicate how you will overcome this. <br /> Response: The Division's comment needs to be further clarified as it is partially <br /> correct. The Neilson Pit did not have a lack of topsoil pre-mine; it did not have a_y <br /> topsoil prior mining occurring. As noted in Section 3.3.3 Exhibit C—Mining Plan of <br /> the permit,mining has and does occur directly into a rock outcrop. Further,please <br /> see the response to Item 3a. <br /> a. Will fines, topsoil or other organic material be imported?If so how much? <br /> Response: The permit application as approved by the Division on June 15,2007 did <br /> not require topsoil replacement, and TR-02 is not proposing any topsoil replacement. <br /> AN EQUAL OPPORTUNITY/AFFIRMATIVE ACTION EMPLOYER CRAIG STATION ESCALANTE STATION NUCLA STATION <br /> _/ P.O.BOX 1307 P.O.BOX 577 P.O.Box 696 <br /> A Touchstone Energy'Cooperative i GWc.Co 81626-1307 PBEWITT,NM 67045 NUCU,Co 61424-0696 <br /> I``r 970-624-4411 505-972-5200 970.664-7316 <br /> 9) <br />