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BORING LOG <br /> Protect No Boring Diameter 8 75" Logged By �G <br /> KEI-PSS-1013 P4 Casing Diameter 2" T S <br /> Project Name Unocal S/S#5098 Well Cover Elevation Date Drilled <br /> 5606 Pacific Avenue,Stockton N/A 11/20/95 <br /> Boring No Drilling Hollow-stem Drilling Company <br /> MW17 Method Auger Woodward Drilling <br /> Pene- GW O V M Depth Stratigraphy <br /> tration level (P P M) (feet) USCS Description <br /> blows/6" Samples <br /> 25 ---— Sandy silt,estimated at 35-45% very fine to fine-grained sand, trace <br /> 7111115 Z.——= clay, very stiff, moist,dark yellowish brown and light brownish gray, <br /> mottled,friable, with trace caliche <br /> 30 ML == Silt with sand, estimated at 15-25% very fine to fine-grained sand, <br /> 3/416 trace clay, firm to stiff,moist, yellowish brown <br /> 35 =_—= Silty very fine to fine-grained sand,estimated at 25-35% silt, medium <br /> 6/9113 ——— dense,moist,dark yellowish brown <br /> 8111116 40 CL Clay,estimated at 10-20% silt, trace sand,very stiff, moist, gray, with <br /> iron oxide staining <br /> Clayey sand with silt,sand i's <br /> very fine to medium-grained, estimated at <br /> SC 15-25%clay and 10-20% silt, medium dense to dense,moist,greenish <br /> gray, wrth c is e <br /> Page 2 of 3 <br />