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~ ~~ <br />Mountain Coal Company <br />West Elk Mine <br />Post Office Box 591 <br />Somerset, Colorado 81434 <br />Telephone 970 929-5015 <br />Fax 970 929-5595 <br />October 20, 1997 <br />Michael P. Boulay <br />Dr. James Pendleton Division of r,u!leras ~ GeCIOQy <br />Colorado Division of Minerals & Geology <br />Office of Mined Land Reclamation <br />13 ]3 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Re: Geotechnical Report -Sylvester Gulch Site Development <br />Ref: Permit Revision 07 and Technical Revision 79 to Permit No. C-80.007, <br />West Elk Mine <br />Dear Mr. Boulay and Dr. Pendleton: <br />The following presents Mountain Coal Company's (MCC) current summary of geotechnical issues for <br />the Sylvester Gulch Site Development Project, a general construction summary, and our current <br />schedule of critical activities. The following information covers the time period from October 08, 1997 <br />- October 19, 1997. <br />General Construction Summary and Schedule <br />Fill operations, including base course placement at all three benches of the Ventilation Facilities Site are <br />complete. Construction was begun on the main sediment ditch and chute and baffle structures. <br />Construction of the south and west embankments for sediment pond SG-1 are in progress. All three <br />transformers were installed at the substation. Final cut slope geometry has been completed on the lower <br />Sylvester Gulch road and road fill operations are in progress. Base preparation for MSE Wall A was <br />begun. Excavation work was begun on [he Main Entrance widening. Weather has been dry with the <br />exception of a 6" snow event on 10/11 and 10/12. <br />Current Schedule <br />RFGEI\yED <br />OCT 2 2 1997 <br />III IIIIIIIII IIII III <br />999 <br />A gantt chart of the schedule and progress of general construction activities for the project is attached. <br />Other specific tasks of interest are as follows: <br />Upper Detention Pond <br />Ventilation Benches <br />Pond SG-I and Culvert CCW-IB <br />Wall E <br />Water Tank Extension <br />Lower Sylvester Gulch Road <br />In Progress Complete 10/31 <br />Completed 10/17 <br />In Progress Complete <br />In Progress Complete <br />Indefinite Hold <br />Begun 8/27 Complete <br />10/24 <br />10/21 <br />10/24 <br />