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<br />PACIFIC BASIN RESOURCES <br />A Division of Oxbow Carbon & Minerals, Inc. <br />THIRD QUARTER 1995 <br />ENGINEERING INSPECTION <br />EAST YARD GOB DISPOSAL PILE <br />On September 25, 1995, I performed a visual inspection of the <br />east yard gob disposal area at Pacific Basin Resources, Sanborn <br />Creek Mine. Both Bear Coal Company and Pacific Basin Resources <br />have approval to dispose of coal mine waste in the gob pile. <br />Page 2.05-19ii, dated 12-10-92, of Pacific Basin Resources <br />approved permit document includes the requirement to inspect the <br />coal mine waste pile for stability quarterly. The inspection is <br />to be performed by a registered engineer or other qualified <br />professional specialist experienced in construction of earth and <br />rockfill embankments. The quarterly inspection report is to note <br />the volume of waste material placed in the pile since the last <br />inspection. <br />The gob disposal area <br />inspection that would <br />failure. Compaction <br />1993, second quarter <br />quarter 1995. Gob m; <br />testa. <br />was dry. Nothing was observed during the <br />indicate the pile has a potential for <br />tests were performed for fourth quarter <br />1994, fourth quarter 1994, and second <br />;terial has consistently passed compaction <br />Pacific Basin Resources hauled material to the gob pile from the <br />development of the incline for the new portal, clean-out of the <br />sedimentation ponds, and road maintenance in the coal stockpile <br />area during the quarter. An accurate estimate of the volume of <br />waste material from these sources is not available at this time, <br />however, a survey of the gob pile volume is planned for the <br />fourth quarter. Bear Coal Company did not haul any material to <br />the gob pile during the quarter. <br />A failure oP the pile would probably not be a hazard to human <br />life. The pile is located above a large flat bench referred to <br />as the east yard. The bench is 80' to 100' wide directly below <br />the pile. If the coal mine waste pile failed, it would very <br />likely be contained in the east yard. The overland conveyor and <br />conveyor drive on the bench below the pile might be damaged by a <br />failure of the pile. <br />Thomas C. Anderson Date <br />Colorado Registered <br />Professional Engineer No. 14726 <br />Sanborn Creek Mine P.O. Box 535 Somerset, Colorado 81434 Phonc (970) 929-5122 Fax (970) 929-Slit <br />