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i <br /> Project: ARCO Station#5450 Log of Monitoring Well: <br /> Location: 1617 Fremont Ave.,Stockton,CA Project Number: 38465965 _3 <br /> Dates Drilled: 8!28/02Total Depth Drilled: 2G.5 ft bgs Logged By: S.Lookingbill <br /> Drilling Contractor: PC Exploradon Borehole Diameter: 8-inch Checked By_ V.Elarth <br /> •RigType: B-40 Well Construction Dates: 8/26/02 Screen Slot Size:0.010-inch <br /> Drilling Method: }follow Stem Auger Well Diameter. 2-inch <br /> Drill Bit 8-inch Hollow Stem Auger Type of Well Casing: SCH 40 PVC <br /> Comments: <br /> o it <br /> w d O:ed <br /> h � � <br /> Cn.. °' v LPrLIOLOGY DESCRIPTION 'WELL CONSTRUCTION <br /> D <br /> AsphaltlRoad base gravel. Plush Mount Christy Box 0 <br /> .3 <br /> Silty Clay(CL). Dark yellow brown,trace fine 2-inch SCH 40 PVC with <br /> sand,damp,no odor. Increasing sand content locking pressure cap to 8'bgs <br /> with depth. <br /> Neat Cement to 5'bgs <br /> 5 D.0 12 Silty Sand(SM). Light olive brown,fine graintd, <br /> poorly sorted,damp,no odor. 5 <br /> Sandy Silt(ML). Dark yellow brown,soft,moist, <br /> DO odor. 5-7'Bentonite Seal <br /> Sandy Clay(CL). Dark reddish brown,fine sand, <br /> iron oxide staining,stiff,damp,no odor- <br /> 10 0.0 23 IO <br /> ON, <br /> 15 0.0 2$ <br /> Sandy Clay(CL). Olive brown,fine sand,iron8-23'2-inch SCH 40 PVC, f 5 <br /> oxide staining,stiff,damp,no odor. 0.010-inch Slot Screem, I"71ter <br /> Pack#7J12 Saud <br /> iX XX <br /> 20 <br /> 0.0 — Sandy Clay(CL). Olive brown,fine sand,iron 20 <br /> oxide Staining,stiff,saturated,130 odor. <br /> II <br /> 2S. { <br /> O.D — Silty Clay(CL). Olive brown,trace sand,stiff, \ 25 <br /> saturated,no odors. \�\.. Total <br /> ;i Depth of Boring 26-5' <br /> ,r <br /> 4%M Gm"0*3 DC,Ste 300 <br /> Sean .CA 95$13 <br /> ;916679-Zn()0 ' <br /> } <br />