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Aug-21-96 O6:35A Lincoln DeVore of Grd Jct 970-242-1561 P.O3 <br />INTRODUCT~OI!( <br />1'kOJFCT DESCRIPTION <br />this report presents the results of our <br />geotechnical evaluation performed to determine thc: general tiut,- <br />surface conditions of the existing embankment crest on t.l:e North <br />sida of the Sediment Pond RP-a, Descrado Mint, Rio Alanr.o Count~•, <br />Colortcdo. A vicinity map is included in the Appendix of ibis <br />repot•t. <br />To assist in our explorat.iou, ,Jai Mere <br />provided with a map of Sediment Pond RP-3, prepared trv Ford, <br />Racon d Davis l!tnh, Inc., Owm~rs Drawing Kumbec• "/.C'Tl'-OIYI, r•ei i- <br />Sion :~, last, date 11-26-50. The Boring Location Plan attec•tre,i to <br />t.)tis report is based on that plar, provided t.o us. <br />The field exploration was conducted <br />along t.hc crest of the existing Sediment Pond RP-I, in en area <br />with an embankment fill thickness of between 8 feet to approxi- <br />mately 19 feet, by the explotation borings. This es[.iutatt•d <br />height is based upon changes in soil type and density, as encnttr.- <br />tet•ed daring dri].Iing. It was reported to Li:rcoln De1'ore that <br />this portion of the embankment developed vertical c•racl:ing, which <br />extended along the embankment access. The vertical cracking had <br />t.oen filled with soil prior to the arrival of Lim.•oln Dc\~,~re <br />l,ersonnel on the site. <br />1 <br />