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r <br />F - <br />January 18, 2018 <br />Page 2 <br />4. The diagram presented in Figure 9 of Exhibit 7, Item 21 (the AAI study) appears to be <br />erroneous and misleading. Please provide a corrected diagram to Exhibit 7, Item 21 or <br />included a reference to Exhibit 7, Item 21 within the text. <br />Response: Exhibit 7, Item 21 as noted by the Division is the Pre -Feasibility Hydrology <br />Report prepared by Water Management Consultants, and not the AAI dewatering plan <br />submitted under Exhibit 7, Item 22B under this technical revision. Therefore, it is <br />assumed that the Division is referring to Figure 9 in Exhibit 7, Item 22B which is it titled <br />"Figure 9. Schematic of a Monitoring Well". The diagram has been reviewed and is <br />correct. No changes have been made to Figure 9. <br />S. At the request of Colowyo Coal Company, and in recognition of the potential conflicts <br />between their construction schedules and the permitting schedules of other State <br />agencies, Stipulations 19 and 20 are proposed to be modified, and stipulation 23 is <br />proposed to be added. The proposed text of the stipulations is as follows: <br />• Stipulation 19: OBTAINDEWATERING WELL PERMITS AND SUBMIT A MINOR <br />REVISION. <br />DEWATERING WELL PERMITS MUST BE IN PLACE, AND A MINOR REVISION BE <br />SUBMITTED AND APPROVED BY THE DIVISION TO UPDATE SECTOIN 2.01.10 OF <br />VOL UME I OF THE PERMIT APPLICATION PACKAGE, BEFORE ANY PUMPING <br />WELLS ASSOCIATED WITH THE COLLOM PIT IS ALLOWED TO OCCUR. <br />Response: Under the Regulations of the Colorado Mined Land Reclamation Board for <br />Coal Mining, there is no rule requirement for dewatering well permits to be included in <br />the permit application package (PAP) as is being stipulated by the Division. Therefore, <br />Tri-State does not believe that providing dewatering well permits in the PAP is an <br />appropriate application of the rules by the Division. <br />That being said, Tri-State proposes the following stipulation language for Stipulation 19: <br />Stipulation 19: OBTAIN DEWATERING WELL PERMITS AND SUBMIT <br />DOCUEMNTATION TO THE DIVISION. <br />DEWATERING WELL PERMITS MUST OBTAINED, AND A COPY OF THE <br />PERMIT(S) MUST BE SUBMITTED AND RECEIVED BY THE DIVISION BEFORE <br />ANY WELL DEVELOPMENT ASSOCIATED WITH THE COLLOM PIT IS <br />ALLOWED TO OCCUR. <br />• Stipulation 20: OBTAINA DISCHARGE PERMIT FOR WATER PUMPED FROM THE <br />DEWATERING WELLS AND SUMBIT A MINOR REVISION. <br />A DISCHARGE PERMIT FOR WATER PUMPED FROM THE DEWATERING WELLS <br />MUST BE IN PLACE, AND A MINOR REVISION TO THE PERMIT SUMBMITTED <br />AND APPROVED BY THE DIVISION TO UPDATE SECTION 2.03. 10 OF VOLUME 1 <br />AN EQUAL OPPORTUNIY/AFFIRMATIYEACTION EMPLOYER <br />A Touchstone Energy' Cooperative <br />