2011-07-22_REVISION - C1981019 - Laserfiche WebLink

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Colowyo, C1981 -019, PR3 adequacy No. 3 July 22, 2011 2. Section 2.04.12 page 84 has been mis- numbered. The Division believes this should be labeled "Rule 2, Page 87 ". Please correct it accordingly.JHB CCC has revised and resubmitted text. Page numbers have been corrected. This response addresses the Division's request. Rule 2.05 - Operations and Reclamation Plan : Colowyo Coal Company has informed the Division that significant changes to the mine plan for the Little Collom X pit are anticipated. The Division has reviewed the original (1/23/2009) Operations and Reclamation plan submitted by Colowyo and has questions more general in nature. The Division acknowledges that a revised mine plan will be submitted by CCC during this PR3 review. The Division may then have new adequacy review questions after reviewing the new mine plan that have not been raised herein. 1. Please include elevation values on the pre- mining topography map, Map 18B. The response was adequate. Elevations were added to contours on Map 18B and numerous other maps. 2. Revised Mine plan Map 28B shows the proposed dimensions of the Little Collum X pit. This map does not show haul roads into or out of Little Collum X pit, nor are any ramps depicted. How will Colowyo access the pit? Please show haul roads and ramps into Little Collum X pit. Haul roads are shown for Callum Lite Pit, but no ramps are shown. Please add placement of Ramp locations Collum Lite Pit. CCC Provided revisions to %lap'_5D. CCC's response is acceptable. 3. Rule 2.05.3(2)(a) requires that a detailed narrative and appropriate maps be prepared, describing the land to be affected within the permit area according to the proposed sequence of mining and reclamation. Each narrative and/or map shall include a detailed timetable sufficient to describe the various mining phases proposed. The Collom Mine Plan is illustrated on Map 23B; Map 29B shows the proposed Spoil Grading by year. When combined with information found on the Temporary Spoil Pile Design (Map 29C) and the Little Collom Sump design, as illustrated in Exhibit 7 Item 26 Figure 2 (Fig. 2), the overall sequence of activities for the Little Collom X Pit, the Temporary Spoil Pile, and the Sump is not clear. Map 2QB appears to indicate that the X Pit will he entirely backlilled to 1,rade b} )017, However. the temporary spoil pile. which covers the southem portion of the pit. is not scheduled for removal until the end of mining. Fie. 2 shows the Sump superimposed on the X Pit shelf, but does not address the condition that "ould exist if and when the pit is backfilled with spoil and brought to final grade, nor does it show the presence of the tentporarc spoil pile. Map '_QC shows the temporary spoil pile superimposed upon the X Pit shell. but the southern portions of the shell (beneath the pile) are not shown.