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Twentymile Coa(ComOanY - Foide! Creek Mine, TR04-44 TA ResOOnses 8Q2/L004 Item 44. Page 2.05-45.4, lines 34 and 35. The Division cannot approve the open-ended option presented (to enlarge pits as necessary). Please modifv this section to indicate that anv enlareements ofthe pits or excavation ofaddition pits will be as permitted by the Division. An option would be to pre-approve contingency pits as you may determine to be appropriate. Response: After review, the only situation where unanticipated ground water flows might be encountered would be during drilling of the shaft pilot hole, when the collection pit would be nearly empty and have significant holding capacity. Given this consideration, the collection pit sizing should be more than adequate, with no need for potential expansion. The text has been revised to reflect elimination of the contingency statement. Item 45. Page 2.05-45.4. No design drawings of the shaft to be constructed, or of how it is to be reclaimed, we were found in the submission. Please include desk construction drawings in vour application to illustrate the structural elements (construction and reclamation) afthe shaft. !Rule 2.05.3(2)(3)(a)J Response: TCC has developed two new figures (Figures 30 and 30a) illustrating construction and reclamation details for the proposed ventilation shaft. Copies of the new figures accompany these responses. Item 46. Page 2.05-45.4. First sentence of the Primary Method of Construction -Blind Drilling section. Please add immediate closure procedures of the contingeney small diameter holes around the shaft perimeter (Rule 4.07). Such closures could be covered on page 2.05-106 if such closures were to be accomplished at the time of overall reclamation. Response: The referenced pressure-grout holes would be small-diameter (2-3 inch diameter) boreholes with a solid surface casing. Since the purpose of these boreholes would be to grout and seal any wet zones, a cement grout would be pumped through the boreholes to seal these zones and the boreholes would be filled with grout and allowed to set-up on completion of grouting operations. Any surface casing extending above ground surface would be cut-off flush with or below natural ground level. Item 47. Page 2.05-45.6, line 4. Exhibit S as referenced was submitted as Exhibit ST. Please change "Exhibit S" to read "Exhibit 8T". Response: The text has been revised to read Exhibit 8T. Item 48. Page 2.05-45.6. Revised page 2.05-45.6 annotated 05/24/04 replaces the existing page 2.05-45.6 annotated 02/02/98. As such, the discussion on the existing page with regard to Electrical Distribution is lost. Please repaginate to retain the original text. Response: The original text has been included. Item 49. Page 2.05-84, line 40. Referenced Exhibit S was submitted as Exhibit 8T. Please change that portion that reads "Exhibit 5" to read "Exhibit 8T".