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Corey Heaps <br />McClane Canyon Mining, LLC <br />February 15, 2011 <br />Page 13 <br />a. The locations of the six boreholes drilled for the 2007 study are not shown on the <br />CMWP map (Exhibit A). Please revise the map accordingly, and include a reference to <br />the map in this section of the study. <br />-59. Section 2.0 — Site Description and Geologic Settin <br />a. 2.1 — Relative directions described in the text seem to be rotated —90 east of actual, e.g. <br />the proposed coal waste pile is actually to the south (not west, as the text indicates) of <br />the mine haul road and 1200' south (not west) of the mine office; additionally, the toe <br />of the hillside is east (not south) of the pile site. Please review the text and revise as <br />appropriate. <br />b. The text refers to "small ridges" of native soils. Please revise the text, as necessary, to <br />refer to the potential dam feature (as discussed elsewhere in this adequacy review) if <br />this is what is intended by the text. <br />C. Based on information available from the FEMA website, it appears that FIRM panel <br />0802051575B should also be referenced. Please review, and revise the text if <br />appropriate. <br />d. The caption for Photo #1 indicates that the view is to the southeast, although the <br />perspective of the photo seems to be looking to the northeast. Please review the <br />description, and revise as appropriate. <br />60. Section 3.0 — Subsurface Conditions <br />a. The first sentence gives the location of the proposed 2007 CMWP as "approximately <br />500 east of the site analyzes for this study" — please review and correct the distance, <br />units and direction (it appears that "1200 feet northeast" would be more accurate) and <br />correct the spelling of "analyzed ". <br />b. Additional paragraphs from the 2007 study have not been incorporated here — please <br />reincorporate these paragraphs, or provide an explanation as to why they have been <br />omitted. <br />C. The Division notes that no new subsurface data (boreholes) have been collected within <br />the footprint of the proposed CMWP. Please provide subsurface information specific to <br />the location of the PR -2 CMWP, or submit a rationale for the Division's consideration <br />which justifies use of the boreholes drilled in 2007 for characterization of the soils and <br />subsurface conditions at the site. <br />61. Section 4.0 — 2007 LaboratoEy Testin <br />a. This section discusses laboratory testing for both 2007 and 2010. Please delete "2007" <br />from the title of Section 4.0. <br />