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Division with the location of these treatments during the course of monthly inspections. <br />If success is achieved in this test process, it will be applied to all areas infested with <br />significant levels of cheatgrass in the fitture. Areas of young reclamation in the East Pit <br />previously identified in 2009 as having essentially cheatgrass monocultures are actually <br />displaying significant seed mix presence of grasses in 2010. Colowyo will monitor this <br />progress and act accordingly should this trend stall or reverse in the next year or two. <br />Colowyo believes this issue can be resolved outside the permitting process. <br />25. Currently Colowyo has two reclamation seed mixtures in the permit, a grassland seed mix <br />and a sagebrush steppe seed mix. The areas where each of these will be planted is fairly <br />well defined for the West Pit and the South Taylor Pit but not very well defined for the <br />East Pit, Facilities area and the Gossard Loadout. Please include a detailed description of <br />which seed mixes will be used to reclaim each of the above listed areas. In addition to <br />describing which seed mix will be used in the above listed locations, Colowyo should <br />consider providing a map that shows the entire mine area and delineates which seed <br />mix(es) will be used in which area of the mine. <br />Colowyo's Response: <br />As submitted in TR-72, TR-82 and TR-84 areas that exhibit a slope of less than ten <br />percent are targeted for receiving the sagebrush steppe mix. These areas will receive an <br />average of four inches or less of topsoil resource. In some circumstances, areas up to <br />fifteen percent can be seeded with this mix, but extra precautions in the fora: of contour <br />furrows, etc. need to be utilized to minimize surface erosion that could result from a mix <br />with a reduced grass component. Everything else will be seeded with the grassland mix. <br />This focus applies to all areas yet to be reclaimed, including the East Pit, Facilities area <br />and the Gossard Loadout. These areas will be officially characterized through the <br />Annual Reclamation Reports for each reclamation area as reclamation progresses with <br />information regarding seed mix used, topsoil depths, etc. provided. Specific rationale <br />will be provided for all reclamation areas. <br />Rule 4.17 - Air Resource Protection <br />26. Permit Section 4.17 in the Colowyo permit does not contain any information regarding the <br />air resource protection measures at the Colowyo Mine. There are references to other <br />sections of the permit but there needs to be specific information, in the form of text, in the <br />performance standard section as well (Section 4). Please include detailed information <br />regarding the air resources protection measures employed at the Colowyo Mine in Section <br />4.17. Please reference the CDPHE-APCD air emissions permits in this section (including <br />permit number and expiration date). <br />Colowyo's Response. <br />Colowyo is presently in the middle of modifying both air permits through cooperative <br />work with the Air Pollution Control Division (APCD). Colowyo would like to shelve this <br />issue until updated permit language is generated and approved by the APCD. Ideally, <br />Colowyo would like to limit the amount of material that needs to be updated when <br />changes occur to permits outside the CDRMSpermit. Simply a reference to the air <br />permits and their location is sufficient to address the issue and doesn't create a custodial <br />permitting requirement every time the air permits are updated or modified. <br />This concludes the Division's 2010 Midterm Review for the Colowyo Mine.