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i <br /> Project: ARCO Facility No. 2093 E <br /> 3425 Tracy Boulevard, Tracy, CA Log of Soil Boring No. B4 <br /> Logged By: T.Ramsden Checked By: LD Date Started: 5/4/93 Date Completed: 514/93 i <br /> Drilling Co: Wayne Drilling CO. Drill Bit Diameter(in): S" Total Depth(fl):16.5 <br /> f Driller: W. Taylor Backfill Material: Cement Grout from Oft to 16.5 ft r <br /> Drilling Method: Hollow Stems Auger Sampler: CA Modified Split-spoon <br /> Drilling Equipment: CME 75 Depth to Water at Time of Drilling(it): 12.0 <br /> A s LITHOLOGIC DESCRIPTION Lithology E = 0 REMARKS <br /> V x <br /> ' Asphalt. I <br /> — I <br /> = 1 <br /> Sandy SILT Dark brown,moist,cohesive,moderate hydrocarbon <br /> odor- <br /> 3 8 70 <br /> — 4 <br /> 5 4 <br /> SILT Medium green to dark brown,trace sand,slightly moist, — 7 <br /> slightly cohesive,weak hydrocarbon odor. — <br /> — I <br /> I <br /> 4 145 80 1 <br /> 10: SILT Olive green,trace fine sand,moist,cohesive,very weak — 5 <br /> hydrocarbon odor. — 9 <br /> 10 <br /> - 1 <br /> 5 100 <br /> 15 SILT Medium to dark brown,trace fine sand,wet at top,moist at l l <br /> bottom,hard,no odor. 15 <br /> — IS <br /> i <br /> i <br /> k 2fl <br /> Project: A159W01 Roux Associates Page 1 of 1 I <br /> 3 <br /> I <br />