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M03086GE <br />1.0 INTRODUCTION <br />This report presents the results of the geotechnical engineering <br />study we conducted for the proposed Bowie Number 2 Mine B-Seam and <br />Stockpile project at the Bowie Number 2 Mine located east of <br />Paonia, Colorado. The study was conducted at the request of Mr. <br />Jim Stover, J.E. Stover and Associates. <br />1 The conclusions, suggestions and recommendations presented in <br />I this report are based field and laboratory data gathered during our <br />geotechnical engineering study for the conveyor, proposed configu- <br />rations and cross sections provided by Mr. Jim Stover and on our <br />experience with similar soil conditions. Factual data gathered <br />during the field and laboratory work for the proposed conveyor are <br />presented in our geotechnical engineering report for the conveyor <br />dated October 7, 1998. We assume that this report is available and <br />therefore is not reproduced with this report. Our study included <br />reviewing information presented in "Preliminary Geotechnical <br />engineering Study Bowie No. 2 Mine, Surface Facilities, Bowie, <br />Delta County, Colorado" dated July 10, 1996 by Maxim Technologies, <br />Inc. we assume this report is available and therefore is not <br />reproduced with this report. <br />1.1 Proposed Construction <br />It is our understanding that the proposed project will consist of <br />constructing a portal bench with methods of excavation cut and fill <br />placement. The excess excavated material will be used to construct <br />two (2) stockpile areas down hill from the proposed portal bench <br />site. The proposed excavation cut slope at the portal bench will <br />be constructed at an inclination of about one and one-half (1-1/2) <br />to one (1) (horizontal to vertical) with a vertical height of about <br />one hundred thirty (130) feet. The fill portion of the portal <br />bench and the stock pile areas will be constructed at an inclina- <br />lion of about two (2) to one (1). The portal bench fill will be <br />about one hundred thirty (130) feet high and the stockpile areas <br />will be about sixty (60) to eighty (80) feet high. The fill <br />material will be obtained from the proposed portal bench excava- <br />lion. . <br />1.2 Scope of Services <br />Our scope of services was to assess the theoretical calculated <br />stability of the proposed slopes. Our study included geotechnical <br />engineering review and analysis of existing data from geotechnical <br />engineering studies conducted for adjacent projects and report <br />I• <br />~iambert anD ~,~,~otiates <br />CONSULTING GEOTEONNICAL EN GIN EER$ AND <br />MATERIAL TESTING <br />