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Mountain Coal Company <br />West Elk Mine <br />Post Office Box 591 <br />Somerset, Cobrado 87434 <br />Telephone 303 929-5015 <br />Fax 303 9295595 <br />-.~nrt\IC(~ <br />III IIIIIIIIIIIII III <br />999 <br />~~ / <br />SEP 16 199 <br />September 14, 1994 <br />Ms. Christine E. Johnston <br />DMSION OF MINERALS AND GEOLOGY <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />pivician u, ~,,,,,,.~~~~ W ,:~~'~Csy <br />Re: West Elk Mine, Permit C-80-007, Minor Revision No. 128, Round 2 Responses to <br />Mid-term Review <br />Dear Christine: <br />The following are Mountain Coal Company's (MCC) remaining responses to the Division's <br />comments per your letter of July 19, 1994. The responses area provided in the same order as <br />your comments. <br />HYDROLOGY <br />4. Attached are the SedCAD designs of the Small Area Exemption for the laydown area <br />outslopes, the revised ditch designs for Dl-3, including the new 7A watershed, and the <br />nomograph for culvert Cl-6B. The most current Map 54 and Tables 43 and 44 were submitted <br />with Minor Revision No. 138. <br />5. Page 37 of Exhibit 51 has been revised to include a statement on the reclamation of <br />ditch DCW-2. <br />7. As ditch Dl-3B does not exist, please remove the design from Exhibit 66. <br />9. MCC has been diligently working on Map 54 and Tables 43 and 44 to most accurately <br />represent the drainage structures on site. The changes that have been made were to correct <br />inaccuracies identified during the course of past revisions. Map 54 and Tables 43 and 44 have <br />been further updated, along with supporting ditch and watershed runs, and were submitted with <br />Minor Revision No.138. <br />10. A copy of the Storm Water Management Plan is appended for your files. <br />11. No response required. <br />