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Project: ARCO Station #5450 Log of Monitoring w���; <br /> [L�o:cjaflonw: Fremont remto <br /> ont Ave.,Stockton,CA Project Number: 38465465 jy]yr}to <br /> Dales Drilled: 8/28/02 Total depth DriBeB: 23.5 ft bgs <br /> Logged By: S.l ookingbill <br /> Drilling Contractor PC Exploration Borehole Diameter 8-iweh <br /> Checked By: V.EL-.Ib <br /> Rig Type: 840 Well Construction Dates: 8/28102 <br /> Screen Slot Size:0.010-inch <br /> Drilling Method; Hollow Stem Auger Well Diameter: 2-inch <br /> Drill Bit: 8-inch Hollow Stern Auger T}rpe of Well Casing: SCH 40 PVC <br /> Comments: <br /> U <br /> w O-17 <br /> U p <br /> CW) <br /> w .G� <br /> q = <br /> 0 <br /> LrMOLOGY DESCRUMON 'WELL CONS MUMON <br /> Aggregate Base Plush Mount 7Box0 <br /> &ndY Clay(CL). Yellow brown,medium <br /> plasticity,trace fine to medium sand,trace 2-inch SCH 4gravel,moist,no odor. locking pressu <br /> Neat Cement to Y bgs <br /> 5 0.0 �/ 1 g Chy(CL), Yellow brown,iron oxide staining, <br /> if1y1YE! stiff,moist,no odor. 5 <br /> 5-7'Bentonite Seal <br /> 10 0 0 28 <br /> Clay(CL)- Yellow brown,iron oxide staining 10 <br /> stiff,trace gravel.moist,no odor. <br /> Clay(CH). Yellow brown,high plasticity, '?'= 8-23'2-inch SCH 40 PVC, <br /> medium stiff,trace gravel,moist,no odor. :=:= 0.010-inch Slot Screen, Filter <br /> Pack#2112 Sand <br /> 15 ©0 13 <br /> 15 <br /> x <br /> Sandy Clay(CL). Yellow brown,minor iron <br /> 20 -- 0 0 oaidc staining,very fine to fine sand.trace <br /> J x gavel,saturated. 20 <br /> :K. bT�l Depth of Boring 23.5' <br /> �t <br /> 2$70 GWcway tai Dr..Sic 300 <br /> Saemnmo.CA 95®3 <br /> 9 t6-679-2000 <br />