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Project: ARCO Station # 2168 Log of Sparge Well: <br /> rFLocation: 441 West Charter Way,Stockton,CA Project Number: 38466562 parg <br /> SP-20 <br /> .Drilling Contractor: Woodward Drilling Drilling,Method: Hollow Stem Auger <br /> Borehole Name: SP-20 <br /> Dates Drilled: 11/9/05 Well Construction Date: 11/9/05 <br /> Logged By: Scott Lookingbill,R.G. <br /> j Borehole Diameter: 8-inch Casing Diameter: 1-inch <br /> Type: 5CH 80 PVC Checked By: Vern Elartll,R.G. <br /> Total Depth Drilled: 37 feet Screen Interval: 32-34 feet <br /> Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments: No sample collected at this location. <br /> (U <br /> d <br /> . toW a v <br /> E o y <br /> 6' Sample ID °' N C7 LITIIOLOGY DESCREMON <br /> 'o Silt(M L). Olive brown,minor gravel,firm,moderate hydrocarbon-like 710 <br /> slip 0 <br /> Y <br /> odor,moist. <br /> U <br /> U <br /> t� <br /> 5 <br /> to 5 <br /> 10 Silty Clay(CL). Yellowish brown <br /> low plasticity,hard,no odor,moist. <br /> 1g <br /> Silt(ML). Yellowish brown,stiff,non plastic,no odor,damp. <br /> IS <br /> Neat cement from i <br /> 36 near surface to 27 ft 15 <br /> i <br /> i <br /> i <br /> 20 i <br /> 39 Becomes olive brown,trace sand. 20 <br /> I <br /> i Clayey Silt(ML). Olive gray,firm,slight hydrocarbon-like odor, I <br /> moist. <br /> 25—Z <br /> 22 <br /> 125 <br /> Q Silty Clay(CL). Light yellowish brown,hard,medium plasticity,no <br /> odor,saturated. <br /> Bentonite Seal <br /> ' 30 27-30 k <br /> Z13 30 <br /> }; SP-20 <br /> 1-inch SCH 80 PVC, <br /> g 0.020-inch Slot <br /> Screen 32-34 ft <br /> =; #3 Filter Pack Sand <br /> 35- 30.35 ft <br /> Bentonite Seal 35 <br /> Silty Sand(SM). Bluish gray,very fine to fine grained sand,medium 35-37 ft <br /> dense,moderate hydrocarbon-like odor,saturated. <br /> II. <br /> J. <br /> i <br /> 2870 Gateway yaks Dr.,Ste 300 <br /> Sacramento,CA 95833 <br /> 916-679-2000 <br />