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S <br /> l <br /> Project: ARCO Station # 2168 Log of Sparge Well: <br /> I Location: 441 West Charter Way,Stockton,CA Project Number: 38466562 SP-19 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger Borehole Name: <br /> SP-19 <br /> Dates Drilled: 11!4/05 Well Construction Date: 1114/05 <br /> Logged By: Scott Lookingbill,R.G. <br /> E Borehole Diameter: 8-inch Casing Diameter: 1-inch SCH SO PVC Checked By: Vem Elar[h,R.G. <br /> Type: <br /> f Total Depth Drilled: 37 feet Screen Interval: 31-33 feet Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> Comments: <br /> � d <br /> o-� cn <br /> � t Q �g a <br /> x Sample ID ° P 0 LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 0 <br /> Silty Clay(CL). Olive brown,stiff,high plasticity,minor gravel,slight Well secured with slip 0 <br /> hydrocarbon-like odor,moist- cap pending system <br /> 61 installation <br /> V <br /> U <br /> !fl <br /> 5 <br /> 11 5 <br /> to <br /> 14 Minor sand,no gravel,damp. 10 <br /> i <br /> Silt(ML.)- Olive brawn,slightly plastic,stiff,minor sand,slight <br /> hydrocarbon-like odor,moist. <br /> 15 Neat cement from <br /> 20 near surface to 26 ft 15 <br /> i <br /> i <br /> 211- <br /> 31 <br /> 031 SP-19-20 L20 <br /> 111"5 1425 <br /> Clay(CL)- Olive gray,medium plasticity,hard,moderate i <br /> hydrocarbon-like odor,moist. <br /> 25—X62 25 <br /> Bentonite Seal <br /> i 26-30 It <br /> 30 5z <br /> 19 Becomes olive brown,slight hydrocarbon-like odor. SP-19 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). Dark bluish gray,very fine to fine grained sand, Benton <br /> 15 moderate hydrocarbon-like odor,saturated. Brutonite Seal33.5-57 ft 35 <br /> 24 <br /> i <br /> F <br /> ' 2870 Gateway Oaks Dr..Ste 300 <br /> 5acrAncato,CA 95833 <br /> 916-679-2000 <br />