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about monitoring the currently flooded areas of the Wadge seam prior to retreat mining in Panel I (which <br />corresponds to WC-9RT) or any mining in panels 6-9 (which correspond to WC-4RT to IRT) or panels 10 <br />through 13 (which correspond to panels WC-IIRT to 14RT). Given this, it does not appear TC has <br />obtained MSHA approval to retreat mine in WC-9RT panel as proposed. Please either provide a plan for <br />dewatering and handling the pooled mine water in the Wadge Seam to accommodate longwall mining in <br />the WC-9RT panel or mods the mine plan so mining will not occur in this area. If the first option is <br />chosen, please provide documentation that MSHA has approved retreat mining in WC-9RT panel. <br />Response: - The accumulated mine water in the Wadge workings (northern pool) extends slightly into the WC- <br />11RT panel (refer to the revised Map 23WC accompanying these responses). Even considering angle of draw <br />effects, the proposed mining in the WC-9RT panel would not affect this area of mine water accumulation. <br />6. Exhibit 53 currently includes Confidential Wolf Creek Reserve, Geologic and Mine Plan Information <br />submitted with TR83. PRIO includes two documents, one an MSHA letter dated December 31, 2014 with <br />supplemental materials, the second is a letter from Peabody Energy dated April 14, 2014 regarding an <br />application for a coal lease by modification. Instruction on where or how these documents will be included <br />in the currently existing Exhibit 53 was not included with the PRIO submittal. Also, it may be more <br />appropriate to include the application for a coal lease modification in Exhibit 2 of the permit instead of <br />Exhibit 53. Please indicate how these documents should be incorporated into the exhibits andpaginated. <br />Response: - The two items referenced do not need to be included in the PAP, are provided as supporting <br />information only, and can most appropriately be included in the CDRMS permit correspondence file. <br />Rule 2.05.2; Operation Plan — Estimate Area for Life of Operations <br />7. PRIO included a revised Map 23; Wolf Creek PR14-10, Mine Plan Modification. Currently, the permit <br />includes four maps: Map 23 — Mine Plan, Map 23a - 5 -Year Mine Plan with Subsidence Monitoring Plan, <br />Map 23b — Structures and Renewable Resources, and Map 23c- Mine Plan, Surface Disturbance and <br />Monitoring. Will the submitted map replace any of the currently approved maps? If so, please indicate <br />which map of the series it will replace and submit a revised copy with the appropriate identification <br />designation. <br />Response: - Since PR10 addresses mining in the Wolf Creek Seam, we have re -designated the corresponding Mine <br />Plan Map as Map 23WC. Revised copies of this map accompany these responses for placement in the PAP. <br />8. Revised page 2.05-3.1 indicates the subsidence monitoring network for the longwall area is shown on Map <br />23a. The Division could not locate Map 23a within the permit application package. Please submit an <br />updated Map 23a. <br />Response: - The referenced subsidence monitoring network was associated with the initial validation of the <br />subsidence and impact analyses for undermining the Fish Creek AVF and verification that the longwall mining <br />activities would not adversely impact the "essential hydrologic function". Copies of Map 23A are being provided <br />with this response submittal as a historic reference document, however, there is no need to update this map, as it is <br />not directly relevant to the activities proposed under PRI 0. <br />9. Revised page 2.05-3 indicates the total disturbed area is approximately 640 acres. The Division's records <br />indicate the total disturbed area to date is 734.22 acres. Please review and verb your disturbed area <br />acreage. <br />Response: - Please refer to the previous response to Comment 2. Revised copies of the referenced page <br />accompany these responses for replacement in the PAP. <br />10. Revised Page 2.05-3 and 2.01-4 indicates the permit area is 22,447 acres and 22,607 acres respectively. <br />Revised page 2.01-4 appears to include the 160 additional permit acreage proposed with PR10. The <br />Division's records indicate the current permit acreage for the site is 20,100 acres and with the approval of <br />PRIG, the permit acreage will be 20,260 acres. Based on the Division's files, it appears TC reduced the <br />