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Colowyo, C1981-019, PR3 adequacy No. 2 9 April 22, 2011 <br />Reclaimed areas in 2016 and beyond in the Collom Lite pit are not shown being diverted <br />around the temporary spoil pile. Discussions with representatives of Colowyo indicate that a <br />sediment pond immediately downgradient of the Collom Lite pit may be proposed. <br />Please review the drainage and sediment control plan over the life of the mine and ensure that <br />all disturbed areas will be routed through the sump/sediment pond system as stated in the <br />permit text narrative under Rule 4. <br />The application remains inadequate. Please review the drainage and sediment control plan over <br />the life of the mine and ensure that all disturbed areas will be routed through the sump/sediment <br />pond system as stated in the permit text narrative under Rule 4. Numerous disturbed areas <br />(topsoil stockpiles excluded) are shown on maps outside of (downgradient) from ditches <br />diverting water through the designed sediment control system. Small areas outside of the <br />primary sediment control system should be addressed as small area exemptions if they will not <br />report to the sump/sediment pond. Please describe in detail, using permit text narrative, maps, <br />cross-sections, and other information as necessary, as to how future reclaimed areas in the <br />Collom Lite pit will be routed around the temporary spoil pile that will block Collom Gulch. <br />Rule 2.05.3(6) Overburden <br />1. Please assure that appropriate detail required by Rule 2.05.3(6) is included in the Operation and <br />Reclamation plan. Discussion of the pit dimensions, swell factor and blasting detail was not <br />found in Section 2.05.3(1) Operation Plan, or Section 2.05.3(6) Overburden of the PR3 <br />application, nor was there a discussion of where this information could be found in the <br />application. Please provide the detail required by Rule 2.05.3(6). Please state which seed mix <br />CCC will employ for temporary overburden stockpile stabilization (Collom-Rule 2, page 99). <br />Rule 2.05.4(2)(b) Reclamation Costs and Rule 3 Performance Bond <br />Colowyo Coal Company has not provided a reclamation cost estimate for the Collom expansion area at <br />this time. As mine plan details are finalized, a reclamation cost estimate is required to be submitted <br />and incorporated into the permit. <br />CCC has noted that CCC will provide this information to the Division. A detailed Reclamation Cost <br />Estimate is still required to be submitted for the Division's review. <br />Rule 2.05.4(2)(e) Reclamation Plan <br />1. It is not clear in Section 2.05.4(2)(e) of PR-3 if the reclamation standards apply to the Collom <br />expansion area, the Colowyo Mine or both. Please insert a statement at the beginning of this <br />section indicating that all standards stated within PR-3 Collom Expansion Area are only for the