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Jason Musick -5- April 27, 2015 <br />14. DRMS: On Page 7, language in first 3 paragraphs has been written to <br />speak of future activities ("will be ", etc.). Please update the text to <br />reflect current status of these activities. <br />BRL: Please see revised page 7. <br />15. DRMS: On Page 8, two paragraphs have been added to discuss Borrow <br />areas #1, #2 and #3. The text describes the volume of topsoil potentially <br />available for salvage, but no estimate of the amount of coverfill to be <br />obtained from the borrow areas is given. Please revise the text to <br />give the volume of coverfill that is expected to be gained from <br />these areas. <br />BRL: Please see revised page 8 which lists the estimated subsoil that will be <br />generated from the two borrow areas. In addition, Page 10 was updated to <br />reflect the change in borrow area configuration. <br />16. DRMS: On Page 16 — Reclamation, the last sentence of the third <br />paragraph appears to be missing some text. Please revise, as <br />appropriate. <br />BRL: Please see the corrected text on revised page 16. <br />17. DRMS: On Page 18 — Stability Analysis, the first paragraph lists only <br />Lambert & Associates and Buckhorn Geotech. Please add Huddleston <br />Berry Engineering & Testing to the list of geotechnical <br />consultants that have contributed to Volume IX. <br />BRL: Please see revised page 18. <br />18. DRMS: To the northeast of the coal mine waste disposal area, there <br />exists a "'hole"' in the topographic information presented. This gap in data <br />is in a crucial location — the site of proposed Borrow Area #3. Analysis of <br />aerial photos suggests that there is a fairly massive sandstone outcrop <br />some distance above the proposed borrow area cut slope. Without <br />topographic data, we are unable to confirm that the sandstone will not be <br />undermined by the proposed excavation. Any undermining could <br />contribute to toppling of sandstone blocks into the East Diversion Ditch. <br />(An event of that type appears to have occurred naturally, in 2007, from a <br />point directly above the proposed Borrow Area #3.) <br />BRL: Since borrow area No. 3 will no longer be utilized, no response is <br />necessary. <br />19. DRMS: Section E -E' is graphed eastward only to the intercept of coal <br />mine waste with the natural ground. Please extend the cross section <br />