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f <br /> t Project: ARCO Station # 2168 Log of Extraction Well/Sparge Well: <br /> Location: 441 West Charter Way,Stockton,CA Project Number: 38466562 <br /> EW-11 <br /> ---------------- <br /> ElDrilling Contractor: Woodward Drilling Drilling Method: Hallow Stem Auger Borehole Mame: EW-II/SP-11 <br /> l Dates Drilled: 1117/05 Well Construction Date: 11/7/05 <br /> Logged B : Scott I ookin <br /> gg Y gblll,R.G. <br /> Borehole Diameter. 14-inch Casing Diameter: EW-2-inch;SP-1-inch Type: SCH 80 PVC Checked By: Vem Elarth,R.G. <br /> { <br /> Total Depth Drilled: 37 feet Screen Interval: EW-15-25;SP-31-33' Slot Size: 0.42Q-inch Sampling Method: CA Modified Split Spoon <br /> P <br /> Comments: Pm not working due to rain <br /> j v o a y <br /> q <br /> Sample 1D a E= t5 <br /> LTTIiQLOGY DFSCRIPI'ION <br /> 0 WELL CONSTRUCTION <br /> v Silty Clay(CL). Dark reddish brown,stiff,high plasticity,moist. EW well secured with 70 <br /> pressure cap;SP well <br /> secured with slip cap <br /> f U pending system <br /> installation 1 <br /> 5—x $ Neat Cement 5 <br /> 2-10 ft <br /> Clayey Silt(ML). Light yellowish brown,hard,low plasticity,slight <br /> r/ hydrocarbon-like odor,damp. i <br /> 10 <br /> 32 10 <br /> Bentonite Seal <br /> t.= 10-12 N <br /> IS <br /> 21 <br /> Moderate hydrocarbon-like odor. _`' 15 <br /> EW-11 <br /> 2-inch SCH 80 PVC, <br /> 20 <br /> 0.020-inti Slot <br /> Olive brown. ;`:; Screen 15-25 ft 20 <br /> 31 EW-I1-20 0$35 #3 Filler Pack Sand <br /> 12-26 ft <br /> i <br /> Clay(CL). Olive gray,hard,medium plasticity,moderate ,:,: <br /> 25— hydrocarbon-tike odor. <br /> 20 25 <br /> Bentonite Sea[ <br /> 26-30 ft <br /> 30 E <br /> r+ <br /> 36 High plasticity,saturated. SP-11 30 <br /> 1-inch SCH 80 PVC, <br /> 0.020-inch Slot <br /> Screen 31-33 ft <br /> #3 Filter Pack Sand <br /> 30-33.5 ft <br /> 35— Silty Sand(SM). Bluish gray,very fine to fine grained sand,dense, Bentonite Seal 35 <br /> 8 moderate hydrocarbon-like odor,saturated. 33.5-37 ft <br /> 41 <br /> ± 2870 Gateway Oaks Dr,Ste 300 <br /> F Sacrnvenm,CA 95833 <br /> 916-679-2000 <br />