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1 ` <br /> Project: ARCO Station # 268 <br /> Log of Extraction WelUSpalrge Well: <br /> Location: 441 West Charter Way,Stockton,CA <br /> Project Number: 38466562 <br /> Drilling Contmetor: Woodward Drilling EW-12/SP-12 <br />! g Drilling Method: Hollow Stem Auger <br /> Borehole Name: EW-12/SP-12 <br /> f Dates Drilled: 1117/OS Well Construction Date: 11/7/05 <br /> Logged By: Scott Lookingbill,R.G. <br /> Borehole Diameter: 10-ioch Casing Diameter: EW-2-inch;SP-I-inch <br /> Type: SCH$0 PVC Checked By: Vern Elarth,R.G. <br /> Comments: <br /> Tota]Depth Drilled: 37 feet Screen Interval: EW-15-25,SP-M-33' <br /> Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> U c � <br /> Ei <br /> 0 <br /> r'1 x Sample ID i~ LrM0LOGY DESCRIPTION <br /> 0 WELL CONSTRUCTION <br /> Clayey Silt(ML). Dark brown,hard,low plasticity,no odor,moist. <br /> ressurelcap;SPdwel] 0 <br /> secured with slip cap <br /> Pending system <br /> > installation <br /> 5 Becomes light yellowish brown, <br /> 36 5 <br /> Neat Cement <br /> 2-10 ft <br /> Silty Clay(CL)- light brown,hard,medium plasticity,no odor,damp I <br /> to moist. <br /> 1Q <br /> 15 iBentonite Seal 10 <br /> 10-12 ft t <br /> 15 <br /> 57 <br /> Clayey Silt(ML). light yellowish brown,hard,non-plastic,caliche, 15 <br /> slight hydrocarbon-like odor,damp. <br /> 1; EW-12 <br /> 2-inch SCH 80 PVC <br /> Low plasticity- , 1 <br /> '. 0.020-inch Slot <br /> I' <br /> 21 $W-12-20 1210 ;1,1 Screen 15-25 fi 20 <br /> • <br /> 43 Filter Pack Sand <br /> 12-26 ti <br /> Bluish <br /> } 25 moist.Stay,firm non-plastic'trace sand,slight hydrocarbon-like odor, i e <br /> 15 ;,;;. <br /> ZSBentorli <br /> ! <br /> Clay(CL). Olive brown,hard high plasticity,slight hydrocarbon-like 26-30 ftp Seal <br /> r 30 odor,moist. <br /> 17 <br /> SP-12 30 <br /> • ]-inch SCH 80 PVC, <br /> 0.020-inchslot <br /> } Screen 31-33 ft <br /> #3 Filter Pack Sand <br /> 35-130-34 ft <br /> S <br /> r Bentonite Seat 35 <br /> 13 Silty Sand(SM). Bluish gay,very line to Fine grained sand,medium IM 34-37 ft <br /> dense,moderate hydrocarbon-like odor. <br /> a, <br /> 11 <br /> ,1 <br /> 2670 Gateway Oaks SW 300 <br /> Sacramento,CA 95933 <br /> 916-679-2000 <br />