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2018-11-01_REPORT - C1981019
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2018-11-01_REPORT - C1981019
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Entry Properties
Last modified
11/5/2018 8:14:12 AM
Creation date
11/5/2018 8:01:29 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
Report
Doc Date
11/1/2018
Doc Name
Annual Hydrology Report Adequacy Review Response
From
Tri-State Generation and Transmission Association, Inc
To
DRMS
Annual Report Year
2017
Permit Index Doc Type
Hydrology Report
Email Name
ZTT
Media Type
D
Archive
No
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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 />November 1, 2018 <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 />2017 Annual Hydrology Review Response <br />Dear Mr. Trujillo, <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). The <br />Colowyo Mine operates under the Colorado Division of Reclamation, Mining, and Safety (Division) <br />Permit No. C-1981-019. Tri-State received the Division's review of the 2017 Annual Hydrology Report <br />(AHR) dated August 6, 2018, and is providing the following response on behalf of Colowyo. <br />This response letter does not contain the original statements from the Division; however, proper <br />citations to pages and paragraphs, where appropriate, have been provided for the Division's reference. <br />These responses will be broken up into several categories, which will include General, Surface Water, and <br />Groundwater. <br />General <br />As noted in the Division's letter (page one, Table 1), Colowyo is compliant with all requirements <br />for surface and groundwater monitoring and submittal of the annual hydrology report for 2017. <br />Moreover, Colowyo has historically met all the requirements for the water -monitoring program and <br />required reporting. <br />The Division states in the surface water (page two, paragraph one under Review of Surface Water <br />Quality Data), and ground water comments (page five, paragraph one under Review of Groundwater <br />Quality Data), that it is assumed that there are no significant surface or groundwater impacts below the <br />Collom Mine. This statement should have been quantified in more detail by the Division in the letter. <br />The Division should have noted that mining has not commenced in the Collom Pit when the 2017 AHR <br />water monitoring data was reviewed. Moreover, the Division should take notice that all data included in <br />the 2017 Amit, for the Collom monitoring locations, provides further definition on the pre -mining <br />conditions relevant to the Collom operation. <br />On page two, last paragraph, it is identified that the only Water Supply uses are by Colowyo <br />itself. At this time, with the information that Division has, this is a correct statement. It should be <br />clarified though, that the two wells (permit No. 28856 and 46212) completed in the alluvium are no <br />longer in the field, and proper abandonment reports are being processed at this time for submittal to the <br />Colorado Division of Water Resources. <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 698 <br />A Touchstone Energy' Cooperative i CRAIG, CO 81626-1307 PREWIn NM 87045 NUCLA, CO 81424-0698 <br />��r RRR�y 970.824.4411 505-876.2271 970.864-7316 <br />
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