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r. <br />Mountain Coal Company <br />West Elk Mine <br />Post Office Box 591 <br />Somerset, Colorado 61434 <br />Telephone 970 929-5075 <br />Fax 970 929-5595 <br /> <br />OCT 3 n 1997 <br />October 28, 1997 <br />Mr. Michael P. Boulay <br />Dr. James Pendleton <br />Colorado Division of Minerals & Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Division ~~ ~~~mela~s s taeob9Y <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 />~II II~~I~II~~~~~ ~I~ <br />sss <br />The following presents Mountain Coal Company's (MCC) curzent summary of geotechnical issues for the <br />Sylvester Gulch Site Development Project, a general construction summary, and our curzent schedule of <br />critical activities. The following information covers the time period from October 20, 1997 -October <br />27, 1997. <br />General Construction Summary and Schedule <br />Base course placement continues on completed benches and road sections. Construction continues on the <br />main sediment ditch and chute and baffle structures adjacent to the Ventilation Facilities Site. Rough <br />grading of sediment pond SG-1 was completed and the slopes are being prepared for liner installation. <br />Alignment, excavation, and rough grading mere completed for the upgraded access road from the substation <br />to the main Sylvester Gulch crossing (F-Wall). MSE Wall A is approximately 60% complete. Excavation <br />and rough grading was completed for the Main Entrance widening. Weather was dry through Thursday, <br />October 23. Rain and snow on Friday, October 24, halted construction through the weekend. <br />Curzent Schedule <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-1 and Culvert CCW-1 B <br />Wall E <br />Water Tank Road Extension <br />Lower Sylvester Gulch Road <br />In Progress Complete 11/07 <br /> Completed l0/17 <br />In Progress Complete 11/17 <br /> Completed 10/21 <br />Indefinite Hold <br />Begin 8/27 Complete 11/07 <br />