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r <br /> Date Sfart/Finish: 116/09,1/16109 Northing:N/A Well/Boring ID: SB-2 <br /> Drilling.Company: Cascade Drilling,Inc. Easting:N/A <br /> Drillers Name: Angel Rocha Casing Elevation: N/A Client:Chevron Environmental Management <br /> r, 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 /> Cl n <br /> r E n _v <br /> a n E <br /> Z C S n u Well/Boring <br /> StratigraphiCDescription Construction <br /> CL <br /> CL w E E C) m o <br /> 0 W C6 to� a Q c7 <br /> r <br /> 0 0 <br /> Airknifed/Hand augered to 8'5"bgs. <br /> r 5 -5- <br /> 1 (8- 1.5 0.0 Reddish brown SILT(ML),wet,no odor. <br /> 10) <br /> V 10 -10- <br /> Reddish brown SILTY CLAY(CL),dry,no odor. <br /> I�el 15 -15 <br /> 2 (18- 1.5 0.0 Reddish brown SILT(ML),moist,no odor. <br /> zo -20 20) <br /> FILM <br /> r - <br /> 25 -25 <br /> Portland <br /> r.r Cement/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 /> 0-0 <br /> r <br /> 35 -35 <br /> r <br /> 4 (38- 1.5 0.0 Brown SILT(ML),trace fine Sand,mast,no odor. <br /> 40) <br /> 90 -40 <br /> r <br /> 45 -45 <br /> r <br /> 5 (48- WA 0.3 Brown SILT(ML),little Clay,trace fine Sand,moist,no odor. <br /> 50) <br /> so -so <br /> r <br /> Remarks: bgs=below ground surface;N/A=Not Applicable/Available. <br /> ARCADIS Notes: <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 /> Infrastructure,environment facilities feet bgs to 130 bgs due to soil slumping. <br /> r <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 <br />