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Date Start(Finish: 1/6/09,1/16/09 Northing:N/A oil/Boring ID: SB-2 <br /> Drilling Company: Cascade Drilling,Inc. Easting:N/A Client: Chevron Environmental Management <br /> Driller's Name: Angel Rocha Casing Elevation: N/A 9 <br /> Drilling Method: Sonic,Mud Rotary Company <br /> +� Sampling Method: California Split Spoon Sampler Borehole Depth: 150'bgs Location: Chevron Service Station 309075 <br /> Rig.Type:Sonic Surface Elevation: N/A 3978 South Highway 99 <br /> Stockton,California <br /> Descriptions By: A.Brown/B.Gerard <br /> .r <br /> a a <br /> CL d <br /> E a a E <br /> Z c ' w a c Well/Boring <br /> S <br /> 0 �' c Stratigraphic Description Construction <br /> = <br /> RCL > CION > n c o 2 5 c <br /> a. W E Eami a a0i <br /> W <br /> w cn CO a Q 0 <br /> v 0 0 <br /> Airknifed/Hand sugared to 8'5"bgs. <br /> yr 5 -5 <br /> 1 (8 1.5 0.0 — Reddish brown SILT(ML),wet,no odor. <br /> 10) <br /> 10 -10- <br /> Reddish brown SILTY CLAY(CL),dry,no odor. <br /> 15 -15 <br /> V <br /> 2 (18- 1.5 0.0 _ Reddish brown SILT(ML),moist,no odor. <br /> 20) <br /> 20 -20 <br /> u <br /> 25 -25 <br /> e..i Portland <br /> Gement/Bentonite <br /> (0-150'bgs) <br /> 3 (28- 1.5 0.1 _ Brown SILT(ML),little Clay,moist,no odor. <br /> 30 -30 30) <br /> ai <br /> 35 -35 <br /> I.r <br /> 4 1.5 0.0 <br /> 40) _ Brown SILT(ML),trace fine Sand,moist,no odor. <br /> 40) <br /> 90 -40 <br /> ar <br /> 45 -45 <br /> 1�1 <br /> 5 (48.50 N/A 0.3 _ Brown SILT(ML),little Clay,trace fine Sand,moist,no odor. <br /> 50 -50 <br /> w <br /> Remarks: bgs=below ground surface;N/A=Not Applicable/Available. <br /> Notes: <br /> ARCADIS <br /> ..r The 115 feet bgs sample was collected but not submitted due to the presence of gravel. <br /> The 130 feet bgs sample was collected but not submitted;bentonite was added from 125 <br /> rnfrastructure,env;fonrnernt tacilities feet bgs to 130 bgs due to soil slumping. <br /> V <br /> Project: 60046012.0001 Template:Design-Rotosonic.ldfx Page:1 of 3 <br /> Data File:SB-2.dat Date:3/20/2009 K.Wynne <br /> r.r <br />