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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-3/SP-3 <br /> 1 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Anger Borehole Name: EW-3/SP-3 <br /> I <br /> Dates Drilled; 11/4105 Well Construction Date: 1114105 <br /> Logged By: Scott Lookingbill,R.G. <br /> Borehole Diameter: 10-inch Casing Diameter: EW-2-inch;SP-I-inch Type: SCH 80 PVC Checked By: Vern Elarth,R.G. <br /> F: Total Depth Drilled: 39 feet Screen Interval: EW-15-25;SP-36-38' Slot Size: 0.020 inch Sampling Method: CA Modified Split Spoon <br /> Comments: <br /> � d <br /> F <br /> FP_S Sample ID °' F' 0 LITHOLOGY DESCRIP'T'ION <br /> 0 WELL CONSTRUCTION <br /> t <br /> Silty Clay(CL). Light reddish brown,stiff,medium plasticity,no odor, EW well secured with 0 <br /> moist. pressure cap;SP well <br /> Fsecured with slip cap <br /> pending system <br /> installation <br /> 1 <br /> S <br /> 21 Neat Cement 5 <br /> l 2-10ft <br /> Silt(ML), Light yellowish brown,hard,nonplastic,no odor,damp. <br /> F co <br /> 5016 10 <br /> Bentonite Seal <br /> 10-12 ft <br /> Clayey Silt(ML). Light yellowish brown,medium plastic,fhm,no @ i'•.1 - <br /> odor,moist. <br /> 15— <br /> r`•!: <br /> 19 <br /> � <br /> iii EW-3 <br /> ;:;:i 2-inch SCH 80 PVC, <br /> 80 0.020-inch Slot <br /> r Screen 15-25 ft <br /> 35 EW-3-20 0850 -20 <br /> #3 Filter Pack Sand <br /> Clay(CL). bight reddish brown,hard, plasticity,slight ght 12-26 f <br /> hydrocarbon-like odor,moist to saturated. <br /> E ZS ,�:: <br /> 28 25 <br /> Bentonite Seal <br /> 90 Trace very <br /> ry fine gained sand,olive gray,moderate hydrocarbon-like odor. 26-33 ft 30 <br /> r <br /> t <br /> 35 Silt(ML). Bluish gray,trace clay and sand,firm,low plasticity,strong SP-3 <br /> 11 hydrocarbon-like odor,saturated. 1-inch SCH 8o PVC 35 <br /> 0.020-inch Slot <br /> ' 19 Screen 36-38 ft <br /> 26 #3 Filter Pack Sand <br /> Clay(CL). Bluish gray,hard,medium plasticity,moderate 33-39 ft <br /> 72 hydrocarbon-like odor. <br /> F <br /> 2870 Gateway Oaks Dr.,Ste 300 <br /> URS Sacramgtto,CA 95833 <br />€' 916-579-2000 <br />