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Kurtis Blunt. Colo «-y o Coal Company <br />May 15, 2012 <br />Page 4 <br />a. Several pages submitted with RN -06 have "MR-91" in the footer. Please explain or submit <br />pages with "RN -06" in the footer. <br />b. Please submit a revised Table of Contents for all volumes that includes tables, figures, <br />exhibits and maps. It should indicate the volume number as well as page numbers. <br />c. Page 2.05 -5a: The equipment list table appears to be in both the text (Section 2.05) and in the <br />tables section. It should be in one or the other. <br />d. Page 2.05 -33: Supposedly was updated in TR -87, but page in PAP is from TR -82. <br />e. Pages in Section 4.05: Supposedly were updated in TR -87, but pages in PAP are from MR- <br />91 (June 2008). <br />f. South Taylor Rule 4: Section 4.02.6 is missing. <br />g. Please submit all of the tables that belong in Volume 1. <br />h. Figure 2.05 -6: Supposedly was updated in TR -87. There is a figure by this name in text (p. <br />2.05 -32), but that page is from TR -82. <br />i. Map 12: Supposedly was updated in TR -87, but map in PAP is from TR -82. <br />j. Exhibit 7 TOC does not contain Item 17, which contains report on SAEs. It also does not <br />contain Item I (Tri -State ROW). <br />k. Exhibit 7, Item 20, Part C: Pagination is off Also, pages say "TR -82" not ' TR -81." Add <br />disclaimer page (no need to rerun SEDCAD). <br />8. Reclamation Cost Estimate <br />Please provide updated mass balance information for volume of the East Pit, West Pit, and South <br />Taylor Pit remaining to be backfilled; these should reflect the worst case scenario for the 2012 — <br />2017 permit term. Upon update of these volumes, the Division will complete its evaluation of <br />the current Reclamation Cost Estimate. <br />This concludes the preliminary adequacy review for Colowyo Mine's Permit Renewal 06. <br />Colowyo's timely responses to the above questions will make it possible to propose a decision <br />and issue a renewal permit prior to the expiration of the current permit. Please contact me at <br />303 - 866 -3567 (x 8113) if you have any questions. <br />Sincerely, <br />0�w -"7 7-1, <br />Robert D. Zuber, P.E. <br />Environmental Protection Specialist <br />