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Rob Zuber <br />Page 2 <br />April 20, 2016 <br />Please revise this section of text to refer to the separation between the Trout Creek sandstone <br />and the lowest seam to be mined in the vicinity of the proposed Collom pit and use this value <br />consistently throughout the text of volume 15. Please also cite the data that allows CCC to <br />accurately assess the separation over this area. [Refer also item 80 in this letter] <br />The text on Rule 2, Page 13 was updated, and is consistent with surrounding text. <br />The response is sufficient. <br />69. The response is sufficient. <br />70. The response is sufficient. <br />Rule 2.04.7 — Hydrology Description <br />71. The response is sufficient. <br />72. The response is sufficient. <br />73. Two faults are described in Volume 15, Rule 2, Page 21, but are not shown on Map 7A (or Map <br />1013). <br />Please draw the faults on Maps 7A and 10B. Please also update the text of section 2.04.6 to <br />include a description of these faults. <br />CCC have retained discussion of faulting in Morgan Gulch on Page 15, and removed the text <br />discussing faults from Page 21, in the proposed revised text, rather than expanding other <br />sections to more fully describe these faults. Two references are cited in the text that CCC <br />proposes to remove: Reheis, 1981; and Dodd and Dodd Consulting, 2006. The first of these is <br />readily available to the public however the second is not. Please provide a copy of the <br />referenced report so that the Division may better evaluate the significance of faulting in the <br />Collom area. Please also show the faults in Morgan Gulch on Map 7A. <br />CCC removed discussion of faulting in Morgan Gulch from the text since it is not pertinent to <br />the mine plan as proposed with PR -4. Text was added to Volume 15, Rule 2, Page 15, <br />describing the evidence used by CCC to support the conclusion that faults are not expected in <br />the Collom area. CCC also removed reference to the Dodd and Dodd report from the text, and <br />updated Volume 1, Section 2.03.3(1-5) to remove the report from the list of references. <br />The response is sufficient. <br />74. Under the subheading "Groundwater Occurrence", in Volume 15, Rule 2, Page 21, the text refers <br />to bedrock and valley fill monitoring wells relevant to PR -4 presented in Table 2.04.7-38. This <br />