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f <br /> Project: ARCO Station # 2168 Log of Extraction Well/Sparge Well: <br /> Location: 441 West Charter Way,Stockton,CA Project Number: 38466562 EW-15/SP-15 ISP-1$ <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: EW-15/SP-15 <br /> I <br /> Dates Drilled: 11/15/05 Well Construction Date: 11/15/05 Logged By: Scott Lovkingbill,R.G. <br /> Borehole Diameter: 10-inch Casing Diameter: EW-2-inch;SP-1-inch Type: SCH 80 PVC Checked By: Vern Elarth,R.G. <br /> Total Depth Drilled: 37 feet Screen Interval: EW-15-25;SP-32-34' Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments: <br /> ro � <br /> s <br /> i I x Sample ID <br /> 0 LrMOLOGY DESCRIPTION WELL CONSTRUCTION <br /> Silt(ML). Tight yellowish brown,hazel non plastic,no odor,dry to EW well secured with 0 <br /> damp, pressure cap;SP well <br /> °3 secured with slip cap <br />'i pending system <br /> m installation <br /> 5 <br /> t 34 0.0 5 <br /> Neat Cement <br /> 2-10 ft <br /> Silty Clay(CL). light yellowish brown,very hard,low plasticity,no <br /> odor,dry to damp. <br /> ]0 <br /> 5015 0.0t0 <br /> Bentonite Seal <br /> 10-12 ft <br /> Clayey Silt(ML). Light yellowish brown,stiff,low� plasticity,no odor, , <br /> R 23 0.0 i`i 15 <br /> :5 <br /> s��'i EW-I5 <br /> 2-inch SCH 80 PVC, <br /> 20—X0.020-inch Slot <br /> Moist. ;!; Screen 15-25 ft <br /> Iti 13 EW-15-20 0.0 0920 :,i� -; #3 Filter Pack Sand —20 <br /> 12-260 <br /> Silty Clay(CL). Olive gray,stiff,medium plasticity,moderate <br /> hydrocarbon-like odor,damp. <br /> 25 <br /> 31 6.4 ' 25 <br /> Clay(CL). Olve brown,hazel hi plasticity, Bentonite Sea] <br /> high p ty,no odor,moist_ 26-31 ft <br /> 30—.X 11 - <br /> FAN <br /> 15 0.6 30 <br /> SP-15 <br /> 1-inch SCH 90 PVC, <br /> 1 - 0.020-inch Slat <br /> Screen 32.-34 ft <br /> #3 Filter Pack Sand <br />€ 35 SZ 31-34.5 ft <br /> 15 2 4 Silty Sand(SM). OMY,very fine to fine Bentonite Seal <br /> 35 <br /> y ry grained sand,dense,moderate <br /> k i 40 hydrocarbon-like odor,saturated. 34.5-37 ft <br /> r <br /> c <br /> i <br /> 4 f <br /> I <br /> 2870 Gateway Oaks Dr.,Ste 300 <br /> Sacramento,CA 95833 <br /> 916-679-2000 <br />