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the topsoil replacement efforts in the West and South Taylor Pits at the Colowyo <br />Mine is now variable topsoil replacement depths to enhance species diversity, the <br />statement regarding "average replacement depth" appears to be contradictory. <br />Please clarify the statement on Page 2.05-46 regarding average topsoil <br />replacement depths. <br />Colofwo's Response: <br />The applicable text has been modified and the visual representation of a typical drainage <br />found on page 2.05-46 has been enhanced to eliminate confusion. <br />4. Colowyo does not have a chart or reference a chart that details its current topsoil <br />balance for the West Pit and the South Taylor Pit (or the East Pit, Section 16 Pit, <br />Gossard Loadout and facilities area). Please either include a current topsoil <br />balance chart for all of the disturbed mine areas or reference the location of the <br />topsoil balance chart in the text. <br />Colowyo's Response: <br />Colowyo has modified the text to reference the most recent Annual Reclamation Report <br />Section 12 for topsoil balance information. <br />5. On Page 2.05-47 Colowyo states that "(w)hen necessary to ensure replacement to <br />the required or desired depths, replacement depths will be staked on the regraded <br />spoil." Please describe how Colowyo does, or will, ensure that replacement <br />depths meet the requirements of the approved topsoil replacement plan if the areas <br />are not staked prior to topsoil replacement. This discussion should include areas <br />of both uniform and variable topsoil replacement. <br />Colowyo's Response: <br />As discussed, the text has been modified and includes a description of how and when <br />staking activities will occur to guide proper topsoil placement moving forward. <br />6. Colowyo has committed to include a verification of the variable topsoil <br />replacement depths in the Annual Reclamation Report. On Page 2.05-47 <br />Colowyo states "(i)t will consist of logical transects... that are sufficient to <br />demonstrate variable topsoil depths..." Please include a description of the length <br />and frequency of the transects within a given reclamation block and please <br />provide a generalized diagram of the transects within a reclamation block. <br />Colowyo's Response: <br />Colowyo will take measurements and record locations based on five acre centers that <br />will be overlaid as part of the 2010 Annual Reclamation Report reclamation unit <br />polygons.