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Project: ARCO Facility No. 2093 <br /> 3425 Tracy Boulevard, Tracy, CA Log of Soil Boring No. B3 <br /> Logged By: L.Dorn Checked By: TR Date Started: 514193 Date Completed: 514193 <br /> Drilling Co: Wayne Drilling Co. Drill Bit Diameter(in): 8" Total Depth(ft):16.5 <br /> Driller- W. Taylor Backfill Material: Cement Grout from oft to 16.5 ft <br /> Drilling Method: Hollow Stem Auger Sampler: CA Modified Split-spoon <br /> Drilling Equipment: CME 75 Depth to Water at Time of Drilling(ft): 12.0 <br /> T <br /> LITHOLOGIC DESCRIPTION Lithology m .2 o C. REMARKS <br /> �- <br /> � � x <br /> Asphalt. <br /> FML Dark brown clay,gravel,wood chips, moderate ME <br /> I <br /> hydrocarbon odor. <br /> T ML 4 123 50 <br /> Sa.T Dark brown, slightly moist,moderate hydrocarbon odor. — 4 <br /> 6 <br /> 7 <br /> SILT Dark brown to green. — <br /> 5 <br /> 3 443 75 <br /> SILT Tan to light greenish brown,moderate hydrocarbon odor. — 7 <br /> — tl <br /> 14 <br /> --SP <br /> Silty SAND Medium grained, strong hydrocarbon odor. <br /> - - - -- - - - -- - - - - - - - - - - - - - - - - - - - - - - - =-M1 - <br /> _ 2 576 70 <br /> 10 — 4 <br /> SILT Brown,slightly moist,very weak hydrocarbon odor. — 4 <br /> 5 <br /> SAND Greenish brown, <25% silt,slightly moist,moderate <br /> SP <br /> hydrocarbon odor. <br /> SAND Brown, <25%silt,wet,very weak hydrocarbon odor. <br /> NR <br /> 15 — ML <br /> Sandy SII T Brown,slightly moist,no hydrocarbon odor. — <br /> 20 <br /> Project: A159W01 Roux Associates Page 1 of 1 <br />