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Project: ARCO Station # 2168 <br /> F Location: 441 West Charter Way,Stockton,CA pro• Lag of Extraction Well/Sparge Well: <br /> ]ect Number: 38466562 EW-7/SP-7 <br /> Drilling Contractor: Woodward Drilling Drilling Method: Hollow Stem Auger <br /> �t <br /> � <br /> Borehole Name: EW-7/SP-7 Dates Drilled: 11110105 Well Construction Date: 11110/05 <br /> Logged By: Scott Lookingbill,R.G. <br /> Borehole Diameter: 10-inch Casing Diameter: EW-2-inch;SP-1-inch <br /> Type: SCH g0 PVC Checked By: VernElarth,R.G. <br /> I Comments: ;SP-31-33' <br /> Total Depth Drilled: 37 feet Screen Interval: EW-15-25'' Slot Size: 0.020-inch Sampling Method: CA Modified Split Spoon <br /> E <br /> a <br /> otin <br /> 'er <br /> w U g <br /> c. <br /> _o <br /> U2 Sample m LITHOLDGY DESCRIPTION <br /> 0 WELL CONSTRUCTION <br /> v Silty Clay(CL), light yellowish brown,hard,medium plasticity,no 1101 well secured with 0 <br /> odor,damp. pressure cap;SP well <br /> secured with slip cap <br /> ? pending system <br /> installation <br /> 5 <br /> 35 <br /> Neat Cement 5 <br /> Clayey Silt(ML), Light yellowish brown,very hard,non plastic, 2-10ft I <br /> dessicated,no odor,dry to damp. <br /> 10 <br /> 5015 <br /> Bentonite Seal <br /> 10 <br /> I <br /> 10-12 ft <br /> I� <br /> ]5 ;i;:, <br /> 24 Becomes damp to moist. 15 <br /> r ' <br /> EW-7 <br /> 2-inch SCH 80 PVC, p <br /> i 20 _ 0.020-inch Slot I° <br /> ll 24 EW-7.20 1033 Trace sand. Screen I5-25 ft 20 <br /> #3 Filter Pack Sand <br /> 12-26 ft <br /> Clay(CL). Olive gray,hard,high plasticity,moderate hydrocarbon- <br /> 25 Q Peke odor,saturated. <br /> I7 25 <br /> Bentonite Seal <br /> 30 2630 ft <br /> 11 Slight hydrocarbon-like odor. 30 <br /> SP-7 <br /> 1-inch SCH 80 PVC, <br /> v 0.020-inch Slot <br /> Screen 31-33 ft <br /> :: k3 Elwr Pack Sand <br /> 35 <br /> 30,34 fi <br /> 33 Silty Sand(SM). Bluish gray,very fine to fine grained sand,dense, bentonite Sea] 35 <br /> i <br /> sandy silt interbeds,strong hydrocarbon-like odor,saturated. <br /> 60 <br /> 54-37 R <br /> Y <br /> r <br /> UM2670 Gateway Oaks Dr.,Ste 300 �. <br /> Saaanrato,CA 95833 <br /> 916-679-2000 <br />