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M05003MT <br />• <br />1.0 INTRODUCTION <br />This report presents the results of the geotechnical engineering <br />study we conducted for the existing and proposed Bowie Number 2 <br />Mine gob pile near Paonia, Colorado. The study was conducted at the <br />request of Mr. Jim Stover and Mr. Bill Bear in accordance with our <br />proposal for geotechnical engineering services dated October 15, <br />2003 and our discussion on February 4, 2005. <br />The conclusions, suggestions and recommendations presented in <br />this report are based on the data gathered during our laboratory <br />study and on our experience with similar soil conditions. Factual <br />data gathered during the laboratory work are summarized in Appendi- <br />ces A and B. <br />1.1 Proposed Construction <br />It is our understanding that the gob pile is currently under <br />construction and is approaching one hundred (100) feet in vertical <br />height. The face of the constructed gob pile is laid back at a <br />slope inclination of about two to one (2:1) horizontal to vertical. <br />We also understand that the proposed gob pile will be constructed <br />to about two hundred thirty (230) feet in total height. The slope <br />face of the pile will include three (3) horizontal benches, fifteen <br />(15) feet in width located approximately every fifty (50) vertical <br />feet and a haul road twenty (20) feet in width. <br />We understand that our stability analysis presented in our <br />January 13, 2005 Geotechnical Engineering Study has prompted <br />additional laboratory testing of the gob material and a subsequent <br />analysis. <br />1.2 Scope of Services <br />Our services included geotechnical engineering laboratory stud- <br />ies, analysis of the acquired data and report preparation for the <br />existing and proposed gob pile construction. The scope of our <br />services is outlined below. <br />~~ <br />~Cam6ert anD ~,ooociates <br />CONSULTING GEOTECNNICAL ENGINEERS ANp <br />MATERIAL TESTING <br />