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STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Departrnent of Natural Resources <br />1313 Sherman 5t., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 8863567 <br />FAX: (303) 832-0106 <br />8 September 2005 <br />Mr. Tay Tonozzi <br />Colowyo Coal Mine <br />5731 State Highway 13 <br />Meeker, CO 81641 <br />Re: Colowyo Mine C-1981-019 <br />Collom Project Soils Survey Scope of Work <br />Dear Mr. Tonozzi, <br />COLORADO <br />D /VISION O F <br />MINERALS <br />GEOLOGY <br />0.EC LA NATION•NINING <br />SAFETY•ECIENCE <br />Bill Owens <br />Governor <br />Russell George <br />Executive Director <br />Ronald W. Gttany <br />Division Director <br />Natural Resource Trustee <br />The Division has reviewed the "Scope of Work -Collom Mining Area Order II and <br />Order III Soil Surveys" submitted by Judd Stazk of Maxim Technologies. The report was <br />quite thorough and should result in a very good product. The following aze the Divisions <br />comments regarding the submittal. <br />1. Consideration should be given to the potential use of soil horizons rated "poor" or <br />"unsuitable" due high coarse fragment content. Separate salvage of such <br />materials might be warranted for use in specified locations to enhance the <br />establishment of shrub species adapted to rocky soil conditions. <br />2. Analytical pazameters not specified in the Preliminary Suitability Rating Guide <br />table (i.e. conductivity, SAR) might possibly also influence soil salvage <br />determinations. <br />3. Blanket designation of soils on slopes steeper than 40 percent as "unsuitable", <br />would not be appropriate. Any such determination would need to be based on a <br />number of considerations, including soil quality, depth, and aerial extent. <br />Please contact me if you have any questions or concerns at (303) 866-4929. <br />Sincerely, <br />~-___ _ -" <br />James R. Stazk <br />Environmental Protection Specialist <br />Office of Office of Colorado <br />Mined Land Rxlamation Active and Inactive Mines Geological Survey <br />