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District are summarized and presented in Tables 3 and 4 of Exhibit 9A. The average inflow in one panel could <br />range from 65 to 230 gpm and the total inflow in the Eastern Mining District could range from 110 to 601 gpm. <br />The geology of the Eastern Mining District is similar to the previously permitted areas. A syncline axis, <br />oriented northwest -southeast is located in the central section of the mined area. The southeastern edge of the <br />proposed mining is defined by a split in the Wadge Coal Seam. Additional exploration boreholes will be drilled <br />in this area to better define the coal seam composition. <br />The Eastern Mining District area sedimentary strata are not disturbed by any significant faults. The structural <br />and lithologic characteristics of the permit area are depicted on Geologic Cross Sections B -B' (east -west) and D- <br />D' (north -south), Figures 1B and IA, respectively. These figures are considered confidential. <br />EMD (Panels 2-Ri2ht through 6-Ri2ht, PR97-04) -_The mine inflow predictions were generated using a <br />different methodology than was used for the EMD. The discussion and calculations are presented in Section <br />2.05 of this application. The methodology used a mirror -well technique, which should be adequate for <br />predicting inflows into the mine. <br />NORTH MINING DISTRICT (PR99-05 and PR06-07) <br />The mine inflow predictions were generated using a different methodology than was used for the EMD. The <br />discussion and calculations are presented in Section 2.05 of this application. The methodology used a mirror - <br />well technique, which should be adequate for predicting inflows into the mine. <br />NMD (Panels 17-Ri6ht through 25-Ri2ht, PR03-06 and PR06-07) - The mine inflow predictions were <br />generated using a different methodology than was used for the EMD. The discussion and calculations are <br />presented in Section 2.05.6(3) of this application. The methodology used a mirror -well technique, which should <br />be adequate for predicting inflows into the mine. <br />WESTERN MINING DISTRICT (WMD, Panels 12 -Left through 17 -Left, PR06-07, TR08-64, PR09-08) <br />Because it falls within the Twentymile Park Basin, the geology of the WMD is similar to the previously <br />permitted areas. The Twentymile Park synclinal axis, oriented NE -SW, is the northern boundary of the WMD, <br />the area is bounded on the east by one of the primary faults (orient NNW to SSE), the western boundary is the <br />Tow Creek Anticline and Hayden Syncline, and the SMD lies along the southern limit of the area. General <br />surface geology and coal seam structure for all mine areas are shown on Maps 5, and 6 (Confidential), <br />respectively. With the exception of the primary fault that extends through the eastern portion of the WMD, the <br />WMD sedimentary strata are not disturbed by any significant faults. The structural and lithologic characteristics <br />of the permit area are depicted on Geologic Cross Sections B -B' and E -E' (both east -west, and Maps 8 and 9A, <br />Confidential). <br />Under PR06-06, only limited main and sub -main development will occur. Given the limited area that will be <br />developed, groundwater inflows are expected to be minimal. Prior to actual mining of this area, inflow <br />modeling will be completed and incorporated into the PAP. <br />R'OLF CREEK RESERVE (WCR, Rock -Slope Access and Panels WC-7RT through WC-9RT Initial <br />Development, and Development and Mining of Panels WC-4RT through 9RT - TR13-83 and PR15-11) <br />The WCR underlies portions of the EMD and NMD, and is part of the same water -table groundwater system, so <br />the associated effects of mining on groundwater in this area will be similar to those previously considered and <br />evaluated for the EMD and NMD. In order to develop and mine the northern (WC-11RT through 14RT) and <br />southern (WC-6RT through 4RT (west) and 3RT through IRT) panels of the WCR, TC will need to drain and <br />transfer the water which is currently pooled in the sealed and abandoned overlying workings in the Wadge <br />Seam. TC is currently developing detailed mine dewatering plans, which will be submitted for CDRMS review <br />and approval prior to initiating any mining in the affected areas. Initial development and mining of Panels WC- <br />9RT through 7RT and 6RT through 4RT (east) would not be affected by the pooled water (see MSHA approval <br />PR 15-1 1 2.04-11 02/01/16 <br />