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E, <br /> Project: ARCO Station # 2168 Log of Extraction Well/Sparge Well: <br /> Location: 441 West Charter Way,Stockton,CA Project Ntttnber: 38466562 EW-13/SP-13 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: EW-13/SP-13 <br /> Dates Drilled: 1118105 Well Construction Date: 11/8105 <br /> Logged By: Scott Lookingbill,R.G. <br /> Comments: <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-31-33' Slot Size: 0.420-inch Sampling Method <br /> P g : CA Modified Split Spoon <br /> ?? o ovpo <br /> 0 <br /> a o� 'Ell au <br /> a Z x Sample ID "' F' C7 LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> Q <br /> v Silty Clay(CL). Dark yellowish brown,firm,medium plasticity,no EW well secured with 0 <br /> odor,moist. pressure cap;SP well <br /> secured with slip cap <br /> R pending system <br /> installation <br /> 5 <br /> 12 5 <br /> Neat Cement <br /> 2-1Q ft <br /> 10 <br /> 31 <br /> Becomes light yellowish brown,hard. 10 <br /> Bentonite Seal <br /> 10-12 ft <br /> Silt(ML).Olive brown,hard,non-plastic,slight hydrocarbon-like odor, <br /> 15— damp. <br /> 38 i•:!: 15 <br /> I <br /> EW-13 <br /> 2-inch SCH So PVC, <br /> 20 :. 0.020-inch Slot <br /> °I= Screen 15.75 ft <br /> 21 EW-13-20 0855 #3 Flter Pack Sand 20 <br /> 12-26 ft <br /> Trace sand. <br /> —25 <br /> Clay(CL). Olive brown,hard,high Plasticity,slight hydrocarbon-like <br /> odor,moist. Bentonite Seal <br /> 26-30 ft <br /> 30- <br /> 35 30 <br /> SP-13 <br /> 1-inch SCH So PVC, i <br /> 0.020-inch Slot <br /> 1 Screen 31-33 ft <br /> #3 Filter Pack Sand <br /> 35 Q 30-34 ft <br /> 18 Sand(SP). Olive a v Bentonite Seal 35 <br /> gray, d fine to Cme grained sand,medium dense, 3437 ft <br /> 38 strong hydrocarbon-like odor,saturated. <br /> I <br /> r <br /> 1 2870 Gateway Oaks Dr.,Ste 300 <br /> + Sacrfin=o,CA 95833 <br /> 9W679-2000 <br />