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Project: ARCO Station # 2168 Log of Extraction Well/Sparge Well: <br /> Location: 441 West Charter Way,Stockton,CA Project Number: 38466562 EW-14/SP-14 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: EW-14/SP-14 <br /> Dates Drilled: 11/9/05 Well Construction Date: 11/9/05 togged By: Scott Lookingbill,R.G. <br /> Borehole Diameter: 10-inch Casing Diameter: EW-2-inch;SP-]-inch Type: SCH 80 PVC Checked By: Vem Elarth,R.G. <br /> iTotal Depth Drilled: 37 feet Screen Interval: EW-15-25';SP-33-35' Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> j Comments: <br /> uw 5 Vrz <br /> 8 !~ a <br /> Sample ID a f C7 LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 0 EW well secured with 0 <br /> .Sy Silt(NH,). Dark brown, m,non-plastic,no odor,dry to damp. pressure <br /> cap;SP ca <br /> secured with p <br /> sp <br /> i U pending system <br /> 8 installation <br /> I 5 Silty Clay(CL). Light yellowish brown,stiff,medium plasticity,no 5 <br /> odor,damp. <br /> 22 Neat Cement <br /> 2-10 ft <br /> 4 <br /> 10 <br /> 32 Becomes tight brown,hard. Bentonite Seal 10 <br /> i10-12 ft <br /> Silt(HH.). Light yellowish brown,hard,non plastic,no odor,damp, <br /> 15 " 15 <br /> 40 <br /> ;y;' <br /> EW-14 <br /> 2-inch SCH 80 PVC, <br /> 20X `�;5 0.020-inch Slot <br /> , 'r Screen 15-25 ft <br /> —20 <br /> 27 EW-14-20 0910 rr. #31•tlter Pack Sand <br /> 12-26 ft <br /> SiltyClay(CL Olive ;. <br /> y }• gray,hazel,low plasticity,slight hydrocarbon- <br /> rte' like odorX ,moist, p' <br /> 25 d,.i; <br /> —25 <br /> 33 <br /> 1 <br /> i Bentonite Seal <br /> 1[ 26.31 ft <br /> t 30 <br /> Z5 Becomes olive brown,no odor. 30 <br /> r SP-14 <br /> k 1-inch SCH 80 PVC, <br /> 0.020-inch Slot <br /> Screen 33-35 ft <br /> #3 Filter Pack Sand <br /> 35 <br /> 1 14 31-35.5 ft 35 <br /> 34 Q Bentonite Sea] <br /> 35.5-37 ft <br /> Silty Sand(SM). Bluish gray,dense,moderate hydrocarbon-like odor, <br /> saturated. <br /> t 8?0 Gste�ay Oaks aaarreato,CA 95933 <br /> 916-679-2000 <br /> 300 <br /> S <br /> 916-679-2000 <br />