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r r <br /> Date Start/Finish: 1/6/09,1/16/09 Northing:N/A Well/Boring ID: SB-2 <br /> Drilling Company: Cascade Drilling,Inc. Easting:N/A <br /> Drillees Name: Angel Rocha Casing Elevation: N/A Client:Chevron Environmental Management <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 /> r <br /> Descriptions By: A.Brown/B.Gerard <br /> C <br /> u n <br /> n <br /> r a8 n E <br /> Z '' Well/Boring <br /> Stratigraphic Description Construction <br /> = Q o S o m <br /> r..4 n a _ o <br /> LU d <br /> 0 w(a n a ¢ 0 <br /> r 105-105 <br /> Brown SILTY CLAY(CL)with Gravel,moist,no odor. <br /> 11 (108- 2.0 0.1 <br /> 110) - _ Brown Silt(ML),trace Sand,moist,no odor. <br /> r 110-110 <br /> 12 (113- WA WA Gravel(GW)with coarse Sand,moist,no odor. <br /> 115) <br /> V 115-115 <br /> 120-120 <br /> r (125; 0.0 WA No recovery. <br /> 125-125 <br /> r <br /> Portland <br /> Cement/Bentonite <br /> 13 (128- 0.1 WA Brown SANDY SILT(ML),moist,no odor,poor recovery. (0-150'bgs) <br /> 130-130 130) <br /> V <br /> Brown SANDY SILT(ML),wet,no odor. <br /> 14 (133- WA 0.5 <br /> 135) Brown well graded SAND(SW),moist,no odor. <br /> 135-135 <br /> V <br /> 15 (138- 0.0 WA No recovery. <br /> 140) <br /> 140-140 <br /> r <br /> 16 (143- WA 0.5 Brown SILTY CLAY(CL),trace Sand,dry,no odor. <br /> 145) <br /> 145-145 <br /> Y�1 <br /> 17 (148- WA 0.0 ' ' Brown SANDY SILT(ML),dry,no oda. <br /> 150) <br /> End of boring 150'bgs <br /> r <br /> V <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 /> Infiastnxture,environment facilities feet bgs to 130 bgs due to soil slumping. <br /> r <br /> Project: B0046012.0001 Template:Design-Rotosonic.idfx Page:3 of 3 <br /> Data File:SB-2.dat Date:3/20/2009 K.Wynne <br /> r <br />