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M99238GE <br />U <br />1.0 INTRODUCTION <br />This report presents the results of the geotechnical engineering <br />study we conducted for the proposed Sediment Pond "B" for the Bowie <br />Number 2 Mine near Paonia, Colorado. The study was conducted at <br />the request of Mr. Jim Stover, J.E. Stover and Associates, in <br />accordance with our proposal for geotechnical engineering services <br />dated October 29, 1999. <br />The conclusions, suggestions and recommendations presented in <br />this report are based on the data gathered during our site and <br />laboratory study and on our experience with similar soil condi- <br />tions. Factual data gathered during the field and laboratory work <br />are summarized in Appendices A and B. <br />1.1 Proposed Construction <br />We understand that the proposed project will consist of plan- <br />ning, designing and constructing a sediment pond for Bowie Number 2 <br />Mine. The pond will be constructed partially as an excavation cut <br />and partially as an embankment fill. The pond will be about two <br />hundred (250) feet long by about fifty (50) feet wide and will have <br />a maximum water depth of ten (10) feet. We understand that the <br />proposed pond will be empty for the majority of the time and will <br />be filled periodically from storm events. The pond is designed to <br />empty within about two (2) days. We understand that the proposed <br />embankment will not include a subsurface drain and seepage losses <br />will not be controlled. <br />1.2 Scope of Services <br />Our services included geotechnical engineering field and labora- <br />tory studies, analysis of the acquired data and report preparation <br />for the proposed site. The scope of our services is outlined <br />below. <br />- The field study consisted of describing and sampling the soil <br />materials encountered in four '(4) auger advanced test borings <br />at the proposed Sediment Pond "B" site location. <br />1 <br /> <br />Lambert ana ~s,~ociares <br />CONSGLiING GEO*EOe e~G~~ EN GIN EEAS •NO <br />u •'ERU~ TESTwG <br />