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MOORE & TABER NORTHERN CALIFORNIA <br /> CONSULTING ENGINEERS AND GEOLOGISTS <br /> -3- <br /> estimate of soils consistency. Selected "undisturbed" samples <br /> were retained in moisture-proof containers for laboratory <br /> testing and reference. Bulk samples of near-surface soils <br /> were recovered from shallow hand-dug test pits nearby borings <br /> but off roadway. <br /> Soils were field-classified by an engineer as to <br /> consistency, color , gradation , texture , etc. , on the basis <br /> of penetration resistance and inspection of samples and auger <br /> cuttings. Groundwater observations were made in the borings <br /> during and after drilling operations. <br /> Laboratory testing on "undisturbed" samples included <br /> moisture content-dry density, unconfined compression and direct <br /> shear strength. Tests performed on bulk samples included <br /> Expansion Index (per UBC 29-2) . <br /> Locations were selected by John Cavin and are referenced <br /> to an undated site plan (scale 1"=200 ' ) prepared by Cavin <br /> Engineering, Inc. ; elevations, by interpolation of spot elevations <br /> on the noted reference. Locations, details of borings and <br /> results of tests are shown on Figures 1-2 , appended. Field <br /> engineer for the project was George B. Young, Jr. <br /> Earth Materials-Foundation Conditions <br /> Soils encountered at the three boring sites were highly <br /> variable but may be divided into two general native soils units. <br />