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Project: ARCO Station # 2168 Log of Extraction WeII/Sparge Well: <br /> • Location: 441 West Charter Way,Stockton,CA Project Number: 38466562 EW-1O/SP-10 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: EW-10/SP-10 <br /> Dates Drilled: 11/14/05 Well Construction Date: 11114/05 <br /> Logged B : Scott Lookitt bill, <br /> R.G. <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-32-34' Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments: <br /> 11 � <br /> UP. <br /> eu <br /> g <br /> s <br /> o ar <br /> U Sample ID a F 0 LITHOLOGY DESCRIPTION. WELL CONSTRUCTION <br /> 0- <br /> Silty Clay(CL). light yellowish brown,hard,medium plasticity,no EW well secured with 0 <br /> odor,damp. pressure cap;SP well <br /> secured with slip cap <br /> _ pending system <br /> installation <br /> 5 5 <br /> 20 0.0 Neat Cement <br /> 2-10 ft <br /> Silt(ML). light yellowish brown,bard,non plastic,no odor,dry to <br /> damp. <br /> € 10 <br /> �l 26 0,0 Bentonite Seal 10 <br /> 6 10-12 ft <br /> 17 0 0 X. <br /> Damp. <i i 15 <br /> V <br /> 2-inch SCH 80 PVC, <br /> 20 i:i!i 0.020-inch Slot <br /> Screen <br /> 15- <br /> 25ft —20 <br /> 22 EW-10-20 0.0 0905 15: #3 Filter Pack Sand <br /> 12-26 ft <br /> t Silty Clay(CL). Light olive brown,hard,low plasticity,slight <br /> • <br /> hydrocarbon-Eke odor,moist. <br /> 25 <br /> 25 <br /> Ill <br /> 44 0.0 <br /> 1 <br /> Bentonite Seal <br /> € 24 6.5 26-31 ft <br /> p 30 Clay(CL). Laght gray,stiff,high plasticity,trace sand,moderate <br /> f hydrocarbon-like odor,moist. 30 <br /> SP-10 <br /> 1-inch SCH 8o PVC, <br /> 0.020-inch Slot <br /> Screen 32-34 ft <br /> #3 Filter Pack Sand <br /> 35- 31-35 H <br /> 8 <br /> SZ <br /> 35 <br /> � 0.2 Bentonite Seal <br /> J +y 12 Silty Sand(514). Olive gray,very fine to fine grained sand,densc,sin <br /> 35-37 <br /> interbeds slight h <br /> hydrocarbon-like odor,sa[ura[ <br /> 3 ft <br /> Y ed <br /> 2870 Gateway Oaks Dr.,See_1W <br /> t Sacr niu,CA 95833 <br /> 916-679-2000 <br /> i` <br />