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Project: ARCO Station #5450 Log of Monitoring Well: <br /> Location: 1617 Fremont Ave.,Stockton,CA Project Number: 38465965 MW-3 <br /> Dates Drilled: 8128102 Total Depth Drilled: 26.5 ft bgs Logged By: S.Lookingbill <br /> IGng Contractor: PC Exploration Borehole Diameter: 8-inch Checked By: V.Elarth <br /> i <br /> Rig Type: B-40 Well Construction Dates: 8128/02 Screen Slot Size: 0,010-inch <br /> i <br /> Drilling Method: Hollow Stem Auger Well Diameter: 2-inch <br /> ' Drill Bit: 8-inch Hollow Stem Auger Type of Well Casing: SCH 40 PVC <br />� Comments: <br /> G D <br /> A. Go. 3 o0 <br /> C7 UMOLOGY DESCRIPTION 'WELL CONSTRUMON <br /> 1 4 <br /> Ld <br /> ad base gravel. Flush Mount Christy Boz <br /> (CL}. Dark yellow brown,trace fine 2-inch SCH 40 PVC with <br /> ' ,no odor. Increasing sand content locking pressure cap to 8'bgs <br /> . <br /> Neat Cement to Y bgs <br /> ' 5 0 0 72 (SM). Light olive brown,fine grained, <br /> d,damp,no odor. 5 <br /> Sandy Silt(ML). Dark yellow brown,soft,moist, <br /> ' no odor. 5-7'Bentonite Sea] <br /> Sandy Clay(CL). Dark reddish brown,fine sand, <br /> iron oxide staining,stiff,damp,no odor. <br /> 14 4.0 23 10 <br /> 15 4.0 28 <br /> Sandy Clay(CL). Olive brawn,fine sand,iron :::' 8-23'2-inch SCH 40 PVC, 15 <br /> oxide staining,stiff,damp,no odor. 0,010-inch Slot Screen, Filter <br /> Pack#2tl2 Sand <br /> 20 0.4 - <br /> Sandy Clay(CL). Olive brown,fine sand,iron20 <br /> oxide staining,stiff,saturated,no odor. <br /> Silty Clay(CL). Olive brown,trace sand,stiff, 25 <br /> saturated,no odors. \ \\ Total Depth of Boring 26.5' <br /> tMS2670 Gateway Oaks Dr.,Ste 300 <br /> Sttna to,CA 95&33 <br /> 916-679-20DO <br />