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From THE UULCRN RRNCH CO ~ PHONE No. 303 9B4 3601 <br />CONCLUSIONS <br />Dec. 09 1994 12:4BPM P04 <br />1) The alluvial fan soils encountered at the site consist of a <br />combination of sandy clays and clayey to silty sands and <br />gravels with cobbles and boulders. The subsoils are medium <br />dense to dense and stiff to hard. Crounduater uas not <br />encountered Lo the maximum depth drilled, 71 Feet. <br />2) Foundations for the dewatoring structure and thickener may <br />consist of isolated spread footings, a mat or driven <br />piling. Testing of soil samples taken from the site <br />indicates the upper coils generally possess moderate bearing <br />capacity and erratic aettlerient/heave characteristics. <br />Providing structural till below shallow footings should he1D <br />"reduce foundation movement. A heavily reinforced mat, box <br />type spread footing or deep piling should also reduce <br />foundation movement potential. <br />3) Development of L•he cite will require a considerable amount of <br />grading. The on-site soils should be acceptable for use as <br />s~ructural fill. Fill embankments should be compacted to the <br />~b specifications and tested by a representative of the <br />geotechnical engineer, lliscussion concerning de3lgn and <br />~unslruutiun as related to geotechnical aspects of the oiLe <br />are presented in the body of the repur•L. <br />Chen & Associates <br />