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TWENTYMILE COAL, LLC - FOIDEL CREEK MINE <br />MR14-279 MONITORING WELL RELOCATION <br />TECHNICAL ADEQUACY REPONSES <br />1. It appears to the Division that an error has occurred inert 280 mbeng otoid irevision. TC submitted the minor revision appliatn as the records show that the last <br />minor revision received was MR-278. This revision should be documented as MR -279. Please update the <br />header on the proposed revised page 2.05-17.3 to reference MR -279. <br />correct. TC created a folder for a new MR (MR14-279) for offset <br />Response: The Division's observation is c n <br />drilling related to the Wolf Creek development project, so wever, lie recame up prior to submittal of the drilling MF, and we jt used the next number in sequence. In order to avoid <br />confusion, all submittal materials have been revised s o reflect thpackaected revision number, and are being re- <br />submitted with these responses to replace the previo submittal ge. <br />2. The Division is still currently reviewing Technical Revision No. 83 (T thaRt 83asandted with et aprova "Exhibit 14A: Hydrologic Monitoring Plan - Wotf Creek Reve" TR-83. As <br />result, the Division cannot approve the revised Exhibibe A w Me vs bttMR-279 on the proposed Exhibit 14A will need to addressed with TR-83 including information on <br />corehole WC013A. <br />Response: this approacC0h, 13and A be included in the requests that the reviseTR-83 package d Exhibit 14A for review <br />or thResponse: TC understands and agrees with <br />appropriate revised page reflecting the change for Well W <br />d approval. <br />3. Please submit updated pages for "Exhibit 52 — Exploration Drilling Information" to include all necessary <br />information regarding corehole WC013A. <br />Response: The corehole spreadsheet(s) previously provided in Exhibit 52 for the Wolf Creek development <br />project have been consolidated and standardized to providincluded with these e relevant informatioresponses n for all corefor hreplacement oles, includinin <br />g <br />WC013A. The revised and consolidated spreadsheet is <br />Exhibit 52. MR }�tson rd ivision's discussion with the Colorado Division f Watr Rurces , 4. As per the D ot transferable corehole WC013A. A discussion wth . Music, lead <br />permit no. 294937 is n specialist the co Creek Mine, has stated that a copy of the permit <br />DRMS environmental protection MR-279. <br />application to CDWR I for well construction for corehole WC01 3A is sufficient for approval of <br />Please provide a copy of the application submitted by TC to CDWR for the well permit related to corehole <br />WC013A. z that a separate DWR permit would be required, TC <br />Response: Based on confirmation from Dan Hernandez <br />completed and submitted a new well permit application. A copy of the application accompanies these <br />responses, and TC will provide a copy of the well permit (pending) on receipt for the CDRMS file. <br />5. The Division has performed a cost estimate for the Foidel Sd ©n's iAM9tatestimate is $10,487.27 (see attached cost estimate). The Div cost estimate is consistent with previous <br />cost estimates approved by both the Division and TC. The Division respectfully requests a response from <br />TC with any questions regarding the cost estimate or an acceptance of the Division's estimate. <br />Response: TC accepts the CDRMS's reclamation cost estimate. <br />