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:~ <br />~II ~I~~I~~I~~~~~~I~ <br />999 <br />STATE OF COLORADO <br />DIVISION OF MINERALS AND GEOLOGY <br />Depanmem of Natural Resources <br />1313 Sherman 51., Room ? 15 <br />Denver, Colorado 80203 <br />Phone: (3031 866-3567 <br />FA%:1303) 832-8106 <br />October 18, 1995 <br />Me. Kathleen Welt <br />Mountain Coal Company <br />P .O. Box 591 <br />Somerset, CO 81434 <br />RE: Minor Revision No. 168; West Elk Mine; Permit No. C-80-007 <br />Dear Me. Welt; <br />I~~~ <br />DEPARTMENT OF <br />NATURAL <br />RESOURCES <br />Roy Romer <br />Governor <br />lames 5. Lochhead <br />E>tewove Duecmr <br />Mic hac B. Long <br />Divisia~ Direr for <br />The Division has reviewed and deemed complete, for the purposes of filing, the <br />above referenced minor revision submitted by Mountain Coal Company (MCC). The <br />revision proposes to drill several boreholee to collect geotechnical data or <br />complete as piezometere. MCC should respond to the following questions regarding <br />this revision: <br />1. The NOI information was not attached to the revision application ae stated <br />in the cover letter. However, X-95-212-04 was reviewed. <br />2. A map should be provided which shows the locations of the boreholes and <br />piezometere. <br />3. The following assumptions were made to calculate the bond: <br />A. Holes not completed as piezometere would be reclaimed as stated in <br />the NOI. Please clarify. <br />B. The diameter of the soil borings will be 8 inches and the diameter <br />of the piezometere will be 2 inches. Please clarify. <br />C. All areas have been previously disturbed except for the LRP hole. <br />Please clarify. Topsoiling and seeding were not calculated for this <br />hole as it is an alternate to LRP-1 and these costa were included in <br />the NOI. <br />4. Based on the above assumptions, the Division has calculated the coat of <br />sealing the holes to be $2,418.00. This cost and the additional indirect <br />costs brings the total bond amount to $5,512,144.00. As MCC's reclamation <br />bond is $5,700,000.00, no additional bond is needed. <br />The above information should be submitted as soon as possible, as a proposed <br />decision is due on October 27, 1995. <br />call if you„ have any questions. <br />ly~ /~%] ~7 /1 <br />Christine E. <br />Environmental <br />ion Specialist <br />CEJ/007MR168 ~-/ <br />~, <br />ro r9^~.5 <br />