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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 />August 6, 1997 <br />RECEIVED <br />~ Mr. Michael P. Boulay <br />Dr. Jim Pendleton <br />Colorado Division of Minerals & Geology <br />Office of Mined Land Reclamation <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />AUG 11 1997 <br /> <br />Division of Minerals & Geology <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 <br />issues for the Sylvester Gulch Site Development Project, provides a general construction <br />summary, and presents our current schedule of critical activities. The following information <br />covers the time period from July 28, 1997 -August 03, 1997. <br />General Construction Summary and Schedule <br />Construction of the RPE Pond (TR79) will be 100% complete with the completion of fencing and <br />sediment ditch inlets next week. Excavation of Phase 1C and Phase 1D and creation of structural <br />fill via screening operations continue. Construction of [he Pond SG-1 embankments, filling of the <br />shaft bench areas, and installation of the 54" Clearwater diversion (CCW-1B) are in progress. <br />Excavation of the Electric Borehole Road continues. The large multiplate culvert for the main <br />crossing of Sylvester Gulch was backfilled in advance of the start of MSE wall F-1 and F-2 <br />construction. The main Sylvester Gulch road was widened in specific locations to provide <br />turnouts for two-way traffic. Widened sections were selected to avoid identified slide zones and <br />wetlands. Light afternoon and evening rains occurred at the site Tuesday and Wednesday, and <br />heavy showers occurred Thursday morning through noon. <br />III IIIIIIIIIIIIIIII <br />999 <br />