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World FaMprises of Vapor Extraction Well: <br /> Location: Turnpike Rd.Stockton,CA Project Number: 17325532 VW_9 <br /> Dates Drilled: 6/1/05 Total Depth: 16.5 feet bgs Borehole Name: VW-9 <br /> Drilling Contractor: Gregg Drilling Well Construction Date: 6/1/05 Logged By: Jeff Brooks,PG <br /> Borehole Diameter: 8-inch Casing Diameter: 1-inch Casing Type: SCH 40 PVC Checked By: Vern Elarth,PG <br /> Drilling Method: Hollow Stem Auger Screen Interval: 6-16 ft Slot Size: 0.020-inch Sampling Method: CA Modified split spoon <br /> Comments: Between VW-1 and VW-10 on west property line. <br /> 7 <br /> q �e, q � <br /> x a t C7 LITHOLOGY DESCRIPTION WELL CONSTRUCTION <br /> 3'locking stove pipe <br /> completion <br /> Well secured with gas <br /> measurement valve cap. <br /> 1-inch SCH 40 PVC to 6 ft <br /> bgs <br /> 0 Neat cement from surface to 4 0 <br /> 7i, 7i Grass and topsoil. ft bgs <br /> Silty Sand(SM). Light olive brown,80%very fine to medium <br /> grained sand,20%silt,moist,medium dense. Minor <br /> cementation,sand compostion dominated by subrounded to <br /> rounded quartz. <br /> Bentonite seal 5 ft <br /> 4 <br /> 5 * 0 1255 *no blow counts-pneumatic sample hammer. 5 <br /> Silty Clay with Sand(CL). Light olive brown,60%low to <br /> moderate plasticity clay,30%silt,10%very fine grained sand, <br /> micaceous, moist,soft to medium stiff. Iron oxide stain over 1-inch SCH 40 PVC <br /> 10 0 1300 20%of sample. 0.020-inch slot screen 6-16 ft 10 <br /> Pea gravel 5-16.5 ft <br /> Sandy Clay(CL). Yellowish brown,low plasticity clay,40% <br /> very fine to medium-grained sand, moist,medium stiff. <br /> 15 0 1305 15 <br /> 2870 Gateway Oaks Dr.,Ste 300 <br /> Sacramento,CA 95833 <br /> URS916-679-2000 <br />