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USPCI LOG BO TNG NO. SB-2 <br /> a Laidlaw Company Page 1 of 1 <br /> CLIENT: Union Pacific Railroad JOB NO.: 96473 <br /> PROJECT: Stockton Derailment LOCATION: Stockton, CA <br /> DRILLED BY: PC Exploration DRILLER: METHOD: 8" HSA <br /> START DATE: 6/19/96 COMP. DATE: 6%19/96 SURF. EL.: FT. est. TD: 26.5 FT. BGS <br /> LOGGED BY: Ken Rose D. T. WATER: FT. BGS <br /> WELL DPT GRAPHIC LOG SAMPLE BLOW <br /> DIAGRAM DESCRIPTION USCS CODE OVM NUMBER COUNT <br /> 0 Gray railroad ballast,dry, no staining a ' <br /> Brown sandy gravel with some wood and metal debris,dry, no odor 0.�;�. 0 ppm <br /> ;.•oQ;.• G4L <br /> O: O SW <br /> ..', 1 ppm <br /> 5 As above,encounter day at 6.5' <br /> •.o:o�.o: <br /> ------------------------------------------------- <br /> Brown silty clay, trace fine sand,slightly moist,slight diesel odor 40 <br /> PPM <br /> 18 <br /> 10 Light grayish brown day,trace silt, slightly moist, no odor ppm SB-2 10' <br /> 1100 (2) <br /> 10 <br /> PPM <br /> 15 As above,trace silt and fine sand,slightly moist,no odor 1 ppm <br /> CL <br /> 1 ppm <br /> 20 As above,no odor 1 ppm <br /> 0 ppm <br /> As above,trace silt and fine sand,slightly moist,no odor <br /> 25 0 ppm SB-2 25' <br /> 1145 (2) <br /> Boring completed to 26.5' <br /> No groundwater encountered <br /> 30 <br /> 35 <br /> OB NUMBER.98473 <br />