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<br />The Division wonders whether the development mining proposed for the Wadge Seam in <br />Sections I l and 14, TSN, R86W, which will be downdip of the coal mined in the Middle <br />Creek Mine, may encounter inflows similar or greater to those seen in the Middle Creek <br />Mine. If so, the Division questions how this potential inflow would be managed. Given that <br />the distance from Section 1 l to the nearest mine water discharge point (l0 Right Dewatering <br />Well) is approximately 3 miles, it would seem that a discharge facility may possibly be <br />needed in the N''/z of Section 11, possibly utilizing the Fish Creek Tipple facility and <br />sedimentation pond situated even further to the north. <br />Please discuss whether Twentymile Coal Company expects to see any mine water inflows in <br />the Wadge Seam in the mining proposed for Sections 11 and 14, TSN, R86W. Please also <br />discuss how Twentymile Coal Company would handle mine water inflows in the portion of <br />the mine proposed to underlie Sections 11 and 14, TSN, R86W, if these potential inflows <br />were equal to or greater than the inflows observed at the Middle Creek Mine. <br />70. Rule 2.04.6: Two items from the Division's review of RN-03 were to be addressed in our <br />review of PR-O5. These items had been enumerated in the Division's March 2, 1998 RN-03 <br />adequacy letter as Items 73(a) and 73(b). <br />With regazd to RN-03 item 73(a), the permit's Geologic Cross Sections indicate that the <br />faults depicted on Maps 6 and 23 are steeply-dipping, with varying dip direction. RN-03 <br />Item 73(a) has been adequately addressed. <br />With regazd to Item 73(b), information pertaining to the geochemical analysis of the coal <br />and the roof and floor material from the Northern Mining District has been provided with <br />the PR-OS application in Tables 20D, 20E, and 20F. RN-03 Item 73(b) has been addressed. <br />71. Rule 2.04.6: The last two sentences of proposed permit page 2.04-16.2 state, "Roof, floor, <br />and coal samples were obtained from holes 97006 and 97007. The data is presented on <br />Table 20F." Please revise the last sentence to state, "The data is presented on Tables 20D, <br />20E, and 20F.", to be consistent with the information actually presented in those tables. <br />Cc: Dave Berry <br />