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Date Start/Finish: 1/6/09, 1/16/09 Northing:N/A 1' 3oring ID: SB-2 <br /> `Drilling Company: Cascade Drilling,Inc. `►r Easting:N/A *r/ <br /> Driller's 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 /> .r Rig Type: Sonic Surface Elevation: N/A 3978 South Highway 99 <br /> Stockton,California <br /> Descriptions By: A.Brown/B.Gerard <br /> r <br /> N p_ <br /> a <br /> E 5 m <br /> c <br /> z n a E <br /> .r Z S w ncc c Well/Boring <br /> 5 Z v Stratigraphic Description Construction <br /> > CO rn <br /> H > n n o 2 > o <br /> (L w E E y p m o <br /> p w to cn a Q c� <br /> ss -5s <br /> v 6 (58- N/A 0.9 Brown CLAY and SILT(CL),trace coarse Sand,wet,no odor. <br /> 60 -60 60) <br /> 65 -65 <br /> 7 (68- 1.5 0.3 Brown CLAYEY SILT(ML),trace coarse Sand,wet,slightly sweet odor,grey <br /> 70) - interspersed. <br /> 70 -70 <br /> r <br /> 75 -7s <br /> Portland <br /> r 8 8�) N/A 0.2 — Brown CLAYEY SILT ML with coarse Sand,d no odor,black articles with sand. 0'bgs)Cement/Bentonite <br /> ( ) dry, P (0-150'bgs) <br /> 80 -80 <br /> V <br /> 85 -85 <br /> r 9 (88- 2.0 0.2 _ Brown SILT(ML)with fine Sand,dry,no odor. <br /> 90) <br /> 90 -90 <br /> i� <br /> 95 -95 <br /> 10 (98- 2.0 0.3 Brown to reddish brown poorly graded coarse SAND(SP),moist,no odor. <br /> 100-100oo 100) <br /> r <br /> Remarks: bgs=below ground surface;N/A=Not Applicable/Available. <br /> r <br /> . ARCADIS Notes: <br /> The 115 feet bgs sample was collected but not submitted due to the presence of gravel. <br /> Pf <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 /> Project: B0046012.0001 Template:Design-Rotosonic.ldfx Page:2 of 3 <br /> v Data File:SB-2.dat Date:3/20/2009 K.Wynne <br />